CN108752645A - A kind of edible packing membrane and preparation method thereof with high-barrier function - Google Patents
A kind of edible packing membrane and preparation method thereof with high-barrier function Download PDFInfo
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- CN108752645A CN108752645A CN201810401401.6A CN201810401401A CN108752645A CN 108752645 A CN108752645 A CN 108752645A CN 201810401401 A CN201810401401 A CN 201810401401A CN 108752645 A CN108752645 A CN 108752645A
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- parts
- starch
- barrier function
- barrier
- edible packing
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- 239000012528 membrane Substances 0.000 title claims abstract description 44
- 238000012856 packing Methods 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims description 30
- 229920002472 Starch Polymers 0.000 claims abstract description 71
- 239000008107 starch Substances 0.000 claims abstract description 71
- 235000019698 starch Nutrition 0.000 claims abstract description 71
- 238000004132 cross linking Methods 0.000 claims abstract description 35
- 241000219109 Citrullus Species 0.000 claims abstract description 32
- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 claims abstract description 32
- 230000004888 barrier function Effects 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 26
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 25
- 239000001913 cellulose Substances 0.000 claims abstract description 23
- MLFHJEHSLIIPHL-UHFFFAOYSA-N isoamyl acetate Chemical compound CC(C)CCOC(C)=O MLFHJEHSLIIPHL-UHFFFAOYSA-N 0.000 claims abstract description 20
- 108010010803 Gelatin Proteins 0.000 claims abstract description 18
- 239000008273 gelatin Substances 0.000 claims abstract description 18
- 229920000159 gelatin Polymers 0.000 claims abstract description 18
- 235000019322 gelatine Nutrition 0.000 claims abstract description 18
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229920003124 powdered cellulose Polymers 0.000 claims abstract description 17
- 235000019814 powdered cellulose Nutrition 0.000 claims abstract description 17
- BFRLRGJQKQUFHK-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)propane-1,3-diol;phthalic acid Chemical compound OCC(CO)(CO)CO.OC(=O)C1=CC=CC=C1C(O)=O BFRLRGJQKQUFHK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 241000206575 Chondrus crispus Species 0.000 claims abstract description 9
- 229940117955 isoamyl acetate Drugs 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims description 35
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 229920001046 Nanocellulose Polymers 0.000 claims description 23
- 229920001184 polypeptide Polymers 0.000 claims description 23
- 102000004196 processed proteins & peptides Human genes 0.000 claims description 23
- 108090000765 processed proteins & peptides Proteins 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 19
- 239000000017 hydrogel Substances 0.000 claims description 18
- 229920002101 Chitin Polymers 0.000 claims description 15
- 108010059892 Cellulase Proteins 0.000 claims description 14
- 229940106157 cellulase Drugs 0.000 claims description 14
- 239000007900 aqueous suspension Substances 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- 239000001856 Ethyl cellulose Substances 0.000 claims description 12
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 12
- WMGSQTMJHBYJMQ-UHFFFAOYSA-N aluminum;magnesium;silicate Chemical compound [Mg+2].[Al+3].[O-][Si]([O-])([O-])[O-] WMGSQTMJHBYJMQ-UHFFFAOYSA-N 0.000 claims description 12
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 12
- 229920001249 ethyl cellulose Polymers 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 11
- 229920006280 packaging film Polymers 0.000 claims description 11
- 239000012785 packaging film Substances 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 239000000706 filtrate Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 239000000845 maltitol Substances 0.000 claims description 10
- 235000010449 maltitol Nutrition 0.000 claims description 10
- VQHSOMBJVWLPSR-WUJBLJFYSA-N maltitol Chemical compound OC[C@H](O)[C@@H](O)[C@@H]([C@H](O)CO)O[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O VQHSOMBJVWLPSR-WUJBLJFYSA-N 0.000 claims description 10
- 229940035436 maltitol Drugs 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 9
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 9
- 238000002604 ultrasonography Methods 0.000 claims description 8
- 229920001661 Chitosan Polymers 0.000 claims description 6
- 229920002261 Corn starch Polymers 0.000 claims description 5
- 238000000498 ball milling Methods 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 239000008120 corn starch Substances 0.000 claims description 5
- 229940099112 cornstarch Drugs 0.000 claims description 5
- 239000003431 cross linking reagent Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 230000007062 hydrolysis Effects 0.000 claims description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 5
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 5
- 239000006228 supernatant Substances 0.000 claims description 5
- 239000005341 toughened glass Substances 0.000 claims description 5
- -1 Isopentyl ester Chemical class 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 abstract description 6
- 230000002079 cooperative effect Effects 0.000 abstract description 2
- 231100001261 hazardous Toxicity 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 10
- 235000013339 cereals Nutrition 0.000 description 8
- 235000013305 food Nutrition 0.000 description 8
- 238000004806 packaging method and process Methods 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 7
- 238000009447 edible packaging Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000008642 Parepectolin Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 235000010980 cellulose Nutrition 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- QCVGEOXPDFCNHA-UHFFFAOYSA-N 5,5-dimethyl-2,4-dioxo-1,3-oxazolidine-3-carboxamide Chemical compound CC1(C)OC(=O)N(C(N)=O)C1=O QCVGEOXPDFCNHA-UHFFFAOYSA-N 0.000 description 1
- 244000241257 Cucumis melo Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-N Formic acid Chemical class OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 1
- 229910001051 Magnalium Inorganic materials 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 235000013871 bee wax Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000014103 egg white Nutrition 0.000 description 1
- 210000000969 egg white Anatomy 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229940088598 enzyme Drugs 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/463—Edible packaging materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2303/04—Starch derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/02—Cellulose; Modified cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/08—Cellulose derivatives
- C08J2401/26—Cellulose ethers
- C08J2401/28—Alkyl ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2489/00—Characterised by the use of proteins; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1545—Six-membered rings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Jellies, Jams, And Syrups (AREA)
- General Preparation And Processing Of Foods (AREA)
Abstract
The invention discloses a kind of edible packing membranes with high-barrier function, including following raw material：Modified crosslinking starch, gelatin, powdered cellulose, pentaerythritol phthalate, barrier reinforcing agent, isoamyl acetate.A kind of edible packing membrane with high-barrier function of the present invention, crosslinked starch has network compactness, but compactness is not very strong, mechanical property is not good enough simultaneously, and watermelon peel is carried out a series of processing by the present invention, the safety for preparing nano-cellulose is non-hazardous, nano-cellulose has the performances such as highly elastic film amount, high intensity simultaneously, network structure of reporting to the leadship after accomplishing a task can be formed with crosslinked starch, network compactness is very strong, there is carragheen very strong tensile strength, main base of the three as modified crosslinking starch to play cooperative effect.
Description
Technical field
The present invention relates to edible packaging technical field of membrane, and in particular to a kind of edible packaging with high-barrier function
Film and preparation method thereof.
Background technology
Before edible packing material can trace back to centuries, the Han dynasty far away from China when Zhen He travelling to the West, that is, has used bee
Wax encapsulate fruit, enable fruit be subjected to the influence of varying environment weather for a long time and be able to storage with it is fresh-keeping, also modern age general
Film is made in glutinous rice flour, is used for the anti-sticking inner packing of candy；Edible packaging, you can with the packaging used, generally by starch, egg
White matter, polysaccharide, fat, complex class material composition, be widely used in as preservative film, packing film, high point packaging, food packaging,
Cake packaging, seasoning packaging etc., with the development of modern food industry, food packaging is constantly updated, and one kind can improve packing timber
Contradictory novel foodstuff packing technique material edible packaging is shown one's talent between material and environmental protection, and edible packing material is
Refer to after the function of packaging is realized, which can be changed into a kind of animal or the edible raw material of people, be that a kind of can be achieved to pack
The extra package material of material function transition, edible packing material is a kind of packaging of no waste, is a kind of resource type ring
The packaging material of guarantor's type.
In the prior art, edible packing membrane is using edible natural substance as raw material, though degradation can be played, food can be increased
Flavor nutrition ingredient etc., but vapor, oxygen permeability are high, and food easily deliquesces, is corrupt, Chinese patent literature (publication number：
CN101899173A a kind of edible starch-based food packaging film and preparation method thereof) is disclosed, is compound to stabilize crosslinking
Converted starch is main film forming raw material, adds the auxiliary materials such as plasticizer, lubricant, reinforcing agent and the stabilizer of food-grade, passes through height
Speed is stirred, double-screw extruding pelletizing, Single screw extrusion blown film, and crosslinked starch is stabilized in the invention raw material by modified
Though having spacial framework, using multiple auxiliary materials filling collocation, network compactness is not also very strong, and vapor, oxygen ooze
It still needs to further increase in saturating rate, in addition mechanical property or not good enough.
Invention content
The purpose of the present invention is to provide a kind of edible packing membranes with high-barrier function, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides the following technical solutions：
A kind of edible packing membrane with high-barrier function, including following raw material：
Modified crosslinking starch, gelatin, powdered cellulose, pentaerythritol phthalate, barrier reinforcing agent, acetic acid isoamyl
Ester；
The modified crosslinking starch includes following raw material：32-38 parts of crosslinked starch, watermelon bark nano cellulose
24-30,14-18 parts of carragheen, 6-12 parts of ethyl cellulose aqueous suspension, 4-8 parts of maltitol, 2-5 parts of aluminium-magnesium silicate, talcum
1-3 parts of powder, 14-20 parts of deionized water；
The crosslinked starch is wheaten starch, cornstarch using calgon as crosslinking agent, and sodium hydroxide is catalyst
Crosslinked starch is made；
The watermelon bark nano cellulose preparation method is to clean watermelon peel with clear water, is subsequently cut to of uniform size piece
Shape is re-fed into drying box and is dried, and dry 15-25min is then crushed, and it is 40-80 mesh to be crushed to grain size, then
The sulfuric acid solution for being 10% with mass fraction is acidified, then is alkalized to solution neutral with sodium hydroxide solution, followed in turn by quality point
Number cleans for 96% ethanol solution, will be dried in filter residue to thermostatic drying chamber after cleaning, and dry 4-8h is subsequently sent to stir
It mixes in machine, then it is 50-70% Parepectolins, speed of agitator 155-195r/min, stirring that mass fraction is added thereto
Time is 35-45min, is subsequently sent to be filtered in atlapulgite filter, filtrate is added in centrifuge and is centrifuged,
Centrifugal rotational speed 1550-1750r/min centrifuges 35-45min, will obtain drying for standby in supernatant to drying box, then use fiber
Plain enzyme enzymolysis, enzymolysis time 45-55min is then filtered with 0.35-0.45um micropore filtering films, then filtrate is sent into and is done
12-18h is dried in dry case, then carries out ball milling with ball mill, until grain size be 20-100 mesh to get watermelon bark nano
Element.
It is as further scheme of the invention：The edible packing membrane with high-barrier function includes following weight
Part raw material：
36-42 parts of modified crosslinking starch, 22-26 parts of gelatin, 12-16 parts of powdered cellulose, pentaerythrite phthalic acid
5-9 parts of ester, 3-7 parts of reinforcing agent of barrier, 12-18 parts of isoamyl acetate.
It is as further scheme of the invention：The modified crosslinking starch preparation method is by crosslinked starch, carragheen
It is add to deionized water and is disperseed, speed of agitator 65-95r/min, mixing time 15-25min then add thereto
Enter aluminium-magnesium silicate, talcum powder, carries out ultrasonic disperse, ultrasonic power 600-1000W, ultrasonic 45-55min, then west is added thereto
Melon skin nano-cellulose, maltitol continue to stir 25-35min, and rotating speed rises to 105-115r/min, is eventually adding ethyl cellulose
Plain aqueous suspension, constant temperature stirs 1-3h in ultrasound bath, then uses knifing machine knifing on tempered glass, film thickness 0.4-
Film is dried in vacuo by 1mm, is then shredded, and is sent in Minitype twin-screw extrusion machine and is carried out blending extrusion and be granulated
Up to modified crosslinking starch.
It is as further scheme of the invention：Barrel temperature is 145-165 DEG C in the Minitype twin-screw extrusion machine, spiral shell
Bar rotating speed is 45-55r/min.
It is as further scheme of the invention：The watermelon bark nano cellulose preparation method cellulase solution condition
For cellulase concentration 150-250u/mL, 55-65 DEG C of hydrolysis temperature.
It is as further scheme of the invention：The barrier reinforcing agent is chitin modified polypeptide hydrogel.
It is as further scheme of the invention：The chitin modified polypeptide hydrogel is that polypeptide is added to the water progress
Chitosan is then added in dispersion, speed of agitator 95-105r/min thereto again, until solution concentration is 0.01-1mg/ml, with
It is 8-9 to adjust pH afterwards, stands 1-2h to get chitin modified polypeptide hydrogel.
The present invention also provides a kind of preparation methods of the edible packing membrane with high-barrier function, include the following steps：
Step 1 weighs each component raw material as required；
Modified crosslinking starch, gelatin, powdered cellulose are stirred dissolving by step 2 in a water bath, and speed of agitator is
65-75r/min, mixing time 25-35min, then thereto be added pentaerythritol phthalate, barrier reinforcing agent,
Isoamyl acetate carries out ultrasonic disperse 45-55min, obtains composite membrane liquid；
Step 2 is obtained composite membrane liquid and is laid in square plate by step 3, thickness 10-20mm, is subsequently sent to true
In empty drying box, drying temperature be 25-35 DEG C, drying time be 18-24h to get the present invention with high-barrier function can
Feeding habits packaging film.
Compared with prior art, the present invention has following advantageous effect：
(1) a kind of edible packing membrane with high-barrier function of the invention, crosslinked starch have network compactness, but
Compactness is not very strong, while mechanical property is not good enough, and watermelon peel is carried out a series of processing by the present invention, prepares nanofibers
Plain safety is non-hazardous, while nano-cellulose has the performances such as highly elastic film amount, high intensity, and net of reporting to the leadship after accomplishing a task can be formed with crosslinked starch
Network structure, network compactness is very strong, and carragheen has very strong tensile strength, main base of the three as modified crosslinking starch
Material, plays cooperative effect, and aluminium-magnesium silicate has unique three dimensions chain structure, further increases packaging film to close property, after
And vapor, oxygen permeability are significantly reduced, ethyl cellulose aqueous suspension improves the flexible of packaging film in film forming
Property, packaging film dynamic performance can be made to enhance, gelatin has good heat sealability, higher gas barrier properties, pentaerythrite neighbour benzene two
Formic acid esters plays filling effect, coordination is collocated with each other between raw material as plasticizer, powdered cellulose as filler, make barrier,
Mechanical property is greatly improved, and it is chitin modified polypeptide hydrogel to obstruct reinforcing agent in addition, and polypeptide hydrogel has netted
Structure, chitosan have good biocompatibility and degradability, the modification of chitin modified polypeptide hydrogel are added to edible
Packaging film barrier property is further improved in property packaging film.
Specific implementation mode
With reference to specific embodiment, technical scheme in the embodiment of the invention is clearly and completely described, shows
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment 1：
A kind of edible packing membrane with high-barrier function of the present embodiment, including following raw material：
Modified crosslinking starch, gelatin, powdered cellulose, pentaerythritol phthalate, barrier reinforcing agent, acetic acid isoamyl
Ester；
The modified crosslinking starch includes following raw material：32 parts of crosslinked starch, watermelon bark nano cellulose 24, card
Draw 14 parts of glue, 6 parts of ethyl cellulose aqueous suspension, 4 parts of maltitol, 2 parts of aluminium-magnesium silicate, 1 part of talcum powder, deionized water 14
Part；
The crosslinked starch is wheaten starch, cornstarch using calgon as crosslinking agent, and sodium hydroxide is catalyst
Crosslinked starch is made；
The watermelon bark nano cellulose preparation method is to clean watermelon peel with clear water, is subsequently cut to of uniform size piece
Shape is re-fed into drying box and is dried, and dry 15min is then crushed, and it is 40 mesh to be crushed to grain size, then uses quality
The sulfuric acid solution that score is 10% is acidified, then is alkalized to solution neutral with sodium hydroxide solution, is followed in turn by mass fraction
96% ethanol solution cleaning, will be dried in filter residue to thermostatic drying chamber after cleaning, and dry 4h is subsequently sent to blender
In, then thereto be added mass fraction be 50% Parepectolin, speed of agitator 155r/min, mixing time 35min,
It is subsequently sent to be filtered in atlapulgite filter, filtrate is added in centrifuge and is centrifuged, centrifugal rotational speed 1550r/
Min centrifuges 35min, will obtain drying for standby in supernatant to drying box, then uses cellulase degradation, enzymolysis time
45min is then filtered with 0.35um micropore filtering films, then filtrate is sent into drying box, 12-18h is dried, then
Carry out ball milling with ball mill, until grain size be 20 mesh to get watermelon bark nano cellulose.
The edible packing membrane with high-barrier function of the present embodiment includes following raw material：
36 parts of modified crosslinking starch, 22 parts of gelatin, 12 parts of powdered cellulose, 5 parts of pentaerythritol phthalate, barrier
3 parts of reinforcing agent, 12 parts of isoamyl acetate.
The modified crosslinking starch preparation method of the present embodiment is that crosslinked starch, carragheen are add to deionized water progress
Aluminium-magnesium silicate, talcum powder is then added in dispersion, speed of agitator 65r/min, mixing time 15min thereto, carries out ultrasound
Dispersion, ultrasonic power 600W, ultrasonic 45min, then addition watermelon bark nano cellulose, maltitol continue to stir thereto
25min, rotating speed rise to 105r/min, are eventually adding ethyl cellulose aqueous suspension, and constant temperature stirs 1h in ultrasound bath, with
Knifing machine knifing on tempered glass, film thickness 0.4mm is used to be dried in vacuo film, then shredded, is sent to miniature afterwards
Blending extrusion is carried out in double screw extruder and is granulated up to modified crosslinking starch.
Barrel temperature is 145 DEG C in the Minitype twin-screw extrusion machine of the present embodiment, screw speed 45r/min.
The watermelon bark nano cellulose preparation method cellulase solution condition of the present embodiment is cellulase concentration 150u/
ML, 55 DEG C of hydrolysis temperature.
The barrier reinforcing agent of the present embodiment is chitin modified polypeptide hydrogel.
The chitin modified polypeptide hydrogel of the present embodiment is added to the water for polypeptide to be disperseed, speed of agitator 95r/
Chitosan is then added in min thereto again, until solution concentration is 0.01mg/ml, it is 8 then to adjust pH, stands 1h to get shell
Glycan modified polypeptides hydrogel.
A kind of preparation method of edible packing membrane with high-barrier function of the present embodiment, includes the following steps：
Step 1 weighs each component raw material as required；
Modified crosslinking starch, gelatin, powdered cellulose are stirred dissolving by step 2 in a water bath, and speed of agitator is
It is different that pentaerythritol phthalate, barrier reinforcing agent, acetic acid is then added in 65r/min, mixing time 25min thereto
Pentyl ester carries out ultrasonic disperse 45min, obtains composite membrane liquid；
Step 2 is obtained composite membrane liquid and is laid in square plate by step 3, thickness 10mm, and it is dry to be subsequently sent to vacuum
In dry case, drying temperature is 25 DEG C, and drying time is edible packing membranes with high-barrier function of the 18h to get the present invention.
Embodiment 2：
A kind of edible packing membrane with high-barrier function of the present embodiment, including following raw material：
Modified crosslinking starch, gelatin, powdered cellulose, pentaerythritol phthalate, barrier reinforcing agent, acetic acid isoamyl
Ester；
The modified crosslinking starch includes following raw material：38 parts of crosslinked starch, watermelon bark nano cellulose 30, card
Draw 18 parts of glue, 12 parts of ethyl cellulose aqueous suspension, 8 parts of maltitol, 5 parts of aluminium-magnesium silicate, 3 parts of talcum powder, deionized water 20
Part；
The crosslinked starch is wheaten starch, cornstarch using calgon as crosslinking agent, and sodium hydroxide is catalyst
Crosslinked starch is made；
The watermelon bark nano cellulose preparation method is to clean watermelon peel with clear water, is subsequently cut to of uniform size piece
Shape is re-fed into drying box and is dried, and dry 25min is then crushed, and it is 80 mesh to be crushed to grain size, then uses quality
The sulfuric acid solution that score is 10% is acidified, then is alkalized to solution neutral with sodium hydroxide solution, is followed in turn by mass fraction
96% ethanol solution cleaning, will be dried in filter residue to thermostatic drying chamber after cleaning, and dry 8h is subsequently sent to blender
In, then thereto be added mass fraction be 70% Parepectolin, speed of agitator 195r/min, mixing time 45min,
It is subsequently sent to be filtered in atlapulgite filter, filtrate is added in centrifuge and is centrifuged, centrifugal rotational speed 1750r/
Min centrifuges 45min, will obtain drying for standby in supernatant to drying box, then uses cellulase degradation, enzymolysis time
55min is then filtered with 0.45um micropore filtering films, then filtrate is sent into drying box, 18h is dried, and then uses ball
Grinding machine carry out ball milling, until grain size be 100 mesh to get watermelon bark nano cellulose.
The edible packing membrane with high-barrier function of the present embodiment includes following raw material：
42 parts of modified crosslinking starch, 26 parts of gelatin, 16 parts of powdered cellulose, 9 parts of pentaerythritol phthalate, barrier
7 parts of reinforcing agent, 18 parts of isoamyl acetate.
The modified crosslinking starch preparation method of the present embodiment is that crosslinked starch, carragheen are add to deionized water progress
Aluminium-magnesium silicate, talcum powder is then added in dispersion, speed of agitator 95r/min, mixing time 25min thereto, carries out ultrasound
Dispersion, ultrasonic power 1000W, ultrasonic 55min, then addition watermelon bark nano cellulose, maltitol continue to stir thereto
35min, rotating speed rise to 115r/min, are eventually adding ethyl cellulose aqueous suspension, and constant temperature stirs 3h in ultrasound bath, with
It uses knifing machine knifing on tempered glass, film thickness 1mm to be dried in vacuo film, then shredded afterwards, is sent to miniature double
Blending extrusion is carried out in screw extruder and is granulated up to modified crosslinking starch.
Barrel temperature is 165 DEG C in the Minitype twin-screw extrusion machine of the present embodiment, screw speed 55r/min.
The watermelon bark nano cellulose preparation method cellulase solution condition of the present embodiment is cellulase concentration 250u/
ML, 65 DEG C of hydrolysis temperature.
The barrier reinforcing agent of the present embodiment is chitin modified polypeptide hydrogel.
The chitin modified polypeptide hydrogel of the present embodiment is added to the water for polypeptide to be disperseed, and speed of agitator is
Chitosan is then added in 105r/min thereto again, until solution concentration be 1mg/ml, then adjust pH be 9, stand 2h to get
Chitin modified polypeptide hydrogel.
A kind of preparation method of edible packing membrane with high-barrier function of the present embodiment, includes the following steps：
Step 1 weighs each component raw material as required；
Modified crosslinking starch, gelatin, powdered cellulose are stirred dissolving by step 2 in a water bath, and speed of agitator is
It is different that pentaerythritol phthalate, barrier reinforcing agent, acetic acid is then added in 75r/min, mixing time 35min thereto
Pentyl ester carries out ultrasonic disperse 55min, obtains composite membrane liquid；
Step 2 is obtained composite membrane liquid and is laid in square plate by step 3, thickness 20mm, and it is dry to be subsequently sent to vacuum
In dry case, drying temperature is 35 DEG C, and drying time is for 24 hours to get the edible packing membrane with high-barrier function of the present invention.
Embodiment 3：
A kind of edible packing membrane with high-barrier function of the present embodiment, including following raw material：
Modified crosslinking starch, gelatin, powdered cellulose, pentaerythritol phthalate, barrier reinforcing agent, acetic acid isoamyl
Ester；
The modified crosslinking starch includes following raw material：35 parts of crosslinked starch, watermelon bark nano cellulose 27, card
Draw 16 parts of glue, 9 parts of ethyl cellulose aqueous suspension, 6 parts of maltitol, 3.5 parts of aluminium-magnesium silicate, 2 parts of talcum powder, deionized water 17
Part；
The crosslinked starch is wheaten starch, cornstarch using calgon as crosslinking agent, and sodium hydroxide is catalyst
Crosslinked starch is made；
The watermelon bark nano cellulose preparation method is to clean watermelon peel with clear water, is subsequently cut to of uniform size piece
Shape is re-fed into drying box and is dried, and dry 20min is then crushed, and it is 60 mesh to be crushed to grain size, then uses quality
The sulfuric acid solution that score is 10% is acidified, then is alkalized to solution neutral with sodium hydroxide solution, is followed in turn by mass fraction
96% ethanol solution cleaning, will be dried in filter residue to thermostatic drying chamber after cleaning, and dry 6h is subsequently sent to blender
In, then thereto be added mass fraction be 60% Parepectolin, speed of agitator 170r/min, mixing time 40min,
It is subsequently sent to be filtered in atlapulgite filter, filtrate is added in centrifuge and is centrifuged, centrifugal rotational speed 1600r/
Min centrifuges 40min, will obtain drying for standby in supernatant to drying box, then uses cellulase degradation, enzymolysis time
50min is then filtered with 0.40um micropore filtering films, then filtrate is sent into drying box, 15h is dried, and then uses ball
Grinding machine carry out ball milling, until grain size be 60 mesh to get watermelon bark nano cellulose.
The edible packing membrane with high-barrier function of the present embodiment includes following raw material：
39 parts of modified crosslinking starch, 24 parts of gelatin, 14 parts of powdered cellulose, 7 parts of pentaerythritol phthalate, barrier
5 parts of reinforcing agent, 15 parts of isoamyl acetate.
The modified crosslinking starch preparation method of the present embodiment is that crosslinked starch, carragheen are add to deionized water progress
Aluminium-magnesium silicate, talcum powder is then added in dispersion, speed of agitator 80r/min, mixing time 20min thereto, carries out ultrasound
Dispersion, ultrasonic power 800W, ultrasonic 50min, then addition watermelon bark nano cellulose, maltitol continue to stir thereto
30min, rotating speed rise to 110r/min, are eventually adding ethyl cellulose aqueous suspension, and constant temperature stirs 2h in ultrasound bath, with
Knifing machine knifing on tempered glass, film thickness 0.7mm is used to be dried in vacuo film, then shredded, is sent to miniature afterwards
Blending extrusion is carried out in double screw extruder and is granulated up to modified crosslinking starch.
Barrel temperature is 150 DEG C in the Minitype twin-screw extrusion machine of the present embodiment, screw speed 50r/min.
The watermelon bark nano cellulose preparation method cellulase solution condition of the present embodiment is cellulase concentration 200u/
ML, 60 DEG C of hydrolysis temperature.
The barrier reinforcing agent of the present embodiment is chitin modified polypeptide hydrogel.
The chitin modified polypeptide hydrogel of the present embodiment is added to the water for polypeptide to be disperseed, and speed of agitator is
Chitosan is then added in 100r/min thereto again, until solution concentration is 0.065mg/ml, it is 8.5 then to adjust pH, stands 1-
2h is to get chitin modified polypeptide hydrogel.
A kind of preparation method of edible packing membrane with high-barrier function of the present embodiment, includes the following steps：
Step 1 weighs each component raw material as required；
Modified crosslinking starch, gelatin, powdered cellulose are stirred dissolving by step 2 in a water bath, and speed of agitator is
It is different that pentaerythritol phthalate, barrier reinforcing agent, acetic acid is then added in 70r/min, mixing time 30min thereto
Pentyl ester carries out ultrasonic disperse 50min, obtains composite membrane liquid；
Step 2 is obtained composite membrane liquid and is laid in square plate by step 3, thickness 15mm, and it is dry to be subsequently sent to vacuum
In dry case, drying temperature is 30 DEG C, and drying time is edible packing membranes with high-barrier function of the 21h to get the present invention.
Comparative example 1：
It is essentially identical with the material and preparation process of embodiment 3, it has only the difference is that not adding gelatin.
Comparative example 2：
It is essentially identical with the material and preparation process of embodiment 3, it has only the difference is that not adding barrier reinforcing agent.
Comparative example 3：
It is essentially identical with the material and preparation process of embodiment 3, it has only the difference is that not adding second in modified crosslinking starch
Base cellulose aqueous suspension.
Comparative example 4：
It is essentially identical with the material and preparation process of embodiment 3, it has only the difference is that not adding silicon in modified crosslinking starch
Sour magnalium.
Comparative example 5：
It is essentially identical with the material and preparation process of embodiment 3, it has only the difference is that crosslinked starch is not received using watermelon peel
Rice is cellulose modified.
Comparative example 6：
It is essentially identical with the material and preparation process of embodiment 3, using Chinese patent literature (publication number：
CN101899173A side described in specific embodiment 2 in a kind of edible starch-based food packaging film and preparation method thereof) is disclosed
Edible packing membrane prepared by method.
Edible packing membrane prepared by embodiment 1 to 3 and comparative example 1-6 is tested to obtain the performance test results as follows
It is obtained from 1-3 of the embodiment of the present invention and comparative example 1-6, steam penetrating capacity of the invention, elongation at break, stretching
Intensity is superior to comparative example 1-6, is obtained from comparative example 1-5, and barrier reinforcing agent, aluminium-magnesium silicate influence very steam penetrating capacity
Greatly, ethyl cellulose aqueous suspension influences elongation at break, tensile strength very big, in addition Chinese patent literature (publication number：
CN101899173A steam penetrating capacity in packaging film prepared by a kind of edible starch-based food packaging film, fracture) are disclosed
Elongation, tensile strength are inferior to the steam penetrating capacity, elongation at break, tensile strength of the present invention.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (8)
1. a kind of edible packing membrane with high-barrier function, which is characterized in that including following raw material：
Modified crosslinking starch, gelatin, powdered cellulose, pentaerythritol phthalate, barrier reinforcing agent, isoamyl acetate；
The modified crosslinking starch includes following raw material：32-38 parts of crosslinked starch, watermelon bark nano cellulose 24-30,
14-18 parts of carragheen, 6-12 parts of ethyl cellulose aqueous suspension, 4-8 parts of maltitol, 2-5 parts of aluminium-magnesium silicate, talcum powder 1-3
Part, 14-20 parts of deionized water；
The crosslinked starch is wheaten starch, cornstarch using calgon as crosslinking agent, and sodium hydroxide is made for catalyst
Crosslinked starch；
The watermelon bark nano cellulose preparation method is to clean watermelon peel with clear water, is subsequently cut to bulk of uniform size,
It is re-fed into drying box and is dried, dry 15-25min is then crushed, and it is 40-80 mesh to be crushed to grain size, then uses matter
It measures the sulfuric acid solution that score is 10% to be acidified, then is alkalized to solution neutral with sodium hydroxide solution, be followed in turn by mass fraction
96% ethanol solution cleaning, will be dried in filter residue to thermostatic drying chamber after cleaning, and dry 4-8h is subsequently sent to blender
In, then it is 50-70% Parepectolins, speed of agitator 155-195r/min, mixing time that mass fraction is added thereto
It for 35-45min, is subsequently sent to be filtered in atlapulgite filter, filtrate is added in centrifuge and is centrifuged, centrifuge
Rotating speed 1550-1750r/min centrifuges 35-45min, will obtain drying for standby in supernatant to drying box, then use cellulase
Enzymolysis, enzymolysis time 45-55min are then filtered with 0.35-0.45um micropore filtering films, then filtrate are sent into drying box
In 12-18h is dried, then carry out ball milling with ball mill, until grain size be 20-100 mesh to get watermelon bark nano cellulose.
2. a kind of edible packing membrane with high-barrier function according to claim 1, which is characterized in that described to have
The edible packing membrane of high-barrier function includes following raw material：
36-42 parts of modified crosslinking starch, 22-26 parts of gelatin, 12-16 parts of powdered cellulose, pentaerythritol phthalate 5-9
Part, 3-7 parts of reinforcing agent of barrier, 12-18 parts of isoamyl acetate.
3. a kind of edible packing membrane with high-barrier function according to claim 1, which is characterized in that the modification
Crosslinked starch preparation method is to be add to deionized water crosslinked starch, carragheen to disperse, speed of agitator 65-95r/
Aluminium-magnesium silicate, talcum powder is then added in min, mixing time 15-25min thereto, carries out ultrasonic disperse, ultrasonic power
600-1000W, ultrasonic 45-55min, then addition watermelon bark nano cellulose, maltitol continue to stir 25-35min thereto,
Rotating speed rises to 105-115r/min, is eventually adding ethyl cellulose aqueous suspension, and constant temperature stirs 1-3h in ultrasound bath, with
Knifing machine knifing on tempered glass, film thickness 0.4-1mm is used to be dried in vacuo film, then shredded, is sent to micro- afterwards
Blending extrusion is carried out in type double screw extruder and is granulated up to modified crosslinking starch.
4. a kind of edible packing membrane with high-barrier function according to claim 3, which is characterized in that described miniature
Barrel temperature is 145-165 DEG C in double screw extruder, screw speed 45-55r/min.
5. a kind of edible packing membrane with high-barrier function according to claim 1, which is characterized in that the watermelon
Bark nano cellulose preparation method cellulase solution condition is cellulase concentration 150-250u/mL, hydrolysis temperature 55-65
℃。
6. a kind of edible packing membrane with high-barrier function according to claim 1, which is characterized in that the barrier
Reinforcing agent is chitin modified polypeptide hydrogel.
7. a kind of edible packing membrane with high-barrier function according to claim 6, which is characterized in that the shell is poly-
Sugared modified polypeptides hydrogel is added to the water for polypeptide to be disperseed, and speed of agitator 95-105r/min then adds thereto again
Enter chitosan, until solution concentration is 0.01-1mg/ml, it is 8-9 then to adjust pH, stands 1-2h to get chitin modified polypeptide
Hydrogel.
8. a kind of method preparing the edible packing membrane that there is high-barrier function such as claim 1-7 any one of them,
It is characterized in that, includes the following steps：
Step 1 weighs each component raw material as required；
Modified crosslinking starch, gelatin, powdered cellulose are stirred dissolving, speed of agitator 65- by step 2 in a water bath
Pentaerythritol phthalate, barrier reinforcing agent, acetic acid is then added in 75r/min, mixing time 25-35min thereto
Isopentyl ester carries out ultrasonic disperse 45-55min, obtains composite membrane liquid；
Step 2 is obtained composite membrane liquid and is laid in square plate by step 3, thickness 10-20mm, and it is dry to be subsequently sent to vacuum
In dry case, drying temperature is 25-35 DEG C, and drying time is edibilities with high-barrier function of the 18-24h to get the present invention
Packaging film.
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| WO2023083253A1 (en) * | 2021-11-11 | 2023-05-19 | Nano And Advanced Materials Institute Limited | Extrudable biodegradable composition materials and extrusion process thereof |
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