CN106883316A - A kind of new method that pectin is extracted from watermelon peel - Google Patents
A kind of new method that pectin is extracted from watermelon peel Download PDFInfo
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- CN106883316A CN106883316A CN201510942523.2A CN201510942523A CN106883316A CN 106883316 A CN106883316 A CN 106883316A CN 201510942523 A CN201510942523 A CN 201510942523A CN 106883316 A CN106883316 A CN 106883316A
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- pectin
- watermelon peel
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- enzyme
- extract solution
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- 241000219109 Citrullus Species 0.000 title claims abstract description 43
- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 title claims abstract description 43
- 229920001277 pectin Polymers 0.000 title claims abstract description 42
- 239000001814 pectin Substances 0.000 title claims abstract description 42
- 235000010987 pectin Nutrition 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 102000004190 Enzymes Human genes 0.000 claims abstract description 15
- 108090000790 Enzymes Proteins 0.000 claims abstract description 15
- 238000000605 extraction Methods 0.000 claims abstract description 11
- 238000001556 precipitation Methods 0.000 claims abstract description 6
- 239000000284 extract Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 8
- 229920000388 Polyphosphate Polymers 0.000 claims description 8
- 239000001205 polyphosphate Substances 0.000 claims description 8
- 235000011176 polyphosphates Nutrition 0.000 claims description 8
- 239000011734 sodium Substances 0.000 claims description 8
- 229910052708 sodium Inorganic materials 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000005119 centrifugation Methods 0.000 claims description 5
- 239000012141 concentrate Substances 0.000 claims description 5
- 238000000354 decomposition reaction Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 235000015203 fruit juice Nutrition 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000000967 suction filtration Methods 0.000 claims description 5
- 239000000047 product Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 230000006837 decompression Effects 0.000 claims description 2
- 239000000706 filtrate Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 239000002904 solvent Substances 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 235000013305 food Nutrition 0.000 description 4
- 239000008236 heating water Substances 0.000 description 4
- 210000000170 cell membrane Anatomy 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 241000219112 Cucumis Species 0.000 description 2
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 2
- SHZGCJCMOBCMKK-UHFFFAOYSA-N D-mannomethylose Natural products CC1OC(O)C(O)C(O)C1O SHZGCJCMOBCMKK-UHFFFAOYSA-N 0.000 description 2
- SHZGCJCMOBCMKK-JFNONXLTSA-N L-rhamnopyranose Chemical compound C[C@@H]1OC(O)[C@H](O)[C@H](O)[C@H]1O SHZGCJCMOBCMKK-JFNONXLTSA-N 0.000 description 2
- PNNNRSAQSRJVSB-UHFFFAOYSA-N L-rhamnose Natural products CC(O)C(O)C(O)C(O)C=O PNNNRSAQSRJVSB-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 239000000203 mixture Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- IAJILQKETJEXLJ-UHFFFAOYSA-N Galacturonsaeure Natural products O=CC(O)C(O)C(O)C(O)C(O)=O IAJILQKETJEXLJ-UHFFFAOYSA-N 0.000 description 1
- 229920002230 Pectic acid Polymers 0.000 description 1
- IAJILQKETJEXLJ-RSJOWCBRSA-N aldehydo-D-galacturonic acid Chemical compound O=C[C@H](O)[C@@H](O)[C@@H](O)[C@H](O)C(O)=O IAJILQKETJEXLJ-RSJOWCBRSA-N 0.000 description 1
- 230000001093 anti-cancer Effects 0.000 description 1
- 230000001142 anti-diarrhea Effects 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- PYMYPHUHKUWMLA-WDCZJNDASA-N arabinose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)C=O PYMYPHUHKUWMLA-WDCZJNDASA-N 0.000 description 1
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 239000010318 polygalacturonic acid Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0003—General processes for their isolation or fractionation, e.g. purification or extraction from biomass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0045—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Galacturonans, e.g. methyl ester of (alpha-1,4)-linked D-galacturonic acid units, i.e. pectin, or hydrolysis product of methyl ester of alpha-1,4-linked D-galacturonic acid units, i.e. pectinic acid; Derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Sustainable Development (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Jellies, Jams, And Syrups (AREA)
Abstract
The invention discloses a kind of new method that pectin is extracted from watermelon peel.Methods described comprises the following steps：Sorting, the enzyme that goes out, extraction, decolouring, alcohol precipitation and drying, obtain solid pectin.The present invention provide pectin extraction method, overcome traditional handicraft largely use sour solvent the drawbacks of, gained pectin product purity is high, molecular structure destroy small, no solvent residue；The efficient recycling of watermelon peel is realized, added value of product is substantially increased；The inventive method process is simple is efficient simultaneously, it is easy to industrialization.
Description
Technical field
The present invention relates to a kind of extracting method of pectin, and in particular to be it is a kind of from watermelon peel extract pectin new method.
Background technology
Pectin is a kind of polysaccharide macromolecular compound.The basis of pectin is same polygalacturonic acid (HGA55-65%) and poly- rhamnose galacturonic acid I (RG-I20-35%), also has the neutral sugars such as arabinose, rhamnose, galactolipin on its side chain.Pectin has good gelling and emulsibility, and with physiological functions such as anti-inflammatory, anticancer, anti diar rheas, extremely wide application is suffered from food, medicine, cosmetics and textile industry.
Watermelon peel is usually when people eat watermelon and abandons skin, and after particularly seed melon takes seed, remaining is abandoned in the lump, there is serious waste, and surrounding enviroment are caused with serious influence.Therefore the comprehensive processing and utilization of melon skin, is a problem anxious to be resolved.
Natural pectin is widely present in green higher plant tissue, to organizing emollescence.Pectin is a kind of important composition composition of plant cell wall, is primarily present in the primary wall and intercellular layer of cell membrane.And cell membrane is plant " calcium storehouse ", be primarily present form of the pectin in cell membrane is exactly " protopectin " together with calcium ion complexing, and protopectin is insoluble in water.The process of pectin extraction is sought to change existence form of the pectin in plant, and insoluble pectin is converted into soluble pectin.
At present, the method for pectin extraction is mainly acid system and enzyme process.The subject matter that acid system carries glue is that pectin molecule can be hydrolyzed in acid condition, and glycosidic bond fracture, molecular weight reduction, degree of gelation reduces；Substantial amounts of acid pickle is produced after carrying glue, environment is polluted；When pectin is extracted in different acid, different degrees of dissolvent residual can be also caused；In industrial production, acidity extraction can also cause the corrosion of equipment.The subject matter that enzyme process carries glue is that the price of enzyme is high, produces pectin high cost, is not easy to industrialization.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of new method that pectin is extracted from watermelon peel.To achieve the above object, the present invention uses following technical scheme：A kind of new method that pectin is extracted from watermelon peel, comprises the following steps：
（1）Sorting：After selection and withdrawal fruit juice it is fresh without rotten watermelon peel be raw material；
（2）Go out enzyme：
By selected by step (1) it is fresh without rotten watermelon peel raw material clear water rinsing for several times, remove soluble impurity；Then shred, be placed in stainless steel reaction pot, it is 80~90 DEG C of hot water to add 2~4 times of watermelon peel quality, temperature, soaks 20~30min, with the enzyme being passivated in watermelon peel contained by itself, it is lost activity, prevent its decomposition to pectin；Obtain watermelon peel slurry；
（3）Extract：In above-mentioned watermelon peel slurry, by solid-liquid ratio（g/ml）Add the 0.4~1.0% of 3~5 times polyphosphate sodium to extract solution, carry out the extraction of pectin, 400~600W of microwave power is processed 5~15 minutes, filtering obtains extract solution；
(4) decolourize：Activated carbon decolorizing will be added in extract solution, activated carbon is 1g with the mass volume ratio of solution:100rpm treatment 30-40min under the conditions of 100-150mL, 70-80 DEG C, filtering, filtrate decompression is concentrated into the 1/5 of original volume；
（5）Dry：Take step（4）Obtained concentrate, adds 1.0~2.0 times of 95% ethanol of weight, stands 10~30 minutes, and suction filtration, precipitation is washed several times with 75% ethanol, and centrifugation, the sediment that will be centrifugally separating to obtain is dried under the conditions of 50~60 DEG C, i.e. finished product.
Compared with prior art, the present invention has following beneficial effect：
(1) during the inventive method and sour solvent is not used, its method is small to pectin molecule structural damage, and product purity is high, no solvent residue, not etching apparatus, free from environmental pollution；
(2) microwave auxiliary extraction technology is applied to plant broken wall by the inventive method, compared with traditional heating water bath, greatly accelerates reaction rate；
（3）Broken wall uses polyphosphate sodium processing method, polyphosphate sodium can improve the color of food, shape, the freshness and quality of food can be allowed to be maintained, and the demand of machining process can be allowed to be met, and polyphosphate sodium is very important quality improver in food.
(4) the valuable reagents such as biology enzyme are not used during the inventive method, low production cost, step is simple, easily operation, it is easy to industrialization.
Specific embodiment
It is described further with embodiment below, but the present invention is not limited to these embodiments.
Embodiment 1
A kind of new method that pectin is extracted from watermelon peel, step is as follows：
（1）Sorting：After selection and withdrawal fruit juice it is fresh without rotten watermelon peel be raw material；
（2）Go out enzyme：
By selected by step (1) it is fresh without rotten watermelon peel raw material clear water rinsing for several times, remove soluble impurity；Then shred, be placed in stainless steel reaction pot, it is 80~90 DEG C of hot water to add 2~4 times of watermelon peel quality, temperature, soaks 20~30min, with the enzyme being passivated in watermelon peel contained by itself, it is lost activity, prevent its decomposition to pectin；Obtain watermelon peel slurry；
（3）Extract：100g watermelon peel slurries are taken, adds the polyphosphate sodium of 500ml0.4% to extract solution, carry out the extraction of pectin, microwave power 400W is processed 15 minutes, and filtering obtains extract solution；
（4）Decolourize：Will in extract solution add 5g activated carbons, 100rpm stirring, heating water bath to 70 DEG C decolourize 40 minutes, filtering, be concentrated under reduced pressure into the 1/5 of extracting liquid volume；
（5）Dry：1.0 times of 95% ethanol of weight are added in concentrate, 30 minutes are stood, suction filtration, precipitation is washed 3 times with 75% ethanol, and centrifugation, the sediment that will be centrifugally separating to obtain is dried under the conditions of 50~60 DEG C, obtains solid pectin 3.58g.
Embodiment 2
A kind of new method that pectin is extracted from watermelon peel, step is as follows：
（1）Sorting：After selection and withdrawal fruit juice it is fresh without rotten watermelon peel be raw material；
（2）Go out enzyme：
By selected by step (1) it is fresh without rotten watermelon peel raw material clear water rinsing for several times, remove soluble impurity；Then shred, be placed in stainless steel reaction pot, it is 80~90 DEG C of hot water to add 2~4 times of watermelon peel quality, temperature, soaks 20~30min, with the enzyme being passivated in watermelon peel contained by itself, it is lost activity, prevent its decomposition to pectin；Obtain watermelon peel slurry；
（3）Extract：100g watermelon peel slurries are taken, adds the polyphosphate sodium of 300ml 1.0% to extract solution, carry out the extraction of pectin, microwave power 600W is processed 5 minutes, and filtering obtains extract solution；
(4) decolourize：Will in extract solution add 5g activated carbons, 100rpm stirring, heating water bath to 80 DEG C decolourize 30 minutes, filtering, be concentrated under reduced pressure into the 1/5 of extracting liquid volume；
（5）Dry：2.0 times of 95% ethanol of weight are added in concentrate, 10 minutes are stood, suction filtration, precipitation is washed 2 times with 75% ethanol, and centrifugation, the sediment that will be centrifugally separating to obtain is dried under the conditions of 50~60 DEG C, obtains solid pectin 3.62g.
Embodiment 3
A kind of new method that pectin is extracted from watermelon peel, step is as follows：
（1）Sorting：After selection and withdrawal fruit juice it is fresh without rotten watermelon peel be raw material；
（2）Go out enzyme：
By selected by step (1) it is fresh without rotten watermelon peel raw material clear water rinsing for several times, remove soluble impurity；Then shred, be placed in stainless steel reaction pot, it is 80~90 DEG C of hot water to add 2~4 times of watermelon peel quality, temperature, soaks 20~30min, with the enzyme being passivated in watermelon peel contained by itself, it is lost activity, prevent its decomposition to pectin；Obtain watermelon peel slurry；
（3）Extract：100g watermelon peel slurries are taken, adds the polyphosphate sodium of 400ml0.7% to extract solution, carry out the extraction of pectin, microwave power 500W is processed 10 minutes, and filtering obtains extract solution；
(4) decolourize：Will in extract solution add 5g activated carbons, 100rpm stirring, heating water bath to 75 DEG C decolourize 35 minutes, filtering, be concentrated under reduced pressure into the 1/5 of extracting liquid volume；
（5）Dry：1.5 times of 95% ethanol of weight are added in concentrate, 20 minutes are stood, suction filtration, precipitation is washed 3 times with 75% ethanol, and centrifugation, the sediment that will be centrifugally separating to obtain is dried under the conditions of 50~60 DEG C, obtains solid pectin 3.85g.
Claims (1)
1. it is a kind of from watermelon peel extract pectin new method, it is characterised in that methods described comprises the following steps：
（1）Sorting：The fresh watermelon peel without corruption after selection and withdrawal fruit juice is raw material；
（2）Go out enzyme：By selected by step (1) it is fresh without rotten watermelon peel raw material clear water rinsing for several times, remove soluble impurity；Then shred, be placed in stainless steel reaction pot, it is 80~90 DEG C of hot water to add 2~4 times of watermelon peel quality, temperature, soaks 20~30min, with the enzyme being passivated in watermelon peel contained by itself, it is lost activity, prevent its decomposition to pectin；Obtain watermelon peel slurry；
（3）Extract：In above-mentioned watermelon peel slurry, by solid-liquid ratio（g/ml）Add the 0.4~1.0% of 3~5 times polyphosphate sodium to extract solution, carry out the extraction of pectin, 400~600W of microwave power is processed 5~15 minutes, filtering obtains extract solution；
(4) decolourize：Activated carbon decolorizing will be added in extract solution, activated carbon is 1g with the mass volume ratio of solution:100rpm treatment 30-40min under the conditions of 100-150mL, 70-80 DEG C, filtering, filtrate decompression is concentrated into the 1/5 of original volume；
（5）Dry：Take step（4）Obtained concentrate, adds 1.0~2.0 times of 95% ethanol of weight, stands 10~30 minutes, and suction filtration, precipitation is washed several times with 75% ethanol, and centrifugation, the sediment that will be centrifugally separating to obtain is dried under the conditions of 50~60 DEG C, i.e. finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510942523.2A CN106883316A (en) | 2015-12-16 | 2015-12-16 | A kind of new method that pectin is extracted from watermelon peel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510942523.2A CN106883316A (en) | 2015-12-16 | 2015-12-16 | A kind of new method that pectin is extracted from watermelon peel |
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| Publication Number | Publication Date |
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| CN106883316A true CN106883316A (en) | 2017-06-23 |
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| CN201510942523.2A Pending CN106883316A (en) | 2015-12-16 | 2015-12-16 | A kind of new method that pectin is extracted from watermelon peel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504230A (en) * | 2021-04-20 | 2021-10-15 | 甘肃农业大学 | pH sensing colorimetric film for indicating freshness of chilled fresh meat and preparation method and application thereof |
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2015
- 2015-12-16 CN CN201510942523.2A patent/CN106883316A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504230A (en) * | 2021-04-20 | 2021-10-15 | 甘肃农业大学 | pH sensing colorimetric film for indicating freshness of chilled fresh meat and preparation method and application thereof |
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