CN102926287A - Preparation method for chitosan fruit moistureproof freshness protection package - Google Patents
Preparation method for chitosan fruit moistureproof freshness protection package Download PDFInfo
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- CN102926287A CN102926287A CN2012104792602A CN201210479260A CN102926287A CN 102926287 A CN102926287 A CN 102926287A CN 2012104792602 A CN2012104792602 A CN 2012104792602A CN 201210479260 A CN201210479260 A CN 201210479260A CN 102926287 A CN102926287 A CN 102926287A
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Abstract
The invention discloses a preparation method for a chitosan fruit moistureproof freshness protection package, which comprises the following steps; firstly, performing pulping, beating, refining, preparing and size mixing on wood pulp and/or straw pulp and manufacturing with pulp to obtain paper through a paper machine; secondly, preparing waterproof emulsion; thirdly, coating the waterproof emulsion on the surface of wood pulp paper and obtaining fruit bagging paper with a waterproof layer through baking processing; fourthly, spraying a chitosan liquid on the inner surface of the fruit bagging paper with the waterproof layer and drying to obtain the paper; and fifthly, cutting the paper into an appropriate size and manufacturing to obtain a paper package. According to the invention, the manufactured product has the advantages of collision resistance, moisture protection, bacterium resistance and freshness retaining, overcomes the defects that the chitosan has poor water-solubility, is difficult in production operation, influences the flavor of fruits and vegetables and is difficult to dry, and is suitable for application to various fruits.
Description
Technical field
The present invention is specifically related to a kind of preparation method of chitosan fruit damp-proofing and fresh-keeping bag.
Background technology
Shitosan (chitosan) is to be obtained through deacetylation by the chitin (chitin) that nature extensively exists, chemical name is Chitosan (1-4)-2-amino-B-D glucose, from 1859, after Frenchman Rouget at first obtains shitosan, biological functionality and the compatibility of this natural polymer, blood compatibility, security, the premium properties such as microbic resolvability are by all trades and professions extensive concern, at medicine, food, chemical industry, cosmetics, water treatment, METAL EXTRACTION and recovery, the application study of the numerous areas such as biochemistry and biomedical engineering has obtained major progress.
Shitosan has advantages of following as fruit and vegetable fresh-keeping agent: 1) have the good gas property selected, but limits product and extraneous O
2And CO
2Gas exchange, the inner CO of film
2Concentration is high, the fruits and vegetables respiratory intensity is descended and the acetate releasing quantity minimizing.2) and can stop moisture evaporation; 3) negative electrical charge on positive charge and the bacterial cell membrane interacts, and bacterial cell endoproteinase and other compositions are leaked.4) optionally chelating affects microbial growth and produces toxin the metal ion that growth of microorganism plays a crucial role.5) can effectively reduce the activity of PPO, POD, suppress brown stain.
Yet shitosan as antistaling agent have still that cost is high, poorly water-soluble, single result of use is poor, production exercise is felt embarrassed shortcoming.Per 500 g of food-grade shitosan are 75～95 yuan, and the fruit of smearing 500 g needs the shitosan of at least 1 g, needs about 0.5 yuan.Poorly water-soluble, majority has limited its effect take acid as solvent, affects fruit-vegetable flavor, and is difficult to drying.The fruits and vegetables of different cultivars, its character is different with attribute, and the same prescription can't make various fruits and vegetables all reach best fresh-keeping effect, production that therefore can't be a large amount of.Above-mentioned shortcoming has hindered the application of shitosan fresh-keeping packaging.
Summary of the invention
The present invention is directed to the prior art deficiency, provide a kind of cost with damp-proofing and fresh-keeping effect low, the preparation method of mass producible fruit vegetables freshness protection package.
Technical solution of the present invention is specific as follows:
A kind of preparation method of chitosan fruit damp-proofing and fresh-keeping bag comprises the steps:
(1) with wood pulp and/or straw pulp through pulping, making beating, refining, with slurry, size mixing after through the paper machine paper of manufacturing paper with pulp to get;
(2) preparation watertight composition emulsion;
(3) water-proof emulsion is coated to the wood pulp paper surface, through preliminary drying, bake processing and namely get fruit bag paper with watertight composition;
(4) will with the upper chitosan solution of fruit bag paper inner surface spraying of watertight composition, dry and get final product;
(5) paper cutting is become suitable dimension, make paper bag.
The preferred paraffin of described watertight composition emulsion or organosilicon.
But preparation method's application reference of organic silicon emulsion number is CN201210053404.8, and name is called " a kind of organosilicon paper waterproof treatment agent and using method thereof " disclosed technology and prepares.
Paraffin wax emulsions is made by following steps among the preparation method of above-mentioned damp-proofing and fresh-keeping bag: paraffin, tristerin are put into first the flask heat fused, pour in three mouthfuls of reaction bulbs, start stirring, be warming up to the 90-95 degree, add EM emulsifying agent, oleic acid, drip the KOH aqueous solution, when KOH adds, mixing speed is improved, temperature keeps the 80-90 degree, begin to drip hot water, the emulsion denseness is thinning immediately, in the water adding bottle with ormal weight, insulation, high-speed stirred 30min, cooling obtains the paraffin water-proof emulsion.
Above-mentioned chitosan solution concentration is 1-100mg/ml.
The preparation method of above-mentioned damp-proofing and fresh-keeping bag also can increase the hot pressing of anticollision lamina reticularis or gluing step on watertight composition afterwards in step (4).
Above-mentioned anticollision lamina reticularis is the PE lamina reticularis.
The freshness protection package that the inventive method makes is that 3 layers of composite are made, and is followed successively by from outside to inside watertight composition, paper fibrage and fresh-keeping layer.Above-mentioned watertight composition can prevent that fruit chance tide from rotting to go mouldy, and the paper fibrage is that pulpwood is made, and is the basal layer of fruit bag, and fresh-keeping layer is the shitosan layer, has the anti-bacterial refreshing effect.
The inventive method can also make the shitosan Fruit and vegetable preserving bag that outermost layer increases the anticollision lamina reticularis, and preferred PE lamina reticularis prevents that fruit is damaged in the transportation.
The product that technical solution of the present invention makes has anti-damage, and the advantage of moistureproof and anti-bacterial refreshing has overcome the shitosan poorly water-soluble, fruit-vegetable flavor is felt embarrassed, affect in production exercise, and is difficult to dry shortcoming, suitable various fruits use.
Concrete mode
Employed term except as otherwise noted, generally has the implication that those of ordinary skills understand usually in the present invention.
Below in conjunction with specific embodiment and comparable data the present invention is described in further detail.Should be understood that these embodiment just in order to demonstrate the invention, but not limit the scope of the invention by any way.
In following examples, various processes and the method do not described in detail are conventional methods as known in the art.
Embodiment 1
1) paraffin 25g, tristerin 10g are put into first the flask heat fused, pour in three mouthfuls of reaction bulbs, start stirring, be warming up to the 90-95 degree, add 5gEM emulsifying agent, 3g oleic acid, drip the KOH aqueous solution.Emulsion, is improved mixing speed when KOH adds by rare beginning retrogradation at this moment, and temperature keeps the 80-90 degree, begins to drip hot water, and the emulsion denseness is thinning immediately, in the water adding bottle with ormal weight, be incubated, and high-speed stirred 30min, cooling obtains the paraffin water-proof emulsion;
2) the paraffin water-proof emulsion is coated to the wood pulp paper surface, through preliminary drying, bake (130-150 degree) and process the fruit bag paper namely get with watertight composition;
3) will be the chitosan solution of 50mg/ml with the upper concentration of fruit bag paper inner surface spraying of watertight composition, and dry and get final product;
4) paper cutting is become suitable dimension, make paper bag;
5) fruit is inserted in paper bag, sack is twisted with the fingers and is tightly got final product.
Embodiment 2
1) with the fully dissolving in water of 10g zinc acetate, add the hydrogeneous poly-silicic acid emulsion of 40g methyl and 15g cationic hydroxy polysiloxane microemulsion, thin up gets organic silicon emulsion to effective content 2%;
2) get wood pulp paper and immerse organic silicon emulsion immersion 20 minutes, drain away the water, the oven dry of 70-90 degree;
3) will be the chitosan solution of 1mg/ml with the upper concentration of fruit bag paper inner surface spraying of watertight composition, and dry and get final product;
4) paper cutting is become suitable dimension, make paper bag;
5) fruit is inserted in paper bag, sack is twisted with the fingers and is tightly got final product.
Embodiment 3
According to the fruit bag paper with watertight composition that embodiment 1 method makes, be the chitosan solution of 100mg/ml with the upper concentration of its inner surface spraying, dry and get final product.With the bagging paper of shitosan layer, the watertight composition one side is glued together with the PE net, paper cutting is become suitable dimension, make paper bag.Fruit is inserted in paper bag, and sack is twisted with the fingers and is tightly got final product.
Claims (6)
1. the preparation method of a chitosan fruit damp-proofing and fresh-keeping bag comprises the steps:
(1) with wood pulp and/or straw pulp through pulping, making beating, refining, with slurry, size mixing after through the paper machine paper of manufacturing paper with pulp to get;
(2) preparation watertight composition emulsion;
(3) water-proof emulsion is coated to the wood pulp paper surface, namely gets fruit bag paper with watertight composition through baking processing;
(4) will with the upper chitosan solution of fruit bag paper inner surface spraying of watertight composition, dry and get final product;
(5) paper cutting is become suitable dimension, make paper bag.
2. the preparation method of damp-proofing and fresh-keeping bag as claimed in claim 1 is characterized in that the watertight composition emulsion is paraffin or organosilicon.
3. the preparation method of described damp-proofing and fresh-keeping bag as claimed in claim 2, it is characterized in that described paraffin wax emulsions is made by following steps: paraffin, tristerin are put into first the flask heat fused, pour in three mouthfuls of reaction bulbs, start stirring, be warming up to the 90-95 degree, add EM emulsifying agent, oleic acid, drip the KOH aqueous solution, when KOH adds, mixing speed is improved, and temperature keeps the 80-90 degree, begins to drip hot water, the emulsion denseness is thinning immediately, the water of ormal weight is added in the bottle insulation, high-speed stirred 30min, cooling obtains the paraffin water-proof emulsion.
4. the preparation method of damp-proofing and fresh-keeping bag as claimed in claim 1 is characterized in that described chitosan solution concentration is 1-100mg/ml.
5. the preparation method of damp-proofing and fresh-keeping bag as claimed in claim 1 is characterized in that increasing afterwards the hot pressing of anticollision lamina reticularis or gluing step on watertight composition in step (4).
6. the preparation method of damp-proofing and fresh-keeping bag as claimed in claim 5 is characterized in that described anticollision lamina reticularis is the PE lamina reticularis.
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|---|---|---|---|
| CN2012104792602A CN102926287A (en) | 2012-11-23 | 2012-11-23 | Preparation method for chitosan fruit moistureproof freshness protection package |
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|---|---|---|---|
| CN2012104792602A CN102926287A (en) | 2012-11-23 | 2012-11-23 | Preparation method for chitosan fruit moistureproof freshness protection package |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103493702A (en) * | 2013-09-02 | 2014-01-08 | 宁波大学 | Antibacterial fresh-keeping juicy peach growth bag and manufacturing method thereof |
| CN103625770A (en) * | 2013-12-11 | 2014-03-12 | 河北省农林科学院遗传生理研究所 | Preparation of preservative paper for apples and pears and using method of preservative paper |
| CN104313947A (en) * | 2014-10-22 | 2015-01-28 | 浙江华川实业集团有限公司 | Preparation method of breathable and waterproof fruit cultivating bag paper |
| CN104365418A (en) * | 2014-11-19 | 2015-02-25 | 成都红柿子科技有限公司 | Grape protection bag with antibacterial function |
| CN105544302A (en) * | 2015-12-03 | 2016-05-04 | 华南理工大学 | Preparation method and application of chitosan/hydroxypropyl cellulose composite antibacterial paper |
| CN105568751A (en) * | 2015-12-25 | 2016-05-11 | 镇江大东纸业有限公司 | Production method of raw paper of fruit fresh-keeping paper |
| CN105735046A (en) * | 2016-02-01 | 2016-07-06 | 浙江华川实业集团有限公司 | Traditional Chinese medicine antibacterial anticorrosion fruit bagging paper and preparing method thereof |
| CN106168004A (en) * | 2016-08-29 | 2016-11-30 | 董晓 | A kind of preparation method of medical packing paper Cypres |
| CN107675552A (en) * | 2017-10-24 | 2018-02-09 | 苏州丰倍生物科技有限公司 | A kind of plant type paper products water and oil repellent agent capable of washing and preparation method thereof |
| CN109208374A (en) * | 2018-08-31 | 2019-01-15 | 王成 | A kind of preparation method of the antibacterial ox-hide paper packing material of waterproof |
| CN111497334A (en) * | 2020-04-24 | 2020-08-07 | 贵阳学院 | A bagging technology for preventing and controlling fruit diseases and insect pests |
| CN118273162A (en) * | 2024-06-04 | 2024-07-02 | 湖南大道新材料有限公司 | Recyclable paper bag and preparation method and application thereof |
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| JPS54106611A (en) * | 1978-02-10 | 1979-08-21 | Shibataya Kakoshi Kk | Production of fruit bag and paper for fruit bag |
| CN86102129A (en) * | 1986-04-01 | 1987-02-11 | 河南省科学院化学研究所 | Novel high stability paraffin wax emulsions |
| US6092329A (en) * | 1998-11-02 | 2000-07-25 | Arkay International Incorporated | Protective fruit group growing bag |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103493702B (en) * | 2013-09-02 | 2015-07-15 | 宁波大学 | Antibacterial fresh-keeping juicy peach growth bag and manufacturing method thereof |
| CN103493702A (en) * | 2013-09-02 | 2014-01-08 | 宁波大学 | Antibacterial fresh-keeping juicy peach growth bag and manufacturing method thereof |
| CN103625770A (en) * | 2013-12-11 | 2014-03-12 | 河北省农林科学院遗传生理研究所 | Preparation of preservative paper for apples and pears and using method of preservative paper |
| CN104313947B (en) * | 2014-10-22 | 2016-08-24 | 浙江华川实业集团有限公司 | A kind of preparation method of air permeable waterproof fruit-nourishing sleeve bag paper |
| CN104313947A (en) * | 2014-10-22 | 2015-01-28 | 浙江华川实业集团有限公司 | Preparation method of breathable and waterproof fruit cultivating bag paper |
| CN104365418A (en) * | 2014-11-19 | 2015-02-25 | 成都红柿子科技有限公司 | Grape protection bag with antibacterial function |
| CN105544302A (en) * | 2015-12-03 | 2016-05-04 | 华南理工大学 | Preparation method and application of chitosan/hydroxypropyl cellulose composite antibacterial paper |
| CN105568751A (en) * | 2015-12-25 | 2016-05-11 | 镇江大东纸业有限公司 | Production method of raw paper of fruit fresh-keeping paper |
| CN105735046A (en) * | 2016-02-01 | 2016-07-06 | 浙江华川实业集团有限公司 | Traditional Chinese medicine antibacterial anticorrosion fruit bagging paper and preparing method thereof |
| CN106168004A (en) * | 2016-08-29 | 2016-11-30 | 董晓 | A kind of preparation method of medical packing paper Cypres |
| CN106168004B (en) * | 2016-08-29 | 2017-12-05 | 郑燕梅 | A kind of preparation method of medical packing paper Cypres |
| CN107675552A (en) * | 2017-10-24 | 2018-02-09 | 苏州丰倍生物科技有限公司 | A kind of plant type paper products water and oil repellent agent capable of washing and preparation method thereof |
| CN109208374A (en) * | 2018-08-31 | 2019-01-15 | 王成 | A kind of preparation method of the antibacterial ox-hide paper packing material of waterproof |
| CN111497334A (en) * | 2020-04-24 | 2020-08-07 | 贵阳学院 | A bagging technology for preventing and controlling fruit diseases and insect pests |
| CN111497334B (en) * | 2020-04-24 | 2022-06-03 | 贵阳学院 | Bagging technology for preventing and treating fruit diseases and insect pests |
| CN118273162A (en) * | 2024-06-04 | 2024-07-02 | 湖南大道新材料有限公司 | Recyclable paper bag and preparation method and application thereof |
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Application publication date: 20130213 |