CN104782753A - Preparation method of special efficient sustained-release cold storage agent for supporting fruit and vegetable storage and transportation - Google Patents
Preparation method of special efficient sustained-release cold storage agent for supporting fruit and vegetable storage and transportation Download PDFInfo
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- CN104782753A CN104782753A CN201510162326.9A CN201510162326A CN104782753A CN 104782753 A CN104782753 A CN 104782753A CN 201510162326 A CN201510162326 A CN 201510162326A CN 104782753 A CN104782753 A CN 104782753A
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Abstract
A preparation method of a special efficient sustained-release cold storage agent for supporting fruit and vegetable storage and transportation comprises steps as follows: three raw materials including cyclodextrin, glycerine and sodium polyacrylate are prepared in percentage by weight; under the condition of the room temperature, cyclodextrin is added to water and is stirred until cyclodextrin is sufficiently dissolved to obtain a transparent liquid, and then glycerine is slowly added and stirred until glycerine is sufficiently dissolved; sodium polyacrylate is finally added and stirred until polyacrylate is sufficiently dissolved to obtain a colloidal liquid, and the cold storage agent is obtained; the prepared cold storage agent is packaged. The cold storage agent prepared with the method is non-toxic, odorless, safe and environment-friendly, has a remarkable refrigeration effect, can be recycled, cannot shrink, and cannot produce deionized water; the preparation process does not require heating, and the operation method is simple and feasible; the sustained-release cold storage agent can be recycled, has low cost and good effect, is applicable to large-scale production and facilitates popularization.
Description
Technical field
The invention belongs to cool storage material technology for producing field, particularly relate to the preparation method of a kind of fruit and vegetable storage and transportation supporting special efficient slowly-releasing agent for storage of coldness.
Background technology
The output of China's fruits and vegetables is increased to more than 900,000,000 ton of 2013 by more than 600,000,000 ton in 2007, considerably beyond grain yield, become the first agricultural products of China, its volume of production and marketing accounts for more than 50% of world market proportion.However, the overall modernization level of China's fruits and vegetables industry is on the low side, cropping pattern is still the peasant household that disperses or contract entered into by an individual is master, and the place of production collecting and distributing circulation transit link is many, the transport of effective refrigerator car, controlled atmosphere car because energy consumption is high, investment large not easily accept by peasant household.And harvest time high temperature and temperature fluctuation is comparatively large to the qualitative effects of fruits and vegetables in transit, cause postharvest fruit and vegetable rotting rate up to 10-30%, annual loss reaches more than 1,000 hundred million yuan.Not only have influence on the domestic market sales of China's fruit and vegetable food, also directly restrict the lifting of China's fruits and vegetables industry competitiveness in the international market simultaneously.Therefore, need exploitation badly a kind of cheap, convenient, applicable, meet the supporting logistic facilities of low temperature of current China's national situation.
Summary of the invention
The present invention, in order to solve weak point of the prior art, provides a kind of cold accumulation effects good and overcomes the preparation method that the fruit and vegetable storage and transportation of surfusion supporting special efficient slowly-releasing agent for storage of coldness easily appears in traditional inorganic salts lastingly, simultaneously.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: the preparation method of fruit and vegetable storage and transportation supporting special efficient slowly-releasing agent for storage of coldness, comprises following step:
(A) prepare cyclodextrin, glycerine and Sodium Polyacrylate three kinds of raw materials according to percentage by weight, cyclodextrin is 0.8-1.0%, and glycerine is 10-15%, and Sodium Polyacrylate is 0.5%-1.5%, and surplus is deionized water;
(B) at ambient temperature, be added to the water cyclodextrin stirring, obtains transparency liquid after fully dissolving,
(C) then slowly add glycerine, and be stirred to abundant dissolving;
(D) finally add Sodium Polyacrylate, be stirred to after fully dissolving, obtain colloidal liquid, obtain described agent for storage of coldness;
(E) agent for storage of coldness of preparation is carried out packaging process.
Described Sodium Polyacrylate is white granular, and granular size is 30-50 order.
Adopt technique scheme.The present invention makes full use of circulus and the inclusion technique principle of cyclodextrin " outer hydrophilic, interior hydrophobic ", strong hygroscopic glycerine and macromolecular material Sodium Polyacrylate is mixed at normal temperatures filling i.e. this agent for storage of coldness obtained after hemicolloid.This agent for storage of coldness has stronger water-holding capacity and the low heat of transformation, agent for storage of coldness after freezing is sustainable in homemade fruits and vegetables Special fresh-keeping box under normal temperature lets cool 15 hours, not only cold accumulation effects is good and lasting, overcomes traditional inorganic salts simultaneously and easily occurs surfusion.Through measuring, agent for storage of coldness phase transition temperature of the present invention is ﹣ 1 DEG C-0.5 DEG C, and latent heat of phase change is 305-345KJ/Kg.
The applicant combines Chinese toon vegetables normal temperature turnover preservation device (ZL201320575654.8) developed, develop the fruit and vegetable storage and transportation high-efficiency sustained-release agent for storage of coldness that a kind of and above-mentioned patent is supporting, to reducing the loss late of fruits and vegetables in transporting procedures, keep postharvest fruit and vegetable quality, improve domestic low temperature logistics delivery chain.
The agent for storage of coldness that the present invention prepares is nonpoisonous and tasteless, safety and environmental protection, and refrigeration is obvious, repeatedly can use, not shrink, not produce Separation of Water.
Manufacturing process of the present invention is simple without the need to heating, method of operating; The present invention can Reusability, and cost is low, effective, is applicable to large-scale production, is convenient to promote.
Accompanying drawing explanation
Fig. 1 is the ice-making process T-t curve of the composite phase-change agent for storage of coldness that the embodiment of the present invention one prepares;
Fig. 2 is the ice-making process T-t curve of the composite phase-change agent for storage of coldness that the embodiment of the present invention two prepares.
Detailed description of the invention
Embodiment one: in the present embodiment, fruit and vegetable storage and transportation supporting special efficient slowly-releasing agent for storage of coldness, according to weight percent meter, comprises cyclodextrin 0.8%, glycerine 10%, Sodium Polyacrylate 1.5%, deionized water 87.7%.
The preparation method of described agent for storage of coldness, is characterized in that, comprises following step:
(A) get out cyclodextrin according to required ratio, glycerine, Sodium Polyacrylate and deionized water for subsequent use;
(B) at ambient temperature, cyclodextrin is added to the water and fully stirs, obtain clear gum solution;
(C) at ambient temperature, slowly add glycerine in the cyclodextrin aqueous solution obtained in step (B), stir rear for subsequent use;
(D) adding Sodium Polyacrylate slowly by also stirring to slow down in step (C), obtaining colloidal liquid to stirring, obtaining described agent for storage of coldness, after packaging, obtaining agent for storage of coldness finished product.
1) preparation method of the present invention is simple, and cost is lower, can suitability for industrialized production;
2) this agent for storage of coldness is nontoxic, tasteless, can be applicable to food fresh keeping;
3) found through experiments, the latent heat of phase change of the implementation case is 345KJ/Kg, and phase transition temperature is ﹣ 1 DEG C.Its ice-making process curve is shown in figure .1.
Embodiment two: in this enforcement, fruit and vegetable storage and transportation supporting special efficient slowly-releasing agent for storage of coldness, according to weight percent meter, comprises cyclodextrin 1.0%, glycerine 15.0%, Sodium Polyacrylate 0.5%, deionized water 83.5%.
The preparation method of described agent for storage of coldness, comprises following step:
(A) get out cyclodextrin according to required ratio, glycerine, Sodium Polyacrylate and deionized water for subsequent use;
(B) at ambient temperature, cyclodextrin is added to the water and fully stirs, obtain transparent aqueous solution;
(C) at ambient temperature, slowly add glycerine in the cyclodextrin aqueous solution obtained in step (B), stir rear for subsequent use;
(D) adding Sodium Polyacrylate slowly by also stirring to slow down in step (C), obtaining colloidal liquid to stirring, obtaining described agent for storage of coldness, after packaging, obtaining agent for storage of coldness finished product.
1) preparation method of the present invention is simple, and cost is lower, can suitability for industrialized production;
2) this agent for storage of coldness is nontoxic, tasteless, can be applicable to food fresh keeping;
3) found through experiments, latent heat of phase change of the present invention is 305KJ/Kg, and phase transition temperature is 0.5 DEG C, and its ice-making process curve is shown in figure .2.
Compared with traditional cold chain transportation, the present invention does not need freezer car, and only in independent packing case, put into packed agent for storage of coldness can reach cooling fresh-keeping effect, and the present invention uses in the fresh-keeping test of Chinese toon tender shoots, can make the temperature inside the box in 24h, maintain less than 15 DEG C, keep Chinese toon quality of sprout.
The present embodiment not does any pro forma restriction to shape of the present invention, material, structure etc.; every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all belong to the protection domain of technical solution of the present invention.
Claims (2)
1. the preparation method of fruit and vegetable storage and transportation supporting special efficient slowly-releasing agent for storage of coldness, is characterized in that: comprise following step:
(A) prepare cyclodextrin, glycerine and Sodium Polyacrylate three kinds of raw materials according to percentage by weight, cyclodextrin is 0.8-1.0%, and glycerine is 10-15%, and Sodium Polyacrylate is 0.5%-1.5%, and surplus is deionized water;
(B) at ambient temperature, be added to the water cyclodextrin stirring, obtains transparency liquid after fully dissolving,
(C) then slowly add glycerine, and be stirred to abundant dissolving;
(D) finally add Sodium Polyacrylate, be stirred to after fully dissolving, obtain colloidal liquid, obtain described agent for storage of coldness;
(E) agent for storage of coldness of preparation is carried out packaging process.
2. the preparation method of fruit and vegetable storage and transportation according to claim 1 supporting special efficient slowly-releasing agent for storage of coldness, is characterized in that: described Sodium Polyacrylate is white granular, and granular size is 30-50 order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510162326.9A CN104782753B (en) | 2015-04-08 | 2015-04-08 | The preparation method of the mating special efficient sustained release cold-storage material of fruit and vegetable storage and transportation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510162326.9A CN104782753B (en) | 2015-04-08 | 2015-04-08 | The preparation method of the mating special efficient sustained release cold-storage material of fruit and vegetable storage and transportation |
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| CN104782753A true CN104782753A (en) | 2015-07-22 |
| CN104782753B CN104782753B (en) | 2018-06-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106188637A (en) * | 2016-07-15 | 2016-12-07 | 广州市龙誉医药科技有限公司 | A kind of medical wink cold cooling ice bag |
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| CN103194178A (en) * | 2013-03-28 | 2013-07-10 | 大连工业大学 | Brown beech mushroom refrigeration cold-insulation agent and preparation method thereof |
| CN103242806A (en) * | 2013-05-08 | 2013-08-14 | 杭州鲁尔能源科技有限公司 | Inorganic salt phase-change cold accumulation material |
| CN103571439A (en) * | 2013-10-15 | 2014-02-12 | 昆山威胜干燥剂研发中心有限公司 | Cold-storage agent and preparation method thereof |
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2015
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030067280A (en) * | 2002-02-07 | 2003-08-14 | 김문재 | A Liquid Refrigerant for preserve foodstuff and sterilize cooking tools |
| CN1493644A (en) * | 2003-09-09 | 2004-05-05 | 上海市印染技术研究所 | Environmental protection type cool storage medium |
| CN1907045A (en) * | 2006-07-24 | 2007-02-07 | 海通食品集团股份有限公司 | Method for elevating vitrification transformation temperature of fruit and vegetable integral quick-freeze and quick-freeze method |
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| CN103194178A (en) * | 2013-03-28 | 2013-07-10 | 大连工业大学 | Brown beech mushroom refrigeration cold-insulation agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106188637A (en) * | 2016-07-15 | 2016-12-07 | 广州市龙誉医药科技有限公司 | A kind of medical wink cold cooling ice bag |
| CN106188637B (en) * | 2016-07-15 | 2018-10-12 | 广州市龙誉医药科技有限公司 | A kind of cold cooling ice bag of medical wink |
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| CN104782753B (en) | 2018-06-01 |
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