1-methylcyclopropylene sustained release adhesive and preparation and applications thereof

A technology of methylcyclopropene and slow-release glue, applied in the application, protecting fruits/vegetables, food ingredients, etc. with a protective layer, can solve the problem of reducing the use efficiency of 1-methylcyclopropene, increasing the workload and cost, Complex preparation process and other problems, to achieve the effect of green and non-toxic raw materials, labor saving, and simple preparation process

Inactive Publication Date: 2019-03-29
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the microencapsulation preparation process of 1-methylcyclopropene is complicated, and a small space needs to be set in the packaging box to place 1-methylcyclopropene microcapsules during use, which increases the workload and cost; and direct use will reduce the 1-methylcyclopropene. Efficiency in the use of methylcyclopropene, short shelf life

Method used

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  • 1-methylcyclopropylene sustained release adhesive and preparation and applications thereof

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Embodiment 1

[0035] This embodiment provides a 1-methylcyclopropene slow-release adhesive and a preparation method thereof.

[0036] (1) dissolving gelatin in 100ml deionized water to obtain a gelatin solution with a mass fraction of 3wt.%, cooling in an ice bath, controlling the temperature of the solution to be 1 to 4°C, adding 1-methylcyclocycline equivalent to 20% by weight of gelatin Propylene was stirred at 800rpm for 0.5h to form a homogeneous suspension, ground, stood still for 6h, filtered with suction to obtain a precipitate, washed with water to obtain 1-methylcyclopropene clathrate, and stored at 4°C for later use.

[0037] (2) Dissolve 6g sodium carboxymethylcellulose, 5g chitosan quaternary ammonium salt and 12g starch in 65ml deionized water, add 1-methylcyclopropene clathrate and 7g propylene glycol prepared by 5g step (1) successively , stirred at 1000rpm for 1.5h to obtain a uniform viscous jelly, which is the 1-methylcyclopropene slow-release adhesive, and stored at 4°C....

Embodiment 2

[0039] This embodiment provides a 1-methylcyclopropene slow-release adhesive and a preparation method thereof.

[0040] (1) Dissolve β-cyclodextrin in 100ml of deionized water to obtain a β-cyclodextrin solution with a mass fraction of 8wt.%, cool in an ice bath, control the temperature of the solution at 1-4°C, and add the equivalent of β-cyclodextrin 1-methylcyclopropene with 30% weight of cyclodextrin, stirred at 800rpm for 0.5h to form a uniform suspension, ground, stood still for 12h, filtered with suction to obtain precipitate, washed with water to obtain 1-methylcyclopropene clathrate were stored at 4°C for later use.

[0041] (2) 12g sodium carboxymethylcellulose, 10g chitosan quaternary ammonium salt and 12g carboxymethylcellulose are dissolved in 25ml deionized water, and 1-methylcyclopropene prepared by 15g step (1) is added successively for clathrate material and 14g of aloe vera juice, stirred at 1000rpm for 1.5h to obtain a uniform viscous jelly, which is the 1-...

Embodiment 3

[0043] This embodiment provides a 1-methylcyclopropene slow-release adhesive and a preparation method thereof.

[0044] (1) Dissolve polyacrylamide in 100ml deionized water to obtain a polyacrylamide solution with a mass fraction of 5wt.%, cool in an ice bath, control the temperature of the solution at 1-4°C, and add 25% polyacrylamide equivalent to the weight of polyacrylamide 1-methylcyclopropene, stirred at 800rpm for 0.5h to form a uniform suspension, ground, stood still for 9h, filtered with suction to obtain a precipitate, washed with water to obtain 1-methylcyclopropene clathrate, at 4°C Save for later.

[0045] (2) Dissolve 9g sodium carboxymethylcellulose, 7.5g chitosan quaternary ammonium salt, 8g rosin and 10g peach gum in 45ml deionized water, and add 10g of 1-methylcyclopropene package prepared in step (1) successively Compound and 10.5g glycerol, stirred at 1000rpm for 1.5h to obtain a uniform viscous jelly, which is the 1-methylcyclopropene slow-release adhesiv...

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Abstract

The invention belongs to the technical field of sustained release adhesive preparation, and specifically relates to a 1-methylcyclopropylene sustained release adhesive and a preparation method and applications thereof. The sustained release adhesive comprises following raw materials: 1-mehtylcyclopropylene, an auxiliary material, sodium carboxymethyl cellulose, chitosan quaternary ammonium salt, an adhesive, a slip agent, and water. Due to the 1-methylcyclopropylene wrapped by a polymer with a net structure, the adhesive, and the slip agent, a dual sustained release effect is realized, the sustained release time is long, and the fresh keeping effect can last 15 to 20 days. The preparation technology of the sustained release adhesive is simple, the cost is low, and the raw materials are green, nontoxic, and environmentally friendly. When the adhesive is applied to fresh keeping of vegetables and fruits, the using method is very simple, the adhesive is painted on the inner surface of a packing case to keep the freshness of fruits and vegetables, no effective space is occupied, and labor is saved. After use, fruits and vegetables are soaked and washed by warm water to rapidly remove the adhesive.

Description

technical field [0001] The invention belongs to the technical field of preparation of slow-release adhesives, in particular to a 1-methylcyclopropene slow-release adhesive and its preparation method and application. Background technique [0002] 1-Methylcyclopropene is a good ethylene receptor inhibitor, which can combine with ethylene receptors to prolong the ripening and senescence cycle of fresh fruits and vegetables to achieve the effect of freshness preservation. However, since 1-methylcyclopropene is a solid below 10 °C, its application is limited. Currently, the methods of use on the market include microencapsulation of 1-methylcyclopropene, or direct use. Among them, the microencapsulation preparation process of 1-methylcyclopropene is complicated, and a small space needs to be set in the packaging box to place 1-methylcyclopropene microcapsules during use, which increases the workload and cost; and direct use will reduce the 1-methylcyclopropene. The use efficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/16
CPCA23B7/16A23V2002/00A23V2200/10A23V2250/5112A23V2250/5432A23V2250/5118
Inventor 蒋刚彪胡汉剑胡甜刘永林李伟雄苏晓锋
Owner SOUTH CHINA AGRI UNIV
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