Preparation method of full-biodegrade edible preservative film

A fresh-keeping film and all-biological technology, applied in the field of preparation of fully biodegradable edible fresh-keeping film, can solve the problems of high price, limited source of casein, poor film-forming ductility, etc., and achieve low price, increased tensile strength, increased good plastic effect

Inactive Publication Date: 2018-11-27
安徽永豪新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese Patent Publication No.: "CN102850562A" discloses a method for preparing an edible and easily degradable plastic wrap by drying casein and glycerin in milk. Relatively limited, high price, poor film ductility and other problems still exist

Method used

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  • Preparation method of full-biodegrade edible preservative film

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Embodiment 1

[0017] A fully biodegradable edible preservative film, made of the following raw materials in parts by weight: 60 parts of modified starch, 40 parts of edible gelatin, 30 parts of soybean meal, 15 parts of carboxymethyl cellulose, 1 part of chitosan, plasticized 5 parts of water, 1 part of citric acid, 1 part of antibacterial oil, 5 parts of ginger juice, 5 parts of glutinous rice juice, 5 parts of carrot powder

[0018] A method for preparing a fully biodegradable edible plastic wrap, comprising the following steps: (1) respectively mixing soybean meal and clear water according to the mass ratio of material to liquid at 1:8, adjusting the pH value to 7.5 with 0.5mol / L NaOH, and maintaining the temperature at 45°C After extraction for 10 minutes, filter with double-layer gauze and keep the filtrate, and add 2 times deionized water to the filter residue and stir evenly, then pass it through a water mill to grind evenly, add 3 times deionized water after grinding, and use 0.5mol ...

Embodiment 2

[0023] A fully biodegradable edible fresh-keeping film is made of the following raw materials in parts by weight: 60 parts of modified starch, 60 parts of edible gelatin, 60 parts of soybean meal, 15 parts of carboxymethyl cellulose, 3 parts of chitosan, 5 parts plasticizer, 15 parts water, 5 parts citric acid, 5 parts antibacterial oil, 5 parts ginger juice, 5 parts glutinous rice juice, 5 parts carrot powder.

[0024]A method for preparing a fully biodegradable edible plastic wrap, comprising the following steps: (1) respectively mixing soybean meal and clear water according to the mass ratio of material to liquid at 1:8, adjusting the pH value to 7.5 with 0.5mol / L NaOH, and maintaining the temperature at 45°C After extraction for 10 minutes, filter with double-layer gauze and keep the filtrate, and add 2 times deionized water to the filter residue and stir evenly, then pass it through a water mill to grind evenly, add 3 times deionized water after grinding, and use 0.5mol / ...

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Abstract

The invention discloses a preparation method of a full-biodegrade edible preservative film. The full-biodegrade edible preservative film is prepared from the following raw materials in parts by weight: 30-60 parts of modified starch, 30-60 parts of edible gelatin, 30-60 parts of soybean meal, 10-15 parts of carboxymethylcellulose, 1-3 parts of chitosan, 1-5 parts of a plasticizer, 10-15 parts of water, 1-5 parts of citric acid, 1-5 parts of antibacterial oil, 1-5 parts of fresh ginger juice, 1-5 parts of sticky rice juice and 1-5 parts of carrot powder. The edible preservative film prepared byvirtue of the preparation process has the excellent characteristics of no toxin, environmental friendliness, no pollution and lightness, has strong flexibility and water repellency and further has packaging and eating functions.

Description

technical field [0001] The invention relates to a preservative film and a preparation method thereof, in particular to a preparation method of a fully biodegradable edible preservative film. Background technique [0002] Plastic wraps are ubiquitous in life, and many families cannot do without them. Most of the plastic wraps currently on the market are made of vinyl masterbatch, just like the commonly used plastic bags. According to the different types of vinyl masterbatch, cling film is divided into three categories: polyethylene, polyvinyl chloride and polyvinylidene chloride. These plastic wraps are relatively harmful to the human body. At the same time, because plastics are not easy to decompose and rot in nature, they will produce toxic gases when burned, which will bring serious harm to the ecological environment. In recent years, unsafe accidents caused by food packaging have pushed the problem of food packaging to the forefront of the times again and again. Plastic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/06C08L89/00C08L1/28C08L5/08C08L91/00C08L3/02C08K5/092C08K5/00C08J5/18B65D65/46C08H1/00
CPCB65D65/463B65D65/466C08H1/00C08J5/18C08J2303/06C08J2401/28C08J2403/02C08J2405/08C08J2489/00C08J2491/00C08K5/00C08K5/092Y02W90/10Y02A40/90
Inventor 董子豪
Owner 安徽永豪新材料科技有限公司
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