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Edible tapioca starch-sodium alginate membrane and preparation method thereof

A technology of sodium alginate film and tapioca starch, applied in the direction of climate sustainability, sustainable manufacturing/processing, flexible coverings, etc., can solve the problems of not easy to decompose and rot, affect human health, environmental pollution, etc., and achieve easy degradation , Strong fresh-keeping ability

Inactive Publication Date: 2019-09-24
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that the food packaging materials commonly used in daily life are mainly plastic products processed by high molecular chemical substances. The chemical properties of the raw materials are stable and will not endanger human health. The unsafe substances produced under the influence of conditions will have a serious impact on food and even human health. At the same time, its characteristics of not easy to decompose and rot lead to serious environmental pollution

Method used

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  • Edible tapioca starch-sodium alginate membrane and preparation method thereof
  • Edible tapioca starch-sodium alginate membrane and preparation method thereof
  • Edible tapioca starch-sodium alginate membrane and preparation method thereof

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Embodiment Construction

[0024] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with examples, but the content of the present invention is not limited to the following examples.

[0025] Add 100mL of ultrapure water to the Erlenmeyer flask, add 2mL of glycerin to the heating pot with a magnetic water bath at 80°C and 1000r / min, stir for 2min, accurately weigh 1.5g of tapioca starch and 1g of sodium alginate with an electronic balance, and add For cassava starch, adjust the rotation speed to 1500r / min, stir for 2min, then add sodium alginate and stir for 38min to gelatinize the starch and gelatinize the sodium alginate, cool to room temperature, add 0.5g of aloe vera gel, and use a homogenizer at 13500r / Pause for 30 seconds every 1 minute under stirring, and the total homogenization time is 4 minutes to make all raw materials evenly distributed. Debubble at 40°C for 30 minutes, pour into a smooth 14mm plastic culture ...

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Abstract

The invention relates to the field of food packaging and in particular provides an edible tapioca starch-sodium alginate membrane and a preparation method thereof. The preparation method comprises the following steps: by taking a tapioca starch as a main raw material, putting sodium alginate, an aloe gel and glycerinum into the solution of the tapioca starch so as to obtain a uniform and sable gel solution, and further carrying out degassing, demolding, drying and membrane peeling, so as to obtain the edible tapioca starch-sodium alginate membrane. The edible tapioca starch-sodium alginate membrane has the characteristic of being edible and degradable, is completely nontoxic, is harmless to human bodies, and is free of environment pollution.

Description

technical field [0001] The invention relates to the field of food packaging, and specifically provides an edible tapioca starch-sodium alginate film and a preparation method thereof. Background technique [0002] In recent years, while plastic packaging materials have brought great convenience to people's lives, there are also many potential hazards. Studies have shown that the food packaging materials commonly used in daily life are mainly plastic products processed by high molecular chemical substances. The chemical properties of the raw materials are stable and will not endanger human health. The unsafe substances produced under the influence of conditions will have a serious impact on food and even human health. At the same time, their characteristics of not easy to decompose and rot lead to serious environmental pollution. [0003] With the high emphasis on the safety of food packaging materials, various countries have carried out very strict control on the import and ...

Claims

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Application Information

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IPC IPC(8): C08L3/02C08L5/04C08K5/053C08K5/00C08J5/18B65D65/46
CPCB65D65/463C08J5/18C08J2303/02C08J2405/04C08K5/0058C08K5/053Y02W90/10Y02A40/90
Inventor 杨子懿常乐张万刚
Owner NANJING AGRICULTURAL UNIVERSITY