Sterilization preservative and preparation method and application thereof

A technology of antistaling agent and sterile water, which is applied in the field of bactericidal antistaling agent, and achieves the effect of simple preparation method and convenient operation

Inactive Publication Date: 2011-06-29
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Mix 100g of zein and 50g of soybean protein isolate with 400mL of sterile water, then mix in an ultrasonic oscillator for 4min, centrifuge at 1600g for 10min after mixing, and take the supernatant; then add 25g of shellac and 5g of sorbitol to the protein In the mixture, put in a water bath at 90°C for 30 minutes, and stir during the water bath; when the mixture is cooled, add 5mL of grapefruit seed extract and 10g of honeysuckle extract, and finally add sterile water to 1L to prepare edible fruit Coating bactericidal preservative.

Embodiment 2

[0039] Mix 150g of zein and 75g of soybean protein isolate with 350mL of sterile water, then mix in an ultrasonic oscillator for 4 minutes, centrifuge at 1600g for 10 minutes after mixing, and take the supernatant; then add 50g of shellac and 10g of sorbitol to the protein Add 25mL of grapefruit seed extract and 5g of honeysuckle extract to the mixed solution, and finally add sterile water to 1L to prepare edible fruit. Coating bactericidal preservative.

Embodiment 3

[0041] Mix 50g of zein with 300mL of sterile water, then mix in an ultrasonic oscillator for 4min, centrifuge at 1600g for 10min after mixing, and take the supernatant; then add 50g of sorbitol to the protein mixture, and put it in a water bath at 90°C 30min, stir during the water bath process; when the mixture is cooled, add 50mL of grapefruit seed extract and finally add sterile water to 1L to prepare an edible fruit coating bactericidal preservative.

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Abstract

The invention provides a sterilization preservative. Each liter of the sterilization preservative comprises the following components: 50-150 g of corn protein, 0.5-50 mL of grapefruit seed extract and 5-50 g of sorbitol. The invention has the beneficial effects that as the corn protein and the like are used as the film forming agent in combination with natural bacteriostatic and bactericidal active ingredients such as the grapefruit seed extract, the sterilization preservative provided by the invention has the functions of sterilization and retaining freshness as well as edibility, and is a safe, nontoxic and pollution-free film sterilization preservative; and the preparation method is simple and convenient to operate.

Description

technical field [0001] The invention relates to a bactericidal and fresh-keeping agent, in particular to an edible bactericidal and fresh-keeping agent for fruit preservation. Background technique [0002] The fresh fruits that people eat daily have strong seasonality, high water content, many soluble components, and are easily attacked by microorganisms and rot and deteriorate, so they are not easy to preserve. According to incomplete statistics, at least 25% of the fruits and vegetables produced in the world are lost before being eaten by consumers, and the loss rate of some varieties is even as high as 40%, causing hundreds of millions of economic losses every year. This situation not only wastes a large amount of resources, directly damages the interests of fruit farmers, but also leads to the instability of the fresh fruit supply market. [0003] In order to solve the problem of fruit preservation and preservation, low temperature preservation, controlled atmosphere pr...

Claims

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Application Information

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IPC IPC(8): A23B7/154
Inventor 罗云波许文涛黄昆仑商颖田洪涛张雅楠
Owner CHINA AGRI UNIV
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