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Enteromorpha compound antistaling agent and preparation method thereof

A composite fresh-keeping, prolifera technology, applied in food preservation, food science, application and other directions, can solve problems such as danger, achieve the effect of protecting the environment, strong antibacterial ability, and reducing water loss

Inactive Publication Date: 2013-04-17
QINGDAO ANFULAN BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the ingredients of food preservatives contain chemical synthetic substances that are harmful to the human body, and some of them will penetrate into the food as time goes by, which is potentially dangerous.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A compound antistaling agent of Enteromorpha and its preparation method, which is composed of the following components in weight percentage, 0.5% of Enteromorpha extract, 3% of an equal mixture of 55% deacetylated chitosan and 65% deacetylated chitosan , the rest are 0.1mol / L acetic acid solution; wherein the preparation method of Enteromorpha extract comprises the following steps:

[0015] a. After fresh Enteromorpha is dehydrated, it is spray-dried and pulverized when the water content is less than 5%;

[0016] b. Adding concentration to the Enteromorpha powder is 60% ethanol solution for soaking, the solid-liquid ratio of the Enteromorpha powder and the ethanol solution is 1g: 5ml, after soaking for 2 hours, reflux extraction in 80°C waters for 2 hours;

[0017] c. Centrifuge the extract at 4000rpm for 20min, and take the supernatant;

[0018] d. The supernatant was rotatively evaporated to recover ethanol, and the crude extract of Enteromorpha was collected;

[00...

Embodiment 2

[0021] A compound enteromorpha preservative and a preparation method thereof, comprising the following components by weight percentage, 2% of enteromorpha extract, 1% of an equal mixture of 55% deacetylated chitosan and 65% deacetylated chitosan , the rest are 0.1mol / L acetic acid solution; wherein the preparation method of Enteromorpha extract comprises the following steps:

[0022] a. After fresh Enteromorpha is dehydrated, it is spray-dried and pulverized when the water content is less than 5%;

[0023] b. Adding concentration to the Enteromorpha powder is 60% ethanol solution for soaking, the solid-liquid ratio of the Enteromorpha powder and the ethanol solution is 1g: 5ml, after soaking for 2 hours, reflux extraction in 70°C waters for 4 hours;

[0024] All the other steps are the same as in Example 1.

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PUM

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Abstract

The invention relates to an enteromorpha compound antistaling agent and a preparation method thereof, the antistaling agent comprises the following components by weight percent: 0.5-2 percent of enteromorpha extractive, 1-3 percent of chitosan mixture and acetate solution of 0.1 mol / L in balancing amount. The antistaling agent prepared by the invention has a very good restraining effect on putrefying germs, can be applied to fruits such as apples, cherries and grapes and aquatic products such as frozen fishes and shrimps, is low in preparation cost and has a wide application prospect.

Description

technical field [0001] The invention relates to a preservative and a preparation method thereof, in particular to a composite enteromorpha preservative and a preparation method thereof. Background technique [0002] At present, most of the ingredients of food preservatives contain chemical synthetic substances that are harmful to the human body, and some of them will penetrate into the food as time goes by, which is potentially dangerous. [0003] However, due to the impact of industrial wastewater and domestic sewage discharge, the eutrophication of seawater is becoming more and more serious. In recent years, Enteromorpha outbreaks have become more frequent and more serious. Therefore, how to effectively use Enteromorpha resources and reduce pollution is the key to environmental protection today. major issues. Contents of the invention [0004] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a composite enteromo...

Claims

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Application Information

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IPC IPC(8): A23L3/3562
Inventor 周伟丽
Owner QINGDAO ANFULAN BIO TECH
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