A kind of jujube peel extract natural fruit and vegetable bactericidal preservative and using method thereof

An extract and a preservative technology, which is applied in the field of jujube peel extract as a natural fruit and vegetable bactericidal preservative, can solve problems such as the bacteriostatic effect of jujube peel that has not yet been seen, and achieve great development and application value, reduce use and residues, economic benefits and social benefits. Significant effect

Active Publication Date: 2017-10-03
CHINA AGRI UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the extraction and isolation of polyphenols from jujube fruit (jujube skin) and their antioxidant functions have been studied and reported, there are no reports on the antibacterial effect of jujube skin (slag) extracts and their application in antibacterial, antiseptic, and fresh-keeping of fruits and vegetables

Method used

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  • A kind of jujube peel extract natural fruit and vegetable bactericidal preservative and using method thereof
  • A kind of jujube peel extract natural fruit and vegetable bactericidal preservative and using method thereof
  • A kind of jujube peel extract natural fruit and vegetable bactericidal preservative and using method thereof

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preparation example Construction

[0041] The preparation method of jujube peel extract natural fruit and vegetable antistaling agent of the present invention comprises the following steps:

[0042] 1. Hydrolyze a certain amount of jujube skin with 10-50 times the amount of 2-20 mol / L alkali solution at room temperature for 1-4 hours in the dark, and adjust the pH of the hydrolyzed solution to 2 with 6 mol / L acid under ice bath conditions. , suction filtered to obtain the filtrate, extracted 1 to 3 times with n-hexane to remove the esters, the obtained aqueous phase solution was extracted 3 to 5 times with an organic solvent, the extracts were combined, concentrated to dryness in vacuo, and the jujube bark extract was obtained.

[0043] 2. Weigh the jujube peel extract, add a cosolvent, stir to dissolve the jujube peel extract, pour into water, then add antioxidants and surfactants, stir and mix to obtain the jujube peel extract natural fruit and vegetable bactericidal antistaling agent. The composition ratio (...

Embodiment 1-1

[0054] Example 1-1: Jujube bark extract 80, methanol 20, ascorbic acid 1, polyoxyethylene (20) sorbitan monolaurate 0.1, water (sterile water) 1000.

Embodiment 1-2

[0055] Example 1-2: Jujube bark extract 50, methanol 20, ascorbic acid 0.1, polyoxyethylene (20) sorbitan monolaurate 0.05, water (sterile water) 1000.

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Abstract

The invention belongs to the technical field of storage and fresh-keeping of agricultural products of fruits and vegetables, and in particular relates to a natural fruit and vegetable bactericidal and fresh-keeping agent extracted from jujube peel and a use method thereof. A kind of antistaling agent of jujube skin extract natural fruit and vegetable, described antistaling agent comprises jujube skin extract, cosolvent, antioxidant, surface active agent and water, and its composition ratio (by mass and number) is: jujube skin extraction Substance 0.1~80, Cosolvent 10~50, Antioxidant 0.1~5, Surfactant 0.01~1, Water 1000. The jujube peel extract natural fruit and vegetable antistaling agent involved in the present invention is mainly composed of natural substances in jujube fruit, has extremely high food safety, does not cause environmental pollution, has no health hazards to human bodies, and provides green, safe and natural Advanced anti-enzyme anti-corrosion and sterilization preservation technology for postharvest fruits and vegetables can effectively reduce the use and residue of synthetic fungicides and chemical pesticides.

Description

technical field [0001] The invention belongs to the technical field of storage and fresh-keeping of agricultural products of fruits and vegetables, and in particular relates to a natural fruit and vegetable bactericidal and fresh-keeping agent extracted from jujube peel and a use method thereof. Background technique [0002] my country is a traditional large country of fruit and vegetable production, with an annual output of 900 million tons. However, due to the lack of storage and preservation facilities for fruits and vegetables in my country and the backward post-harvest treatment technology, it is difficult to store and preserve various fruits and vegetables in a timely and large amount. Fruit and vegetable products have high moisture content and are mostly ripe in summer and autumn high temperature seasons. After harvest, they are extremely vulnerable to infection by various pathogenic bacteria and rot loss. According to statistics, the annual loss rate of fruits and v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/154
Inventor 曹建康袁树枝王春悦丁薪源卜彦花赵玉梅姜微波
Owner CHINA AGRI UNIV
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