Microorganism and plant derived composite fresh keeping agent for fruits and vegetables

Abstract

The invention belongs to the technical field of fresh keeping agents, aims to develop a composite fresh keeping agent including microorganism derived effective components and plant derived effective components, is used for fresh keeping and corrosion resistance for picked fruits and picked vegetables, and provides a microorganism and plant derived composite fresh keeping agent for fruits and vegetables. The composite fresh keeping agent is prepared from a component A and a component B, wherein the component A consists of microorganism fermentation fluid and a propolis extract, and microorganisms are bacillus amyloliquefaciens Lh-1, candida intermedia and cryptococcus laurentii; and the component B consists of plant derived effective component mixed liquor and film forming liquor, wherein the plant derived effective component mixed liquor is prepared by mixing a tree peony bark water extract with a citrus peel alcohol extract, a rabdosia rubescens alcohol extract, a radix zanthoxyli water extract, a lycium ruthenicum alcohol extract, a Chinese herbaceous peony water extract, a clinopodium chinense alcohol extract and a citronella water extract, and the film forming liquor is prepared by mixing konjac glucomannan with chitosan. Through the adoption of the composite fresh keeping agent, the fruits and the vegetables are furthest prevented from mildewing and rotting, the effects for preventing the fruits and the vegetables from postharvest diseases are enhanced, the moisture dissipation of the fruits and the vegetables is reduced, the storage time of the fruits and the vegetables is prolonged, and a certain economic value is created.

Description

Technical field [0001] The invention belongs to the technical field of microbial preservatives, and specifically relates to a microbial and plant-derived composite fruit and vegetable preservative. Background technique [0002] The preservation and anticorrosion of fruits and vegetables is an important part of storage. How to extend the preservation time of fruits and vegetables is a major problem that needs to be solved in storage. At present, the storage methods adopted in our country are chemical preservation method, low temperature storage method, and modified atmosphere preservation method. Among them, chemical preservation method is more commonly used, but food safety issues follow, so the development of pollution-free anticorrosion preservation method It has become a new trend to control the postharvest diseases of fruits and vegetables with chemicals, and has gradually become a research hotspot. [0003] In the storage of fruits and vegetables, post-harvest diseases includ...

AI Technical Summary

Problems solved by technology

However, the use of microbial-derived preservatives and plant-derived preservatives can simultaneously induce the defense system of fruits and vegetables to resist the invasion of pathogenic bacteria, reduce the water loss of fruits and vegetables, weaken the respiration intensity of fruits and vegetables, etc., and prolong the storage time of fruits and vegetables to preserve the freshness of fruits and vegetables. There are very few preservatives currently reported