A kind of composite biological preservative and its application

Abstract

The invention provides a composite biological preservative and application thereof. The invention firstly provides a composite biological antistaling agent, which includes Lactobacillus rhamnosus and tea polyphenols; the mass concentration of the tea polyphenols is 0.01%-2.0%. The low-concentration tea polyphenols and Lactobacillus rhamnosus in the composite biological preservative have a synergistic effect when compounded, and have a synergistic effect on E. , Citrobacter and Providencia all have significant inhibitory effects, and have a broad antibacterial spectrum, significantly reducing the total number of colonies and protein decomposition rates of livestock and aquatic products to maintain protein content, ensuring that aquatic products are bright red, shiny, and tight It has a solid feeling and smell, and when the composite biological preservative is used and stored at a temperature of 4°C or lower, the shelf life of animal products and aquatic products can be further significantly extended, and it has great popularization and application value.

Description

technical field [0001] The invention belongs to the technical field of preservation. More specifically, it relates to a composite biological preservative and its application. Background technique [0002] At present, most of the preservation methods for livestock and aquatic products are cold storage, and a few are modified atmosphere preservation, vacuum packaging and chemical treatment; The growth and reproduction of microorganisms on the surface will lead to the spoilage of livestock products and aquatic products; the same is true for controlled atmosphere preservation, which cannot meet the requirements of market circulation for livestock products and aquatic products; vacuum packaging requires large-scale sterilization equipment, and the cost is very high; chemical The chemical preservatives used in the treatment have a certain poisonous effect on the human body, and will also cause adverse effects on the ecological environment. [0003] Natural preservatives have bec...

AI Technical Summary

Problems solved by technology

But its own defects are also very obvious, such as only inhibiting Gram-positive bacteria, only suitable for acidic food, etc.

In addition, in patent 201910105092.2, a chicken preservative is formulated by mixing tea polyphenols, sorbitol, vitamin C, lysozyme, carboxymethyl cellulose, compound lactic acid bacteria fermentation concentrate, compound essential oil mixture, etc., but it still exists Excessive concentration of tea polyphenols will affect other meat quality, and the antibacterial and fresh-keeping effect is not significant

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