Composite biological preservative and application thereof

Abstract

The invention provides a composite biological preservative and application thereof. The invention firstly provides a composite biological preservative which comprises lactobacillus rhamnosus and tea polyphenol, wherein the mass concentration of the tea polyphenol is 0.01%-2.0%. The low-concentration tea polyphenol and lactobacillus rhamnosus in the composite biological preservative have a synergistic interaction effect when being compounded, have a remarkable inhibition effect on escherichia coli, salmonella, staphylococcus aureus, vibrio parahaemolyticus, Proteus penneri, citrobacter and Providencia, and are wide in antibacterial spectrum; the composite biological preservative can significantly reduce the total number of colonies of animal products and aquatic products and the decomposition rate of proteins to maintain the content of the proteins and ensure bright red, glossy, tight and firm meat and the flavor of the aquatic products, and can further significantly prolong the shelf lives of the animal products and the aquatic products when the combined storage temperature of the composite biological fresh-keeping agent is 4 DEG C or lower. Great popularization and application values are realized.

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...

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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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