Screening method and application of lactic acid bacterium with antioxidant capacity

A technology of antioxidant capacity and screening method, applied in the biological field, can solve problems such as lactic acid bacteria that do not involve antioxidant properties
CN110257302AActive Publication Date: 2019-09-20ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2019-09-20

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Abstract

The invention discloses a screening method and application of a lactic acid bacterium with antioxidant capacity. Pediococcus pentosaceus ZJUFA-4 herein is collected at China General Microbiological Culture Collection Center under CGMCC NO: 16767. The lactic acid bacterium is isolated from traditional pickles by re-screening the capacities of removing DPPH (1,1-diphenyl-2-picrylhydrazyl) free radicals, hydroxyl radicals and superoxide anion free radicals , after hydrogen perioxide resistance primary screening. Corn and soybean meal composite feed fermented with the lactic acid bacterium has better antioxidase activity and higher antioxidant content, and is applicable to improving growth performance of fattened pigs and increasing their antioxidant level.
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Description

technical field

[0001] The invention relates to the field of biotechnology, in particular to the field of development and application of functional lactic acid bacteria, in particular to a strain of lactic acid bacteria with antioxidant capacity and its application. Background technique

[0002] Lactic acid bacteria is a general term for a class of bacteria that use fermentable carbohydrates to produce a large amount of lactic acid, have no spores, and are Gram-positive. They are widely distributed and diverse, including Lactobacillus, Lactococcus, Streptococcus, and Pediococcus. Facultative anaerobic microorganisms. Studies have shown that lactic acid bacteria have a variety of functions, not only can regulate the body's immune system, maintain the balance of intestinal flora, but also have a certain antioxidant capacity, by scavenging free radicals to keep the body in a relatively stable state, so it has antioxidant function Lactic acid bacteria can be used as a natural a...

Claims

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