Composite active component, antagonistic antibacterial agent and application of antagonistic antibacterial agent in prevention and treatment of postharvest soft rot of kiwi fruits

By combining the yeast yeast with saccharomyces Y3, Bacillus J6 and Frucsakeria cows in a specific proportion, the complex active ingredients are formed, and the antagonism problem during the complexation of various microorganisms is solved, and the efficient antibacterial inhibition of the saccharomyces is achieved, effectively preventing and treating soft rot after harvest of kiwi fruit.

CN120192859APending Publication Date: 2025-06-24SHAANXI NORMAL UNIV
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Patent Information

Application Number
CN202510463742.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2025-06-24

AI Technical Summary

Technical Problem

In the prior art, due to different morphological and physiological and biochemical characteristics of various microorganisms, antagonistic effects are easily produced when complexed, resulting in a decrease in the antibacterial performance of the antagonist after complex, and it is impossible to effectively prevent and treat plant diseases.

Method used

The complex active ingredient was formed according to a specific mass ratio by using yeast syrup, Bacillus J6 and Coxsakeria cows. The three strains did not have antagonistic effects on each other, and synergistically increased the antibacterial rate of the saccharomyces.

Benefits of technology

It has achieved excellent antibacterial effect on the gizzard cavity bacteria, significantly improved the prevention and treatment effect of kiwi fruit post-harvest soft rot, and reduced the incidence of disease.

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Abstract

The invention belongs to the technical field of microbial flora and application thereof, and relates to a composite active component, an antagonistic antibacterial agent and application of the antagonistic antibacterial agent in prevention and treatment of postharvest soft rot of kiwi fruits. One of the composite active ingredients comprises at least two or more of hansenula polymorpha Y3, bacillus J6 and coxakella cocori K9. The hansenula polymorpha Y3, the bacillus J6 and the coxakella cocori K9 are adopted to form a composite active component according to a specific proportion, and the three strains do not generate antagonism mutually and can achieve a synergistic effect to improve the bacteriostasis rate on botryosphaeria dothidea, and the good prevention and treatment effect on the soft rot of the picked kiwi fruits is achieved.
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