Sea yeast for diseases biological control of postharvest fruits and vegetables, and preparation and use thereof

Abstract

The invention discloses a marine yeast for biologically preventing and treating postharvest diseases of fruits and vegetables, a method for preparing the same and application thereof. A marine yeast strain Rhodosporidium p aludigenum Fell & Tallman is screened out from the seawater of the coastal waters of the East China Sea. The colony of the marine yeast is pink, has a smooth surface, and grows in a culture medium added with 1 to 2 percent NaCl. The use of a cell suspension of the yeast with certain concentration can effectively inhibit various postharvest main mycoses such as alternaria, botrytis cinerea, penicilllum expansum, penicillium digitatum, and pestalotia. The marine yeast strain Rhodosporidium p aludigenum Fell & Tallman is used for biologically preventing and controlling the postharvest diseases of fruits and vegetables for the first time both at home and abroad. The strain has various functions of preventing decay, controlling oxidative stain, controlling softening flavour reversion and the like, and has the advantages of convenient use, no generation of antibiotic, no environment pollution, security, innocuity, and broad market prospect. At the same time, the strain is conducive to the export for earning foreign currency of China's high-quality fruit and vegetable products, and has significant economic and social benefits.

Description

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AI Technical Summary

Benefits of technology

It describes how different types of bacteria called Saccharomyces cerevisiae (Saccharomycetes) grow on plants that have specific requirements such as salt tolerance or water management. These organisms help prevent damage caused during storage and transportation processes while still being effective against harmful germs like mold spores. They work with other beneficial agents when they come into contact with them. Overall, this technology helps improve food safety and quality through reducing spoilage due to contamination.

Problems solved by technology

This patents discusses the problem of controlling or reducing harmful organism populations during processing and storing agriculturals like berries and tomatoes. Current methods involve adding agents called steroid compounds into crops, making it difficult to meet international standards set forth internations relating to safe consumption regulations. Therefore there needs further improvement measures to reduce these negative effects while maintaining beneficial levels within acceptable limits.

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