Microorganism composite zymocyte agent as well as preparation method and application thereof

Abstract

The invention relates to a microorganism composite zymocyte agent as well as a preparation method and an application thereof. The invention is characterized in that the active components of the composite zymocyte agent are Cida tropicalis and lactococcus lactis which are mixed according to the mass ratio of (0.5-2): 1. The preparation process comprises the following steps: carrying out oblique plane strain culture on the Cida tropicalis and lactococcus lactis; then carrying out liquid seed amplification culture to obtain a Cida tropicalis liquid and a lactococcus lactis liquid; mixing the Cida tropicalis liquid and lactococcus lactis liquid according to the mass ratio of (0.5-2): 1 and inoculating the mixture into a solid amplification culture medium to obtain the composite zymocyte agent according to the inoculum size of 4-5%(w / v); and adding the composite zymocyte agent to kitchen waste for microbial fermentation. The invention has the advantages of suppressing growth of putrefying bacteria in the kitchen waste and reproduction of pathogenic microorganism, thus featuring good freshness-retaining effect and organoleptic quality while increasing protein content and beneficial flora content of the kitchen waste.

Description

technical field [0001] The invention relates to a composite fermenting bacterial agent and a preparation method thereof, in particular to a microbial composite fermenting bacterial agent for treating kitchen waste, a preparation method and application thereof. Background technique [0002] Food waste refers to food waste and food residues in households, schools, government canteens, and catering industries, and is the main component of urban domestic waste. Food waste mainly includes rice and flour food residues, vegetables, vegetable oils, animal oils, etc. From the chemical composition, it includes starch, cellulose, protein, lipids, and inorganic salts. Its characteristics are as follows: 1. Crude protein and crude fiber High content of organic matter, such as high value of development and utilization, but perishable and produce stench; 2, high water content, inconvenient collection and transportation, improper treatment is likely to cause secondary pollution; 3, oil and ...

AI Technical Summary

Problems solved by technology

Food waste mainly includes rice and flour food residues, vegetables, vegetable oils, animal oils, etc. From the chemical composition, it includes starch, cellulose, protein, lipids, and inorganic salts. Its characteristics are as follows: 1. Crude protein and crude fiber High content of organic matter, such as high value of development and utilization, but perishable and produce stench; 2, high water content, inconvenient collection and transportation, improper treatment is likely to cause secondary pollution; 3, oil and salt content is higher than other domestic waste , has a great impact on the quality of resource-based products and requires a lot of processing costs. Using microorganisms to ferment food waste to make fermented products can well solve the above-mentioned problems

[0003] Most of the existing fermentation strains used for food waste treatment use mold and yeast. The prepared protein feed has good palatability and is conducive to digestion. It has no obvious threat to pigs and humans, but because mold and yeast are suitable The pH value of growth is 6.5-7, which is conducive to the growth of spoilage bacteria and the reproduction of pathogenic microorganisms in food waste, which can easily lead to deterioration and odor of food waste, and at the same time reduce the protein content in food waste

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