The disclosure provides microbial composition and application in reducing biogenic amines, and belongs to the technical field of food processing and manufacturing. The disclosure provides a construction method for an inoculated biogenic amine degrading lactic acid bacteria flora and an application in reducing biogenic amines in cyclic rice steeping and persistently inhibiting invasion of amine producing microorganisms. In the disclosure, a lactic acid bacteria ternary interacting flora that efficiently inhibits invasion of the amine producing microorganisms is constructed. In a rice steeping process in preparation of a brewed product, the lactic acid bacteria ternary interacting flora is inoculated for rice steeping, and a cyclic rice steeping process is improved. The result shows that inoculation of the lactic acid bacteria ternary interacting flora and utilization of the improved rice steeping process may effectively reduce the content of biogenic amines in rice steeping water and completely inhibit invasion of the amine producing microorganisms to realize zero growth of the biogenic amines, thereby creating conditions for the cyclic rice steeping process in mass production in a plant.

The present disclosure discloses a processing method of lactic acid fermented food, including: performing a first mixing step by combining food raw materials with sodium chloride to create a first mixture; performing a second mixing treatment on the first mixture and a food acid to obtain a second mixture; performing a fermentation treatment on the second mixture using lactobacillus to obtain the lactic acid fermented food, wherein a content of the sodium chloride ranges from 5% to 7% by mass based on the mass of the food raw materials; a pH value of the second mixture is lower than or equal to 3.8; and the lactobacillus includes Lactobacillus plantarum and/or Lactobacillus curvatus. The method of the present disclosure has low initial salinity, low gas production and short fermentation period and is beneficial to large-scale production.

Disclosed are probiotic compositions and methods for improving animal health and animal production. The probiotic compositions include two or more novel Lactilactobacillus strains which are capable of colonizing the gastrointestinal tract to improve the health of an animal. A probiotic composition includes Lactilactobacillus curvatus and a second Lactilactobacillus strain. The second Lactilactobacillus strain can include a second strain of Lactilactobacillus curvatus, Lactilactobacillus sakei, Lactilactobacillus fuchuensis, and combinations thereof, and a carrier suitable for animal administration. Also disclosed are Bacillus strains.