A kind of microbial composite bacterial agent and its application in the preparation of fermented feed

Abstract

The invention relates to a microbial compound bacterial agent and its application in preparing fermented feed, and belongs to the field of biotechnology and fermentation technology. The invention provides a microbial composite bacterial agent that is highly safe and can effectively inhibit filamentous fungi such as Penicillium expanses, Aspergillus niger, Penicillium loudii, and Penicillium digitatum. Composed of Bifidobacterium longum of GDMCC No.60926 and Lactobacillus plantarum with preservation number of CGMCC No.5494, the fermented feed prepared by using this microbial compound bacterial agent is rich in nutrition, not easy to be corrupted and highly safe, specifically reflected in: using The content of mold in the fermented feed prepared by the microbial composite bacterial agent was 0 CFU / g, and after being placed at 30° C. for 15 days, the mold content in the fermented feed prepared by using the microbial composite bacterial agent was still 0 CFU / g.

Description

technical field [0001] The invention relates to a microbial compound bacterial agent and its application in preparing fermented feed, and belongs to the field of biotechnology and fermentation technology. Background technique [0002] my country is a large agricultural country, but in the process of crop processing, it is inevitable that a large amount of waste will be generated, for example, apple pomace will be produced in the production of concentrated apple juice, blueberry pomace will be produced in the production of blueberry juice, and mulberry fruit will be produced in the production of mulberry juice. Fruit pomace, the production of grape juice will produce fruit waste such as grape pomace, the production of hawthorn extract will produce hawthorn pomace, the production of starch will produce cassava pomace, the production of dried carrots will produce vegetable waste such as carrot pomace, and the production of soybean oil will produce The production of soybean meal a...

AI Technical Summary

Problems solved by technology

[0004] However, due to being rich in nutrients such as amino acids and moisture, crop wastes are easily attacked by filamentous fungi, while filamentous fungi such as Penicillium expanses, A. The leaves, fruits, seeds, etc. of the crops cause corruption of the crops, which in turn causes storage diseases of the crops, and they produce toxins such as patulin and citrinin, which will remain in the crops and then enter the human body through the food chain, which is potentially harmful nature) are one of the culprits causing crop spoilage, therefore, even after sterilization, the feed prepared from crops is also easy to spoil during storage

[0005] In order to solve this problem, people such as Ma Qingsong tried to add preservatives to the feed prepared from crops to prolong its shelf life (see references for details: Ma Qingsong, Wang Weiguo. The impact of different antifungal agents on the storage quality of pellet feed [J]. Feed Industry, 2019, 40(9): 38-44), however, there are food safety problems in adding a large amount of preservatives, and chemical additives have many restrictions such as high cost, low return and unfavorable environmental protection (specifically Visible references: Yu Zhengrong, Wu Yinchao, Xie Jiayu, etc. Antifungal agent sodium dehydroacetate induced bleeding test in rats [J]. Advances in Veterinary Medicine, 2018,39(1):73-78 and references: Wang Xueyang, Han Shumin, Li Jinku, etc. Application of antifungal agents in feed [J]. Animal Husbandry and Feed Science, 2019, 40(3):50-52), and insufficient preservative addition will lead to poor antiseptic effect

Images