Degradation of glucosinolates in rapeseed meal by Lactobacillus delbrueckii and Bacillus subtilis

作     者：Zhenyu Zhang Min Wen Yaqi Chang Zhenyu Zhang;Min Wen;Yaqi Chang

作者机构：Animal Nutrition InstituteSichuan Agricultural UniversityChengdu 611130China Institute of Animal Husbandry and Veterinary MedicineMeishan Vocational Technical CollegeMeishan 620010China 

出 版 物：《Grain & Oil Science and Technology》 (粮油科技（英文版）)

年 卷 期：2020年第3卷第2期

页      面：70-76页

学科分类：090502[农学-动物营养与饲料科学] 0905[农学-畜牧学] 09[农学] 

基　　金：financially supported by the Education Department of Sichuan Province(18ZB0289) 

主　　题：Response surface methodology Glucosinolates Solid-state fermentation Lactobacillus delbrueckii Bacillus subtilis 

摘      要：Lactobacillus delbrueckii and Bacillus subtilis were employed as a new combination of strains to treat rapeseed meal by solid-state fermentation,aiming to efficiently degrade the glucosinolates,which are the main toxin in the ***-factor tests and Response surface methodology(RSM)were used to optimize the fermentation *** the optimum fermentation parameters of 15%total injection volume of the mixture of Lactobacillus delbrueckii and Bacillus subtilis with a ratio of 2:1,bran content of16%,feed to water ratio of 1:1.5,fermentation temperature of 36°C and fermentation time of 72 h,the content of glucosinolates in rapeseed meal was decreased from 64.558μmol/g to 3.473μmol/g,reaching a high degradation rate(94.62%).The high detoxification rate by a consortium of Lactobacillus delbrueckii and Bacillus subtilis provides a bright application prospect in feed utilization of rapeseed meal.