水生生物学报2024，Vol.48Issue(3)：405-412,8.DOI:10.7541/2024.2023.0154
固态发酵改善棉籽粕品质的研究
IMPROVEMENT OF QUALITY IN COTTONSEED MEAL BASED ON SOLID-STATE FERMENTATION
摘要
Abstract
This study aimed to enhance the quality of cottonseed meal through solid-state fermentation.The effects of sensory evaluation,anti-nutritional factors,crude protein,total acid and acid-soluble protein after fermentation were investigated.Bacillus subtilis was employed for the degradation of anti-nutritional factors,and the optimum conditions for inoculation amount,water-material ratio and fermented time were determined.The results showed that,when the optimum amount of inoculation was 11％,the optimum ratio of water to material was 0.6％-0.8％,and the degrada-tion rate of anti-nutritional factors reached the highest when the fermentation time reached 60h.Then mixed solid-state fermentation was carried out by using Saccharomyces cerevisiae,Lactobacillus plantarum and Bacillus subtilis plus phytase and cellulase,and the optimum proportion of mixed bacteria and enzyme solution was identified.The results demonstrated that a 1∶1∶2 ratio of Bacillus subtilis,Saccharomyces cerevisiae and Lactobacillus plantarum,combined with 1.25％cellulase and 0.10％phytase,achieved the highest degradation of anti-nutritional factors.Furthermore,the sensory evaluation of cottonseed meal after mixed bacteria fermentation was better than that of single bacteria fermen-tation.The degradation rate of free gossypol and phytic acid reached 40.13％and 34.92％,respectively,while tannin degradation rate was 40.24％.Additionally,the crude protein,acid-soluble protein and total acid increased by 10.26％,59.2％and 79.49％,respectively.This study provides a reference for improving the nutritional value of cottonseed meal and supports its use as a plant protein source in aquafeeds.关键词
棉籽粕/固态发酵/纤维素酶/植酸酶/抗营养因子/酸溶蛋白Key words
Cottonseed meal/Solid-state fermentation/Cellulase/Phytase/Anti-nutrient factor/Acid soluble protein分类
农业科技引用本文复制引用
邹峰余,贾冰玉,郑华,赵述淼,罗智,刘志博,柯江,谭肖英..固态发酵改善棉籽粕品质的研究[J].水生生物学报,2024,48(3):405-412,8.基金项目
国家重点研发计划(2018YFD0900400)资助[Supported by the National Key R & D Program of China(2018YFD0900400)] （2018YFD0900400）
