不同料水比对混菌发酵玉米皮品质的影响  

Effect of different material to water ratios on quality of mixed-culture fermentation of corn husk

作　　者：侯亚丽 刘好静 萧犹睿 张拓[1] 何伟先 杨明明[1] HOU Ya-li;LIU Hao-jing;XIAO You-rui;ZHANG Tuo;He Wei-xian;Yang Ming-ming

机构地区：[1]西北农林科技大学动物科技学院,陕西杨凌712100 [2]四川省齐全饲料有限责任公司,四川遂宁629000

出　　处：《饲料研究》2024年第15期108-111,共4页Feed Research

基　　金：生猪健康养殖新技术及推广应用示范基地(项目编号:2021ZHFP0036)。

摘　　要：试验旨在探究不同料水比对混菌发酵玉米皮品质的影响。试验采用固态发酵工艺,设置4个处理组,料水比分别为30%(Ⅰ组)、40%(Ⅱ组)、50%(Ⅲ组)和60%(Ⅳ组),每组4个重复。玉米皮、米糠、豆粕按20∶3∶3比例混匀,加入7%的凝结芽孢杆菌、卷曲乳酸菌和枯草芽孢杆菌(1∶1∶1)的混合菌液,发酵5 d。结果显示,在料水比为50%的条件下发酵,总活菌数为3.5×108 CFU/g,是发酵前的58倍。Ⅲ组呕吐毒素和干物质(DM)含量显著低于Ⅰ组、Ⅱ组和Ⅳ组(P<0.05),中性洗涤纤维(NDF)含量显著低于Ⅰ组和Ⅱ组(P<0.05),pH值为4.18。研究表明,混菌固态发酵玉米皮的料水比以50%最佳,在该条件下发酵,饲料质地均匀松散,气味浓郁。The study aims to explore the impact of different material to water ratios on the quality of corn husk during mixed microbial fermentation.The experiment used a solid-state fermentation process,setting up four groups with material to water ratios of 30%(GroupⅠ),40%(GroupⅡ),50%(GroupⅢ),and 60%(GroupⅣ),with four replicates for each group.Corn husk,rice bran,and soybean meal were mixed evenly in a ratio of 20∶3∶3,then mixed with a microbial solution containing Bacillus coagulans,Lactobacillus crispatus,and Bacillus subtilis(1∶1∶1)at a seeding rate of 7%,and fermented for five days to investigate the effect of different material to water ratios on the fermentation effect of feed.The results showed that under the condition of a 50%material to water ratio,the total viable count was 3.5×108 CFU/g,which is 58 times that before fermentation.The contents of vomitoxin and dry matter(DM)in GroupⅢwere significantly lower than those in GroupⅠ,GroupⅡand GroupⅣ(P<0.05),the content of neutral detergent fiber(NDF)in GroupⅢwas significantly lower than that in GroupⅠand GroupⅡ(P<0.05),and the pH value of GroupⅢwas 4.18.The study indicates that the optimal material to water ratio for solid-state fermentation of corn husk by mixed microbial cultures is 50%.Under this condition,the fermented feed has a uniform and loose texture with a rich aroma.

关 键 词：料水比 发酵玉米皮 混合益生菌 品质评定 

分 类 号：S816[农业科学—饲料科学]