Effect of different material to water ratios on quality of mixed-culture fermentation of corn husk
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％(Group Ⅰ),40％(Group Ⅱ),50％(Group Ⅲ),and 60％(Group Ⅳ),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 Group Ⅲwere significantly lower than those in Group Ⅰ,Group Ⅱ and Group Ⅳ(P＜0.05),the content of neutral detergent fiber(NDF)in Group Ⅲ was significantly lower than that in Group Ⅰ and Group Ⅱ(P＜0.05),and the pH value of Group m was 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.
material to water ratiofermented corn huskmixed probioticsquality assessment
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维普
