Improving the Nutritional Value and Safety of Cotton Stalk Feed via Response Surface Methodology and Co-Fermentation Techniques
文献类型： 外文期刊
作者： Li, Kunyi 1 ; Xu, Yuansheng 1 ; Guo, Kai 1 ; Cui, Weidong 1 ; Li, Yang 1 ; Hou, Min 1 ;
作者机构： 1.Xinjiang Acad Agr Sci, Inst Microbiol, Xinjiang Lab Special Environm Microbiol, Urumqi 830091, Peoples R China
2.Xinjiang Agr Univ, Coll Grassland Sci, Key Lab Western Arid Reg Grassland Resource & Ecol, Minist Educ, Urumqi 830052, Peoples R China
关键词：
sustainable agriculture;
期刊名称：FERMENTATION-BASEL （ 影响因子：3.3； 五年影响因子：3.5 ）
ISSN：
年卷期： 2025 年 11 卷 3 期
页码：
收录情况： SCI
摘要：
Cotton stalks, a major agricultural byproduct, are challenging to decompose naturally; however, they can be transformed into valuable animal feed through microbial fermentation. This study identifies Aspergillus niger HQXY as the most efficient cellulase-producing strain out of six evaluated strains, using it to ferment cotton stalks and significantly degrade cellulose and hemicellulose. By optimizing solid-state fermentation conditions via response surface methodology, the crude fiber content of the cotton stalks was reduced by 34%. A novel sequential co-fermentation approach combining Aspergillus niger with probiotics (Bacillus licheniformis, Candida utilis, and Lactobacillus casei) further enhanced the feed's nutritional profile. The optimal results were obtained using a 1:1:1 ratio of strains (Aspergillus niger, Bacillus licheniformis, and Lactobacillus casei) at a 8% inoculation rate over 30 days. This co-fermentation strategy lowered the pH and reduced gossypol to 15.5 mg
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