Nutritional value improvement of soybean meal through solid-state fermentation by proteases-enhanced Streptomyces sp. SCUT-3
文献类型： 外文期刊
作者： Lu, De-Lin 1 ; Zhang, Ming-Shu 1 ; Wang, Fu-Bao 4 ; Dai, Zhen-Jie 1 ; Li, Zhi-Wei 2 ; Ni, Jing-Tao 1 ; Feng, Wen-Jing 1 ; Zhang, Fu-Gen 1 ; Dai, Jun 1 ; Wang, Hai-Ning 1 ; Deng, Jun-Jin 3 ; Luo, Xiao-Chun 1 ;
作者机构： 1.South China Univ Technol, Guangzhou Higher Educ Mega Ctr, Sch Biol & Biol Engn, Guangzhou 510006, Peoples R China
2.GuangZhou XiaoChun Biotechnol Co Ltd, Room 1001-A056,190 Kaitai Ave, Guangzhou 510535, Peoples R China
3.Guangdong Acad Agr Sci, Agro Biol Gene Res Ctr, Guangdong Prov Key Lab Crop Germplasm Resources Co, Guangzhou 510640, Peoples R China
4.Guangdong Jieda Feed Co Ltd, Guangdong Special Aquat Funct Feed Engn Technol Re, Foshan 528211, Peoples R China
关键词： Soybean meal; Solid-state fermentation; Protein digestibility improvement
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）
ISSN： 0141-8130
年卷期： 2025 年 298 卷
页码：
收录情况： SCI
摘要： With the global population expected to reach 10 billion by the 2050s, the demand for protein will surge, intensifying the need for high protein utilization efficiency. This study investigates the use of protease-enhanced Streptomyces sp. SCUT-3-3940 to degrade soybean meal (SBM) via solid-state fermentation (SSF). Optimized conditions resulted in anti-nutritional factors elimination and high soluble protein recovery (41.1 g/100 g), including bioactive oligopeptides (17.3 g/100 g) with antihypertensive and antioxidant properties. The degradation also produced free amino acids rich in essential amino acids, and other nutrient enhancing compounds. The fermented SBM (FSBM) exhibited superior digestibility, making it a valuable protein source. In a 60-day largemouth bass trial, replacing 10 % SBM with FSBM in feed significantly improved feed intake and weight gain. This method offers an efficient, eco-friendly, and cost-effective solution to address global protein shortages.
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