Bioconversion of agriculture by-products with functionally enhanced Streptomyces sp. SCUT-3: Fish skin as a model

文献类型： 外文期刊

第一作者： Ni, Jing-Tao

作者： Ni, Jing-Tao;Zhang, Ming-Shu;Lu, De-lin;Lu, Wen-jun;Wu, Lei;Yang, Zhen-dong;Qin, Can;Dai, Zhen-jie;Li, Zhi-wei;Feng, Wen-jing;Cai, Hua-hong;Zhang, Jia-rui;Liang, Chu-yan;Luo, Xiao-Chun;Deng, Jun-jin

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关键词： Collagen hydrolysates; Bioconversion; Oligopeptide; Anti-aging; Anti-inflammation

期刊名称：FOOD CHEMISTRY （ 影响因子：9.8； 五年影响因子：9.7 ）

ISSN： 0308-8146

年卷期： 2025 年 463 卷

页码：

收录情况： SCI

摘要： With the global population continuously rising, efficient bioconversion of inedible agricultural by-products is crucial for human food and energy sustainability. We here propose solid-state fermentation approaches to efficiently convert biopolymers into oligomers/monomers by accelerating the natural degradation process of the versatile Streptomyces sp. strain SCUT-3. Using fish skin as a representative by-product, 54.3 g amino acids and 14.7 g peptides (91 % < 2500 Da) were recovered from 89.0 g protein in 100 g tilapia skin sample by collagenase-overexpressed SCUT-3 for seven days at a 1:4 substrate:liquid ratio. Fish skin collagen hydrolysates exhibited excellent anti-oxidation, anti-hypertension, scratch-repairing, anti-aging, anti-ultraviolet radiation, and anti-inflammation effects on human skin fibroblasts In vitro and zebrafish larvae in vivo, indicating their potential applications in healthcare/skincare and anti-atopic dermatitis. As Laozi said, the divine law follows nature. This study underscores the efficacy of genetically engineered SCUT-3 according to its natural biomass utilization laws in large-scale biopolymer conversion.

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