Dietary grape seed proanthocyanidin extract improved the chemical composition, antioxidant capacity, myofiber growth and flesh quality of Nile tilapia muscle

文献类型： 外文期刊

第一作者： Yang, Huici

作者： Yang, Huici;Li, Yichao;Wang, Guangjun;Xie, Jun;Yu, Ermeng;Kaneko, Gen

作者机构：

关键词： Antioxidant capacity; Protein deposition; Myofiber growth; Volatile compounds; Muscle quality

期刊名称：AQUACULTURE REPORTS （ 影响因子：3.7； 五年影响因子：3.8 ）

ISSN： 2352-5134

年卷期： 2023 年 33 卷

页码：

收录情况： SCI

摘要： The effects of dietary grape seed proanthocyanidin extract (GSPE) supplementation (0, 100, 200, and 400 mg/ kg) on the stress response, antioxidant status, myofiber growth, and meat quality of Nile tilapia were investigated in present study. Dietary GSPE lowered serum stress-related parameters (cortisol, glucose, Na+, and lactate) and improved the total antioxidant capability with enhanced superoxide dismutase and catalase activities and reduced levels of reactive oxygen species. Meanwhile, myoglobin content, pH, color, tenderness, the waterholding capacity were improved. Dietary GSPE also increased the contents of delicious amino acids, flavor amino acids, and total amino acids, C18:3n-3 (ALA), C20:5n-3 (EPA), n-3 poly-unsaturated fatty acids, decreasing off-flavor compounds such as aldehydes and alcohols. Moreover, GSPE supplementation improved myofiber growth and muscle protein deposition likely via the activation of the IGFs/PI3K/Akt/TOR/S6K1/4EBP1 pathway, contributing to the enhanced growth performance of Nile tilapia (Oreochromis niloticus). Together, GSPE is a promising natural food additive that enhances various important meat quality parameters of fish, and the optimal dietary GSPE requirement for maximum growth and muscle protein deposition was approximately 280 mg/kg.

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