Nutritive values, flavor amino acids, healthcare fatty acids and flesh quality improved by manganese referring to up-regulating the antioxidant capacity and signaling molecules TOR and Nrf2 in the muscle of fish

Flesh quality, amino acid and fatty acid composition, antioxidant status and related molecule expression in fish muscle were estimated by feeding grass carp with diets containing 3.65-27.86 mg/kg diet of manganese (Mn) for 8 weeks. Results demonstrated that optimal Mn increased toughness, collagen c...

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Bibliographic Details
Published in:Food Research International
Main Authors: Jiang, Wei-Dan, Wu, Pei, Tang, Ren-Jun, Liu, Yang, Kuang, Sheng-Yao, Jiang, Jun, Tang, Ling, Tang, Wu-Neng, Zhang, Yong-An, Zhou, Xiao-Qiu, Feng, Lin
Format: Report
Language:English
Published: ELSEVIER SCIENCE BV 2016
Subjects:
Antioxidant
Flesh quality
Grass carp
Manganese
Nrf2
Muscle
Food Science & Technology
CTENOPHARYNGODON-IDELLA
GROWTH-PERFORMANCE
MITOCHONDRIAL DYSFUNCTION
ENZYME-ACTIVITIES
OXIDATIVE STRESS
ATLANTIC SALMON
DEFICIENCY
EVOLUTION
PROTEIN
MEAL
Atlantic salmon
Online Access:http://ir.ihb.ac.cn/handle/342005/33986
http://ir.ihb.ac.cn/handle/342005/33987
https://doi.org/10.1016/j.foodres.2016.09.020
Description
Summary:Flesh quality, amino acid and fatty acid composition, antioxidant status and related molecule expression in fish muscle were estimated by feeding grass carp with diets containing 3.65-27.86 mg/kg diet of manganese (Mn) for 8 weeks. Results demonstrated that optimal Mn increased toughness, collagen content, and pH, and decreased the cooking loss, and cathepsin B and L activities to enhance the flesh quality of fish. Meanwhile, optimal Mn increased the protein, lipid, the total essential amino acid (AA) (especially umami AA), and healthcare fatty acids, C18: 1c+t, C20: 3n-3, C20: 4 and DHA contents. These might be partially related to the decreased lipid peroxidation and protein oxidation, and the enhanced activities of Mn superoxide dismutase (MnSOD), catalase (CAT) and glutathione peroxidase (GPx) modulated by their gene expression, Nrf2 and TOR signaling. We firstly demonstrated that Mn improved flesh quality, flavor and healthcare function in fish muscle. (C) 2016 Elsevier Ltd. All rights reserved.

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