数字农科院2.0

Evaluation Of Pre-Slaughter Low-Current/High-Frequency Electrical S.tunning On Lipid Oxidative S tability, Antioxidant Enzyme Activity And Gene Expression Of Mitogen-Activated Protein Kinase/Nuclear Factor Erythroid 2-Related Factor 2 (Mapk/Nrf2) Signalling Pathway In

文献类型： 外文期刊

作者： Xu, L; Wang, J; Yue, HY; Farnell, MB; Yang, HM; Wang, ZY; Qi, GH

作者机构：

关键词： Antioxidant enzyme; chicken; electrical stunning; lipid oxidation; low current; high frequency; MAPK; Nrf2 signalling pathway; meat quality

期刊名称： INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY

ISSN： 0950-5423

年卷期： 2019 年

页码：

收录情况： JCR（2021版） ; EI（2021版）

摘要： This study was aimed to evaluate the effects of pre-slaughter low-current/high-frequency (LH) electrical stunning (ES) on lipid oxidative stability, antioxidant enzyme activity and gene expression of mitogen-activated protein kinase/nuclear factor erythroid 2-related factor 2 (MAPK/Nrf2) signalling pathway in thigh muscle of broilers. Eighteen birds were randomly allocated to the following three treatments with six replicates per treatment and one bird per replicate: without stunning (control); water-bath ES with sinusoidal alternating LH (86 mA, 1000 Hz, LHES) or high current/low frequency (HL) (130 mA, 60 Hz, HLES). Stunning methods did not affect malondialdehyde level (d 0 similar to d 9) or antioxidant enzymes' activity at d 0 similar to d 2. LHES enhanced glutathione S-transferase activity at d 3 and gene expression of MAPKs and Nrf2 compared with HLES. In conclusion, LHES enhanced gene expression of MAPK/Nrf2 pathway, whereas had no superiority over HLES in lipid oxidative stability (4 degrees C, 9 days) of thigh muscle in broilers.

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