Low-Current & High-Frequency Electrical Stunning I.ncreased Oxidative Stress, Lipid P eroxidation, And Gene Transcription Of The Mitogen-Activated Protein Kinase/Nuclear Factor-Erythroid 2-Related Factor 2/Antioxidant Responsive Element (Mapk/Nrf2/Are) Signaling Pathway In Breast
文献类型: 外文期刊
作者: Xu, L; Zhang, HJ; Yue, HY; Wu, SG; Yang, HM; Qi, GH; Wang, ZY
作者机构:
关键词: Electrical stunning; Meat color; Oxidative stress; Lipid peroxidation; Antioxidant enzyme; MAPK/Nrf2/ARE; Signaling pathway
期刊名称: FOOD CHEMISTRY
ISSN: 0308-8146
年卷期: 2018 年 242 卷
页码:
收录情况: JCR(2021版) ; EI(2021版)
摘要: Mechanism of electrical stunning (ES) methods on lipid peroxidation and antioxidant protection were studied by determining meat color, serum variables, antioxidant-related enzyme activities, gene expressions of mitogen-activated protein kinases (MAPKs), nuclear factor-erythroid 2-related factor 2 (Nrf2), glutathione S-transferases (GSTs), and superoxide dismutases (SODs). Broilers were sacrificed without stunning, or after ES with 65 V, 86 mA, 1000 Hz (E65 V) or 150 V, 130 mA, 60 Hz (E150V). Serum cortisol and uric acid, muscular malondialdehyde and mRNA levels of MAPKs, Nrf2, GSTA3, GSTT1 and SOD2 were increased, whereas, serum free triiodothyronine, free thyroxine, muscular GST(1d) activity were decreased in E65V compared with E150V. Overall, the serum uric acid and transcription of the MAPK/Nrf2/ARE (antioxidant responsive element) signaling pathway were elevated, but didn't overcome the oxidative stress stimulated by low-current & high-frequency ES, leading to aggravated lipid peroxidation at 1 d and 9 d postmortem in breast muscle compared with high-current & low-frequency ES.
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