原创《诺邓火腿粗肽抗氧化活性与亚硝酸钠清除活性》：该文是关于亚硝酸钠论文范文，为你的论文写作提供相关论文资料参考。
摘 要：以諾邓火腿为研究对象,提取诺邓火腿粗肽,测定不同质量浓度粗肽液对羟自由基（·OH）、1,1-二-2-三硝基苯肼（DPPH）自由基的清除效果、Fe2+螯合能力、脂质氧化抑制能力及普通条件和模拟胃液条件下对亚硝酸钠的清除能力.结果表明：质量浓度为5.0 mg/mL的诺邓火腿粗肽液对·OH和DPPH自由基的清除率分别为47.81%和67.10%,与相同质量浓度的谷胱甘肽（glutathione,GSH）相比差异极显著（P<0.01）；质量浓度为
5.0 mg/mL的粗肽液对Fe2+的螯合率为31.38%,与GSH相比差异不显著（P>0.05）；质量浓度为25.0 mg/mL的粗肽液反应结束后144 h时的脂质氧化抑制率达77.86%,与GSH相比差异极显著（P<0.01）；普通条件和模拟胃液条件下,质量浓度为10.0 mg/mL的粗肽液对亚硝酸钠的清除率分别为（84.31±0.77）%和（80.97±2.00）%,与GSH相比差异极显著（P<0.01）.综上所述,诺邓火腿粗肽液具有一定的抗氧化活性和脂质氧化抑制能力,同时具有较强的亚硝酸钠清除活性.
关键词：诺邓火腿；粗肽；抗氧化活性；亚硝酸钠清除活性
Antioxidant and Sodium Nitrite Scenging Activity of Crude Peptide Extracted from Nuodeng Ham
WU Baosen1,2, GU Dahai1,2, WANG Guiying1,2, CHENG Zhibin2, XU Zhi1,2, PU Yuehong1,2, WANG Shanrong3,*, LIAO Guozhou1,2,*
（1.College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China；
2.Livestock Product Processing Engineering and Technology Research Center of Yunnan Provine, Kunming 650201, China；
3.College of Yunnan Rural Leader, Yunnan Agricultural University, Kunming 650201, China）
Abstract： In this experiment, the scenging capacities against hydroxyl and 2,2-diphenyl-1-picrylhydr-azyl （DPPH） free radicals, ferrous ion chelating activity, lipid oxidation inhibitory activity, and sodium nitrite scenging capability under normal and simulated gastric conditions of the crude peptide extracted from Nuodeng ham were investigated. Results showed that the percentage scenging of hydroxyl and DPPH free radicals by the crude peptide at 5.0 mg/mL was 47.81% and 67.10%, respectively, highly significantly different from that by glutathione （GSH） at the same concentration
（P < 0.01）. The percentage chelating of ferrous ion by the crude peptide at 5.0 mg/mL was 31.38%, not significantly different from that by GSH at the same concentration （P > 0.05）. The percentage inhibition of lipid oxidation by the crude peptide at
25.0 mg/mL at 144 h of reaction was as high as 77.86%, highly significantly different from that by glutathione （GSH） at the same concentration （P < 0.01）. Under normal and simulated gastric conditions, the percentage scavenging of sodium nitrite by the crude peptide at 10.0 mg/mL was （84.31 ± 0.77）% and （80.97 ± 2.00）%, respectively, highly significantly different from that by glutathione （GSH） at the same concentration （P < 0.01）. Collectively, we concluded that the crude peptide extracted from Nuodeng ham had antioxidant and lipid oxidation inhibitory activities, and also exhibited strong sodium nitrite scavenging capacity.
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结论：诺邓火腿粗肽抗氧化活性与亚硝酸钠清除活性为关于对不知道怎么写亚硝酸钠论文范文课题研究的大学硕士、相关本科毕业论文亚硝酸钠论文开题报告范文和文献综述及职称论文的作为参考文献资料下载。
