| 影响牛肉肉色稳定性的主要生化因子 |
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| 引用本文： | 陈景宜,牛力,黄明,周光宏.影响牛肉肉色稳定性的主要生化因子[J].中国农业科学,2012,45(16):3363-3372. |
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| 作者姓名： | 陈景宜 牛力 黄明 周光宏 |
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| 作者单位： | 南京农业大学食品科技学院/教育部肉品加工与质量控制重点实验室，南京 210095 |
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| 基金项目： | 国家自然科学基金，公益性行业科研专项，苏北科研专项 |
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| 摘 要： | 【目的】探讨影响不同部位的牛肉肉色稳定性差异的主要生化因素。【方法】从8头牛胴体上分别取背最长肌、半膜肌和腰大肌，在0-4℃冷藏7 d，每隔1 d分别测定肉色、色素含量、pH、MDA含量、NADH浓度、乳酸脱氢酶和高铁肌红蛋白还原酶活性等指标。【结果】背最长肌在整个冷藏期间的a*值最高且变化最小，MDA含量最少，NADH浓度、乳酸脱氢酶和高铁肌红蛋白还原酶活性最高，肉色最稳定；半膜肌居中，而腰大肌的a*值最小，变化最显著，MDA含量最高，NADH浓度、乳酸脱氢酶和高铁肌红蛋白还原酶活性最低，肉色最不稳定。【结论】牛肉肉色稳定性与其NADH浓度、乳酸脱氢酶和高铁肌红蛋白还原酶活性显著相关（P＜0.05）。
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| 关 键 词： | 牛肉 肉色稳定性 乳酸脱氢酶活性 高铁肌红蛋白还原酶活性 |
| 收稿时间： | 2011-10-24 |
Major Bio-Factors Affecting Beef Color Stability |
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| CHEN Jing-yi
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NIU Li
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HUANG Ming
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ZHOU Guang-hong.Major Bio-Factors Affecting Beef Color Stability[J].Scientia Agricultura Sinica,2012,45(16):3363-3372. |
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| Authors: | CHEN Jing-yi NIU Li HUANG Ming ZHOU Guang-hong |
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| Institution: | (College of Food Science and Technology,Nanjing Agricultural University/ Key Laboratory of Meat Processing and Quality Control,Ministry of Education,Nanjing 210095) |
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| Abstract: | 【Objective】The experiment was designed to investigate the major bio-factors affecting color stability from different bovine muscles.【Method】Three representative bovine muscles– M.longissimus lumborum(LL),M.semimembranosus(SM),and M.psoas major(PM) were obtained from 8 beef carcasses.Instrumental color,pigment content,pH value,MDA content,NADH concentration,LDH and metmyoglobin reductase activity were measured every two days over a period of 7d retail display at 0-4℃.【Result】The order of color stability of the three muscles was:LL>SM>PM.The a* value,NADH concentration,LDH and metmyoglobin reductase activity was the highest in LL and the MDA content was the least.While the a* value,NADH concentration,LDH and metmyoglobin reductase activity of PM was the lowest and MDA content was the highest.【Conclusion】NADH concentration,LDH and metmyoglobin reductase activity in beef muscle have a significant correlation with color stability(P<0.05). |
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| Keywords: | beef color stability LDH activity metmyoglobin reductase activity |
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