中国农业科学 ›› 2012, Vol. 45 ›› Issue (16): 3363-3372.doi: 10.3864/j.issn.0578-1752.2012.16.016

• 贮藏·保鲜·加工 • 上一篇    下一篇

影响牛肉肉色稳定性的主要生化因子

 陈景宜, 牛力, 黄明, 周光宏   

  1. 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
  • 收稿日期:2011-10-24 出版日期:2012-08-15 发布日期:2012-05-25
  • 通讯作者: 通信作者黄 明,E-mail:mhuang@njau.edu.cn
  • 作者简介:陈景宜,E-mail:2009108024@njau.edu.cn
  • 基金资助:

    国家自然科学基金项目(31171706;30972133)、公益性行业科研专项(200903012)、苏北科研专项(201060090)

Major Bio-Factors Affecting Beef Color Stability

 CHEN  Jing-Yi, NIU  Li, HUANG  Ming, ZHOU  Guang-Hong   

  1. 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
  • Received:2011-10-24 Online:2012-08-15 Published:2012-05-25

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)。

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

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).

Key words: beef, color stability, LDH activity, metmyoglobin reductase activity