The relationship between muscle fiber characteristics, postmortem metabolic rate, and meat quality of pig longissimus dorsi muscle

被引:339
作者
Ryu, YC [1 ]
Kim, BC [1 ]
机构
[1] Korea Univ, Coll Life & Environm Sci, Div Food Sci, Seoul 136701, South Korea
关键词
muscle fiber; postmortem metabolic rate; pork quality;
D O I
10.1016/j.meatsci.2005.04.015
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The aim of this study was to investigate the histochemical parameters of muscle fibers, and to estimate the correlation of muscle fiber characteristic to postmortem metabolic rate and meat quality traits in pigs. A total of 231 crossbred pigs were evaluated. Samples of the longissimus dorsi muscle were taken to evaluate the histochemical characteristics, postmortem metabolic rate and meat quality. Fiber type composition was mainly related to postmortem metabolic rate and meat quality traits among various muscle fiber characteristics. The percentage of type IIb fiber was negatively related to pH(45min) (r = -0.33) and positively to R-value (r = 0.32). Drip loss was negatively related to fiber area percentages of type I and IIa (r = -0.25 and -0.26, respectively) and, positively related to type IIb percentage (r = 0.39). A similar tendency was found between lightness and fiber area percentage. In conclusion, increasing the percentage of type IIb fiber is related to increasing the postmortem metabolic rate, and is related to the deterioration of meat quality. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:351 / 357
页数:7
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