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| 青海大通犊牦牛肉与成年牦牛肉品质的比较 | |
| 引用本文： | 刘子溱,张玉斌,韩玲,余群力,包善科,冯宇诚.青海大通犊牦牛肉与成年牦牛肉品质的比较[J].甘肃农业大学学报,2013,48(2). |
| 作者姓名： | 刘子溱 张玉斌 韩玲 余群力 包善科 冯宇诚 |
| 作者单位： | 1. 甘肃农业大学食品科学与工程学院,甘肃兰州,730070 2. 青海省海北州畜牧兽医科学研究所,青海大通,810200 3. 青海省大通种牛场,青海大通,810100 |
| 基金项目： | 国家现代农业(肉牛牦牛)产业技术体系资助项目，国家自然基金项目资助 |
| 摘 要： | 用常规方法测定了青海大通犊牦牛肉和成年牦牛肉的产肉性能和食用品质,并研究了犊牦牛肉与成年牦牛肉在成熟过程中肌原纤维超微结构的变化.结果表明:犊牦牛肉的系水力、pH值均高于成年牦牛肉,并且失水率、熟肉率、剪切力均低于成年牦牛肉,说明青海大通犊牛肉比成年牦牛肉食用品质高;在成熟过程中,青海大通犊牦牛肉与成年牦牛肉肌原纤维发生不同程度的轻微断裂,Z线断裂,犊牦牛肉肌原纤维间的横桥交联断裂,结构模糊,说明犊牦牛肉降解效果更加明显. |
| 关 键 词： | 犊牦牛肉 成年牦牛肉 产肉性能 食用品质 超微结构 |
Study on meet quality of baby yak and adult yak from Datong County of Qinghai Pronvince |
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| LIU Zi-zhen , ZHANG Yu-bin , HAN Ling , YU Qun-li , BAO Shan-ke , FENG Yu-cheng.Study on meet quality of baby yak and adult yak from Datong County of Qinghai Pronvince[J].Journal of Gansu Agricultural University,2013,48(2). | |
| Authors: | LIU Zi-zhen ZHANG Yu-bin HAN Ling YU Qun-li BAO Shan-ke FENG Yu-cheng |
| Abstract: | Meat production performance and eating quality of baby yak and adult yak from Datong County of Qinghai Province were determined by conventional methods,and ultrastructural changes of muscle fibrils of meat were studied.The results showed that the water holding capacity and pH value of baby yak were both higher than those of adult yak,while water loss rate,cooking holding rate and shearing force of baby yak were all lower than those of adult yak,which indicated higher eating quality of baby yak.During ripening process,muscle fibrils of both meat were slightly broken and Z-line fractured,and the cross-bridge between muscle fibrils of baby yak broken,and with fuzzy structure,this meant degradation effect of baby yak meat was more obviously. |
| Keywords: | meat of baby yak meat of adult yak meat productivity eating quality ultrastructure |
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