肉类研究Issue(5)：20-24,5.
牦牛肉发酵过程中的品质变化分析
Changes in Quality Attributes during Fermentation of Yak Meat
摘要
Abstract
After marination, semitendinosus muscles from two yak breeds in China, Gannan and Sibu, were inoculated with Lactobacillus acidophilus and fermented to investigate changes in eating quality attributes and flavor compounds during the fermentation process. The results showed that as the fermentation progressed, the color became darker, and for both breeds, the L*value reached the maximum on the fifth day and then fell gradually. The hardness of Sibu yak meat was decreased by 32 543.35 g after the fermentation, the springiness was increased by 2.573 mm and the chewiness was reduced by 8 912.89 mJ, compared to an decrease in hardness of 28 668.6 g, an increase in springiness of 2.041 mm, and a reduction in chewiness of 6 685.51 mJ for Gannan yak meat. A total of 18 major flavor compounds were identified in fermented Sibu yak meat, while 21 in fermented Gannan yak meat. Alkenes, alcohols, ethers and aldehydes were responsible mainly for the unique delicate fragrance and fat composition of fermented yak meat from the two breeds.关键词
发酵牦牛肉/食用品质/TPA/风味Key words
fermented yak meat/food quality/TPA/flavor分类
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张丽,包高良,孙宝忠,魏晋梅,周玉春,王莉,余群力,谢鹏,李海鹏,刘璇..牦牛肉发酵过程中的品质变化分析[J].肉类研究,2014,(5):20-24,5.基金项目
青藏高原特色有机畜产品生产技术与产业模式（201203009）；国家现代农业（肉牛牦牛）产业技术体系建设专项（nycytx-38）；甘肃省农业生物技术研究与应用开发项目（GNSW-2012-18）；“十二五”国家科技支撑计划项目（2012BAD28B01）。 （）
