食品科学 ›› 2012, Vol. 33 ›› Issue (7): 73-77.doi: 10.7506/spkx1002-6630-201207016

• 基础研究 • 上一篇    下一篇

剪切条件下制备的肉糜中脂肪微粒的微观结构特点

朱 易1,汪张贵2,彭增起1,*,靳红果1,王蓉蓉1,姚 瑶1,张雅玮1,王复龙1   

  1. 1.南京农业大学食品科技学院 2. 蚌埠学院生物与食品科学系
  • 出版日期:2012-04-15 发布日期:2012-04-20
  • 基金资助:
    安徽省高等学校优秀青年人才基金重点项目(2012SQRL214ZD)

Microscopic Structure Properties of Fat Particles in Meat Batters Prepared under Shearing Conditions

ZHU Yi1,WANG Zhang-gui2,PENG Zeng-qi1,*,JIN Hong-guo1,WANG Rong-rong1, YAO Yao1,ZHANG Ya-wei1,WANG Fu-long1   

  1. (1. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; 2. Department of Biotechnology and Food Science, Bengbu College, Bengbu 233030, China)
  • Online:2012-04-15 Published:2012-04-20

摘要: 研究在剪切条件下制备的肉糜中脂肪微粒分布规律及微观结构特点。以猪背最长肌为原料,绞碎斩拌3min后再加入背膘斩拌5min。分别用光学显微镜和电子显微镜对肉糜和凝胶进行电镜观察。结果表明:在剪切过程中,背膘被剪切成大小形状各不相同的液态脂肪滴和固态脂肪颗粒,有的脂肪滴和脂肪颗粒能够聚集形成脂肪微粒簇。其表面都包被着一层蛋白膜,或单独地或相互交联分散在蛋白基质中。

关键词: 剪切乳化, 脂肪微粒, 透射电镜, 扫描电镜, 微观结构

Abstract: The distribution regularity and microstructure of fat particle in meat batters were investigated. Porcine longissimus muscle was used as raw material. After grinding and chopping for 3 min, the mash was chopped with pork fat for 5 min. Light microscope and electron microscope were used to observe the meat batter and the gel. The results showed that the fat was shearing into liquid fat droplets and solid fat granules of different sizes and shapes, some fat droplets and fat granules could even be aggregated into fat particle clusters. They were all covered with a layer of protein film and dispersing in the protein matrix individually or by a coalescent way.

Key words: shear emulsification, fat particle, transmission electron microscope, scanning electron microscope, microstructure

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