FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (12): 289-292.doi: 10.7506/spkx1002-6630-200912066

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Effects of Green Tea Extract on Preservation of Chilled Mutton

QIAO Jin-ling1,HU Yong-jin2,CAO Zhen-hui1,GE Chang-rong1,*   

  1. (1. College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China;
    2. College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China)
  • Received:2008-09-22 Revised:2009-01-03 Online:2009-06-15 Published:2010-12-29
  • Contact: GE Chang-rong1,* E-mail:gcrzal@yahoo.com.cn

Abstract:

To extend the limited shelf life of chilled mutton, which is one of the main obstacles hindering the further development of chilled meat, the effects of different concentrations of green tea extracts on the shelf-life of chilled Guishan goat meat were assessed in the present study. The results showed that the 2%, 4% and 6% green tea extracts could significantly inhibit the growth of intestinal flora, Pseudomonas and total bacteria, and the accumulation of the total volatile basic nitrogen (TVB-N) and thiobarbituric acid reactive substances (TBARs). Furthermore, the L*, a* and b* values as well as the sensory evaluation score of samples treated with 2% and 4% green tea extracts were higher than those of the control. These results suggest the high potential of using green tea extracts to enhance the freshness and quality of chilled meats.

Key words: chilled mutton, green tea extract, inhibitoryl effect, shelf life

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