Scientia Agricultura Sinica ›› 2008, Vol. 41 ›› Issue (3): 918-924 .doi: 10.3864/j.issn.0578-1752.2008.03.039

• RESEARCH NOTES • Previous Articles     Next Articles

Analysis of Off-odor Volatiles of Irradiated Vacuum-packaged Refrigerated Pork

  

  1. 湖北省农业科学院辐照加工研究所
  • Received:2006-06-29 Revised:2007-02-06 Online:2008-03-10 Published:2008-03-10

Abstract: Abstract: [Objective] The purpose of this study was to lay a foundation for our study on the generation mechanism of off-odor in irradiated meat and the removal method. [Method] The main composition of off-odor volatiles of irradiated refrigerated vacuum-packaged pork is analyzed by gas chromatograph mass spectrometry (GC-MS). The off-odor volatiles were collected by a cooled via in liquid nitrogen, that via was connected to vacuum system. [Result] The main composition of off-odor volatiles are dimethyl disulfide, dimethyl sulfide, dimethyl trisulfide, S-methyl thioacetate and methanethiol. The off-odor volatiles come from Irradiated Cystine, Methionine and VB1. [Conclusion] The main composition of off-odor volatiles are S-containing composition that come from irradiated S-containing Amino acid and VB1.

Key words: Irradiation, Pork, Off-odor, GC-MS

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