FOOD SCIENCE ›› 2011, Vol. 32 ›› Issue (14): 253-256.doi: 10.7506/spkx1002-6630-201114054

• Analysis & Detection • Previous Articles     Next Articles

Evaluation of Pork Freshness by HS-SPME-GC-MS

MA Yu-lu1,ZHU Bin2,*,ZHANG Lei1,XU Xin-rong2   

  1. (1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China; 2. Analytical and Testing Center, South China University of Technology, Guangzhou 510640, China)
  • Online:2011-07-25 Published:2011-06-18

Abstract: A method to evaluate pork freshness was proposed based on the use of headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS) to analyze changes in the volatile composition of pork with different freshness. Pork samples with different freshness showed a big difference in their volatile composition. Along with the decrease in freshness, some toxic sulfides and amines were detected including methanethiol, disulfide dimethyl, dimethyl trisulfide, tetrasulfide dimethyl, indole and so on. Our results indicated that HS-SPME-GC-MS could changes in these compounds in pork, therefore providing an applicable approach to evaluate pork freshness.

Key words: headspace-solid-phase microextraction (HS-SPME), gas chromatography-mass spectrometry (GC-MS), pork, freshness

CLC Number: