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Analysis of Volatile Aroma Compounds of Ready-to-Eat Spiced Beef by HS-SPME-GC-MS

LIU Qian, SHEN Mingyue, NIE Shaoping*, JIANG Yujie, MEI Jiang, LIU Lingling, WANG Yuting   

  1. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
  • Online:2015-11-25 Published:2015-12-03
  • Contact: NIE Shaoping

Abstract:

The volatile compounds of ready-to-eat spiced beef were determined by headspace solid phase micro-extraction
(HS-SPME) and gas chromatography-mass spectrometer (GC-MS). Several key parameters influencing the extraction
efficiency were optimized. The optimal extraction conditions were achieved when 3 g of the sample in the headspace glass
vial with addition of 0.6 g NaCl was extracted for 30 min at 60 ℃ with a stirring speed of 220 r/min, followed by 5 min
desorption in the GC inlet at 250 ℃. As a result, a total of 39 aroma compounds were extracted from the cold beef sample,
the contents of phenols and hydrocarbons were 46.15% and 24.99%, respectively, which were the main volatile aroma
compounds of ready-to-eat spiced beef. The volatile composition and contribution to the aroma of ready-to-eat spiced beef
established in this study can provide a guideline for optimizing the production process.

Key words: ready-to-eat spiced beef, volatile compounds, headspace solid phase microextraction (HS-SPME), gas chromatography-mass spectrometer (GC-MS), retention index (RI)

CLC Number: