Analysis of Volatile Compounds from Irradiated Yeast Extract by Headspace Solid Phase Micro-Extraction Coupled with Gas Chromatography-Mass Spectrometry

doi:10.7506/spkx1002-6630-201406011

Abstract

Abstract:

A method for determining volatile compounds from irradiated yeast extract using headspace solid phase
microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) was developed in this paper. The
results showed that 13 volatile compounds were detected from unirradiated yeast extract including 1 acid, 2 aldehydes, 2
alcohols, 1 alkene and 3 nitrogen compounds and the major compounds were acetic acid, indole and 2-ethyl-1-hexanol.
Totally 35 volatile compounds including 1 acid, 7 aldehydes, 2 alcohols, 4 alkenes, 2 ketones, 14 nitrogen compounds, 2
sulfur compounds, 1 ester and 2 benzenes were detected from irradiated yeast extract. The number and contents of volatile
compounds increased with increasing irradiation dosage.

Key words: yeast extract, headspace solid phase microextraction (HS-SPME), gas chromatography-mass spectrometry (GCMS), volatile compounds, irradiation

CLC Number:

TS202
TL99

GENG Sheng-rong, XIA He-zhou, ZU Xiao-yan, CHEN Yu-xia, YE Li-xiu, XIONG Guang-quan*. Analysis of Volatile Compounds from Irradiated Yeast Extract by Headspace Solid Phase Micro-Extraction Coupled with Gas Chromatography-Mass Spectrometry[J]. FOOD SCIENCE, 2014, 35(6): 55-59.

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