2011•China BrewingRequires access

SPME-GC-MS analysis of volatile components in hops

Lumei Pu

Abstract

The volatile components of hops were extracted and analyzed by solid phase microextraction-gas chromatography-mass spectrometry method(SPME-GC-MS).The effects of different SPME fibers,extraction times and extraction temperatures on the peak areas of obtained components were investigated,The results showed that the optimal SPME extraction parameters were: polydimethylsiloxane(PDMS) fiber,extraction time 20 min and extraction temperature 60℃,by which 44 volatile components were identified,including 12 hydrocarbons and 32 oxygen-containing organic compounds.In hydrocarbons,there were 31.738% α-caryophyllene and 18.207% α-pinene.The content of hexenyl butyrate was relatively high in oxygen-containing organic compounds as 7.200%.

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Key concepts: Solid-phase microextraction, Extraction (chemistry), Chromatography, Polydimethylsiloxane, Gas chromatography–mass spectrometry, Chemistry, Mass spectrometry, Fiber