Characterization of volatile compounds in Fen-Daqu - a traditional Chinese liquor fermentation starter

L. Van-Diep, X. Zheng, J.Y. Chen, B.Z. Han

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18 Citations (Scopus)


Fen-Daqu is a saccharifying agent and fermentation starter for the production of Chinese liquor Fen (alcoholic spirit) and Fen traditional vinegar. The volatile compounds produced at seven incubation steps were analysed by HS-SPME-GC-MS. A total of 83 major volatile compounds were identified, including 23 esters, 8 acids, 24 alcohols, 18 ketones and aldehydes, 6 pyrazines and 4 acetals. Data obtained by HS-SPME-GC-MS were subjected to principal component analysis. The trajectory plots of volatile compounds in Fen-Daqu samples obtained during successive steps of incubation were revealed. The major compounds that contributed to discrimination were hexanal, (E)-2-octenal, (Z)-2-octen-1-ol, nonanoic acid, 1-octanol, 2-decen-1-ol, hexyl acetate, (E)-2-octen-1-ol, acetic acid, ethyl acetate, phenylethyl alcohol, ethyl alcohol, octanoic acid, 1-octanol, 3-methyl-2-buten-1-ol and pyrazines.
Original languageEnglish
Pages (from-to)107-113
JournalJournal of the Institute of Brewing
Issue number1
Publication statusPublished - 2012


  • solid-phase microextraction
  • gas-chromatography-olfactometry
  • mass-spectrometry
  • dilution analysis
  • aroma compounds
  • flavor liquor
  • juices


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