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Chemical Composition of Ethanol-Extractable Fraction of Soybean Dreg

GONG Gui-zhen, SUN Cong-yan   

  1. College of Chemical Engineering, Xuzhou Institute of Technology, Xuzhou 221111, China
  • Online:2014-06-25 Published:2014-07-03

Abstract:

The ethanol-extractable fraction of soybean dreg extracted by Soxhlet extraction was analyzed by Fourier transform
infrared (FTIR) spectrometer and gas chromatography-mass spectrometer (GC-MS) for molecular structure and chemical
composition. In total, 35 compounds were identified from the ethanolic extract, including alkanes, alkenes, arenes, aldehydes,
acids, esters, and other compounds. Nine aldehydes were identified and they were found to be the most abundant compounds with
a relative content of 66.8%. This research is of significance in the high added value utilization of soybean dreg.

Key words: soybean dreg, extraction, Fourier transform infrared (FTIR), gas chromatography-mass spectrometry (GC-MS)

CLC Number: