HRGC-MS and HPLC-MS identification of new ketosteroids in an extract of wheat straw

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Abstract

An ethereal extract of wheat (Triticum aestivum) straw with a positive biological assay for allelopathic activity, has been analyzed by HRGC. By means of HRGC‐MS the extract composition was assessed as a complex mixture of organic acids and sterolic compounds. The sterolic fraction was subsequently separated and further studied by HRGC‐MS and HPLC‐MS. Among the thirty seven components identified, some described for the first time in wheat straw, two new ketostero's were characterized by means of their MS spectra. The potential of the particle‐beam (PB) interface in HPLC‐MS studies of unknown mixtures is exemplified and compared with that of HRGC‐MS.
Original languageEnglish
Pages (from-to)299-303
Number of pages5
JournalHRC Journal of High Resolution Chromatography
Volume18
Issue number5
DOIs
Publication statusPublished - May 1995

Keywords

  • HRGC‐MS
  • HPLC‐MS
  • Wheat straw
  • Ketosterols
  • Sterols
  • Allelopathy

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