HRGC‐MS and HPLC‐MS identification of new ketosterols in an extract of wheat straw

Higuinaldo J. Chaves das Neves; Elvira M.M.S. Gaspar

doi:10.1002/jhrc.1240180507

HRGC‐MS and HPLC‐MS identification of new ketosterols in an extract of wheat straw

Higuinaldo J. Chaves das Neves, Elvira M.M.S. Gaspar

DQ - Departamento de Química

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

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 language	English
Pages (from-to)	299-303
Number of pages	5
Journal	Journal of High Resolution Chromatography
Volume	18
Issue number	5
DOIs	https://doi.org/10.1002/jhrc.1240180507
Publication status	Published - May 1995

Keywords

Allelopathy
HPLC‐MS
HRGC‐MS
Ketosterols
Sterols
Wheat straw

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10.1002/jhrc.1240180507

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title = "HRGC‐MS and HPLC‐MS identification of new ketosterols in an extract of wheat straw",

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.",

keywords = "Allelopathy, HPLC‐MS, HRGC‐MS, Ketosterols, Sterols, Wheat straw",

author = "{Chaves das Neves}, {Higuinaldo J.} and Gaspar, {Elvira M.M.S.}",

year = "1995",

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AU - Chaves das Neves, Higuinaldo J.

AU - Gaspar, Elvira M.M.S.

PY - 1995/5

Y1 - 1995/5

N2 - 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.

AB - 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.

KW - Allelopathy

KW - HPLC‐MS

KW - HRGC‐MS

KW - Ketosterols

KW - Sterols

KW - Wheat straw

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M3 - Article

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VL - 18

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JO - Journal of High Resolution Chromatography

JF - Journal of High Resolution Chromatography

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ER -

HRGC‐MS and HPLC‐MS identification of new ketosterols in an extract of wheat straw

Abstract

Keywords

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