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Selectivity optimization for the capillary gas chromatographic analysis of bacterial cellular fatty acids

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Summary

The importance of selectivity in the capillary gas chromatographic analysis of the cellular fatty acids of micro-organisms is underestimated. The analysis on apolar silicone phases can lead to erratic elucidation of the fatty acid structure. Qualitative errors have been detected in commercially available standards on which computer matching identification techniques are based. Using highly polar capillary columns of the cyanopropyl silicone type, the errors could be elucidated. The exact identification of the hydrolysis products of bacteria is a must for chemotaxonomic studies applying chromatographic techniques. The fatty acid methyl ester profiles can also contain other chemical components which are very important taxonomic markers. Fatty aldehydes, for example, are main components in someClostridium species. Fractionation techniques are described for selective enrichment of fatty aldehydes and hydroxy fatty acids.

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Authors and Affiliations

  1. Laboratory for Medical Biology, Loofstraat, B-8500, Kortrijk, Belgium

    F. Vannieuwenhuyze

  2. Research Institute for Chromatography, P. O. Box 91, B-8610, Wevelgem, Belgium

    P. Sandra

Authors
  1. F. Vannieuwenhuyze
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  2. P. Sandra
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Dedicated to Prof. Dr. A Liberti on the occasion of his 70th birthday

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Vannieuwenhuyze, F., Sandra, P. Selectivity optimization for the capillary gas chromatographic analysis of bacterial cellular fatty acids. Chromatographia 23, 850–855 (1987). https://doi.org/10.1007/BF02311412

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  • DOI: https://doi.org/10.1007/BF02311412

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