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Updated: Jul 9, 2025

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Published on: March 29, 2024
Structural characterization of a nonionic rhamnolipid from Burkholderia lata
Charles Gauthier1, Serge Lavoie2, Sonja Kubicki3
1Unité Mixte de Recherche INRS-UQAC, Institut National de la Recherche Scientifique (INRS), 555, boulevard de l'Université, Chicoutimi, Québec, G7H 2B1, Canada; Centre de recherche sur la boréalie (CREB), Laboratoire LASEVE, Département des Sciences Fondamentales, Université du Québec à Chicoutimi (UQAC), 555, boulevard de l'Université, Chicoutimi, Québec, G7H 2B1, Canada; Centre Armand-Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), 531, boulevard des Prairies, Laval, Québec, H7V 1B7, Canada.
Abstract:
We present the isolation and structural characterization of a novel nonionic dirhamnolipid methyl ester produced by the bacterium Burkholderia lata. The structure and the absolute configuration of the isolated dirhamnolipid bearing a symmetrical C14-C14 methyl ester chain were thoroughly investigated through chemical degradation and spectroscopic methods including 1D and 2D NMR analysis, HR-ESI-TOF-MS, chiral GC-MS, and polarimetry. Our work represents the first mention in the literature of a rhamnolipid methyl ester from Burkholderia species.
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