RRC ID 71316
Author Fukuoka T, Nakamura S, Morita T, Ohmura T, Kotani M, Naito Y, Sato H.
Title Surface-assisted Laser Desorption/ionization Mass Spectrometry Analysis of the Glycolipid Biosurfactants, Mannosylerythritol Lipids, Using an Ionization-assisting Substrate.
Journal J Oleo Sci
Abstract Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) is a promising tool for the screening of glycolipid-type biosurfactants (BSs) from a crude extract of microbial products. However, it is unsuitable for the detection of lower molecular weight products because the observed ions are overlapped with matrix-derived ions at lower mass range. In this study, we applied a "matrix-free" surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) analysis using a through-hole alumina membrane as an ionization-assisting substrate. Using this method, we could detect a variety of lower molecular weight products in an extract of a glycolipid BS producer with good sensitivity. In addition, the culture solution could be analyzed directly by this method.
Volume 70(8)
Pages 1175-1179
Published 2021-8-5
DOI 10.5650/jos.ess21084
PMID 34248100
MeSH Aluminum Oxide / chemistry Basidiomycota / metabolism Glycolipids / analysis* Glycolipids / biosynthesis Glycolipids / chemistry Mass Spectrometry / instrumentation Mass Spectrometry / methods Membranes, Artificial Molecular Weight Surface-Active Agents / analysis* Surface-Active Agents / chemistry Surface-Active Agents / metabolism
Resource
General Microbes JCM10317