Isolation of Yeast Kurtzmanomyces sp. I-11, Novel Producer of Mannosylerythritol Lipid

Koji KAKUGAWA; Masahiro TAMAI; Kunihiko IMAMURA; Keiko MIYAMOTO; Shozo MIYOSHI; Yuki MORINAGA; Osamu SUZUKI; Tokichi MIYAKAWA

doi:10.1271/bbb.66.188

Microbiology & Fermentation Technology Notes

Isolation of Yeast Kurtzmanomyces sp. I-11, Novel Producer of Mannosylerythritol Lipid

Koji KAKUGAWA, Masahiro TAMAI, Kunihiko IMAMURA, Keiko MIYAMOTO, Shozo MIYOSHI, Yuki MORINAGA, Osamu SUZUKI, Tokichi MIYAKAWA

Author information

Koji KAKUGAWA
Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University
Hiroshima Prefectural Institute of Industrial Science and Technology
Present address: Hiroshima Prefectural Food Technology Research Center
Masahiro TAMAI
Hiroshima Prefectural Food Technology Research Center
Kunihiko IMAMURA
Hiroshima Prefectural Institute of Industrial Science and Technology
Present address: Western Hiroshima Prefecture Industrial Research Institute
Keiko MIYAMOTO
Hiroshima Prefectural Food Technology Research Center
Shozo MIYOSHI
Hiroshima Prefectural Institute of Industrial Science and Technology
Present address: Maruzen Pharmaceuticals Co. Ltd.
Yuki MORINAGA
Hiroshima Prefectural Institute of Industrial Science and Technology
Present address: Towa Kagaku Co. Ltd.
Osamu SUZUKI
Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University
Tokichi MIYAKAWA
Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University

Keywords: biosurfactant, mannosylerythritol lipid, Kurtzmanomyces sp. yeast

JOURNAL FREE ACCESS

2002 Volume 66 Issue 1 Pages 188-191

DOI https://doi.org/10.1271/bbb.66.188

Details

Abstract

Yeast strains were screened for producers of glycolipid-type biosurfactants from soybean oil as a sole carbon source. The structure of the glycolipid (MEL- I-11) produced by strain I-11 was analyzed. The hydrophilic sugar moiety was mannosylerythritol and the fatty acid components were C8:0 (36.4%), C12:0 (11.9%), and C14:2 (25.9%). The MEL-I-11 was identified as 6-O-acetyl-2,3-di-O-alkanoyl-β-D- mannopyranosyl-(1→4)-O-meso-erythritol. The strain I-11 was identified as a Kurtzmanomyces species, a novel producer of mannosylerythritol lipid.

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