Production and Characterization of a Biosurfactant from Cyberlindnera samutprakarnensis JP52T

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概要

• 論文の詳細を見る

• Cyberlindnera samutprakarnensis JP52T, isolated from cosmetic industrial wastes in Thailand, was found to be an efficient biosurfactant-producing yeast when cultured in a medium containing (2% (w/v) glucose and 2% (v/v) palm oil at 30 °C, 200 rpm for 7 d. The crude biosurfactant had the ability to reduce the surface tension from 55.7 to 30.9 mN/m at 25 °C with a critical micelle concentration (CMC) of 0.046%. Physicochemical analysis of the crude biosurfactant revealed that it had wide ranges of optimum pH and pH stability at 6–9 and 3–10 respectively. It was also thermostable and retained 80% activity even after heat treatment, and it tolerated NaCl at 1.0–10%. Furthermore, it effectively emulsified various vegetable oils with an E24 value of over 80%. A partially purified biosurfactant fraction was analyzed for its structure by MALDI-TOF MS and NMR. This revealed that the biosurfactant mainly contained sophorolipids in C18-(MW 574) and C16-diaceltylated (MW 662) forms.

• 公益社団法人 日本農芸化学会の論文

著者

• Thaniyavarn Jiraporn

  Department Of Microbiology Faculty Of Science Chulalongkorn University

• PINPHANICHAKARN Pairoh

  Department of Microbiology, Faculty of Science, Chulalongkorn University

• POOMTIEN Jamroonsri

  Department of Microbiology, Faculty of Science, Chulalongkorn University

• JINDAMORAKOT Sasitorn

  Bioresources Technology Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC)

• MORIKAWA Masaaki

  Environmental Molecular Biology Laboratory, Environmental Biology Section, Faculty of Environmental Earth Science, Hokkaido University

関連論文

• Production and Characterization of Biosurfactants from Bacillus licheniformis F2.2(Microbiology & Fermentation Technology)
• Production of Sophorolipid Biosurfactant by Pichia anomala
• Production and Characterization of a Biosurfactant from Cyberlindnera samutprakarnensis JP52T

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