論文 - 詳細
| RRC ID | 29351 |
|---|---|
| 著者 | Yamamoto S, Fukuoka T, Imura T, Morita T, Yanagidani S, Kitamoto D, Kitagawa M. |
| タイトル | Production of a novel mannosylerythritol lipid containing a hydroxy fatty acid from castor oil by Pseudozyma tsukubaensis. |
| ジャーナル | J Oleo Sci |
| Abstract |
Mannosylerythritol lipids (MELs) are glycolipid biosurfactants produced by various yeasts belonging to the genus Pseudozyma, which exhibit excellent surface activities as well as versatile biochemical activities. A study on P. tsukubaensis NBRC1940 as a mono-acetylated MEL (MEL-B) producer revealed that the yeast accumulated a novel glycolipid from castor oil at a yield of 22 g/L. Its main chemical structure was identified as 1-O-β-(2'-O-alka(e)noyl-3'-O-hydroxyalka(e)noyl-6'-O-acetyl-D-mannopyranosyl)-D-erythritol designated as "new MEL-B." The new MEL-B, comprising a hydroxy fatty acid had a reduced surface tension of 28.5 mN/m at a critical micelle concentration (CMC) of 2.2×10⁻⁵ M in water. The observed CMC was 5-fold higher than that of conventional MEL-B. When conventional MEL-B was dispersed in water, it self-assembled to form the lamellar (L(α)) phase at a wide range of concentrations. In contrast, new MEL-B formed spherical oily droplets similar to the sponge (L₃) phase, which is observed in aqueous solutions of di-acetylated MEL (MEL-A). The data suggest that the newly identified MEL-B is likely to have a different structure and interfacial properties compared to the conventional MELs, and could facilitate an increase in the application of glycolipid biosurfactants. |
| 巻・号 | 62(6) |
| ページ | 381-9 |
| 公開日 | 2013-1-1 |
| DOI | 10.5650/jos.62.381 |
| PII | DN/JST.JSTAGE/jos/62.381 |
| PMID | 23728329 |
| MeSH | Basidiomycota / metabolism* Castor Oil / metabolism* Fatty Acids / chemistry* Glycolipids / biosynthesis* Glycolipids / chemistry* Micelles Surface Tension Surface-Active Agents* Water |
| IF | 1.304 |
| 引用数 | 10 |
| WOS 分野 | FOOD SCIENCE & TECHNOLOGY CHEMISTRY, APPLIED |
| オルトメトリクス指標 |
オルトメトリクス指標項目
|
| 最多言及媒体 | Patent(IFI CLAIMS) |
| 各媒体での言及数の合計 | 4 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| 一般微生物 | JCM 10317 |