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- W77966443 abstract "Biosurfactant producing microorganisms were isolated from oil contaminated soils collected from Songkhla and Chiangmai province, Thailand and Shianghai, China. Their culture broths were screened for obtaining biosurfactants with the highest surface activity and emulsification ability. Among 102 isolates, 6 microorganisms produced biosurfactants. The culture supernatant of SK80 strain exhibited the highest surface activity. SK80 was identified by macroscopic morphology, microscopic morphology and showed that it is a black mold. The 28S rRNA sequence homology analysis suggested that SK80 belongs to Exophiala dermatitidis. The composition of culture medium such as carbon source, nitrogen source, and culture condition of this microorganism was optimized to obtain high amounts of biosurfactant. 1H NMR, 13C NMR, COSY and Mass Spectrometer (APCI MS) results indicated that this biosurfactant was monoolein (oleoyl glycerol), a kind of monoacylglycerol. Monomyristin was chosen as a monoacylglycerol model to be synthesized and used as nanoparticle encapsulated drug. Two preparation methods, emulsion/solvent evaporation and nanoprecipitation, were used to encapsulate monomyristin in dextran-covered nanoparticles with poly(lactic acid) of hydrophobized dextran as the core material. Encapsulation conditions were optimized with regard to the yield encapsulation and the colloidal stability" @default.
- W77966443 created "2016-06-24" @default.
- W77966443 creator A5081453526 @default.
- W77966443 date "2010-02-22" @default.
- W77966443 modified "2023-09-27" @default.
- W77966443 title "Isolation and structure elucidation of biosurfactant from microorganism and its application model in drug delivery system" @default.
- W77966443 hasPublicationYear "2010" @default.
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