Biosurfactant production using mixed cultures under non-aseptic conditions

C. Vipulanandan, G. L. Ghurye, Richard C. Willson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


Surfactants increase the accessibility of adsorbed hydrocarbons and mobilize immiscible petroleum hydrocarbons for treatment. Biosurfactants have the advantage of biodegradability and non-toxicity over their synthetic counterparts, and can be produced from renewable sources. In this study the production of biosurfactant from molasses was investigated in continuously stirred batch reactors. The effects of substrate concentration, yeast extract and peptone on biomass accumulation and biosurfactant production were investigated. Biosurfactant production was quantified by surface tension reduction and critical micelle dilution (CMD). Biosurfactant production was directly correlated with biomass production, and was improved with the addition of yeast extract. Centrifugation of the whole broth reduced surface tension. The performance of the biosurfactant produced from molasses under non-aseptic condition is comparable to other published results.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
PublisherMaterials Research Society
Number of pages8
StatePublished - 1994
EventProceedings of the 1994 MRS Spring Meeting - San Francisco, CA, USA
Duration: Apr 4 1994Apr 8 1994


OtherProceedings of the 1994 MRS Spring Meeting
CitySan Francisco, CA, USA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials


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