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De-emulsification of oil-in-water emulsions byBacillus subtilis

โœ Scribed by K.L. Janiyani; H.J. Purohit; R. Shanker; P. Khanna

Publisher
Springer
Year
1994
Tongue
English
Weight
393 KB
Volume
10
Category
Article
ISSN
1573-0972

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โœฆ Synopsis

Bacillus subtilis grown on glucose produced a de-emulsifier that broke down model oil-in-water emulsions. The deemulsification increased with contact time and the recovery of oil was 98% with 0.6 mg de-emulsifier/ml emulsion. GLC and i.r. analysis of the molecule extracted from cell-free broth demonstrated that the de-emulsifier was acetoin. It may be better to use acetoin, a metabolite of glucose metabolism, to recover oil from oily sludges instead of microbial cells, because of its stability and de-emulsification activity.

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