Authors: Yasushi Kawakami Hajime Nishimura
Publish Date: 1981/03/01
Volume: 37, Issue: 1, Pages: 1-7
Abstract
Bacterial degradation of the hydrocarbons of lubricating oils was investigated by mass spectrometric analysis which gives both total amount and the composition of hydrocarbon types of residual oil An unused lubricating oil which mainly consisted of hydrocarbon types with only a small percentage ofnalkanes was degraded by marineBacillus sp andPseudomonas sp with 55 and 25 decreases in 10 days respectively Susceptibility of respective hydrocarbon types to biodegradation was in the following order alkanes noncondensed cycloalkanes monoaromatics condensed cycloalkanes A used lubricating oil of different brand showed a larger decrease than the unused oil Both species of bacteria degraded large portions of alkane fraction of Arabian light crude oil
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