%0 Journal Article
	%A M. P. Casiraghi and  C. M. Quintella and  P. Almeida
	%D 2015
	%J International Journal of Geological and Environmental Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 98, 2015
	%T LIFirr with an Indicator of Microbial Activity in Paraffinic Oil
	%U https://publications.waset.org/pdf/10001059
	%V 98
	%X Paraffinic oils were submitted to microbial action. The
microorganisms consisted of bacteria of the genera Pseudomonas sp.
and Bacillus lincheniforms. The alterations in interfacial tension were
determined using a tensometer and applying the hanging drop
technique at room temperature (299 K ±275 K). The alteration in the
constitution of the paraffins was evaluated by means of gas
chromatography. The microbial activity was observed to reduce
interfacial tension by 54 to 78%, as well as consuming the paraffins
C19 to C29 and producing paraffins C36 to C44. The LIFirr technique
made it possible to determine the microbial action quickly.

	%P 195 - 199