TABLE 1.

Summary of changes in crude oil viscosity, fermentation solution pH, and fermentation solution surface tension.

Crude oil viscosity (mPa⋅s)		Fermentation solution pH		Fermentation solution surface tension (mN/m)
Original	Final	Original	Final	Original	Final
2136 ± 41	1176 ± 79	7 ± 0.1	5.8 ± 0.2	73.7 ± 0.2	62.8 ± 1.4