Open AccessScreening and Optimization of Carbon Source to Increase High Thermostabile Biosurfactant Production for Microbial Enhanced Oil Recovery (MEOR) Application
Author(s) -
Isty Adhitya Purwasena,
Dea Indriani Astuti,
N. S. Rusiwardani
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1772/1/012033
Subject(s) - pome , carbon source , chemistry , biomass (ecology) , food science , carbon fibers , energy source , pulp and paper industry , petroleum , biology , biochemistry , organic chemistry , materials science , agronomy , composite number , engineering , composite material
Petroleum, is by far, one of the world’s major energy sources. However, its production continues to decline every year. One of the effort developed to increase crude oil production is biosurfactant addition. This research aimed to optimize carbon source as substrate used to produce bacterial biosurfactant. The first stage of the study was carbon source screening with based on biosurfactant’s dry weight, IFT value, and emulsification index parameters. The carbon source candidates were crude oil, glucose, molasses, and palm oil mil effluent (POME). Screening stage of crude oil, glucose, molasses, and POME resulted in (a) biosurfactant yield of 0.58, 3.18, 1.47, and 1.38 g/L; (b) IFT decrease of 6.9, 7.7, 4.6, and 6.1 dyne/cm; and (c) emulsification index of 62.5, 72.5, 47.5, and 58.75% for respective treatments. POME was chosen as the best carbon source in consideration that it was readily available in large quantities and lower cost compared to crude oil, glucose, and molasses. Treatments of 1, 3, 5, and 7% POME treatment yielded biosurfactant in the concentrations of 1.08, 1.28, 0.7, and 0.98% g/L respectively. Treatment of 3% POME was chosen as the best concentration to stimulate biosurfactant production. Biosurfactant produced was subsequently applied to sand-pack column simulation and additional oil recovery (AOR) of 20-40% was obtained. Functional group characterization using FTIR showed that biosurfactant produced in this study belonged to lipopeptide group.