Emulsifying Factor of Hydrocarbon Produced by a Hydrocarbon-Assimilating Yeast

Production of coenzyme Q by hydrocarbon-assimilating bacteria.

(pH 7.0) in the following medium: 5% nhexadecane (Tokyo Kasei Co., Tokyo, Japan), 0.1% KH2PO4, 0.4% (NH4)2S04, 0.05% FeSO4 7Hq0, 0.05% MgS04-7H20, and 0.4% yeast extract (Difco). A total of 10.4 g of dry cells was obtained from 2 liters of culture broth in 2 days at 30 C. The CoQ fraction was extracted as described by Lavate et al. (3). A 1-ml amount of the nonsaponifiable extract was taken up ...

Characterization and Evaluation of Light Hydrocarbon in Northwestern Iranian Crude Oil by Detailed Hydrocarbon Analysis (D.H.A)Gas Chromatography

Lighthydrocarbons are commonly used to evaluatecrude oils to determine oil families in reservoirs undergone some kind of alteration process. In this study crude oil contentsfromNorthwestern IranDelta (samples A, B and C)were analyzed in order to evaluate the IranDelta petroleum system independent of higher molecular weight markers. Ultra high resolution gas chromatography was used in separation...

Hydrocarbon Toxicity: A Review of Literature and Case Series

Emulsifying activity of a biosurfactant produced by a marine bacterium

Biosurfactants produced by biofilm-forming bacteria have great applications in biotechnology, pharmaceutical, food engineering, bioremediation, and biohydrometallurgy industries. This study aimed to find out the bacteria that produce novel exopolymers (EPSs) which can find potential role in oil biodegradation. A screening procedure was performed to detect EPS-producing bacteria. The EPS produci...

Fuzzy consequence modelling of hydrocarbon offshore pipeline

The traditional event tree analysis uses a single probability to represent each top event. However, it is unrealistic to evaluate the occurrence of each event by using a crisp value without considering the inherent uncertainty and imprecision a state has. The fuzzy set theory is universally applied to deal with this kind of phenomena. The main purpose of this study is to construct an easy metho...