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Biodiesel has been gaining increased attention as a nontoxic, biodegradable and renewable new green alternative diesel fuel. Production of biodiesel can be synthesized by chemical or by lipase methods, while lipase method has more advantages compared to chemical synthetic method. In this article, the microbial strains with activity of lipase were isolated from long time oil-contaminated soil and strain...
An experimental study was conducted that promoted the efficiency of anaerobic digestion by hydrolyzing pig manure in advance with amylase before loading it into the digester. A modified Gompertz equation was applied to determinate the kinetic parameters of biogas production. The results showed that the removal percentage of TS and VS, the biogas production potentials and rates have been improved through...
8 strains producing lipase were isolated from soil with rich oil. Among them strain BD3 producing lipase was more powerful. Strain BD3 was identified as Pseudomonas sp according to its morphology, physiological, biochemical properties. We utilized PVA(polyvinyl alcohol) and Boric Acid as the vector of immobilized cells of Strain BD3, and have studied transesterification at the same time. We found...
The isolation and identification of a hyper-cellulytic fungus for cellulase gene selection was carried out as the initial stages in the production of a recombinant micro-organism. This would be capable of Consolidated BioProcessing (CBP) of cellulosic material to ethanol in single stage fermentations. With the selection of an organism with high cellulytic rate, the construction of a cellulytic ethanogen...
The need of alternative energy source has intensified the efforts to produce bio-ethanol and study the efficiency of its industrial processes using microorganisms. Our work intends to study and analyze the alcohol producing pathways of bacteria, signifying the importance of regulatory sequence, on genomic level. Zymomonas mobilis, considered as a potent future organism for alcohol production, was...
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