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Properties of a biosurfactant produced by Bacillus pumilus using vinasse and waste frying oil as alternative carbon sources BABT
Oliveira,Juliana Guerra de; Garcia-Cruz,Crispin Humberto.
Biosurfactants are chemical molecules produced by the microorganisms with potential for application in various industrial and environmental sectors. The production parameters and the physicochemical properties of a biosurfactant synthesized by Bacillus pumilus using different concentrations of vinasse and waste frying oil as alternative carbon sources were analyzed. The microorganism was able to grow and produce a biosurfactant using both the residues. The surface tension was reduced up to 45 mN/m and the maximum production of crude biosurfactant was 27.7 and 5.7 g/l for vinasse and waste frying oil, respectively, in concentration of 5%. The critical micelle concentration (CMC) results of 1.5 and 0.2 g/l showed the efficiency of the biosurfactant produced...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biosurfactants; Vinasse; Waste frying oil; Bacillus pumilus.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000100020
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Variation analysis of bacterial polyhydroxyalkanoates production using saturated and unsaturated hydrocarbons BJM
Tufail,Saiqa; Munir,Sajida; Jamil,Nazia.
ABSTRACT Polyhydroxyalkanoates (PHA) are efficient, renewable and environment friendly polymeric esters. These polymers are synthesized by a variety of microbes under stress conditions. This study was carried out to check the suitability of waste frying oil in comparison to other oils for economical bioplastic production. Six bacterial strains were isolated and identified as Bacillus cereus (KF270349), Klebsiella pneumoniae (KF270350), Bacillus subtilis (KF270351), Brevibacterium halotolerance (KF270352), Pseudomonas aeruginosa (KF270353), and Stenotrophomonas rhizoposid (KF270354) by ribotyping. All strains were PHA producers so were selected for PHA synthesis using four different carbon sources, i.e., waste frying oil, canola oil, diesel and glucose....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Waste frying oil; Polyhydroxyalkanoates; Fluorescence microscopy; FTIR.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000400629
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