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dc.creatorSouza, K. S. T.-
dc.creatorSchwan, R. F.-
dc.creatorDias, D. R.-
dc.date.accessioned2014-11-27T19:12:29Z-
dc.date.available2014-11-27T19:12:29Z-
dc.date.issued2014-04-
dc.identifier.citationSOUSA, K. S. T.; SCHWAN, R. F.; DIAS, D. R. Lipid and citric acid production by wild yeasts grown in glycerol. Journal of Microbiology and Biotechnology, Seoul, v. 24, n. 4, p. 497-506, abr. 2014.pt_BR
dc.identifier.urihttp://www.jmb.or.kr/journal/view.html?book=Journal&tops=&start=0&scale=50&key=all&key_word=&Vol=24&Num=4&PG=&year1=&year2=&sort=publish_Date+desc&aut_box=Y&sub_box=Y&sos_box=&key_box=&pub_box=Y&abs_box=&mod=vol&mnum=4486pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/4687-
dc.description.abstractIn this study, crude glycerol was used as a carbon source in the cultivation of wild yeasts, aiming for the production of microbial lipids and citric acid. Forty yeasts of different sources were tested concerning their growth in crude and commercial glycerol. Four yeasts (Lidnera saturnus UFLA CES-Y677, Yarrowia lipolytica UFLA CM-Y9.4, Rhodotorula glutinis NCYC 2439, and Cryptococcus curvatus NCYC 476) were then selected owing to their ability to grow in pure (OD600 2.133, 1.633, 2.055, and 2.049, respectively) and crude (OD600 2.354, 1.753, 2.316, and 2.281, respectively) glycerol (10%, 20%, and 30%). Y. lipolytica UFLA CM-Y9.4 was selected for its ability to maintain cell viability in concentrations of 30% of crude glycerol, and high glycerol intake (18.907 g/l). This yeast was submitted to lipid production in 30 g/l of crude glycerol, and therefore obtained 63.4% of microbial lipids. In the fatty acid profile, there was a predominance of stearic (C18:0) and palmitic (C16:0) acids in the concentrations of 87.64% and 74.67%, respectively. We also performed optimization of the parameters for the production of citric acid, which yielded a production of 0.19 g/l of citric acid in optimum conditions (38.4 g/l of crude glycerol, agitation of 184 rpm, and temperature of 30°C). Yarrowia lipolytica UFLA CM-Y9.4 presented good lipid production when in the concentration of 30 g/l of glycerol. These data may be used for production in large quantities for the application of industrial biodiesel.pt_BR
dc.languageenpt_BR
dc.publisherThe Korean Society for Microbiology and Biotechnologypt_BR
dc.rightsacesso abertopt_BR
dc.sourceJournal of Microbiology and Biotechnologypt_BR
dc.subjectOleaginous yeastspt_BR
dc.subjectBiodieselpt_BR
dc.subjectFatty acidspt_BR
dc.subjectYarrowia lipolyticapt_BR
dc.titleLipid and citric acid production by wild yeasts grown in glycerolpt_BR
dc.typeArtigopt_BR
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