Isolation and characterization of bacterial producers of optically pure D(-) and L(+) lactic acid

dc.creatorBernardo, Marcela Piassi
dc.creatorCoelho, Luciana Fontes
dc.creatorLima, Cristian J. Bolner de
dc.creatorRodovalho, Cynara de Melo
dc.creatorOliveira, Paola Monteiro de
dc.creatorPaula, Fabrício C. de
dc.creatorContiero, Jonas
dc.date2018-07-03T16:30:17Z
dc.date2018-07-03T16:30:17Z
dc.date2013
dc.date.accessioned2023-09-26T23:46:03Z
dc.date.available2023-09-26T23:46:03Z
dc.identifierBERNARDO, Marcela Piassi; et al. Isolation and characterization of bacterial producers of optically pure D(-) and L(+) lactic acid. African Journal of Microbiology Resaerch, v.7, n.21, p.2618-2628, May 2013.
dc.identifier1996-0808
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/27242
dc.identifier10.5897/AJMR2013.5388
dc.identifier1996-0808
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8893989
dc.descriptionThe aim of the present study was to isolate and characterize bacterial producers of optically pure D(-) and L(+) lactic acid for use in the synthesis of polymers employed in the production of resistive and biodegradable materials. Four hundred microorganisms were isolated. Of these strains, 20 had high capacity for production of only one lactic acid isomer which was selected for characterization. D(-) lactic acid producers were identified as Weissella paramesenteroides (25%), Leuconostoc mesenteroides (6.25%), Leuconostoc lactis (6.25%) and Lactobacillus delbrueckii (6.25%). L(+) lactic acid producers were identified as Lactobacillus casei (12.5%), Enterococcus sp. (18.75%), Lactobacillus paracasei (6.25%), Streptococcus sp. (6.25%) and Lactobacillus sp. (12.5%). The most promising isolate for L(+) lactic acid production was Ke8, in the presence of sucrose. Otherwise, Ke6 and Ke11 were the best producers, by using glucose as the carbon source. The best microorganism for the production of D(-) lactic acid was isolated from fermented milk (L. delbrueckii Y15C). However, the growth of this microorganism is easily inhibited on media containing sugar concentration greater than 60 g/L.
dc.formatapplication/pdf
dc.languageeng
dc.publisherAcademic Journals
dc.rightsopen access
dc.subjectLactic acid bacteria
dc.subjectIdentificação
dc.subjectCaracterização
dc.subjectOptimização
dc.subjectÁcido Láctico
dc.subjectfonte de carbono
dc.subjectLactic acid bacteria
dc.subjectdentification
dc.subjectcharacterization
dc.subjectcarbon sources
dc.subjectlactic acid
dc.subjectoptimization
dc.titleIsolation and characterization of bacterial producers of optically pure D(-) and L(+) lactic acid
dc.typeArticle


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