Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/942711
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dc.contributor.authorPAULO, E. M.pt_BR
dc.contributor.authorBOFFO, E. F.pt_BR
dc.contributor.authorBRANCO, A.pt_BR
dc.contributor.authorVALENTE, A. M. M. P.pt_BR
dc.contributor.authorMELO, I. S. dept_BR
dc.contributor.authorFERREIRA, A. G.pt_BR
dc.contributor.authorROQUE, M. R. de A.pt_BR
dc.contributor.authorASSIS, S. A. dept_BR
dc.date.accessioned2012-12-14T11:11:11Zpt_BR
dc.date.available2012-12-14T11:11:11Zpt_BR
dc.date.created2012-12-14pt_BR
dc.date.issued2012pt_BR
dc.identifier.citationAnais da Academia Brasileira de Ciências, Rio de Janeiro, v. 84, n. 2, p. 495-507, 2012.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/942711pt_BR
dc.descriptionABSTRACT: The genus Leuconostoc belongs to a group of lactic acid bacteria usually isolated from fermented vegetables, which includes species involved in the production of exopolysaccharides (EPS). These biopolymers possess considerable commercial potential. Because of the wide variety of industrial applications of EPS, this study aimed to produce and characterize the native exopolysaccharide strain Leuconostoc pseudomesenteroides R2, which was isolated from cabbage collected in a semi-arid region of Bahia. We employed the following conditions for the production of EPS: 10.7% sucrose, pH 8.2, without agitation and incubation at 28°C for 30 hours. The fermentation broth was treated with ethanol and generated two types of polysaccharide substances (EPS I and EPS II). The identification of EPS I and EPS II was conducted using FT-IR, 1H, 13C and DEPT-135 NMR spectra. The two substances were identified as linear dextran ? polysaccharides (1 ? 6) which indicated different characteristics with respect to thermal analysis and density of free packaging, viscosity and time of solubilization. Both dextrans are of low density, possess high thermal stability and exhibited the behavior characteristic of pseudoplastic polymers.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectExopolysaccharidept_BR
dc.subjectPolymerpt_BR
dc.titleProduction, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2012-12-14T11:11:11Zpt_BR
dc.subject.thesagroBactériapt_BR
dc.subject.nalthesaurusLeuconostoc pseudomesenteroidespt_BR
dc.subject.nalthesaurusBiopolymerspt_BR
dc.subject.nalthesaurusdextranpt_BR
riaa.ainfo.id942711pt_BR
riaa.ainfo.lastupdate2012-12-14pt_BR
dc.contributor.institutionELINALVA M. PAULO, UEFS; ELISANGELA F. BOFFO, UFBA; ALEXSANDRO BRANCO, UEFS; ÂNGELA M. M. P. VALENTE; ITAMAR SOARES DE MELO, CNPMA; ANTONIO G. FERREIRA, UFSCar; MILTON R. A. ROQUE, UFBA; SANDRA A. DE ASSIS, UEFS.pt_BR
Appears in Collections:Artigo em periódico indexado (CNPMA)

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