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dc.contributor.authorSimões, Maria Lúcia Garcia-
dc.contributor.authorTauk-Tornisielo, Samia Maria-
dc.date.accessioned2014-05-27T11:21:53Z-
dc.date.accessioned2016-10-25T18:22:15Z-
dc.date.available2014-05-27T11:21:53Z-
dc.date.available2016-10-25T18:22:15Z-
dc.date.issued2006-06-02-
dc.identifierhttp://dx.doi.org/10.5897/AJB06.151-
dc.identifier.citationAfrican Journal of Biotechnology, v. 5, n. 11, p. 1135-1141, 2006.-
dc.identifier.issn1684-5315-
dc.identifier.urihttp://hdl.handle.net/11449/68912-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/68912-
dc.description.abstractThe objective of this research was to investigate the potential of xylanase production by Aspergillus japonicus and to determine the effects of cultivation conditions in the process, aiming toward optimization of enzyme production. The best temperature, as well as the best carbon source, for biomass production was determined through an automated turbidimetric method (Bioscreen-C). The enzyme activity of this fungus was separately evaluated in two solid substrates (wheat and soybean bran) and in Vogel medium, adding other carbon sources. Temperature effects, cultivation time, and spore concentrations were also tested. The best temperature for enzyme and biomass production was 25°C; however, the best carbon source for growth (determined by the Bioscreen C) did not turn out to be a good inducer of xylanase production. Maximum xylanase activity was achieved when the fungus was cultivated in wheat bran (without the addition of any other carbon source) using a spore concentration of 1 × 107 spores/mL (25°C, pH 5.0, 120 h). A. japonicus is a good xylanase producer under the conditions presented in these assays. © 2006 Academic Journals.en
dc.format.extent1135-1141-
dc.language.isoeng-
dc.sourceScopus-
dc.subjectAspergillus japonicusen
dc.subjectEnzyme optimizationen
dc.subjectXylanase activityen
dc.subjectcarbonen
dc.subjectxylan endo 1,3 beta xylosidaseen
dc.subjectAspergillusen
dc.subjectaspergillus japonicusen
dc.subjectbiomass productionen
dc.subjectbiosynthesisen
dc.subjectbranen
dc.subjectBrazilen
dc.subjectcarbon sourceen
dc.subjectconcentration (parameters)en
dc.subjectenzyme activityen
dc.subjectenzyme synthesisen
dc.subjectfungus isolationen
dc.subjectnonhumanen
dc.subjectsoybeanen
dc.subjectspecies cultivationen
dc.subjecttemperatureen
dc.subjectturbidimetryen
dc.subjectwheaten
dc.subjectFungien
dc.subjectGlycine maxen
dc.subjectTriticum aestivumen
dc.titleOptimization of xylanase biosynthesis by Aspergillus japonicus isolated from a Caatinga area in the Brazilian state of Bahiaen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Estadual do Sudoeste da Bahia (UESB)-
dc.description.affiliationCentro de Estudos Ambientais Universidade Estadual Paulista, Avenida 24-A, Rio Claro, SP 13506-900-
dc.description.affiliationUniversidade Estadual do Sudoeste da Bahia, Km 4, Vitória da Conquista, Bahia, CEP 45050-020-
dc.description.affiliationUnespCentro de Estudos Ambientais Universidade Estadual Paulista, Avenida 24-A, Rio Claro, SP 13506-900-
dc.identifier.doi10.5897/AJB06.151-
dc.identifier.wosWOS:000238090400022-
dc.rights.accessRightsAcesso aberto-
dc.identifier.file2-s2.0-33745041560.pdf-
dc.relation.ispartofAfrican Journal of Biotechnology-
dc.identifier.scopus2-s2.0-33745041560-
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