Biosynthesis of γ-polyglutamic acid by bacillus licheniformis through submerged fermentation (SmF) and solid-state fermentation (SSF)

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dc.contributor.authorCampos, V. [UNESP]
dc.contributor.authorKaspary, R. M. [UNESP]
dc.contributor.authorRossi, M. J.
dc.contributor.authorMedeiros, T. A.M. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal de Santa Catarina (UFSC)
dc.date.accessioned2022-04-28T19:47:08Z
dc.date.available2022-04-28T19:47:08Z
dc.date.issued2021-10-01
dc.description.abstractGamma-Polyglutamic acid (γ-PGA) was produced from fermentation processes by inoculating the bacterium Bacillus licheniformis on different substrates. In submerged fermentation (SmF), glycerol and glucose were used as the main carbon substrates while ammonium sulfate served to provide nitrogen. In solid-state fermentation (SSF), soybean was used as the main substrate. Tests carried out in an airlift bioreactor with B. licheniformis showed a maximum productivity of 0.789 g L-1 h-1 and a yield of 0.4 g g-1. Different soybean cultivars from the 2015 and 2016 crops were used in the SSF. The BRS 1001IPRO cultivar, from the 2016 crop, showed the highest production, i.e., 1.2 g L-1 of γ-PGA. This cultivar was subjected to different levels of milling (fine, intermediate and coarse). Coarsely milled grains increased γ-PGA production to 2.7 g L-1. Moreover, coarse milling made the internal nutrients of the grains available for fermentation and this particle size did not compromise aeration during fermentation.en
dc.description.affiliationSão Paulo State University (Unesp) Institute of Science and Technology, SP
dc.description.affiliationFederal University of Santa Catarina Department of Microbiology Immunology and Parasitology, SC
dc.description.affiliationUnespSão Paulo State University (Unesp) Institute of Science and Technology, SP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdCNPq: 400040/2016-6
dc.format.extent333-344
dc.identifierhttp://dx.doi.org/10.15255/CABEQ.2021.1921
dc.identifier.citationChemical and Biochemical Engineering Quarterly, v. 35, n. 3, p. 333-344, 2021.
dc.identifier.doi10.15255/CABEQ.2021.1921
dc.identifier.issn1846-5153
dc.identifier.issn0352-9568
dc.identifier.scopus2-s2.0-85118936109
dc.identifier.urihttp://hdl.handle.net/11449/222846
dc.language.isoeng
dc.relation.ispartofChemical and Biochemical Engineering Quarterly
dc.sourceScopus
dc.subjectB. licheniformis
dc.subjectBiosynthesis
dc.subjectSmF
dc.subjectSSF
dc.subjectγ-polyglutamic acid
dc.titleBiosynthesis of γ-polyglutamic acid by bacillus licheniformis through submerged fermentation (SmF) and solid-state fermentation (SSF)en
dc.typeArtigo

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