Bioconversion of low-cost brewery waste to biosurfactant: an improvement of surfactin production by culture medium optimization

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dc.citation.issue108058pt_BR
dc.citation.volume172pt_BR
dc.contributor.authorCorrêa Nazareth, Talita
dc.contributor.authorPlanas Zanutto, Conrado
dc.contributor.authorMaass, Danielle [UNIFESP]
dc.contributor.authorUlson de Souza, Antônio Augusto
dc.contributor.authorGuelli Ulson de Souza, Selene Maria de Arruda
dc.contributor.authorLatteshttp://lattes.cnpq.br/3431482044015696pt_BR
dc.coverage.spatialJapãopt_BR
dc.date.accessioned2022-01-05T11:15:33Z
dc.date.available2022-01-05T11:15:33Z
dc.date.issued2021-05-11
dc.description.abstractTrub is the second-largest residue from brewing industry (250 thousand tons/year) and, due to the presence of high amounts of carbon and nitrogen, it is a potential source of reducing sugars and nitrogen for biological processes. Therefore, this work aimed to enhance surfactin production by B. subtilis using Trub as a carbon source. The effect of nitrogen sources on biosurfactant production was investigated by a Full Factorial Design (2²). Yeast extract and its interaction with peptone presented a statistically significant effect on the response variable of surface tension (ST). ST was described by a linear regression model (R² = 0.93). The effect of metals supplementation on the culture medium was also investigated, where the volumetric productivity increased from 2.98 to 7.43 mg.L-1.h-1 for the medium without (M-I) and with metals (M-II), respectively. After 28h, 210.11 mg.L-1 was obtained in the batch culture with MII medium, being higher than the maximum surfactin concentration achieved after 52 h (121.80 mg.L-1) for M-I medium. The biosurfactant production in bioreactor was successfully performed since a concentrated extract was obtained in the foam collected, reaching the maximum of 1118.20 mg.L-1 of surfactin.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipID2019/07659-4pt_BR
dc.format.extent1-10pt_BR
dc.identifier.citationTalita Corrêa Nazareth; Conrado Planas Zanutto; Danielle Maass; Antônio Augusto Ulson de Souza; Selene Maria de Arruda Guelli Ulson de Souza. Bioconversion of low-cost brewery waste to biosurfactant: An improvement of surfactin production by culture medium optimization, Biochemical Engineering Journal, v. 172, 2021, 108058, ISSN 1369-703X.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.bej.2021.108058pt_BR
dc.identifier.issn1369-703Xpt_BR
dc.identifier.urihttps://hdl.handle.net/11600/62502
dc.languageengpt_BR
dc.publisherColin Webbpt_BR
dc.relation.ispartofBiochemical Engineering Journalpt_BR
dc.rightsinfo:eu-repo/semantics/restrictedAccesspt_BR
dc.subjectBrewery wastept_BR
dc.subjectTrubpt_BR
dc.subjectSurfactinpt_BR
dc.subjectBiosurfactantpt_BR
dc.subjectBioreactorpt_BR
dc.titleBioconversion of low-cost brewery waste to biosurfactant: an improvement of surfactin production by culture medium optimizationpt_BR
dc.title.alternativeBioconversion of low-cost brewery waste to biosurfactant: an improvement of surfactin production by culture medium optimizationpt_BR
dc.typeinfo:eu-repo/semantics/articlept_BR
unifesp.campusInstituto de Ciência e Tecnologia (ICT)pt_BR
unifesp.departamentoCiência e Tecnologiapt_BR
unifesp.graduacaoBiotecnologiapt_BR
unifesp.graduateProgramBiotecnologiapt_BR
unifesp.knowledgeAreaEngenharia biológicapt_BR
unifesp.researchAreaBiotecnologia Ambientalpt_BR
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