Evaluation of a new method for (L+) lactic acid purification, using ethyl ether

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorCoelho, Luciana Fontes [UNESP]-
Autor(es): dc.creatorSass, Daiane Cristina [UNESP]-
Autor(es): dc.creatorAvila Neto, Paulo Marcelo [UNESP]-
Autor(es): dc.creatorContiero, Jonas [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:30:54Z-
Data de disponibilização: dc.date.available2022-02-22T00:30:54Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.bcab.2020.101653-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/200519-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/200519-
Descrição: dc.descriptionThe aim of the present study was to obtain high levels of fermentative L (+) lactic acid and find a better form of purification. The process was optimized by testing different compositions of the culture media, evaluating alternative carbon and nitrogen sources (agribusiness waste products), using inexpensive procedures and improve the production, recovery and purification of lactic acid from the fermented broth. Using 100 g/L crystallized sugar, 30 g/L yeast autolysate and NH4OH as the neutralizing agent, the production of L (+) lactic acid by Bacillus coagulans arr4 was 75.26 g/L in 24 h, with 2.76 g/L of residual sugar. The lactic acid purification and recovery experiments using double filtration with charcoal and Celite followed by a cation exchange column led to the economic recovery of lactic acid and the removal of substances and sugars. However, an additional purification step (extraction with ethyl ether) was needed for a microwave lactic acid polymerization reaction. Average recovery was 80%, with high purity.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionSão Paulo State University (Unesp) Institute of Biosciences Department of Biochemistry and Microbiology-
Descrição: dc.descriptionSão Paulo State University(Unesp) Institute for Research in Bioenergy-
Descrição: dc.descriptionSão Paulo State University (Unesp) Institute of Biosciences Department of Biochemistry and Microbiology-
Descrição: dc.descriptionSão Paulo State University(Unesp) Institute for Research in Bioenergy-
Descrição: dc.descriptionFAPESP: 2009/00142-4-
Descrição: dc.descriptionFAPESP: 2010/52416-8-
Descrição: dc.descriptionCNPq: 302935/2015-0-
Idioma: dc.languageen-
Relação: dc.relationBiocatalysis and Agricultural Biotechnology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBacillus-
Palavras-chave: dc.subjectCelite-
Palavras-chave: dc.subjectCharcoal-
Palavras-chave: dc.subjectEthyl ether-
Palavras-chave: dc.subjectLactic acid-
Palavras-chave: dc.subjectPurification-
Título: dc.titleEvaluation of a new method for (L+) lactic acid purification, using ethyl ether-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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