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	Provedor de dados BJM (2) Autor Carvalho,Patrícia de Oliveira (2) Contesini,Fabiano Jares (2) Alberto,Thiago Grando (1) Araújo,Maria Elisa Melo Branco de (1) Campos,Paula Renata Bueno (1) Ikegaki,Masaharu (1) Mais... Palavra-chave Immobilization (1) Lipase (1) Lipase (R (1) Polyunsaturated fatty acids (1) S)-ibuprofen (R (1) S)-ketoprofen enantioselectivity (1) Soybean oil (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2016 (1) 2006 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Enzymatic resolution of (R,S)-ibuprofen and (R,S)-ketoprofen by microbial lipases from native and commercial sources BJM Carvalho,Patrícia de Oliveira; Contesini,Fabiano Jares; Ikegaki,Masaharu. The enantioselectivity (E) of native lipases from Aspergillus niger, Aspergillus terreus, Fusarium oxysporum, Mucor javanicus, Penicillium solitum and Rhizopus javanicus in the resolution of (R,S)-ibuprofen and (R,S)-ketoprofenenantiomers by esterification reaction with 1-propanol in isooctane was compared with known commercial Candida rugosa (Sigma) and Candida antarctica (Novozym®435) lipases. In the resolution of (R,S)-ibuprofen, C. rugosa lipase showed good selectivity (E = 12) while Novozym®435 (E = 6.7) and A. niger (E = 4.8) lipases had intermediate selectivities. Other enzymes were much less selective (E around 2.3 and 1.5), under tested conditions. After preliminary optimization of reaction conditions (water content, enzyme concentration and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Lipase (R; S)-ibuprofen (R; S)-ketoprofen enantioselectivity. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000300024 Synthesis of structured triacylglycerols enriched in n-3 fatty acids by immobilized microbial lipase BJM Araújo,Maria Elisa Melo Branco de; Campos,Paula Renata Bueno; Alberto,Thiago Grando; Contesini,Fabiano Jares; Carvalho,Patrícia de Oliveira. Abstract The search for new biocatalysts has aroused great interest due to the variety of micro-organisms and their role as enzyme producers. Native lipases from Aspergillus niger and Rhizopus javanicus were used to enrich the n-3 long-chain polyunsaturated fatty acids content in the triacylglycerols of soybean oil by acidolysis with free fatty acids from sardine oil in solvent-free media. For the immobilization process, the best lipase/support ratios were 1:3 (w/w) for Aspergillus niger lipase and 1:5 (w/w) for Rhizopus javanicus lipase using Amberlite MB-1. Both lipases maintained constant activity for 6 months at 4 °C. Reaction time, sardine-free fatty acids:soybean oil mole ratio and initial water content of the lipase were investigated to determine... Tipo: Info:eu-repo/semantics/article Palavras-chave: Lipase; Immobilization; Soybean oil; Polyunsaturated fatty acids. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000401006 Registros recuperados: 2 Primeira ... 1 ... Última

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