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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Ethyl esters production catalyzed by immobilized lipases is influenced byn-hexaneandter-amyl alcohol as organic solvents

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Autor(es):
Borges, Janaina Pires [1] ; Quilles Junior, Jose Carlos [2] ; Moreno-Perez, Sonia [3] ; Fernandez-Lorente, Gloria [4] ; Boscolo, Mauricio [2] ; Gomes, Eleni [4] ; da Silva, Roberto [2] ; Bocchini, Daniela Alonso [1] ; Guisan, Jose Manuel [5]
Número total de Autores: 9
Afiliação do(s) autor(es):
[1] IQ UNESP, Dept Biochem & Chem Technol, Rua Prof Francisco Degni 55, BR-14800060 Araraquara, SP - Brazil
[2] IBILCE UNESP, Dept Chem & Environm Sci, Rua Cristovao Colombo 2265, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
[3] CSIC, CIAL, Res Inst Food Sci, Dept Biotechnol & Food Microbiol, Campus UAM, Madrid 28049 - Spain
[4] IBILCE UNESP, Dept Biol, Rua Cristovao Colombo 2265, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
[5] CSIC, Dept Catalysis, Campus UAM, Madrid 28049 - Spain
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: Bioprocess and Biosystems Engineering; JUN 2020.
Citações Web of Science: 0
Resumo

Lipase stability in organic solvent is crucial for its application in many biotechnological processes as biocatalyst. One way to improve lipase's activity and stability in unusual reaction medium is its immobilization on inert supports. Here, lipases from different sources and immobilized through weak chemical interactions on hydrophobic and ionic supports had their transesterification ability dramatically dependent on the support and also on the solvent that had been used. The ethanolysis of sardine oil was carried out at the presence of cyclohexane and tert-amyl alcohol, in which Duolite A568-Thermomyces lanuginosalipase derivative achieved 49% of ethyl esters production after 24 h in cyclohexane. The selectivity of immobilized lipases was also studied and, after 3 h of synthesis, the reaction with Duolite A568-Thermomyces lanuginosaderivative in cyclohexane produced 24% ethyl ester of eicosapentaenoic acid and 1.2% ethyl ester of docosahexaenoic acid, displaying a selectivity index of 20 times the ethyl ester of eicosapentaenoic acid. Different derivatives ofCandida antarcticalipases fraction B (CALB) and phospholipaseLecitase (R) Ultra (Lecitase) were also investigated. Along these lines, a combination between these factors may be applied to improve the activity and selectivity of immobilized lipases, decreasing the total cost of the process. (AU)

Processo FAPESP: 13/00530-0 - Imobilização e estabilização de lipases de Candida antarctida: fração b e sua aplicação em biocatálise
Beneficiário:José Carlos Quilles Junior
Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Mestrado
Processo FAPESP: 12/09054-3 - Imobilização de lipases em derivados de agarose e quitosana e sua aplicação em biocatálise.
Beneficiário:José Carlos Quilles Junior
Linha de fomento: Bolsas no Brasil - Mestrado