Blucher Chemical Engineering Proceedings

Fevereiro 2015, vol.1, num.2 - XX Congresso Brasileiro de Engenharia Química
Artigo - Open Access Idioma principal | Segundo principal

EPOXIDATION OF OLEIC ACID CATALYZED BY CANDIDA ANTARCTIC LIPASE IMMOBILIZED IN MICROEMULSION BASED ORGANOGELS

EPOXIDATION OF OLEIC ACID CATALYZED BY CANDIDA ANTARCTIC LIPASE IMMOBILIZED IN MICROEMULSION BASED ORGANOGELS

ZANETTE, A. F.; ZAMPAKIDI, I.; ZOUMPANIOTI, M.; SOUZA, R. O. M. A.; XENAKIS, A.; CARDOZO FILHO, L.

Artigo:

The use of Candida antarctica lipase B immobilized in hydroxyl-propyl-methyl cellulose microemulsion-based organogels as media for the catalysis of oleic acid epoxidation with Η2Ο2, has been tested. The optimization of several reaction conditions such as temperature, concentration of substrates and the enzyme content of the organogel have been examined. For this purpose an experimental design (central composite rotatable design) was applied. The results showed that the highest yields are observed for the lower temperatures, while the enzyme and oleic acid concentrations do not affect significantly the reaction yield. A yield of 84% was obtained within 48 hours of reaction, 35° C, 0.8 mg of enzyme/ml of microemulsion and 1.2 mL of H2O2. Moreover, the reusability of the catalyst has been verified.

The use of Candida antarctica lipase B immobilized in hydroxyl-propyl-methyl cellulose microemulsion-based organogels as media for the catalysis of oleic acid epoxidation with Η2Ο2, has been tested. The optimization of several reaction conditions such as temperature, concentration of substrates and the enzyme content of the organogel have been examined. For this purpose an experimental design (central composite rotatable design) was applied. The results showed that the highest yields are observed for the lower temperatures, while the enzyme and oleic acid concentrations do not affect significantly the reaction yield. A yield of 84% was obtained within 48 hours of reaction, 35° C, 0.8 mg of enzyme/ml of microemulsion and 1.2 mL of H2O2. Moreover, the reusability of the catalyst has been verified.

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DOI: 10.5151/chemeng-cobeq2014-0251-26330-155429

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Como citar:

ZANETTE, A. F.; ZAMPAKIDI, I.; ZOUMPANIOTI, M.; SOUZA, R. O. M. A.; XENAKIS, A.; CARDOZO FILHO, L. ; "EPOXIDATION OF OLEIC ACID CATALYZED BY CANDIDA ANTARCTIC LIPASE IMMOBILIZED IN MICROEMULSION BASED ORGANOGELS", p-383-390. In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 23591757, DOI 10.5151/chemeng-cobeq2014-0251-26330-155429

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