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Liquid-liquid extraction of a recombinant cutinase from fermentation media with AOT reversed micelles

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Abstract

This work reports the extraction and back-extraction of an intracellular recombinant cutinase from complex biological media using AOT reversed micelles in isooctane. Cutinase was recovered from different complex media namely, fermentation broths and supernatants after cell disruption by osmotic shock and sonication. The application of the AOT reversed micellar system to the extraction of cutinase allowed activity yields and purification factors ranging from about 5% to 50% and 1.2 to 10.2, respectively, depending on the biological medium.

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Maria das Graças Carneiro da Cunha, from ITEP-Instituto Tecnológico do Estado de Pernambuco, acknowledges a Ph.D fellowship from Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) and Centro de Pesquisa Aggeu Magalhães, Recife — PE — Brasil. E. P. Melo thanks Junta Nacional de Investigação Científica, Lisboa, Portugal, for providing a Ph.D. fellowship. The scientific support given by Prof. Sílvia M. B. Costa for the spectroscopic data and further discussions are particularly acknowledged.

This work was partly financed by the BRIDGE and BIOTECHNOLOGY Programmes (Contracts BIOT-CT91-0274(DTEE) and BIOT 2 CT-943016).

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Carneiro-da-Cunha, M.G., Melo, E.P., Cabral, J.M.S. et al. Liquid-liquid extraction of a recombinant cutinase from fermentation media with AOT reversed micelles. Bioprocess Engineering 15, 151–157 (1996). https://doi.org/10.1007/BF00369619

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