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Electronic Journal of Biotechnology
Universidad Católica de Valparaíso
ISSN: 0717-3458
Vol. 6, No. 2, 2003, pp. 153-160
Bioline Code: ej03019
Full paper language: English
Document type: Short Communication
Document available free of charge

Electronic Journal of Biotechnology, Vol. 6, No. 2, 2003, pp. 153-160

 en Optimization of β-xylosidase recovery by reversed micelles using response surface methodology
Hasmann, Francislene Andreia; Cortez, Daniela Vieira; Júnior, Adalberto Pessoa & Roberto, Inês Conceição

Abstract

β-Xylosidase recovery by reversed micelles using CTAB cationic surfactant was performed under different experimental conditions. A 22-full orthogonal design with center points was employed to optimize the recovery of this enzyme and to evaluate the influence of the factors CTAB (A) and butanol concentration (B) on the enzyme extraction. A mathematical model to represent the enzyme recovery as a function of A and B was proposed. According to the model, the CTAB and butanol concentrations necessary to attain the maximum β-xylosidase recovery (43%) were 0.26 M and 29.4%, respectively. The results showed that the recovery value predicted by the model was similar to that obtained experimentally (44.3%).

Keywords
β-xylosidase, experimental design, liquid-liquid extraction, optimization, reversed micelles.

 
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