Abstract
Xylanase recovery by reversed micelles using cationic surfactants (N-benzyl-N-dodecyl-N-bis(2-hydroxyethhyl)ammonium chloride) BDBAC was evaluated under different experimental conditions. A full factorial design with center point was employed to verify the in fluence of different factors on the recovery. A mathematical model was found to represent the xylanese yield (Y) as a function of BDBAC and hexanol: Y=4.32+5.1B+2.64D+0.83B2+1.46D2, where B=BDBAC and D=hexanol. The highest xylanase recovery (27%), indicated by the model was attained at pH=8.1, BDBAC=0.38 M and hexanol=8.6%. Under these conditions, and to test the model, a new xylanase extraction was performed in laboratory, giving 29.4% recovery yield, this value was similar to that predicted by the model.
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Rodrigues, E.M.G., Pessoa, A. & Milagres, A.M.F. Screening of variables in xylananese recovery using BDBAC reversed micelles. Appl Biochem Biotechnol 79, 779–788 (1999). https://doi.org/10.1385/ABAB:79:1-3:779
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DOI: https://doi.org/10.1385/ABAB:79:1-3:779