Study of cellulase enzymes self-assembly in aqueous-acetonitrile solvent:Viscosity measurements

N. Ghaouar; A. Aschi; L. BelbahriS. TrabelsiA. Gharbi

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Study of cellulase enzymes self-assembly in aqueous-acetonitrile solvent:Viscosity measurements

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The present study extends the viscosity measurements performed by Ghaouar et al. Physica B,submitted for publication. to study the conformational change of the cellulase enzymes in aqueous-acetonitrile mixture. We aim to investigate: (i) the denaturation process by measuring the specificviscosity for temperatures varying between 25 and 65℃ and acetonitrile concentrations between 0and 50, (ii) the enzyme-enzyme interaction by calculating the Huggins coefficient and (iii) the enzymesizes by following the hydrodynamic radius for various temperatures. The precipitation of cellulasesversus acetonitrile concentration is also considered. We show from all physical quantities measured inthis work that the precipitation and the denaturation processes of cellulase enzymes exist together.

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来源
《Physica, B. Condensed Matter》 |2009年第21期|4257-4261|共5页
作者
N. Ghaouar; A. Aschi; L. BelbahriS. TrabelsiA. Gharbi;
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作者单位

Laboratoire de Physique de la Matiere Molle, Faculte des Sciences de Tunis, Campus Universitaire, 2092, Tunisia;

Schoolof Engineering of Lullier, University of Applied Sciences of Western Switzerland, 150, Route de Presinge, 1254 fussy, Switzerland;

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原文格式 PDF
正文语种英语
中图分类物理学;
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Cellulases; Acetonitrile; Denaturation; Precipitation; Huggins coefficient; Hydrodynamic radius;

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Study of cellulase enzymes self-assembly in aqueous-acetonitrile solvent:Viscosity measurements

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