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IJBB Vol.46(5) [October 2009] >

Title: Efficient and rapid purification of lentil -galactosidase by affinity precipitation with alginate
Authors: Çelem, Evran Bıçak
Bolle, Sharon Sibel
Önal, Seçil
Keywords: Affinity macroligand
Affinity precipitation
Lentil seed
Issue Date: Oct-2009
Publisher: CSIR
Abstract:  -Galactosidase (-D-galactoside galactohydrolase, EC was purified (26-fold) from the germinating seeds of lentil (Lens culinaris) by affinity precipitation with alginate. The purified enzyme gave a single band corresponding to molecular mass of 40 kDa on SDS-PAGE. The optimum temperature and pH of the enzyme were determined as 40oC and 5.5, respectively. The enzyme was very stable at a temperature range of 4-65oC and at a pH range of 4-7. The values of kinetic constants Km and Vmax using p-nitrophenyl--D-galactopyranoside (PNPG) as substrate were 0.191 mM and 0.73 U, respectively. Results suggest that affinity precipitation is an attractive process for the purification of -galactosidase.
Page(s): 366-370
ISSN: 0975-0959 (Online); 0301-1208 (Print)
Source:IJBB Vol.46(5) [October 2009]

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