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Please use this identifier to cite or link to this item: http://purl.org/purl/2265

Title: Tuning mesoporous molecular sieve SBA-15 for the immobilization of α-amylase
Authors: Ajitha, Sreedharan
Sugunan, Sankaran
Keywords: Immobilization
Issue Date: 2010
Publisher: Springer Netherlands
Abstract: The present work describes the immobilization of α-amylase over well ordered mesoporous molecular sieve SBA-15 with different pore diameters synthesized by post synthesis treatment (PST) hydrothermally after reaction at 40°C. The materials were characterized by N 2 adsorption–desorption studies, small angle X-ray diffraction, scanning electron microscopy and high resolution transmission electron microscopy. Since α-amylase obtained from Bacillus subtilis has dimensions of 35 × 40 × 70 Å it is expected that the protein have access to the pore of SBA-15 (PST-120°C) with diameter 74 Å. The pore dimension is appropriate to prevent considerable leaching. The rate of adsorption of the enzyme on silica of various pore sizes revealed the influence of morphology, pore diameter, pore volume and pH.
URI: http://dyuthi.cusat.ac.in/purl/2265
ISSN: 1380-2224
Appears in Collections:Dr. Sugunan S

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