NDLI: Catalytic activity and stability of laccase entrapped in sol

Content Provider	Springer Nature Link
Author	Mohidem, Nur Atikah Mat, Hanapi
Copyright Year	2011
Abstract	This study investigated the effects of different additives and precursors on the catalytic activity of laccase entrapped in sol–gel silica. It was found that the laccase catalytic activity and stability of sol–gel laccase could be enhanced if the entrapment was performed in the presence of additives such as PVA, PEG and APTS. The use of TEOS as a precursor showed slightly higher laccase catalytic activity compared to TMOS. The PVA as an additive showed a better catalytic activity enhancement compared to the PEG and APTMS with the optimum PVA concentration of 0.03 mg/mL. The optimal temperatures of sol–gel laccase without and with additives were found to be at 40 and 27°C, respectively. After 70 days of storage at 27°C, the catalytic activity of the immobilized sol–gel laccase with additives maintained its catalytic activity compared to only 30% of its original catalytic activity for the sol–gel laccase without additives.
Starting Page	96
Ending Page	103
Page Count	8
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	61
Issue Number	1
e-ISSN	15734846
Language	English
Publisher	Springer US
Publisher Date	2011-10-08
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Laccase Entrapment Additives Sol–gel silica Catalytic activity Stability Ceramics, Glass, Composites, Natural Methods Inorganic Chemistry Optical and Electronic Materials Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Materials Chemistry Biomaterials Condensed Matter Physics Electronic, Optical and Magnetic Materials

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