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A facile method to prepare chemically crosslinked and efficient polyvinyl alcohol/chitosan beads for catalase immobilization

Paper ID Volume ID Publish Year Pages File Format Full-Text
49972 46775 2012 5 PDF Available
Title
A facile method to prepare chemically crosslinked and efficient polyvinyl alcohol/chitosan beads for catalase immobilization
Abstract

In this paper, polyvinyl alcohol (PVA) was modified with 3-aminopropyl triethoxysilane (APTES) and formed chemically crosslinked beads with chitosan. FTIR and SEM were used to characterize the support and immobilized catalase. Compared with control group, the activity of modified group increased about 1400 U/gsupport. The optimal temperature and optimal pH of immobilized catalase were 45 °C and pH 7.0. The thermal stability of catalase also enhanced after immobilization. Moreover, the immobilized catalase retained more than 90% of its original activity after using it for 9 times.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Polyvinyl alcohol (PVA) has been modified with APTES and characterized with FTIR. ► Modified PVA/chitosan beads were activated and crosslinked with glutaraldehyde. ► The catalase in modified PVA/chitosan exhibited higher activity than control group. ► The immobilized catalase exhibited excellent reusability.

Keywords
3-aminopropyl triethoxysilane; Modified polyvinyl alcohol; Polyvinyl alcohol/chitosan beads; Catalase; Immobilization
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A facile method to prepare chemically crosslinked and efficient polyvinyl alcohol/chitosan beads for catalase immobilization
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 27, 5 October 2012, Pages 73–77
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us