Abstract：
:The effects of alcohol treatment on the activity and loading amount of Candida rugosa lipase (CRL), Candida Antarctica lipase B (CALB) and Porcine Pancreas lipase (PPL) immobilized on methyl-modified silica aerogels were investigated, and the fluorescent analysis was used to explore the change of lipase hydrophobicity in aqueous solution caused by alcohols. It is found that alcohol types and the stages at which alcohol was added significantly influenced the performance of immobilized lipases through changing the hydrophobicity of the molecules. For CRL and PPL, five kinds of alcohol were added in the adsorption process, and n-butanol and isopropanol improved the apparent activity of CRL and PPL up to 2.5 times and 2 times those of the untreated ones, respectively; however, for CALB, it is better to activate the immobilized CALB after the adsorption process, and the apparent activity of CALB increased up to 2.76 times through n-butanol treatment.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Gao S,Wang W,Wang Y,Luo G,Dai Ydoi
10.1016/j.biortech.2010.04.089subject
Has Abstractpub_date
2010-10-01 00:00:00pages
7231-8issue
19eissn
0960-8524issn
1873-2976pii
S0960-8524(10)00799-6journal_volume
101pub_type
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