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Development of enzymatic member reactor (EMR) for cyclodextrins production

Illias, Md Rosli and Ismail, Ahmad Fauzi and A.M.M, Sakinah and Hassan, Osman (2007) Development of enzymatic member reactor (EMR) for cyclodextrins production. Journal of Applied Science, 7 (15). 2028 -2032. ISSN 1812-5654

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Abstract

This study investigated on the fouling mechanisms in ultrafiltration membrane during separation of cyclodextrins from starch and CGTase. The Resistance-In-Series Model was used to identify the responsible hydraulic resistances. The result showed that the weak adsorption fouling resistance (ra1.) was the main factor that contributed the rate and extent of flux decline. Moreover the significant organic fouling that is contributed by starch, CDs, CGTase and intermediate by-products in organic colloids and/or macromolecular revealed that the fouling potential was ra1> rg > rcp > ra2. The overall results indicate that the fouling mechanism consists of pore mouth adsorption and subsequently narrowing of the pores as those components (starch and CGTase) are small enough not to be excluded by steric considerations. In the latter stage unreacted starch would be accumulated to form gel/cake layer. The measured flux recovery of enzymatic membrane reactor for CDs production was about 95%. © 2007 Asian Network for Scientific Information.

Item Type:Article
Uncontrolled Keywords:Cyclodextrins, enzymatic membrane reactor, fouling mechanism, hollow fiber membrane, ultrafiltration
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:7251
Deposited By: Maznira Sylvia Azra Mansor
Deposited On:01 Jan 2009 07:45
Last Modified:01 Jan 2009 07:45

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