A. M., Sakinah and Ismail, Ahmad Fauzi and Illias, Md Rosli 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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Official URL: http://doi.dx.org/10.3923/jas.2007.2028.2032
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 |
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Uncontrolled Keywords: | Cyclodextrins, enzymatic membrane reactor, fouling mechanism, hollow fiber membrane, ultrafiltration |
Subjects: | T Technology > TP Chemical technology |
Divisions: | Chemical and Natural Resources Engineering |
ID Code: | 7251 |
Deposited By: | Maznira Sylvia Azra Mansor |
Deposited On: | 01 Jan 2009 07:45 |
Last Modified: | 22 Oct 2017 08:55 |
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