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External mass transfer model for the hydrolysis of palm olein using immobilized lipase

Paper ID Volume ID Publish Year Pages File Format Full-Text
19353 43061 2008 7 PDF Available
Title
External mass transfer model for the hydrolysis of palm olein using immobilized lipase
Abstract

The application of immobilized enzyme in packed-bed reactor is gaining interest in the industry as it offers advantages over conventional chemical reactions. However, external mass transfer limitation is significant in immobilized enzyme packed-bed reactors, especially at large scales. This study aimed to develop an external mass transfer model for immobilized lipase (EC 3.1.1.3) during the hydrolysis of palm olein. A mass transfer correlation model of the form JD = KRen−1 was developed based on the literatures. The Colburn factor, JD, which is a function of Reynolds and Schmidt numbers, can be related to the external mass transfer coefficient, km. The values of K and n were determined by conducting experimental work at different mass flow rates. It was found that the values of K and n are 0.093 and 0.5, respectively. Since the average mass transfer coefficients can be correlated in terms of dimensionless groups which characterize the flow conditions, this model can be used for reactor scale-up design.

Keywords
Mass transfer model; Immobilized lipase; Packed-bed reactor; Palm olein
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 86, Issue 4, December 2008, Pages 276–282
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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