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Amino acid extraction and mass transfer rate in the reverse micelle system

Paper ID Volume ID Publish Year Pages File Format Full-Text
18802 42743 2006 6 PDF Available
Title
Amino acid extraction and mass transfer rate in the reverse micelle system
Abstract

The mass transfer of l-isoleucine from NaOH solution of pH 12.0 to a reverse micelle phase includes Aliquat-336 as a cationic surfactant, 1-decanol as a co-surfactant and isooctane as an apolar solvent has been investigated in a stirred cell. Interfacial mass transfer coefficients were determined using two film models. The extraction in this system was found to be controlled by interface solubilization and the diffusion of the amino acid in the aqueous phase boundary layer. The total mass transfer coefficient, K0, increased from 1.77 × 10−5 to 6.02 × 10−5 m s−1 with the increase of Aliquat-336 concentration from 50 to 200 mM for 100 rpm stirring rate. The organic phase coefficient, korg was evaluated using the data of transport of water to the reversed micelle phase. korg increased from 1.50 × 10−5 to 2.00 × 10−5 m s−1 with the increase of stirring rate from 50 to 100 rpm for 50 mM Aliquat-336 concentration.

Keywords
Reverse micelle; Cationic surfactant; Mass transfer coefficient; l-Isoleucine; Aliquat-336
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 38, Issues 3–4, 1 February 2006, Pages 557–562
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