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A new local composition model for predicting of activity coefficient and solubility of amino acids and peptides in water

Paper ID Volume ID Publish Year Pages File Format Full-Text
4976 265 2006 6 PDF Available
Title
A new local composition model for predicting of activity coefficient and solubility of amino acids and peptides in water
Abstract

The local composition models, such as M-Wilson, NRTL and M-NRTL models have been used to predict the activity coefficients of amino acids and simple peptides in water. In this study, the binary interaction parameters of the local composition models for water–amino acid and amino acid–water molecules have been calculated. The results obtained from the models have been compared with the experimental data of activity coefficients and the deviations of all those models have been reported, too. It is shown that M-NRTL model can more accurately predict the activity coefficients. The models have been also used to predict the solubility of amino acids in water. The results show that the M-Wilson model can accurately predict the solubility of amino acid at a wide range of temperatures. Finally, the values of Δh, Δs and Δg of the solutions have been calculated.

Keywords
Thermodynamic; Amino acid; Peptide; Local composition model; Water
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A new local composition model for predicting of activity coefficient and solubility of amino acids and peptides in water
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 28, Issue 1, February 2006, Pages 44–49
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