Prediction models for moisture sorption isotherms of soy protein isolate/carboxymethyl chitosan/oleic acid blend films

Soy protein isolate/carboxymethyl chitosan/oleic acid (SPI/CMCH/O) blend films were prepared by solution casting. The effect of various oleic acid content (0, 2.5, 5.0, 10.0, 20.0 pph of SPI and CMCH) on water sorption isotherm of SPI/CMCH base film was investigated. The sorption isotherm of SPI/CMC...

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Main Authors: Rachtanapun P., Suriyatem R.
Format: Conference or Workshop Item
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-84860815626&partnerID=40&md5=31570b59b9ac7f7b39e43837dd2bdddc
http://cmuir.cmu.ac.th/handle/6653943832/647
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spelling th-cmuir.6653943832-6472014-08-29T08:50:32Z Prediction models for moisture sorption isotherms of soy protein isolate/carboxymethyl chitosan/oleic acid blend films Rachtanapun P. Suriyatem R. Soy protein isolate/carboxymethyl chitosan/oleic acid (SPI/CMCH/O) blend films were prepared by solution casting. The effect of various oleic acid content (0, 2.5, 5.0, 10.0, 20.0 pph of SPI and CMCH) on water sorption isotherm of SPI/CMCH base film was investigated. The sorption isotherm of SPI/CMCH/O blend films was evaluated at serveral relative humidity (0, 16, 35, 55 and 76% RH), at 25±1°C. The isotherms showed equilibrium moisture content (%EMC) of SPI/CMCH/O blend films decreased when oleic acid content increased. Understanding of sorption isotherms is an importance for prediction of moisture sorption properties of films via moisture sorption empirical models. Guggenheim-Anderson-de Boer (GAB), Brunauer-Emmett-Teller (BET) and Oswin sorption models were tested to fit the experimental data. The root mean squares (RMS) of GAB, BET and Oswin were in the range of 68.60-87.02, 22.86-79.38 and 694.78-3797.23, respectively. BET model was found to be the better-fitted model for SPI/CMCH/O blend films at 25±1°C. © (2012) Trans Tech Publications. 2014-08-29T08:50:32Z 2014-08-29T08:50:32Z 2012 Conference Paper 9.78304E+12 10226680 10.4028/www.scientific.net/AMR.506.595 89735 http://www.scopus.com/inward/record.url?eid=2-s2.0-84860815626&partnerID=40&md5=31570b59b9ac7f7b39e43837dd2bdddc http://cmuir.cmu.ac.th/handle/6653943832/647 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Soy protein isolate/carboxymethyl chitosan/oleic acid (SPI/CMCH/O) blend films were prepared by solution casting. The effect of various oleic acid content (0, 2.5, 5.0, 10.0, 20.0 pph of SPI and CMCH) on water sorption isotherm of SPI/CMCH base film was investigated. The sorption isotherm of SPI/CMCH/O blend films was evaluated at serveral relative humidity (0, 16, 35, 55 and 76% RH), at 25±1°C. The isotherms showed equilibrium moisture content (%EMC) of SPI/CMCH/O blend films decreased when oleic acid content increased. Understanding of sorption isotherms is an importance for prediction of moisture sorption properties of films via moisture sorption empirical models. Guggenheim-Anderson-de Boer (GAB), Brunauer-Emmett-Teller (BET) and Oswin sorption models were tested to fit the experimental data. The root mean squares (RMS) of GAB, BET and Oswin were in the range of 68.60-87.02, 22.86-79.38 and 694.78-3797.23, respectively. BET model was found to be the better-fitted model for SPI/CMCH/O blend films at 25±1°C. © (2012) Trans Tech Publications.
format Conference or Workshop Item
author Rachtanapun P.
Suriyatem R.
spellingShingle Rachtanapun P.
Suriyatem R.
Prediction models for moisture sorption isotherms of soy protein isolate/carboxymethyl chitosan/oleic acid blend films
author_facet Rachtanapun P.
Suriyatem R.
author_sort Rachtanapun P.
title Prediction models for moisture sorption isotherms of soy protein isolate/carboxymethyl chitosan/oleic acid blend films
title_short Prediction models for moisture sorption isotherms of soy protein isolate/carboxymethyl chitosan/oleic acid blend films
title_full Prediction models for moisture sorption isotherms of soy protein isolate/carboxymethyl chitosan/oleic acid blend films
title_fullStr Prediction models for moisture sorption isotherms of soy protein isolate/carboxymethyl chitosan/oleic acid blend films
title_full_unstemmed Prediction models for moisture sorption isotherms of soy protein isolate/carboxymethyl chitosan/oleic acid blend films
title_sort prediction models for moisture sorption isotherms of soy protein isolate/carboxymethyl chitosan/oleic acid blend films
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-84860815626&partnerID=40&md5=31570b59b9ac7f7b39e43837dd2bdddc
http://cmuir.cmu.ac.th/handle/6653943832/647
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