A STUDY OF THE WATER ACTIVITY LOWERING BEHAVIOR OF POLYETHYLENE GLYCOLS IN THE INTERMEDIATE MOISTURE RANGE

This work reports on the experimental determination of water activity (aw) in aqueous solutions of polyethylene glycol 200, 400, and 600, respectively. The measurements were made in the aw range of most interest to intermediate moisture foods formulation (about 0.80–0.95). The observed behavior was...

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Detalles Bibliográficos
Autores principales: CHIRIFE, J., FONTAN, C.F.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00221147_v45_n6_p1717_CHIRIFE
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00221147_v45_n6_p1717_CHIRIFE2023-10-03T14:26:42Z A STUDY OF THE WATER ACTIVITY LOWERING BEHAVIOR OF POLYETHYLENE GLYCOLS IN THE INTERMEDIATE MOISTURE RANGE CHIRIFE, J. FONTAN, C.F. This work reports on the experimental determination of water activity (aw) in aqueous solutions of polyethylene glycol 200, 400, and 600, respectively. The measurements were made in the aw range of most interest to intermediate moisture foods formulation (about 0.80–0.95). The observed behavior was very well fitted by Norrish's (1966) equation and a simple relationship was found between Norrish's correlating constant and molecular weight of polyethylene glycols. It was found that this relationship may be explained through a theoretical analysis of the thermodynamic behavior of macromolecules in solution. Copyright © 1980, Wiley Blackwell. All rights reserved JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00221147_v45_n6_p1717_CHIRIFE
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description This work reports on the experimental determination of water activity (aw) in aqueous solutions of polyethylene glycol 200, 400, and 600, respectively. The measurements were made in the aw range of most interest to intermediate moisture foods formulation (about 0.80–0.95). The observed behavior was very well fitted by Norrish's (1966) equation and a simple relationship was found between Norrish's correlating constant and molecular weight of polyethylene glycols. It was found that this relationship may be explained through a theoretical analysis of the thermodynamic behavior of macromolecules in solution. Copyright © 1980, Wiley Blackwell. All rights reserved
format JOUR
author CHIRIFE, J.
FONTAN, C.F.
spellingShingle CHIRIFE, J.
FONTAN, C.F.
A STUDY OF THE WATER ACTIVITY LOWERING BEHAVIOR OF POLYETHYLENE GLYCOLS IN THE INTERMEDIATE MOISTURE RANGE
author_facet CHIRIFE, J.
FONTAN, C.F.
author_sort CHIRIFE, J.
title A STUDY OF THE WATER ACTIVITY LOWERING BEHAVIOR OF POLYETHYLENE GLYCOLS IN THE INTERMEDIATE MOISTURE RANGE
title_short A STUDY OF THE WATER ACTIVITY LOWERING BEHAVIOR OF POLYETHYLENE GLYCOLS IN THE INTERMEDIATE MOISTURE RANGE
title_full A STUDY OF THE WATER ACTIVITY LOWERING BEHAVIOR OF POLYETHYLENE GLYCOLS IN THE INTERMEDIATE MOISTURE RANGE
title_fullStr A STUDY OF THE WATER ACTIVITY LOWERING BEHAVIOR OF POLYETHYLENE GLYCOLS IN THE INTERMEDIATE MOISTURE RANGE
title_full_unstemmed A STUDY OF THE WATER ACTIVITY LOWERING BEHAVIOR OF POLYETHYLENE GLYCOLS IN THE INTERMEDIATE MOISTURE RANGE
title_sort study of the water activity lowering behavior of polyethylene glycols in the intermediate moisture range
url http://hdl.handle.net/20.500.12110/paper_00221147_v45_n6_p1717_CHIRIFE
work_keys_str_mv AT chirifej astudyofthewateractivityloweringbehaviorofpolyethyleneglycolsintheintermediatemoisturerange
AT fontancf astudyofthewateractivityloweringbehaviorofpolyethyleneglycolsintheintermediatemoisturerange
AT chirifej studyofthewateractivityloweringbehaviorofpolyethyleneglycolsintheintermediatemoisturerange
AT fontancf studyofthewateractivityloweringbehaviorofpolyethyleneglycolsintheintermediatemoisturerange
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