DEVELOPMENT OF AN ACTIVE FILM WITH NATURAL ZEOLITE AS ETHYLENE SCAVENGER

Ethylene (C2H4) acts as a plant hormone, growth regulator that has a number of effects on the growth. Ethylene accelerates respiration, leading to maturity and also softening and ripening of many kinds of fruits. Although ethylene has some positive effects, it is often hazardous to the quality and s...

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Autores principales:	COLOMA,A, RODRÍGUEZ,F. J., BRUNA,J. E., GUARDA,A, GALOTTO,M. J.
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2014
Materias:	Ethylene adsorption Na+ Montmorillonite Natural Zeolite
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000200003
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spelling	oai:scielo:S0717-970720140002000032014-11-05DEVELOPMENT OF AN ACTIVE FILM WITH NATURAL ZEOLITE AS ETHYLENE SCAVENGERCOLOMA,ARODRÍGUEZ,F. J.BRUNA,J. E.GUARDA,AGALOTTO,M. J. Ethylene adsorption Na+ Montmorillonite Natural Zeolite Ethylene (C2H4) acts as a plant hormone, growth regulator that has a number of effects on the growth. Ethylene accelerates respiration, leading to maturity and also softening and ripening of many kinds of fruits. Although ethylene has some positive effects, it is often hazardous to the quality and shelf-life of fruits and vegetables. The removal of ethylene and/or inhibition of the effect of ethylene in stored environments is fundamental to maintaining postharvest quality of climacteric produce. In this study, the efficiency of a Chilean natural zeolite (NZ-Ch) against a commercial Na+ montmorillonite (Cloisite Na+) was studied. The aluminosilicate characterization (XDR, FTIR, EGME, CEC, chemical composition) indicates that natural Chilean zeolite belongs to mordenite group. Elemental chemical analysis indicated that compensating ions, were sodium for MTNa+ and calcium, sodium and potassium for NZ-Ch, and in both aluminosilicates copper was present in their composition. Ethylene adsorption kinetics were fitted to a pseudo-second order model. The rate constant of the ethylene adsorption was nearly double for NZ-Ch compared with MtNa+. Langmuir-Freundlich isotherm allowed to determine maximum adsorption capacity that reached values of 5.4 µl g-1 for NZ-Ch and 1.28 µl g-1 for MtNa+. Films of low density polyethylene (LDPE) were obtained with different NZ-Ch concentrations. After 50 hours, a removal of 37% of ethylene present on headspace was achieves with 10% of ZN-Ch in LDPE active films.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.59 n.2 20142014-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000200003en10.4067/S0717-97072014000200003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Ethylene adsorption Na+ Montmorillonite Natural Zeolite
spellingShingle	Ethylene adsorption Na+ Montmorillonite Natural Zeolite COLOMA,A RODRÍGUEZ,F. J. BRUNA,J. E. GUARDA,A GALOTTO,M. J. DEVELOPMENT OF AN ACTIVE FILM WITH NATURAL ZEOLITE AS ETHYLENE SCAVENGER
description	Ethylene (C2H4) acts as a plant hormone, growth regulator that has a number of effects on the growth. Ethylene accelerates respiration, leading to maturity and also softening and ripening of many kinds of fruits. Although ethylene has some positive effects, it is often hazardous to the quality and shelf-life of fruits and vegetables. The removal of ethylene and/or inhibition of the effect of ethylene in stored environments is fundamental to maintaining postharvest quality of climacteric produce. In this study, the efficiency of a Chilean natural zeolite (NZ-Ch) against a commercial Na+ montmorillonite (Cloisite Na+) was studied. The aluminosilicate characterization (XDR, FTIR, EGME, CEC, chemical composition) indicates that natural Chilean zeolite belongs to mordenite group. Elemental chemical analysis indicated that compensating ions, were sodium for MTNa+ and calcium, sodium and potassium for NZ-Ch, and in both aluminosilicates copper was present in their composition. Ethylene adsorption kinetics were fitted to a pseudo-second order model. The rate constant of the ethylene adsorption was nearly double for NZ-Ch compared with MtNa+. Langmuir-Freundlich isotherm allowed to determine maximum adsorption capacity that reached values of 5.4 µl g-1 for NZ-Ch and 1.28 µl g-1 for MtNa+. Films of low density polyethylene (LDPE) were obtained with different NZ-Ch concentrations. After 50 hours, a removal of 37% of ethylene present on headspace was achieves with 10% of ZN-Ch in LDPE active films.
author	COLOMA,A RODRÍGUEZ,F. J. BRUNA,J. E. GUARDA,A GALOTTO,M. J.
author_facet	COLOMA,A RODRÍGUEZ,F. J. BRUNA,J. E. GUARDA,A GALOTTO,M. J.
author_sort	COLOMA,A
title	DEVELOPMENT OF AN ACTIVE FILM WITH NATURAL ZEOLITE AS ETHYLENE SCAVENGER
title_short	DEVELOPMENT OF AN ACTIVE FILM WITH NATURAL ZEOLITE AS ETHYLENE SCAVENGER
title_full	DEVELOPMENT OF AN ACTIVE FILM WITH NATURAL ZEOLITE AS ETHYLENE SCAVENGER
title_fullStr	DEVELOPMENT OF AN ACTIVE FILM WITH NATURAL ZEOLITE AS ETHYLENE SCAVENGER
title_full_unstemmed	DEVELOPMENT OF AN ACTIVE FILM WITH NATURAL ZEOLITE AS ETHYLENE SCAVENGER
title_sort	development of an active film with natural zeolite as ethylene scavenger
publisher	Sociedad Chilena de Química
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000200003
work_keys_str_mv	AT colomaa developmentofanactivefilmwithnaturalzeoliteasethylenescavenger AT rodriguezfj developmentofanactivefilmwithnaturalzeoliteasethylenescavenger AT brunaje developmentofanactivefilmwithnaturalzeoliteasethylenescavenger AT guardaa developmentofanactivefilmwithnaturalzeoliteasethylenescavenger AT galottomj developmentofanactivefilmwithnaturalzeoliteasethylenescavenger
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DEVELOPMENT OF AN ACTIVE FILM WITH NATURAL ZEOLITE AS ETHYLENE SCAVENGER

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