TRANSFORMACIÓN ENZIMÁTICA DE LA ESTRUCTURA CRISTALINA DEL COPOLÍMERO POLIETIL-VINIL ALCOHOL (EVOH)

Changes in the crystalline structure of the copolymer poly(ethylene-co-vinyl alcohol) (EVOH) that occurs during the enzymatic fermentation system with the fungus Phanerochaete chrysosoporium were studied. This fungus has a powerful group of oxidative enzymes that had been used for several processes...

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Autores principales:	Carolina ARBOLEDA E., Freimar SEGURA S., Amanda I. MEJÍA G.
Formato:	article
Lenguaje:	EN
Publicado:	Universidad de Antioquia 2009
Materias:	poly(ethylene-co-vinyl alcohol) lignin peroxidase Phanerochaete chrysosporium crystalline Food processing and manufacture TP368-456 Pharmaceutical industry HD9665-9675
Acceso en línea:	https://doaj.org/article/8892b9d038fc4dadac49384bfb2fd752
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spelling	oai:doaj.org-article:8892b9d038fc4dadac49384bfb2fd7522021-11-19T04:21:48ZTRANSFORMACIÓN ENZIMÁTICA DE LA ESTRUCTURA CRISTALINA DEL COPOLÍMERO POLIETIL-VINIL ALCOHOL (EVOH)0121-40042145-2660https://doaj.org/article/8892b9d038fc4dadac49384bfb2fd7522009-02-01T00:00:00Zhttps://revistas.udea.edu.co/index.php/vitae/article/view/565https://doaj.org/toc/0121-4004https://doaj.org/toc/2145-2660Changes in the crystalline structure of the copolymer poly(ethylene-co-vinyl alcohol) (EVOH) that occurs during the enzymatic fermentation system with the fungus Phanerochaete chrysosoporium were studied. This fungus has a powerful group of oxidative enzymes that had been used for several processes of environmental pollutants degradation. In order to use the enzymatic system of the fungus to improve degradation, films of the copolymer are inoculated and maintained in a solid state fermentation (SSF) system using as substrate a mixture of agroindustrial corn wastes with an initial humidity of 90%, during forty days. Analyses of the films were made at different times of fermentation. The effect on the chemical structure of the polymer was studied by using FTIR-spectroscopy with attenuated total reflection (ATR) and changes in the crystalline structure were determined by differential scan calorimetry DSC and X-ray diffraction technique. The lignin peroxidase (LiP) activity was followed by UV-spectrophotometry. We concluded that after 20 days of fermentation the copolymer has lost 50 percent of the initial crystalline structure. Carolina ARBOLEDA E.Freimar SEGURA S.Amanda I. MEJÍA G.Universidad de Antioquiaarticlepoly(ethylene-co-vinyl alcohol)lignin peroxidasePhanerochaete chrysosporiumcrystallineFood processing and manufactureTP368-456Pharmaceutical industryHD9665-9675ENVitae, Vol 14, Iss 1 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	poly(ethylene-co-vinyl alcohol) lignin peroxidase Phanerochaete chrysosporium crystalline Food processing and manufacture TP368-456 Pharmaceutical industry HD9665-9675
spellingShingle	poly(ethylene-co-vinyl alcohol) lignin peroxidase Phanerochaete chrysosporium crystalline Food processing and manufacture TP368-456 Pharmaceutical industry HD9665-9675 Carolina ARBOLEDA E. Freimar SEGURA S. Amanda I. MEJÍA G. TRANSFORMACIÓN ENZIMÁTICA DE LA ESTRUCTURA CRISTALINA DEL COPOLÍMERO POLIETIL-VINIL ALCOHOL (EVOH)
description	Changes in the crystalline structure of the copolymer poly(ethylene-co-vinyl alcohol) (EVOH) that occurs during the enzymatic fermentation system with the fungus Phanerochaete chrysosoporium were studied. This fungus has a powerful group of oxidative enzymes that had been used for several processes of environmental pollutants degradation. In order to use the enzymatic system of the fungus to improve degradation, films of the copolymer are inoculated and maintained in a solid state fermentation (SSF) system using as substrate a mixture of agroindustrial corn wastes with an initial humidity of 90%, during forty days. Analyses of the films were made at different times of fermentation. The effect on the chemical structure of the polymer was studied by using FTIR-spectroscopy with attenuated total reflection (ATR) and changes in the crystalline structure were determined by differential scan calorimetry DSC and X-ray diffraction technique. The lignin peroxidase (LiP) activity was followed by UV-spectrophotometry. We concluded that after 20 days of fermentation the copolymer has lost 50 percent of the initial crystalline structure.
format	article
author	Carolina ARBOLEDA E. Freimar SEGURA S. Amanda I. MEJÍA G.
author_facet	Carolina ARBOLEDA E. Freimar SEGURA S. Amanda I. MEJÍA G.
author_sort	Carolina ARBOLEDA E.
title	TRANSFORMACIÓN ENZIMÁTICA DE LA ESTRUCTURA CRISTALINA DEL COPOLÍMERO POLIETIL-VINIL ALCOHOL (EVOH)
title_short	TRANSFORMACIÓN ENZIMÁTICA DE LA ESTRUCTURA CRISTALINA DEL COPOLÍMERO POLIETIL-VINIL ALCOHOL (EVOH)
title_full	TRANSFORMACIÓN ENZIMÁTICA DE LA ESTRUCTURA CRISTALINA DEL COPOLÍMERO POLIETIL-VINIL ALCOHOL (EVOH)
title_fullStr	TRANSFORMACIÓN ENZIMÁTICA DE LA ESTRUCTURA CRISTALINA DEL COPOLÍMERO POLIETIL-VINIL ALCOHOL (EVOH)
title_full_unstemmed	TRANSFORMACIÓN ENZIMÁTICA DE LA ESTRUCTURA CRISTALINA DEL COPOLÍMERO POLIETIL-VINIL ALCOHOL (EVOH)
title_sort	transformación enzimática de la estructura cristalina del copolímero polietil-vinil alcohol (evoh)
publisher	Universidad de Antioquia
publishDate	2009
url	https://doaj.org/article/8892b9d038fc4dadac49384bfb2fd752
work_keys_str_mv	AT carolinaarboledae transformacionenzimaticadelaestructuracristalinadelcopolimeropolietilvinilalcoholevoh AT freimarseguras transformacionenzimaticadelaestructuracristalinadelcopolimeropolietilvinilalcoholevoh AT amandaimejiag transformacionenzimaticadelaestructuracristalinadelcopolimeropolietilvinilalcoholevoh
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TRANSFORMACIÓN ENZIMÁTICA DE LA ESTRUCTURA CRISTALINA DEL COPOLÍMERO POLIETIL-VINIL ALCOHOL (EVOH)

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