DETERMINATION OF LOW MOLECULAR WEIGHT CARBOHYDRATES IN CABERNET SAUVIGNON RED WINES

Low molecular weight carbohydrates (LMW) were determined in a Chilean Cabernet Sauvignon red wine by the Dubois method, a specifc method for the determination of carbohydrates. Dialysis treatment of red wine allowed the separation of pentoses, hexoses, reducing and non-reducing oligosaccharides and...

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Autores principales:	MATSUHIRO,BETTY, TORRES,RODRIGO, ZÚÑIGA,ELISA A, AGUIRRE,MARIA J, MENDOZA,LEONORA, ISAACS,MAURICIO
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2009
Materias:	Reducing sugars polysaccharides red wine Dubois method
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000400018
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spelling	oai:scielo:S0717-970720090004000182010-04-15DETERMINATION OF LOW MOLECULAR WEIGHT CARBOHYDRATES IN CABERNET SAUVIGNON RED WINESMATSUHIRO,BETTYTORRES,RODRIGOZÚÑIGA,ELISA AAGUIRRE,MARIA JMENDOZA,LEONORAISAACS,MAURICIO Reducing sugars polysaccharides red wine Dubois method Low molecular weight carbohydrates (LMW) were determined in a Chilean Cabernet Sauvignon red wine by the Dubois method, a specifc method for the determination of carbohydrates. Dialysis treatment of red wine allowed the separation of pentoses, hexoses, reducing and non-reducing oligosaccharides and glycosides (LMW) from the polysaccharides fraction (HMW) fraction. The total sugar content of red wine by Dubois method was 5.55 g/L. The content of LMW sugars determined by Dubois method (3.63 g/L) is higher than the sugar content of the polysaccharides fraction (1.78 g/L). Analysis of twenty more samples of Cabernet Sauvignon red wines showed that the high molecular weight fraction content is quite iterative (mean value 2.50 g/L). The advantage of the Dubois method in relation to Fehling method is that the former does not need prior decolouration of the sample and there is not interference of aldehydes. The method developed in this work may be a complementary method for the determination of carbohydrates in wine industry.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.54 n.4 20092009-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000400018en10.4067/S0717-97072009000400018
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Reducing sugars polysaccharides red wine Dubois method
spellingShingle	Reducing sugars polysaccharides red wine Dubois method MATSUHIRO,BETTY TORRES,RODRIGO ZÚÑIGA,ELISA A AGUIRRE,MARIA J MENDOZA,LEONORA ISAACS,MAURICIO DETERMINATION OF LOW MOLECULAR WEIGHT CARBOHYDRATES IN CABERNET SAUVIGNON RED WINES
description	Low molecular weight carbohydrates (LMW) were determined in a Chilean Cabernet Sauvignon red wine by the Dubois method, a specifc method for the determination of carbohydrates. Dialysis treatment of red wine allowed the separation of pentoses, hexoses, reducing and non-reducing oligosaccharides and glycosides (LMW) from the polysaccharides fraction (HMW) fraction. The total sugar content of red wine by Dubois method was 5.55 g/L. The content of LMW sugars determined by Dubois method (3.63 g/L) is higher than the sugar content of the polysaccharides fraction (1.78 g/L). Analysis of twenty more samples of Cabernet Sauvignon red wines showed that the high molecular weight fraction content is quite iterative (mean value 2.50 g/L). The advantage of the Dubois method in relation to Fehling method is that the former does not need prior decolouration of the sample and there is not interference of aldehydes. The method developed in this work may be a complementary method for the determination of carbohydrates in wine industry.
author	MATSUHIRO,BETTY TORRES,RODRIGO ZÚÑIGA,ELISA A AGUIRRE,MARIA J MENDOZA,LEONORA ISAACS,MAURICIO
author_facet	MATSUHIRO,BETTY TORRES,RODRIGO ZÚÑIGA,ELISA A AGUIRRE,MARIA J MENDOZA,LEONORA ISAACS,MAURICIO
author_sort	MATSUHIRO,BETTY
title	DETERMINATION OF LOW MOLECULAR WEIGHT CARBOHYDRATES IN CABERNET SAUVIGNON RED WINES
title_short	DETERMINATION OF LOW MOLECULAR WEIGHT CARBOHYDRATES IN CABERNET SAUVIGNON RED WINES
title_full	DETERMINATION OF LOW MOLECULAR WEIGHT CARBOHYDRATES IN CABERNET SAUVIGNON RED WINES
title_fullStr	DETERMINATION OF LOW MOLECULAR WEIGHT CARBOHYDRATES IN CABERNET SAUVIGNON RED WINES
title_full_unstemmed	DETERMINATION OF LOW MOLECULAR WEIGHT CARBOHYDRATES IN CABERNET SAUVIGNON RED WINES
title_sort	determination of low molecular weight carbohydrates in cabernet sauvignon red wines
publisher	Sociedad Chilena de Química
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000400018
work_keys_str_mv	AT matsuhirobetty determinationoflowmolecularweightcarbohydratesincabernetsauvignonredwines AT torresrodrigo determinationoflowmolecularweightcarbohydratesincabernetsauvignonredwines AT zunigaelisaa determinationoflowmolecularweightcarbohydratesincabernetsauvignonredwines AT aguirremariaj determinationoflowmolecularweightcarbohydratesincabernetsauvignonredwines AT mendozaleonora determinationoflowmolecularweightcarbohydratesincabernetsauvignonredwines AT isaacsmauricio determinationoflowmolecularweightcarbohydratesincabernetsauvignonredwines
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DETERMINATION OF LOW MOLECULAR WEIGHT CARBOHYDRATES IN CABERNET SAUVIGNON RED WINES

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