ASSESSMENT OF DIETARY FIBER, ISOFLAVONES AND PHENOLIC COMPOUNDS WITH ANTIOXIDANT AND ANTIMICROBIAL PROPERTIES OF QUINOA (Chenopodium quinoa Willd.)

ABSTRACT The consumption of quinoa (Chenopodium quinoa Willd.) has been steadily increasing due to its high nutritional value and health benefits associated with its high antioxidant capacity. The objective of this study was to determine the contents of dietary fiber, polyphenols, flavonoids and iso...

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Autores principales:	Vega-Gálvez,Antonio, Zura,Liliana, Lutz,Mariane, Jagus,Rosa, Agüero,M. Victoria, Pastén,Alexis, Scala,Karina Di, Uribe,Elsa
Lenguaje:	English
Publicado:	Universidad de Concepción. Facultad de Agronomía, Facultad de Ingeniería Agricola y Facultad de Ciencias Veterinarias 2018
Materias:	Quinoa ecotypes antioxidant activity isoflavone antimicrobial activity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-38902018000100057
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spelling	oai:scielo:S0719-389020180001000572019-04-03ASSESSMENT OF DIETARY FIBER, ISOFLAVONES AND PHENOLIC COMPOUNDS WITH ANTIOXIDANT AND ANTIMICROBIAL PROPERTIES OF QUINOA (Chenopodium quinoa Willd.)Vega-Gálvez,AntonioZura,LilianaLutz,MarianeJagus,RosaAgüero,M. VictoriaPastén,AlexisScala,Karina DiUribe,Elsa Quinoa ecotypes antioxidant activity isoflavone antimicrobial activity ABSTRACT The consumption of quinoa (Chenopodium quinoa Willd.) has been steadily increasing due to its high nutritional value and health benefits associated with its high antioxidant capacity. The objective of this study was to determine the contents of dietary fiber, polyphenols, flavonoids and isoflavones, and how they contribute to the antioxidant and antimicrobial activity of six ecotypes of quinoa cultivated in three different zones of Chile. The ecotypes studied were: Ancovinto and Cancosa (Northern zone), Cáhuil and Faro (Central zone), and Regalona and Villarrica (Southern zone). The results indicate that all Chilean quinoa ecotypes could be considered as good sources of dietary fiber (12.23 g 100 g-1 dry matter) and polyphenols (161.32 mg Gallic Acid Equivalents (GAE) 100 g-1 dry matter). The North and Central ecotypes exhibited the highest isoflavone concentration. The Northern Cancosa was the ecotype that showed the highest flavonoid content (211.06 mg Catechin Equivalents (CAE) 100 g-1 dry matter). Based on the ORAC (Oxygen Radical Absorbance Capacity) assay, Ancovinto, Cancosa and Faro presented the highest antioxidant capacity (67.6 mmol Trolox Equivalents (TE) 100 g-1 dry matter). Regarding antimicrobial activity, Regalona ecotype showed the best performance against Saccharomyces cerevisiae and Listeria innocua. The bioactive compounds found in this study add new knowledge to the antioxidant and antimicrobial activity of Chilean quinoa seeds.info:eu-repo/semantics/openAccessUniversidad de Concepción. Facultad de Agronomía, Facultad de Ingeniería Agricola y Facultad de Ciencias VeterinariasChilean journal of agricultural & animal sciences v.34 n.1 20182018-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-38902018000100057en10.4067/S0719-38902018005000101
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Quinoa ecotypes antioxidant activity isoflavone antimicrobial activity
spellingShingle	Quinoa ecotypes antioxidant activity isoflavone antimicrobial activity Vega-Gálvez,Antonio Zura,Liliana Lutz,Mariane Jagus,Rosa Agüero,M. Victoria Pastén,Alexis Scala,Karina Di Uribe,Elsa ASSESSMENT OF DIETARY FIBER, ISOFLAVONES AND PHENOLIC COMPOUNDS WITH ANTIOXIDANT AND ANTIMICROBIAL PROPERTIES OF QUINOA (Chenopodium quinoa Willd.)
description	ABSTRACT The consumption of quinoa (Chenopodium quinoa Willd.) has been steadily increasing due to its high nutritional value and health benefits associated with its high antioxidant capacity. The objective of this study was to determine the contents of dietary fiber, polyphenols, flavonoids and isoflavones, and how they contribute to the antioxidant and antimicrobial activity of six ecotypes of quinoa cultivated in three different zones of Chile. The ecotypes studied were: Ancovinto and Cancosa (Northern zone), Cáhuil and Faro (Central zone), and Regalona and Villarrica (Southern zone). The results indicate that all Chilean quinoa ecotypes could be considered as good sources of dietary fiber (12.23 g 100 g-1 dry matter) and polyphenols (161.32 mg Gallic Acid Equivalents (GAE) 100 g-1 dry matter). The North and Central ecotypes exhibited the highest isoflavone concentration. The Northern Cancosa was the ecotype that showed the highest flavonoid content (211.06 mg Catechin Equivalents (CAE) 100 g-1 dry matter). Based on the ORAC (Oxygen Radical Absorbance Capacity) assay, Ancovinto, Cancosa and Faro presented the highest antioxidant capacity (67.6 mmol Trolox Equivalents (TE) 100 g-1 dry matter). Regarding antimicrobial activity, Regalona ecotype showed the best performance against Saccharomyces cerevisiae and Listeria innocua. The bioactive compounds found in this study add new knowledge to the antioxidant and antimicrobial activity of Chilean quinoa seeds.
author	Vega-Gálvez,Antonio Zura,Liliana Lutz,Mariane Jagus,Rosa Agüero,M. Victoria Pastén,Alexis Scala,Karina Di Uribe,Elsa
author_facet	Vega-Gálvez,Antonio Zura,Liliana Lutz,Mariane Jagus,Rosa Agüero,M. Victoria Pastén,Alexis Scala,Karina Di Uribe,Elsa
author_sort	Vega-Gálvez,Antonio
title	ASSESSMENT OF DIETARY FIBER, ISOFLAVONES AND PHENOLIC COMPOUNDS WITH ANTIOXIDANT AND ANTIMICROBIAL PROPERTIES OF QUINOA (Chenopodium quinoa Willd.)
title_short	ASSESSMENT OF DIETARY FIBER, ISOFLAVONES AND PHENOLIC COMPOUNDS WITH ANTIOXIDANT AND ANTIMICROBIAL PROPERTIES OF QUINOA (Chenopodium quinoa Willd.)
title_full	ASSESSMENT OF DIETARY FIBER, ISOFLAVONES AND PHENOLIC COMPOUNDS WITH ANTIOXIDANT AND ANTIMICROBIAL PROPERTIES OF QUINOA (Chenopodium quinoa Willd.)
title_fullStr	ASSESSMENT OF DIETARY FIBER, ISOFLAVONES AND PHENOLIC COMPOUNDS WITH ANTIOXIDANT AND ANTIMICROBIAL PROPERTIES OF QUINOA (Chenopodium quinoa Willd.)
title_full_unstemmed	ASSESSMENT OF DIETARY FIBER, ISOFLAVONES AND PHENOLIC COMPOUNDS WITH ANTIOXIDANT AND ANTIMICROBIAL PROPERTIES OF QUINOA (Chenopodium quinoa Willd.)
title_sort	assessment of dietary fiber, isoflavones and phenolic compounds with antioxidant and antimicrobial properties of quinoa (chenopodium quinoa willd.)
publisher	Universidad de Concepción. Facultad de Agronomía, Facultad de Ingeniería Agricola y Facultad de Ciencias Veterinarias
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-38902018000100057
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ASSESSMENT OF DIETARY FIBER, ISOFLAVONES AND PHENOLIC COMPOUNDS WITH ANTIOXIDANT AND ANTIMICROBIAL PROPERTIES OF QUINOA (Chenopodium quinoa Willd.)

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