OXYGEN RADICAL ANTIOXIDANT CAPACITY (ORAC) VALUES OF HERBAL TEAS OBTAINED EMPLOYING DIFFERENT METHODOLOGIES CAN PROVIDE COMPLEMENTARY DATA

The antioxidant capacity of six herbal tea infusions (Mentha piperita, Erythroxylum coca, Rosa moschata, Tilia spp, Plantago major, and Aloysia citriodora) was measured by ORAC type methodologies employing fluorescein (ORAC-FL) and pyrogallol red (ORAC-PGR) as target compounds. Probe consumption pro...

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Autores principales:	POBLETE,A, LÓPEZ-ALARCÓN,C, LISSI,E, CAMPOS,A.M
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2009
Materias:	herbal teas ORAC pyrogallol red fluorescein antioxidant capacity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000200013
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spelling	oai:scielo:S0717-970720090002000132009-10-07OXYGEN RADICAL ANTIOXIDANT CAPACITY (ORAC) VALUES OF HERBAL TEAS OBTAINED EMPLOYING DIFFERENT METHODOLOGIES CAN PROVIDE COMPLEMENTARY DATAPOBLETE,ALÓPEZ-ALARCÓN,CLISSI,ECAMPOS,A.M herbal teas ORAC pyrogallol red fluorescein antioxidant capacity The antioxidant capacity of six herbal tea infusions (Mentha piperita, Erythroxylum coca, Rosa moschata, Tilia spp, Plantago major, and Aloysia citriodora) was measured by ORAC type methodologies employing fluorescein (ORAC-FL) and pyrogallol red (ORAC-PGR) as target compounds. Probe consumption profiles were widely different, with neat induction times when FL is employed as target. Relative ORAC values of different herbal infusions depend upon the test molecule employed. Relative ORAC-PGR values follow the order: Rosa moschata > Mentha piperita > Tilia spp > Plantago major > Aloysia citriodora >Erythroxylum coca, while ORAC-F1 values order is: Mentha piperita > Aloysia citriodora > Erythroxylum coca >Rosa moschata > Tilia spp > Plantago major. These differences are related to the different relevance of the parameters (amount of phenols and reactivity) that determine ORAC values for different target molecules. In particular, ORAC-FL values are associated with the polyphenolic levels present in the sample and, hence, correlate with the Folin index of the infusion. On the other hand, ORAC-PGR values are determined by the quantity and average quality of the antioxidants present in the tested sample. From these results, it is proposed that the ratio ORAC-PGR/ORAC-FL could be employed as a rough measure of the antioxidant average quality of the phenols present in the tested infusion.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.54 n.2 20092009-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000200013en10.4067/S0717-97072009000200013
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	herbal teas ORAC pyrogallol red fluorescein antioxidant capacity
spellingShingle	herbal teas ORAC pyrogallol red fluorescein antioxidant capacity POBLETE,A LÓPEZ-ALARCÓN,C LISSI,E CAMPOS,A.M OXYGEN RADICAL ANTIOXIDANT CAPACITY (ORAC) VALUES OF HERBAL TEAS OBTAINED EMPLOYING DIFFERENT METHODOLOGIES CAN PROVIDE COMPLEMENTARY DATA
description	The antioxidant capacity of six herbal tea infusions (Mentha piperita, Erythroxylum coca, Rosa moschata, Tilia spp, Plantago major, and Aloysia citriodora) was measured by ORAC type methodologies employing fluorescein (ORAC-FL) and pyrogallol red (ORAC-PGR) as target compounds. Probe consumption profiles were widely different, with neat induction times when FL is employed as target. Relative ORAC values of different herbal infusions depend upon the test molecule employed. Relative ORAC-PGR values follow the order: Rosa moschata > Mentha piperita > Tilia spp > Plantago major > Aloysia citriodora >Erythroxylum coca, while ORAC-F1 values order is: Mentha piperita > Aloysia citriodora > Erythroxylum coca >Rosa moschata > Tilia spp > Plantago major. These differences are related to the different relevance of the parameters (amount of phenols and reactivity) that determine ORAC values for different target molecules. In particular, ORAC-FL values are associated with the polyphenolic levels present in the sample and, hence, correlate with the Folin index of the infusion. On the other hand, ORAC-PGR values are determined by the quantity and average quality of the antioxidants present in the tested sample. From these results, it is proposed that the ratio ORAC-PGR/ORAC-FL could be employed as a rough measure of the antioxidant average quality of the phenols present in the tested infusion.
author	POBLETE,A LÓPEZ-ALARCÓN,C LISSI,E CAMPOS,A.M
author_facet	POBLETE,A LÓPEZ-ALARCÓN,C LISSI,E CAMPOS,A.M
author_sort	POBLETE,A
title	OXYGEN RADICAL ANTIOXIDANT CAPACITY (ORAC) VALUES OF HERBAL TEAS OBTAINED EMPLOYING DIFFERENT METHODOLOGIES CAN PROVIDE COMPLEMENTARY DATA
title_short	OXYGEN RADICAL ANTIOXIDANT CAPACITY (ORAC) VALUES OF HERBAL TEAS OBTAINED EMPLOYING DIFFERENT METHODOLOGIES CAN PROVIDE COMPLEMENTARY DATA
title_full	OXYGEN RADICAL ANTIOXIDANT CAPACITY (ORAC) VALUES OF HERBAL TEAS OBTAINED EMPLOYING DIFFERENT METHODOLOGIES CAN PROVIDE COMPLEMENTARY DATA
title_fullStr	OXYGEN RADICAL ANTIOXIDANT CAPACITY (ORAC) VALUES OF HERBAL TEAS OBTAINED EMPLOYING DIFFERENT METHODOLOGIES CAN PROVIDE COMPLEMENTARY DATA
title_full_unstemmed	OXYGEN RADICAL ANTIOXIDANT CAPACITY (ORAC) VALUES OF HERBAL TEAS OBTAINED EMPLOYING DIFFERENT METHODOLOGIES CAN PROVIDE COMPLEMENTARY DATA
title_sort	oxygen radical antioxidant capacity (orac) values of herbal teas obtained employing different methodologies can provide complementary data
publisher	Sociedad Chilena de Química
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000200013
work_keys_str_mv	AT pobletea oxygenradicalantioxidantcapacityoracvaluesofherbalteasobtainedemployingdifferentmethodologiescanprovidecomplementarydata AT lopezalarconc oxygenradicalantioxidantcapacityoracvaluesofherbalteasobtainedemployingdifferentmethodologiescanprovidecomplementarydata AT lissie oxygenradicalantioxidantcapacityoracvaluesofherbalteasobtainedemployingdifferentmethodologiescanprovidecomplementarydata AT camposam oxygenradicalantioxidantcapacityoracvaluesofherbalteasobtainedemployingdifferentmethodologiescanprovidecomplementarydata
_version_	1718445403372781568

OXYGEN RADICAL ANTIOXIDANT CAPACITY (ORAC) VALUES OF HERBAL TEAS OBTAINED EMPLOYING DIFFERENT METHODOLOGIES CAN PROVIDE COMPLEMENTARY DATA

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