DETERMINATION OF ANTIOXIDANT CAPACITY (ORAC) OF GREIGIA SPHACELATA AND CORRELATION WITH VOLTAMMETRIC METHODS

Aravena, Felipe; Perez-Rivera, Monica; Castillo-Felices, Rosario; Mundaca-Uribe, Rodolfo; Aranda-Bustos, Mario; Peña-Farfal, Carlos G

dc.creator	Aravena, Felipe
dc.creator	Perez-Rivera, Monica
dc.creator	Castillo-Felices, Rosario
dc.creator	Mundaca-Uribe, Rodolfo
dc.creator	Aranda-Bustos, Mario
dc.creator	Peña-Farfal, Carlos G
dc.date	2020-09-13
dc.date.accessioned	2020-09-28T11:27:42Z
dc.date.available	2020-09-28T11:27:42Z
dc.identifier	http://www.jcchems.com/index.php/JCCHEMS/article/view/1450
dc.identifier.uri	https://revistaschilenas.uchile.cl/handle/2250/153693
dc.description	The study and determination of the antioxidant capacity of the Greigia Sphacelata fruit were carried out. G. sphacelata is an endemic fruit of central-southern Chile, better known as Chupón or Quiscal. Spectrophotometric and modified ORAC test were developed for antioxidant capacity determinations, and later an electrochemical method was developed by differential impulse voltammetry (DPV) with a vitreous carbon electrode for the quantification of the antioxidant capacity expressed in equivalent of the Trolox standard in μmolL-1. Once the voltammetric test was developed, the correlation study between both methods used to determine the antioxidant capacity of Greigia sphacelata was carried out. The results of the determination of the antioxidant capacity of Greigia sphacelata by ORAC test report an antioxidant capacity of 3525 μmol/100 g equivalents of Trolox. Concerning the concentration obtained by the electrochemical methodology, 682 μmol/100 g Trolox equivalents is obtained for a linear correlation r = 0.969 with the spectrophotometric method.	en-US
dc.format	application/pdf
dc.language	eng
dc.publisher	Sociedad Chilena de Química	en-US
dc.relation	http://www.jcchems.com/index.php/JCCHEMS/article/view/1450/418
dc.rights	Copyright (c) 2020 SChQ	en-US
dc.rights	https://creativecommons.org/licenses/by-nc-sa/4.0	en-US
dc.source	Journal of the Chilean Chemical Society; Vol 65 No 3 (2020): Journal of the Chilean Chemical Society; 4925-4928	en-US
dc.source	0717-9707
dc.source	0717-9324
dc.subject	Antioxidants	en-US
dc.subject	Greigia sphacelata	en-US
dc.subject	ORAC	en-US
dc.subject	DPV	en-US
dc.title	DETERMINATION OF ANTIOXIDANT CAPACITY (ORAC) OF GREIGIA SPHACELATA AND CORRELATION WITH VOLTAMMETRIC METHODS	en-US
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion

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