• Journals
  • Discipline
  • Indexed
  • Institutions
  • About
JavaScript is disabled for your browser. Some features of this site may not work without it.
View Item 
  •   Home
  • Sociedad Chilena de Química
  • Journal of the Chilean Chemical Society
  • View Item
  •   Home
  • Sociedad Chilena de Química
  • Journal of the Chilean Chemical Society
  • View Item

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

Author
Aravena, Felipe

Perez-Rivera, Monica

Castillo-Felices, Rosario

Mundaca-Uribe, Rodolfo

Aranda-Bustos, Mario

Peña-Farfal, Carlos G

Full text
http://www.jcchems.com/index.php/JCCHEMS/article/view/1450
Abstract
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.
Metadata
Show full item record
Discipline
Artes, Arquitectura y UrbanismoCiencias Agrarias, Forestales y VeterinariasCiencias Exactas y NaturalesCiencias SocialesDerechoEconomía y AdministraciónFilosofía y HumanidadesIngenieríaMedicinaMultidisciplinarias
Institutions
Universidad de ChileUniversidad Católica de ChileUniversidad de Santiago de ChileUniversidad de ConcepciónUniversidad Austral de ChileUniversidad Católica de ValparaísoUniversidad del Bio BioUniversidad de ValparaísoUniversidad Católica del Nortemore

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

LoginRegister
Dirección de Servicios de Información y Bibliotecas (SISIB) - Universidad de Chile
© 2019 Dspace - Modificado por SISIB