CIBICI   14215
CENTRO DE INVESTIGACION EN BIOQUIMICA CLINICA E INMUNOLOGIA
Unidad Ejecutora - UE
artículos
Título:
Main Flavonoids, DPPH Activity and Metal Content Allow Determining the Geographical Origin of Propolis from the Province of San Juan (Argentina).
Autor/es:
LIMA, B; TAPIA, A.; LUNA, L.; FABANI, M.P.; SCHMEDA-HIRSCHMANN, G.; PODIO, N.S.; WUNDERLIN, D.A.; FERESIN, G.E.
Revista:
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Editorial:
AMERICAN CHEMICAL SOCIETY
Referencias:
Año: 2009 vol. 57 p. 2691 - 2698
ISSN:
0021-8561
Resumen:
The chemical characterization as well as the assessment of geographical origin of propolis from
several areas of the Provincia de San Juan (Argentina) is reported. Chemical characterization of
propolis was performed by measuring total phenolic (TP), total flavonoids (FL), free radical scavenging
capacity (DPPH bleaching), and metal content in samples of six different districts. Methanolic propolis
extracts (MEP) showed TP ranging from 25.7 to 39.3 g of gallic acid equivalents per 100 g of MEP,
whereas flavonoids ranged from 6.6 to 13.3 g of quercetin equivalents per 100 g of MEP. Six main
flavonoids were isolated and identified from the propolis samples, comprising the flavanones 7-hydroxy-
8-methoxyflavanone (1), pinocembrin (2), and pinobanksin (3), the flavones chrysin (4) and tectochrysin
(5), and the flavonol galangin (6). Compounds 1-6 were quantified by HPLC-PDA. Free radical
scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 ìg/mL.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 ìg/mL.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 ìg/mL.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 ìg/mL.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
(5), and the flavonol galangin (6). Compounds 1-6 were quantified by HPLC-PDA. Free radical
scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 ìg/mL.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 ìg/mL.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 ìg/mL.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 ìg/mL.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
(5), and the flavonol galangin (6). Compounds 1-6 were quantified by HPLC-PDA. Free radical
scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 ìg/mL.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 ìg/mL.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 ìg/mL.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 ìg/mL.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging
activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
the origin of free radical activity in propolis samples.
Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of
Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin,
chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among
different origins within the Provincia de San Juan. A direct relationship of DPPH free radical