In Vitro Cultivars of Vaccinium corymbosum L. (Ericaceae) are a Source of Antioxidant Phenolics

Contreras, RA; Kohler, H; Pizarro M.; ZUNIGA, GE

Keywords: ms, phenolic composition, high-bush blueberry in vitro cultivars, HPLC-DAD and LC-MS, DPPH center dot and FRAP

Abstract

The antioxidant activity and phenolic composition of six in vitro cultured blueberry seedlings were determined. Extracts were prepared in 85% ethanol from 30 days old in vitro cultured plants and used to evaluate the antioxidant capacities that included Ferric reducing antioxidant power (FRAP) and 1,1-diphenyl-2-picrylhydrazin (DPPH center dot) scavenging ability, total polyphenols (TP) and the partial phenolic composition performed by high performance liquid chromatography with diode array detector (HPLC-DAD), liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS (ESI-QqQ)). All ethanolic extracts from in vitro blueberry cultivars displayed antioxidant activity, with Legacy, Elliott and Bluegold cultivars being the most active. In addition, we observed a positive correlation between phenolic content and antioxidant activity. Our results suggest that the antioxidant activity of the extracts is related to the content of chlorogenic acid myricetin, syringic acid and rutin, and tissue culture of blueberry seedlings is a good tool to obtain antioxidant extracts with reproducible profile of compounds.

Más información

Título de la Revista: Antioxidants (Basel) .
Volumen: 4
Número: 2
Editorial: MDPI
Fecha de publicación: 2015
Página de inicio: 281
Página final: 292
Idioma: English
DOI:

10.3390/antiox4020281

Notas: WOS-ESCI