Flavonoids, phenolic content, and antioxidant activity of propolis from various areas of Guanajuato, Mexico

AUTOR(ES)

HERNÁNDEZ ZARATE, María Susana, ABRAHAM JUÁREZ, María del Rosario, CERÓN GARCÍA, Abel, OZUNA LÓPEZ, César, GUTIÉRREZ CHÁVEZ, Abner Josué, SEGOVIANO GARFIAS, José de Jesús Nezahualcóyotl, AVILA RAMOS, Fidel

FONTE

Food Sci. Technol

DATA DE PUBLICAÇÃO

16/04/2018

RESUMO

Abstract Propolis is a resin gathered by honey bees from trees and shrubs but it used in the beehive as building material or as an antibiotic paste. The aim of this study was to determine the content of flavonoids and phenols, as well as the antioxidant capacity of propolis from various regions of Guanajuato, Mexico. The content of flavonoids and phenols was determined by the aluminum nitrate method and the Folin-Ciocalteu method. The antioxidant capacity was determined using the free radical 2,2-diphenyl-1-picrylhydrazyl (DPPH•) method and the ferric reduction of Fe3+ to Fe2+ (FRAP•) assay. The flavonoid content varied from 13 to 379 mg of quercetin equivalents (QE) per g of propolis and the phenolic content ranged from 68 to 500 mg of caffeic acid equivalents (CAE) per g of propolis. The trolox equivalent antioxidant capacity (TEAC) per g of propolis varied from 39.8 to 54.4 for the DPPH• method and from 50 to 2000 for the FRAP• assay. Propolis rich in flavonoids and phenols possesses a low antioxidant capacity. The results show that propolis from different areas of Guanajuato are rich in flavonoids and phenolics compounds while their antioxidant capacity is variable.

Documentos Relacionados

• Color, phenolic and flavonoid content, and antioxidant activity of honey from Roraima, Brazil
• Phenolic content, antioxidant activity and antiamylolytic activity of extracts obtained from bioprocessed pineapple and guava wastes
• Triatoma mexicana (Hemiptera: Reduviidae) in Guanajuato, Mexico: house infestation and seasonal variation
• Total phenolics, flavonoids, antioxidant activity, and α-glucosidase inhibitory activity of ornamental pepper and several other lines
• Antioxidant capacity, total phenolic content, fatty acids and correlation by principal component analysis of exotic and native fruits from Brazil