2012) Composition and antioxidant activity of honey from Africanized and stingless bees in Alagoas (Brazil): a multivariate analysis, Journal of Apicultural Research, 51:1, 23-35 To link to this article: http://dx.
SummaryThe purpose of this study was to evaluate the antioxidant activity of honey from different entomological sources which were harvested in the dry season of 2008-2009 from distinct mesoregions of the State of Alagoas in the North East of Brazil. Honey produced by five different species of bees, even from the same region and season, showed a statistically significant difference (p <0.05) in the content of phenols, flavonoids and antioxidants, with higher levels of these compounds found in honey produced by Plebeia spp. and A. mellifera. Honey from stingless bees was quite different from that of A. mellifera, especially from the Plebeia spp. A dendrogram of the five species of bees showed the formation of 3 groups, one being formed by Apis mellifera, one by the genus Melipona (M. subnitida, M. quadrifasciata and M. scutellaris) and another formed by Plebeia spp.Composición y actividad antioxidante de la miel de abejas africanizadas y sin aguijón en Alagoas (Brasil): un análisis multivariante Resumen El propósito de este estudio fue evaluar la actividad antioxidante de la miel de diferentes fuentes entomológicas que se recogieron en la estación seca de 2008-2009 de distintas mesorregiones del Estado de Alagoas en el noreste de Brasil. La miel producida por cinco especies distintas de abejas, incluso de la misma región y de temporada, mostró una diferencia estadísticamente significativa (p < 0,05) en el contenido de fenoles, flavonoides y antioxidantes, con mayores niveles de estos compuestos se encuentran en la miel producida por Plebeia spp y A. mellifera. La miel de las abejas sin aguijón era muy diferente de la de A. mellifera, especialmente de las especies de Plebeia. Un dendrograma de las cinco especies de abejas mostró la formación de tres grupos, uno de ellos formado por Apis mellifera, uno por el género Melipona (M. subnitida, M. quadrifasciata y M. scutellaris) y otro formado por Plebeia spp.M. scutellaris, this parameter varied from 4.67-52.56 mg GA equivalent / 100 g (mean 18.45 ± 11.41 mg. GA equivalent / 100 g), being lower than in honey from Apis, Fig. 1.In honey from M. quadrifasciata, M. subnitida and Plebeia spp., the antioxidants averages, according to this method were 32.96 ± 30.67, 16.19 ± 5.76 and 49.91 ± 21.36 mg GA equivalent / 100 g, respectively. Statistically significant correlations (p < 0.01) were observed between the content of total phenolics and FRAP (r = 0.814) and between the total flavonoid content and FRAP (0.795), demonstrating, again, the contribution of these compounds in the antioxidant activity of honey. There was also a statistically significant correlation between the content expressed by FRAP and the antioxidant content by DPPH expressed as GA (r = 0.584) and Q (r = 0.568), Table 2.
Detection of antioxidant compounds by TLCRegarding the identification of ant...