Keywords
centesimal composition
antioxidants vitamins
pollen analysis
How to Cite
Abstract
Pollen composition is variable depending on the floral origin. The purpose of present study was to correlate the centesimal composition and the antioxidants vitamins with the floral origin of dried bee pollen samples collected from the region of the Vale do Ribeira, São Paulo, Brazil. Six batches of dried bee pollen pellets were analyzed. Vitamin C was quantified by titration technique, β-carotene by open column chromatography, and vitamin E by HPLC. The proximate composition was determined following the methodology recommended by AOAC (1995), and the floral characterization was performed under microscopy observation. Vitamin contents varied from 114 to 340μg/g for vitamin C; from16 to 39μg/g for vitamin E; from 3 to 78μg/g for β-carotene. The analyzed samples were in compliance with the Brazilian legislation limits regarding to the proximate composition. The pollen types highly varied within the samples and some of them were strongly correlated with the vitamin C (Myrtaceae), β-carotene (Arecaceae, Cecropia and Fabaceae) and lipids (Arecaceae and Fabaceae). On the other hand, other types were negatively correlated, such as Mimosa caesalpiniaefolia and Poaceae types with β-carotene, Arecaceae type with proteins and Mimosa caesalpineafolia type with lipids.
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