Abstract

The present study was aimed at assessing the dry extracts from Cinchona Pubescens Valh  species, as a potential antioxidant raw  material for the cosmetics industry . The phenolic compound concentration in the extract and flavonoids were 30 mg GAE / g Hyp 2 mg / g.  The following flavonoids were identified in the extract: apigenin, quercetin, catechin and kaempherol. The antioxidant activity was determined by spectrophotometric methods ABTS and DPPH, expressed as IC50 (50% inhibition of radical oxidation) were: IC50 DPPH 42.00 ± 0.2 ug / ml and 88.00 ± 0.2 IC50 ABTS ug / ml.  In cosmetic formulations (gels and creams)  evaluated  through photochemiluminescence a significantly increased antioxidant potential was observed when compared to the base formula;  up to 15 times higher concentrations of the assay, the behaviour was higher when compared to a positive pattern formulated with dry extract of Camellia sinensis

Keywords: Cinchona pubescens Vahl, antioxidant activity, flavonoids, photochemiluminescence