Determinação in vitro do fator de eficácia fotoprotetora (fps) em extrato de matricaria recutita l.

Abstract

According with the damage caused by ultraviolet radiations exposed on earth’s surface, radiations are classified as UV-A(320-400 nm) UV-B(290-320 nm) and UV-C(100-200 nm), have as projection the well know sunblocks, having preparations of topic use, this ones can be calculated spectrophotometricaly. Some plants are used as photoprotectors by its simple action of photoprotection . In this study was evaluated the photoprotector activity of Matricaria recutita L plant, starting from the hidroalcoholic extract in sunblocks formulas , manipulated in the factors 30, 45 and 60. For the achievement of the calculations was utilized the methodology proposed by Mansur (1986a), starting from the spectrophotometry, and after the realization of the mathematical calculation by the determination of the absorbance. The analysis of the extract of the plant demonstrated that was significant the utilization of the plant for presenting high absorbance in function of high wave length located in the ultraviolet radiation zone(300-400 nm), which the product that fit in that zone was the FPS 30 and 45. Uniterms: Matricaria Recutita L, Sunblock, Spectrophotometry, FPS.