Actividad Fotoprotectora de Maracuyá (Passiflora edulis), Ishpingo (Ocete quixos) en Fototipos III para Elaboración de un Protector Solar

Abstract

The verification of photoprotective activity in vivo, with synergistic effect of creams from passion fruit leaves (P. edulis), Ishpingo (O. quixos), was carried out in the laboratories of Phytochemistry, Instrumental Analysis of the Faculty of Sciences of the ESPOCH. With the method of observation and scientific experimentation, the substances of interest that were studied were flavonoids and total cinnamates, in the fluid extracts and creams of each plant, which were quantified by spectrophotometry; the raw material, fluid extracts and finished product underwent quality control according to the specifications of the Ecuadorian Standard of Phytopharmaceuticals and the American Pharmacopoeia XXXI; the in vivo study was performed on volunteers with skin type III with forearm protector divided into areas with 6 experimental surfaces subjected to solar radiation under specific conditions applying the products to be evaluated with 10 microliter micropipettes, based on the method of efficacy in solar products COLIPA. In this research the creams presented the following values pH 5.4-5.9, viscosity 50-56cp, extensibility 4.1-4.5mm results that met the reference requirements; the creams presented the following photoprotective activities for O. quixos presented a SPF of 8, P. edulis SPF 4, and the combination of both presented a SPF 6. It is concluded that the creams presented photoprotective activities but there was no synergistic effect. It is recommended that cosmetics that include extracts of P. edulis, O. quixos have a slightly acid pH to ensure the affinity of the products for the skin.