| Popis: |
Ground seeds from three species of the genus Passiflora, P. ligularis, P. edulis Sims fo edulis, and P. mollissima, were obtained by extraction, drying, grinding, and sieving, and their physicochemical properties (morphology, hardness, and proximal analysis) were compared to those of commercial exfoliant seeds from passion fruit. Particle sizes between 0.5 and 1 mm were obtained, and their properties were similar to the commercial product except for the extractable material content that was higher. Subsequently, prototypes of an exfoliating cosmetic product were developed by using the ground seeds as the main active ingredient. Rheology characterization of samples enables to verify that the particles have minor effects on emulsion properties and that the emulsion is stable even after thermal treatment. In particular, the pH of the emulsion decreased when using the obtained ground seeds. This is consistent with the extraction and solvation of organic acids into the emulsion, in particular, alpha-hydroxy acids, which are present in high concentrations in Passiflora species. This indicates that the prepared emulsions could have a synergic chemical and physical exfoliating activity and could be used in cosmetic products. |
