Otimização do processo de obtenção de biomassa da microalga Arthrospira platensis Gomont e caracterização química para fins cosméticos

Abstract

Arthrospira platensis Gomont 1982, an update of the term Spirulina, is a microalgae that has many benefits and uses not only in the food sector, as an ingredient and functional active ingredient, but in the nutraceutical and cosmetic sector. The cultivation of this microalgae has been practiced for many years. We can mention the uses of microalgae: chemical products, materials, animal feed and nutraceutical food supplements, biofuels, pigments and polymers. For the environment, microalgae play an important role in generating and regulating energy, in addition to providing nutrients and oxygen to marine fauna. The work produced A. platensis biomass using a different cultivation process, with adapted reagents and obtained a standardized product for use in the cosmetic market. The work generated two chapters arising from this research. The first research was a comparative study of the qualitative and quantitative chemical composition of the biomass of the microalgae Arthrospira platensis grown in a closed system. The results demonstrated that, through physical-chemical analyses, the final quality of both biomasses obtained, have almost similar indices to each other and with results that can be comparable to food products already consumed on the market. The second research was the application of Microalgae Extract in a Natural Cosmetic Base for use in Skin Care as a sustainable alternative in skin care. The result of the second research obtained with the evaluation of the stability of the sample developed, was very satisfactory and through discussion, in line with other authors, it was possible to identify that the A. platensis Facial Cream has the possibility of being inserted in the cosmetic market, being produced using an accessible technique and with positive environmental impacts, associating the consumption of natural skin care products with ecologically correct production.