Natural Bioactive Compounds from Orchard Biomass Waste and Cosmetic Applications
2025
Maria Roberta Bruno | Maria Ponticelli | Chiara Sinisgalli | Luigi Milella | Luigi Todaro | Immacolata Faraone
Antioxidants are crucial in counteracting the impact of free radicals, thereby preventing cell damage. Extracts from orange, apricot, and olive tree pruning, classified as by-products according to environmental laws, underwent examination of their antioxidant properties. In the present investigation, data on the antioxidant activity of extracts of these tree by-products were used to calculate the relative antioxidant capacity index (RACI). The latter made it possible to identify Apricot bark maceration extract as having the highest antioxidant index. Further analysis through UHPLC-MS enabled the identification of compounds known for their antioxidant activity, including catechin, epicatechin, and others. Cytotoxicity assays conducted on human hepatocellular carcinoma cell lines (HepG2) confirmed the safety of the chosen extract for cosmetic applications. The extract was then used to formulate a cosmetic cream, which subsequently underwent quality control and proved to be stable, of good consistency, and free of pathogens. The results show that developing a sustainable cosmetic cream prototype is a promising step toward realizing an environmentally friendly product in the circular economy context.
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