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Targeting human skin health: bioactive evaluation of acorn shell and red grape pomace extracts against pathogens and skin cells
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Orientador(es)
Resumo(s)
The agricultural and food sectors generate substantial amounts of by-products that are usually discarded as waste. However, agri-food by-products, rich in many bioactive compounds (BCs), can find several applications while promoting sustainability. Acorn shell (AS) and red grape pomace (RGP) stand out as valuable sources of BCs. To be used in human skin, the biological properties of these by-products need to be investigated. Therefore, this study explored the chemical composition of AS and RGP extracts and evaluated their concentration-dependent effects on key pathogenic (Staphylococcus aureus) and non-pathogenic (Staphylococcus epidermidis) bacteria of the skin microbiota, as well as on resident skin cells (keratinocytes) and skin cancer cells. The AS extract, rich in phenolic acids and gallotannins, and RGP extract, abundant in flavonoids, demonstrated significant antimicrobial activity by inhibiting bacterial growth and biofilm formation (p
Descrição
Palavras-chave
Acorn shell Agri-food by-products Bioactive compounds Bioactive extracts Red grape pomace Skin applications
Contexto Educativo
Citação
Oliveira, C. S., Melo, A., Ribeiro, T., & Pintado, M. et al. (in press). Targeting human skin health: bioactive evaluation of acorn shell and red grape pomace extracts against pathogens and skin cells. Fitoterapia, 186, Article 106798. https://doi.org/10.1016/j.fitote.2025.106798