A bioactive formulation based on Fragaria vesca L. vegetative parts: chemical characterisation and application in κ-carrageenan gelatin

• Autor(a) principal: Dias, Maria Inês
• Data de Publicação: 2015
• Outros Autores: Barros, Lillian, Fernandes, Isabel P., Ruphuy, Gabriela, Oliveira, Beatriz, Santos-Buelga, Celestino, Barreiro, M.F., Ferreira, Isabel C.F.R.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10198/12184
• topic: Fragaria vesca L.; Vegetative parts; Hydromethanolic/Aqueous extracts; Microencapsulation; Alginate; kappa-Carrageen

A bioactive formulation based on the vegetative parts of the wild strawberry, Fragaria vesca L., was developed by using a microencapsulated extract (lyophilized infusion form). For that purpose, a process based on an atomization/coagulation technique with alginate as the wall material was applied. Among the tested hydromethanolic and aqueous extracts, both obtained from wild and commercial samples, the infusion of a wild species emerged as the most antioxidative one. The higher amounts of flavonols and flavan-3-ols found in the aqueous extracts seem to be responsible for this greater antioxidant activity. Furthermore, the developed bioactive formulation was applied in k-carrageenan gelatin, being observed that the antioxidant properties of the extract were preserved, as compared with the free form. Thus, the antioxidant activity of the Fragaria vesca L. vegetative parts was demonstrated, as well as the advantages of using microencapsulation to produce effective bioactive formulations.