Publicação
A bioactive formulation based on Fragaria vesca L. vegetative parts: chemical characterisation and application in κ-carrageenan gelatin
| Resumo: | 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. |
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| Autores principais: | Dias, Maria Inês |
| Outros Autores: | Barros, Lillian; Fernandes, Isabel P.; Ruphuy, Gabriela; Oliveira, Beatriz; Santos-Buelga, Celestino; Barreiro, M.F.; Ferreira, Isabel C.F.R. |
| Assunto: | Fragaria vesca L. Vegetative parts Hydromethanolic/Aqueous extracts Microencapsulation Alginate kappa-Carrageen |
| Ano: | 2015 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| Resumo: | 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. |
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