| Texto completo | |
| Autor(es): |
Martins, Manoela
;
Stanisic, Danijela
;
Dos Santos, Catarina
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Anais da Academia Brasileira de Ciências; v. 96, n. 4, p. 15-pg., 2024-01-01. |
| Resumo | |
Eugenia punicifolia (Kunth) DC (Myrtaceae) is a folk medicinal plant in the Brazilian Cerrado with antioxidant, anti-inflammatory, antinociceptive, antiulcerogenic activities, etc., usually attributed to its phenolic compounds. Since these compounds are sensitive to heat and light, and to increase their applications, Hydroethanolic Extracts E. punicifolia (HEEP, EtOH:H2O 70% v/v) were encapsulated by freeze-drying in xanthan gum (mesh 80, HEEPX80; mesh 200, HEEPX200) in ratio 1:1(w/w). Flavonoids had the highest encapsulation efficiency in HEEPX80, with a total flavonoid content of 55.56%. The release profile at different pH levels showed that pH = 4.5, a relevant antioxidant activity for HEEPX80 and HEEPX200. Also, in HEEP-modified release, higher antioxidant activity was observed in more acidic media (pH 4.5) than in a more neutral medium (pH 7.4). From these results, we could infer that HEEP encapsulations with Xanthan gum could be a good alternative for preserving antioxidants in these extracts. (AU) | |
| Processo FAPESP: | 15/22528-2 - CARACTERÍSTICAS FÍSICO-QUÍMICAS E ANTIOXIDANTES da Eugenia punicifolia encapsulada COM GOMA XANTANA |
| Beneficiário: | Manoela Martins |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |
| Processo FAPESP: | 17/15610-0 - Potencialidades biológicas em Myrtaceae |
| Beneficiário: | Catarina dos Santos |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |