Hypoglycemic, anti-glycation and antioxidant in vitro properties of two Vaccinium species from Macaronesia: A relation to their phenolic composition
| Autor: | Paula C. Castilho, Vítor Spínola, Joana Pinto |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Antioxidant
medicine.medical_treatment Medicine (miscellaneous) Vaccinium padifolium Faculdade de Ciências Exatas e da Engenharia 0404 agricultural biotechnology Nutraceutical Digestive enzymes inhibition Antioxidant activity Glycation medicine TX341-641 Food science Anti-glycation chemistry.chemical_classification Nutrition and Dietetics biology Chemistry Nutrition. Foods and food supply Polyphenols 04 agricultural and veterinary sciences biology.organism_classification medicine.disease Vaccinium cylindraceum 040401 food science Obesity Enzyme biology.protein Composition (visual arts) Glucosidases Food Science Vaccinium |
| Zdroj: | Journal of Functional Foods, Vol 40, Iss, Pp 595-605 (2018) Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| ISSN: | 1756-4646 |
| Popis: | Vaccinium cylindraceaeum (Azores blueberry) and V. padifolium (Madeira blueberry) are two Portuguese endemic species, which phytochemical composition and beneficial properties lack scientific validation. In this work, their potential in vitro inhibitory effects against key enzymes linked to type 2 diabetes and obesity and glycation of proteins were evaluated. Anthocyanins were predominant in fruits, while hydroxycinnamic acids (in particular 5-O-caffeoylquinic acid) and flavonoids were the main compounds in leaves. Vaccinium extracts showed effective inhibitions of glucosidases and glycation of proteins and mild activity towards α-amylase and pancreatic lipase (by comparison with reference compounds). Phenolic composition was strongly correlated with reported bioactivities. In fact, 5-O-caffeoylquinic can be considered one of the main hypoglycemic and anti-glycation agents of analysed extracts. Consumption of both Vaccinium species should be encouraged since berries could offer a dietary option in the prevention and control of diabetes and obesity, while leaves are good candidates for development of nutraceuticals. |
| Databáze: | OpenAIRE |
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