Determination of polyphenols in five Amazonian species with antioxidant potential

The Ecuadorian Amazon Region (RAE) represents one of the most biodiverse areas of the planet and it is a source of secondary metabolites for the pharmaceutical, cosmetic and functional foods sectors. The present study, for the first time, focuses on the determination of polyphenolic compounds in extracts of five Amazonian species: Caryodaphnopsis tomentosa, Palicourea stenostachya, Palicourea schunkei, Schizocalyx bracteosus and Warszewiczia coccinea. The biological activity of polyphenols is related to their antioxidant character and it is relevant in the identification of new bioactive compounds. The hydroalcoholic extracts, considering a variety of red wine as reference, have presented in different quantities, a relevant presence of polyphenols, applying the Folin-Ciocalteu technique. Extracts of species C. tomentosa, S. bracteosus, W. coccinea and leaves of P. stenostachya, have yielded results superior to twice the value of the pattern used. P. stenostachya and P. schunkei root extracts showed slightly lower amounts of total polyphenols if compared with the standard, however, has been found an important presence of polyphenols that may contribute to their antioxidant activity. This result, although representing a preliminary test, establishes important preliminary findings for the phytochemical study of the above mentioned Amazonian species

• Glavni avtor: Radice, Matteo (author)
• Drugi avtorji: Bravo Sánchez, Luis Ramón (author), Pérez Quintana, Manuel (author), Cerda Grefa, Jofre Bladimir (author), Tapuy, Andrea (author), Riofrio Carrión, Andrea (author), Neill, David Alan (author), Chiurato, Matteo (author)
• Format: article
• Jezik: spa
• Izdano: 2017
• Teme: biodiversidad amazónica; Caryodaphnopsis tomentosa; Palicourea stenostachya; Palicourea schunkei; Schizocalyx bracteosus; Warszewiczia coccinea; Folin-Ciocalteu; polifenoles; amazonian biodiversity; Palicourea stenostachya,; poliphenols
• Online dostop: https://revistas.uea.edu.ec/index.php/racyt/article/view/72