Phytochemical screening, antioxidant and antibacterial activities of some commercial extract of propolis
2018
This study investigated the chemical composition, flavonoids, phenolic compounds, antioxidant activity and antibacterial activity of commercial propolis extracts produced in the Sergipe and Alagoas States of Brazil as potential bioproducts for the food and pharmaceutical industries. Four samples were analyzed, three brown propolis extracts and one red propolis extract, and were characterized through phytochemical screening, chemical, chromatographic profile and antibacterial activity. Phytochemical analysis detected the presence of triterpenoids and phenolic compound in propolis extracts. Propolis extracts showed total phenolic content between 9 and 15% and total flavonoids >2%. Propolis extracts showed excellent antioxidant activity with inhibition of the Free radical DPPH˙ between 97 and 60%, which confirm the results obtained in total phenolics, total flavonoids content and antibacterial activity. The chromatographic profile showed differences for brown propolis samples and quite different from the red...
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