Villagra E, Quintero E, Mero A, Guerrero LE, Morán-Pinzón JA, Palermo JA, Patiño CLP

Language: Spanish
References: 20
Page: 1-11
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ABSTRACT

Introduction: Chrysobalanus icaco L. (Chrysobalanaceae) is a shrub used in Latin American traditional phytotherapy, but in the province of Chiriquí its fruit has been reported to be used in food preserves, not for medicinal purposes.
Objective: Characterize the secondary metabolites present in Chrysobalanus icaco leaves and seeds and evaluate their in vitro biological activity.
Methods: The secondary metabolites present in extracts from leaves and immature and mature seeds of icaco were detected by phytochemical screening and purification with chromatographic techniques. Evaluation was then conducted of total polyphenolic content and total antioxidant activity of the leaf, seed and pulp infusion as well as its antibacterial activity in vitro.
Results: Phytochemical screening of the leaves found flavonoids, cardiotonic glycosides, triterpenes and steroids. Sugar mixtures were the most abundant components in immature seeds, whereas fatty acids were found in the endocarp (almond) of mature seeds. Total polyphenolic data about icaco extracts showed high contents of these metabolites in the dry leaf infusion. DPPH radical inhibition was also greater for icaco dry leaves, followed by immature leaf infusion. The dry leaf infusion and the pulp shake displayed the greatest inhibition against the Staphylococcus spp. strain in the antibacterial activity test.
Conclusion: Icaco dry leaves exhibited a high polyphenolic content, associated to their antioxidant and antibacterial activity. Fresh data were also contributed about the chemical composition of the seed. It was observed that the sugars initially detected in immature seeds are considerably lost as the fruit ripens.

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