摘要

Phenolic compounds and antioxidant activities of four mango varieties cultivated in Brazil were analyzed. The profile of flavonol-O-glycosides and xanthone-C-glycosides was characterized in pulps from Haden, Tommy Atkins, Palmer, and Uba cultivars and in the agro-industrial residues from Uba variety by LC-ESI-MS analysis. The first three varieties were collected from conventional production, whereas Uba was obtained from organic production. The total phenolic content of the peels and seed kernel extracts was analyzed utilizing Folin-Ciocalteu's reagent. The aqueous-methanolic extracts of pulp, peel and seed kernels were analyzed for antioxidant activity (AA) by free radical-scavenging and reducing power. A total of 12 flavonoids and xanthones were identified in the pulps, peels and seed kernels, with larger amounts of these compounds being present in the organically grown Uba variety. The Uba mango pulp presented higher AA and the peel and seed kernel extracts showed higher AA than did a commercial standard.

  • 出版日期2008-10-1