Details

Autor(en) / Beteiligte

• Barreto, Jacqueline C
• Trevisan, Maria T. S
• Hull, William E
• Erben, Gerhard
• de Brito, Edy S
• Pfundstein, Beate
• Würtele, Gerd
• Spiegelhalder, Bertold
• Owen, Robert W

Titel

Characterization and Quantitation of Polyphenolic Compounds in Bark, Kernel, Leaves, and Peel of Mango (Mangifera indica L.)

Ist Teil von

• Journal of agricultural and food chemistry, 2008-07, Vol.56 (14), p.5599-5610

Ort / Verlag

Washington, DC: American Chemical Society

Erscheinungsjahr

2008

Quelle

MEDLINE

Beschreibungen/Notizen

• The contents of secondary plant substances in solvent extracts of various byproducts (barks, kernels, peels, and old and young leaves) in a range of Brazilian mango cultivars were identified and quantitated. The results show that the profiles of secondary plant substances such as xanthone C-glycosides, gallotannins, and benzophenones in different byproducts vary greatly but are fairly consistent across cultivars. The free radical scavenging activity of the solvent extracts was evaluated using a high-performance liquid chromatography-based hypoxanthine/xanthine oxidase assay and revealed dose-dependent antioxidant capacity in all extracts. Four (mangiferin, penta-O-galloyl-glucoside gallic acid, and methyl gallate) of the major phenolic compounds detected were also evaluated in additional in vitro bioassay systems such as oxygen radical absorbance capacity, 2,2-diphenyl-1-picrylhydrazyl, and ferric reducing ability of plasma. Mangiferin in particular, detected at high concentrations in young leaves (Coite = 172 g/kg), in bark (Momika = 107 g/kg), and in old leaves (Itamaraka = 94 g/kg), shows an exceptionally strong antioxidant capacity.