Metabolomic Characterization of Mango Cultivars Grown in Pakistan

Abstract

Mango fruit is a rich source of various macro and micro-nutrients. It has been reported to possess numerous polyphenolic secondary metabolites. Major mango polyphenols identified in terms of respective free-radical scavenging ability and concentration in fruit are mangiferin, quercetin, kaempferol, catechins, rhamnetin, anthocyanins, methyl gallate, gallic acid, ellagic acids, benzoic acid, and protocatechuic acid. Pakistan is a commercial producer of 25 to 30 mango varieties. However, limited research done in the arena of variety-specific phytochemical content analysis of mango cultivars grown in Pakistan. The present study analyzes polyphenolic metabolites of 3 mango cultivars namely Dussehri, Sindhri, and Chaunsa using RP-HPLC. Metabolite analysis revealed that Sindhri mango fruit contained a diverse array of polyphenolics compared to the other 2 varieties tested. We obtained well-separated peaks in chromatograms at 260 nm and 280 nm. HPLC chromatograms of Dussehri fruit at 260 nm and 280 nm significantly differed from Sindhri and Chaunsa fruit chromatograms which were superimposable. The data obtained in this study provided novel information regarding mango cultivar-specific phenolic metabolites.