Screening of Mango (Mangifera indica L.) Cultivars for Their Contents of Flavonol O- and Xanthone C-Glycosides, Anthocyanins, and Pectin
- Publication Type
- Journal contribution (peer reviewed)
- Authors
- Berardini, N.; Fezer, R.; Conrad, J.; Beifuss, U.; Carle, R.; Schieber, A.
- Year of publication
- 2005
- Published in
- J. Agric. Food. Chem.
- Band/Volume
- 53/5
- DOI
- 10.1021/jf0484069
- Page (from - to)
- 1563-1570
With respect to their browning potential and in consideration of a combined recovery of pectin and phenolic compds., peels of 14 cultivars and the flesh of nine cultivars of mango (Mangifera indica L.) fruits were analyzed for their contents of flavonol O- and xanthone C-glycosides by high-performance liq. chromatog. (HPLC)-diode array detection-electrospray ionization mass spectrometry (ESI-MS). While total amts. of up to 4860 mg/kg dry matter demonstrated the peels to be a rich source of phenolic compds., only traces could be detected in the flesh. The profile of flavonol glycosides of the peels proved to be highly characteristic and may therefore serve as a tool for authenticity control of mango puree conc., which is often produced from unpeeled fruits and represents an important intermediate for the prodn. of mango nectars. Two compds. were isolated by preparative HPLC, and their structures were elucidated on the basis of ESI-MS as well as NMR spectroscopy, establishing the two compds. as rhamnetin 3-O-ß-galactopyranoside and rhamnetin 3-O-ß-glucopyranoside, resp. In the peels of red-colored cultivars, cyanidin 3-O-galactoside and an anthocyanidin hexoside so far not reported in mango could tentatively be identified. The contents and degrees of esterification of pectins extd. from the lyophilized peels ranged from 12.2 to 21.2% and from 56.3 to 65.6%, resp., suggesting mango peels also as a promising source of high-quality pectin