Journal
FOOD RESEARCH INTERNATIONAL
Volume 51, Issue 1, Pages 188-194Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.foodres.2012.11.034
Keywords
Mango; Mangifera indica L.; Hydrolyzable tannins; Polyphenols; MALDI-TOF/TOF MS
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Funding
- ISCIII [CD09/00068]
- Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico [243724]
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Hydrolyzable tannins (HT) are secondary metabolites belonging to the family of polyphenols and for which different health effects have been described. Mango (Mangifera indica L) has been described as a source of HT by LC-MS analysis. In the present work we characterized HT profile in the peels of the Mexican 'Ataulfo' mango, a by-product of an industrial process, by MALDI-TOF MS. Two cationizing agents were employed, Na and Cs, allowing the detection of large molecules of gallotannins from penta to trideca-O-galloylglucose. This is a faster analysis than LC-MS, and without the use of solvents. The structures suggested for HT were confirmed by MALDI-TOF/TOF MS analysis, in those peaks with enough intensity. This work shows that peels of 'Ataulfo' mango are a rich source of HT, as well as the validity of MALDI-TOF/TOF MS for the analysis of this kind of compounds. (C) 2012 Elsevier Ltd. All rights reserved.
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