کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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6398342 | 1330682 | 2013 | 7 صفحه PDF | دانلود رایگان |

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.
⺠Hydrolyzable tannins had not been analyzed in the peel of mango var. 'Ataulfo'. ⺠Gallotannins (up to 13 units) were found in mango var. 'Ataulfo' by MALDI-TOF/TOF MS. ⺠MALDI-TOF/TOF allows a faster analysis of hydrolyzable tannins in foods than LC-MS.
Journal: Food Research International - Volume 51, Issue 1, April 2013, Pages 188-194