Producción Científica Profesorado

Identification of Anthocyanins in Red Grape, Plum and Capulin by MALDI-ToF MS



Galan Vidal, Carlos Andres

2012

Castaneda-Ovando, A; Sedo, O; Havel, J; Pacheco, L; Galan-Vidal, CA; Lopez, EC., JOURNAL OF THE MEXICAN CHEMICAL SOCIETY, Año 2012 Volume: 56 Issue: 4 Pages: 378-383 ISSN: 1870-249X


Abstract


A simple and fast method was developed to identify anthocyanins in red grapes, plums and capulins by MALDI-ToF MS. Three different matrices were used: alpha-CHCA (alpha-cyano-4-hydroxycinnamic acid), THA (2',4',6'-trihydroxyacetophenone) and DHBA (2,5-dihydroxybenzoic acid). Post-Source Decay (PSD) fragment detection allowed studying the structure of compounds detected. Deprotonated anthocyanin species were assigned in capulin ([Cyanidin-3-glucoside-deprotonated] K+ and [Cyanidin-3-rutinoside-deprotonated]K+), due to these compounds also can be ionized in form of potassium adducts combined with a deprotonation.



Producto de Investigación




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