Publication details
Identification of Anthocyanins in Red Grape, Plum and Capulin by MALDI-ToF MS
| Authors | |
|---|---|
| Year of publication | 2012 |
| Type | Article in Periodical |
| Magazine / Source | JOURNAL OF THE MEXICAN CHEMICAL SOCIETY |
| MU Faculty or unit | |
| Citation | |
| Web | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1870-249X2012000400004 |
| Keywords | MALDI-ToF MS; Grapes; Plums; Capulins; Deprotonated Anthocyanins |
| Description | 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. |