Matrix-assisted laser desorption ionization mass spectrometry analysis of grape anthocyanins

Matrix-assisted laser desorption ionization mass spectrometry (MALDI) was u sed as a tool for developing a rapid and efficient screening technique for the presence and identification of anthocyanins in grape skins. The anthocy anins of ten different grape varieties were extracted with a simple extract ion procedure. Each of the five red grape varieties exhibited a distinct ma ss spectrum. The most abundant anthocyanins detected were the monoglucoside s and the coumaroyl-monoglucosides of cyanidin, peonidin, delphinidin, petu nidin, and malvidin.