Hydroxycinnamoyl or hydroxycinnamic acid may be lost during MSn analysis, and the presence of gentiobiose can be
deduced from the loss of 306 Da. Peak 78 was defined as 1,2-disinapoylglucoside, which has been previously reported. 1,2-Disinapoylglucoside shows an MS2 ion fragment at m/z 367 from the loss of 224 Da and MS3 fragments at m/z 352, 223,and 179 from losses of 15 Da (a methyl on sinapoyl), 144 Da (aglucosyl without H2O), and 188 Da (a sinapoyl without H2O),respectively.
Hydroxycinnamoyl or hydroxycinnamic acid may be lost during MSn analysis, and the presence of gentiobiose can be
deduced from the loss of 306 Da. Peak 78 was defined as 1,2-disinapoylglucoside, which has been previously reported. 1,2-Disinapoylglucoside shows an MS2 ion fragment at m/z 367 from the loss of 224 Da and MS3 fragments at m/z 352, 223,and 179 from losses of 15 Da (a methyl on sinapoyl), 144 Da (aglucosyl without H2O), and 188 Da (a sinapoyl without H2O),respectively.
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