Peak No Biomarkers Retention time (min) [M-H]- (m/z) Fragment ion (m/z) 1. Catechin 5.2 289 108.5             2. Myricetin 6.5 317 178.2, 136.5 3. Quercetin 7 301 178.2, 150.3, 120.6

Table 8: Fragments and TIC details of the biomarkers