Analyte Molecular ion (M+H)+ Cone Voltage (V) Collision energy (eV) Rubropunctatin 357 15 -35 Monascorubrin 385 15 -35 rubropunctamine 375 15 -35 monascorubramine 382 15 -35 Monascin 359 15 -35 Ankaflavin 387 15 -35 Monocolin K 427 15 -35

Table 1: LCMS Parameters for Monascus pigments analysis.