“…Gliadin (isolated from wheat) and 8-anilino-1-naphthalenesulfonate (ANS) were obtained from Sigma-Aldrich (USA). All of flavonoids including wogonin (1), chrysin (2), baicalein (3), galangin (4), kaempferol (5), luteolin (6), kaempferide (7), quercetin (8), isorhamnetin (9), myricetin (10), hyperoside (11), quercetin 3-rhamnoside (12), rutin (13), vitexin (14), baicalin (15), genistein (17), glycitein (18), daidzein (19), formononetin (20), biochanin A (21), calycosin (22), sophoricoside (23), genistin (24), puerarin (25), liquiritin (26), hesperitin (27), taxifolin (28), farrerol (29), naringenin (30), naringin (31), neohesperidin (32), dihydromyricetin (33), and epigallocatechin gallate (34) were purchased from Aladdin (Shanghai, China). Among them, the purity of compounds 13, 17, 18 and 32 was 97%, that of compounds 15 and 16 was 99% and that of the remaining flavonoids was 98%.…”