Table 2.

The compounds identified in incubation solutions at 0 min (M0) and 60 min (M1), respectively

Peaks	t R (min)	M0 [M+H]+	M1 [M+H]+	MS2	Identification
1	2.59	–	375	345	Di hydroxy tetramethoxyflavone
2	2.63	–	375	345	Di hydroxy tetramethoxyflavone
3	2.81	–	375	345, 331, 301	3′,4′-di hydroxy-5,6,7,8- tetramethoxy-flavone
4	3.16	–	389	359, 374, 341	6-hydroxy-5,7,8,3′,4′-pentamethoxy-flavone or 7-hydroxy-5,6,8,3′,4′-pentame-thoxyflavone
6	3.25	–	359	329	4′-hydroxy-5,6,7,8- tetramethoxyflavone
7	3.33	389	389	359, 374, 341	4′-hydroxy - 5,6,7,8,3′-pentamethoxyfla-vone or 3′-hydroxy- 5,6,7,8,4′-pentame-thoxyflavone
8	3.53	373	373	343, 312	Pentamethoxyflavone
9	3.60	359	359	329	Monohydroxy-tetramethoxyflavone
10	3.88	403	403	373	Nobiletin
11	4.25	373	373	343, 325	Tangeritin
12	4.53	389	389	359, 341, 374	Monohydryoxy- pentamethoxyflavone