Table 2.

Selected phenolic compounds of cranberry juice (CJ) and cranberry functional beverage (CFB)

Compound	Molecular Formula	MS precursor ion	MSMS ions	CJ (µg/100 mL)	CFB (µg/100 mL)
Quercitin pentoside*	C20H18O11	[M-H]−	151, 227, 243, 255, 271, 300	1962.9 ± 54.0	347.6 ± 10.7
Quercitin pentoside*	C21H20O11	[M-H]−	151, 179, 227, 255, 271, 300	542.6 ± 0.3	96.6 ± 0.9
Quercitin	C15H10O7	[M-H]−	107, 121, 151, 179, 227, 243	16.6 ± 0.1	< LOD
Procyanidin isomers*	C30H26O12	[M + H]+	123, 127, 139, 163, 287, 409	614.3 ± 11.0	628.1 ± 8.1
Epicatechin	C15H14O6	[M + H]+	123, 139, 207	945.0 ± 15.4	757.9 ± 12.9

Results are presented as means ± SDs; *calculated according to standard curves of appropriate aglycone; LOD level of detection