Table 2.

Identification of phenolic compounds in olive seeds from different cultivars by HPLC–DAD–MSⁿ in negative mode.

Peak No.	Compound Id.	RT (min)	λ (UV) (nm)	[M–H]−, m/z	Fragments
(1)	Tyrosol	14.77	234; 275	137	119, 106
(2)	Rutin	24.00	252; 355	609	301, 179
(3)	Nüzhenide	25.16	248; 275	685	1371, 731, 523
(4)	Luteolin-7-glucoside	25.45	256; 350	447	285
(5)	Oleuropein	26.43	245; 280	539	377, 307, 275, 223
(6)	Ligstroside	26.89	249	523	361, 291, 259