Comparison of Ethanolic and Aqueous-Polyethylenglycolic Propolis Extracts: Chemical Composition and Antioxidant Properties

Table 1

Mass spectrometry parameters for the analysis of phenolic compounds and quinic acid.

Compound	Parent ion (m/z)	Daughter ion (m/z)	Cone voltage (V)	Collision chamber energy (eV)
p-Coumaric acid	163	93	28	22
Caffeic acid	179	107	36	22
Quinic acid	191	85	40	26
Sinapic acid	223	208	32	14
Apigenin	269	117	54	36
Galangin	269	171	50	30
Kaempferol	285	185	50	25
(+)-Catechin	289	123	60	34
Quercetin	301	151	48	20
Isorhamnetin	315	300	44	22
Chlorogenic acid	353	191	32	14
Vitexin	431,1	311	50	22
Avicularin	433	301	50	20
Phloridzin	435	273	42	14
Kaempferol-3-O-glucoside	447	284	54	28
Orientin	447	327	50	20
Hyperoside	463	300	50	26
Isorhamnetin-3-O-glucoside	477	314	60	28
Tiliroside	593,1	285	64	30
Rutin	609	300	70	38
Isorhamnetin-3-O-rutinoside	623	315	70	32
Rosmarinic acid	359	161	36	16