Table 2. Phenolic compounds identified in eluate EL70 using mass spectrometry detection.

[M-H]− (m/z)	MS2 ions (m/z)	Compound	Reference
247	134 179	Caffeic acid isoprenyl ester	[20]
253	143	Chrysin	[19]
253	118	p-Coumaric benzyl ester	[21]
255	107 151	Pinocembrin	[20]
269	117 107	Apigenin	[22]
269	134	Caffeic acid benezyl ester	[20]
283	179 135 161	Caffeic acid phenethyl ester	[23]
285	252 138 224 165	Pinobanksin-5-methyl-ether	[19]
285	165 185	Unknown
285	135 163	CA- and CO-derivate	[19]
295	134	Caffeic acid cinnamyl ester	[20]
299	179 135	CA-derivate	[19]
299	227 255	Luteolin-methyl-ether	[19]
299	284 151 164	Kaempferide	[21]
313	253 107	Pinobanksin-3-O-acetate	[20]
315	271 255	3-Prenyl-4-(2-methylpropionyl-oxy)-cinnamic acid	[21]
315	165 121	Rhamnetin	[24]
327	253	Pinobanksin-3-O-propionate	[20]
341	163 119	CO-derivate	[19]
341	253	Pinobanksin-3-O-butyrate	[20]
355	253	Pinobanksin-3-O-pentanoate	[20]
381	119 135 179 163	CA- and CO-derivate	[19]
404	294	Unknown
425	163	CO-derivate	[19]
455	163 193	FE- and CO-derivate	[19]
457	179 161 235 295 135	CA-derivate	[19]
471	193 179 235 135 175 161	CA- and FE-derivate	[19]

CA, caffeic acid; CO, coumaric acid; FE, ferulic acid.