. 2021 May 27;26(11):3221. doi: 10.3390/molecules26113221

Table 4.

Tentative identification, characterization, and concentration of major compounds identified in NSO and GSO extracts.

Peak No.	R_t (min)	UV λ_max (nm)	[M + H]⁺ (m/z)	Compound	Concentration μg/mL Oil
Peak No.	R_t (min)	UV λ_max (nm)	[M + H]⁺ (m/z)	Compound	NSO	GSO
1	12.15	275	139	p-Hydroxybenzoic acid	0.807	0.971
2	12.66	260	342	Norargemonine	1.167	-
3	12.75	280	291	Catechin	-	0.987
4	13.61	280	169	Vanillic acid	-	0.799
5	13.92	320	181	Caffeic acid	-	0.807
6	16.10	321	165	p-Coumaric acid	-	1.749
7	16.82	322	195	Ferulic acid	-	1.519
8	17.40	350, 260	755	Kaempferol-rhamnoside-diglucoside	-	1.118
9	18.77	320	517	Dicaffeoylquinic acid	-	1.110
10	20.13	320	517	Dicaffeoylquinic acid	-	0.872
11	20.51	290	194	Thymol derivative	17.105	-
12	21.86	280	867, 291	Procyanidin trimer possibly C2 (Catechin derivative)	-	1.413
13	23.29	350, 260	755	K	2.191	-
14	23.4	280	867, 291	Procyanidin trimer (Catechin derivative)	-	2.281
15	23.75	280	375	Hydroxymatairesinol	6.687	5.852
16	24.00	280	358	Matairesinol	10.692	4.337
17	24.21	280	1099, 1085	Tanin	14.656	2.748
18	24.32	280	375	Isohydroxymatairesinol	12.076	6.990
19	24.59	280	1120	Tanin (Catechin derivative)	3.927	3.878
20	24.99	290	150	Tymol	10.561	-
21	25.51	280	414	Tymol derivative	8.382	-
22	26.03	280	1142	Tanin	11.364	-
23	26.18	280	1040	Tanin	7.645	-