Chemical characterization and antioxidant potential of volatile oil from an edible seaweed Porphyra tenera (Kjellman, 1897)

Table 1 GC–MS spectra of Porphyra tenera volatile oil (PTVO) with tentative identified compounds

No.	Compounds	SI	RT	RA (%)
1	n-Hexanal	898	3.55	4.7
2	Dimethyl sulfoxide	891	4.15	3.8
3	2-Hexen-1-ol	911	4.40	2.6
4	4-Heptenal	813	5.18	0.7
5	Benzaldehyde	937	6.28	2.8
6	2 Octenal	642	6.53	2.4
7	1-Octen-3-ol	798	6.63	1.2
8	2,4-Heptadienal	697	6.88	0.5
9	n-Octanal	657	6.96	0.6
10	2,4-Heptadienal	811	7.11	2.1
11	Benzene acetaldehyde	844	7.70	0.8
12	E,E-2,4-Octadien-1-ol	689	8.20	1.0
13	2-Heptanone	534	8.81	3.8
14	2,6-Nonadienal	836	9.44	8.7
15	Piperitone oxide	665	9.53	1.4
16	beta-Cyclocitral	794	10.53	2.2
17	3,5-Octadiene	591	11.08	0.9
18	3-Dodecyne	667	11.23	1.6
19	Alpha-ionone	834	13.41	4.0
20	Neryl acetone	644	13.67	1.9
21	Trans-beta-ionone	794	14.17	20.9
22	Phenol	883	14.49	2.9
23	2(4H)-Benzofuranone	864	14.84	2.7
24	Tetradecanoic acid	818	17.42	3.2
25	Hexadecanoic acid	785	19.47	9.16
26	2-Hexadecen-1-ol	728	20.82	1.9
27	Benzoic acid	347	2.11	2.2
28	Hexanoic acid	422	22.85	2.0
29	9-Octadecenamide	501	23.16	1.9
30	Azetidine	449	24.28	5.6

No. compound number in order of elution, SI library search of purity value of a compound, RT retention time (min), RA relative area

ISSN: 2661-801X