The Scientific World Journal

Research Article

Determination of Volatile Compounds in Four Commercial Samples of Japanese Green Algae Using Solid Phase Microextraction Gas Chromatography Mass Spectrometry

Table 1

Volatile compounds of different green algae samples presented as relative ratios compared to the internal standard ethyldecanoate.


No.	Volatile compounds	Formula	Class	Origin	Odor description	RI	Relative contents (% averaged GC peak area ratio ())
No.	Volatile compounds	Formula	Class	Origin	Odor description	RI	Okayama	STD	Tokushima	STD	Ehime	STD	Shizuoka	STD

1	Dodecane	C₁₀H₂₂	Alkane		Alkane (B)	1185	ND		ND		ND		1.2	0.0010
2	Tridecane	C₁₃H₂₈	Alkane	Fatty acids	Alkane (B)	1297	0.6	0.0003	0.6	0.0008	ND		23.2	0.0298
3	2,2,6-Trimethylcyclohexanone	C₉H₁₆O	Ketone	Carotenoids	Camphoraceous tobacco notes; thujone-like (A)	1308	0.7	0.0011	0.7	0.0026	ND		ND
4	Tetradecane	C₁₄H₃₀	Alkane	Fatty acids	Alkane (B)	1397	3.9	0.0020	11.4	0.0097	7.1	0.0158	6.0	0.0065
5	Tetradecene	C₁₄H₂₈	Alkene			1444	0.5	0.0013	0.9	0.0005	2.1	0.0025	ND
6	Pentadecane	C₁₅H₃₂	Alkene		Alkane (B)	1502	83.6	0.0622	251.1	0.1181	420.5	0.6057	ND
7	(E,E)-3,5-Octadien-2-one	C₈H₁₂O	Ketone	Fatty acids, carotenoids	Almond (C)	1517	ND		ND		ND		ND
8	Benzaldehyde	C₇H₅O	Aldehyde	Amino acids	Sweet, strong almond (A) almond, burnt sugar (B)	1517	1.7	0.0028	2.3	0.0068	0.9	0.0015	3777.3	7.4504
9	Pentadecene isomer 1	C₁₅H₃₀	Alkene			1523	2.4	0.0028	3.6	0.0025	4.7	0.0057	11.7	0.0326
10	Pentadecene isomer 2	C₁₅H₃₀	Alkene			1546	0.7	0.0011	2.3	0.0025	1.0	0.0010	0.5	0.0028
11	Dimethyl sulfoxide	C₂H₆OS	Sulfur compound	Amino acids		1557	8.2	0.0457	16.5	0.0944	8.0	0.0500	12.3	0.0221
12	(E,Z)-3,5-Octadien-2-one	C₈H₁₂O	Ketone	Fatty acids, carotenoids	Melon-like (C)	1567	2.7	0.0100	2.1	0.0065	0.6	0.0052	0.3	0.0029
13	Pentadecene isomer 3	C₁₅H₃₀	Alkene			1576	ND		ND		ND		5.1	0.0085
14	2,6,6-Trimethyl-2-hydroxycyclohexanone	C₉H₁₆O₂	Ketone	Carotenoids	Sweet tobacco-like aroma with herbaceous undertones (A)	1594	8.6	0.0237	9.6	0.0223	4.1	0.0053	ND
15	Hexadecane	C₁₆H₃₄	Alkane		Alkane (B)	1601	4.3	0.0089	5.6	0.0122	7.7	0.0144	28.2	0.0563
16	-Cyclocitral	C₁₀H₁₆O	Aldehyde	Carotenoids	Fresh (B)	1612	3.5	0.0085	3.5	0.0074	1.4	0.0010	ND
17	Hexadecene isomer 1	C₁₆H₃₂	Alkene			1619	1.2	0.0010	2.5	0.0027	2.1	0.0025	ND
18	Hexadecene isomer 2	C₁₆H₃₂	Alkene			1624	0.9	0.0024	1.1	0.0026	2.2	0.0004	ND
19	Safranal	C₁₀H₁₄O	Aldehyde	Carotenoids		1637	ND		ND		ND		ND
20	Heptadecane	C₁₇H₃₆	Alkane		Alkane (B)	1707	56.1	0.0610	25.2	0.0936	25.5	0.2227	12.4	0.0993
21	7-Heptadecene	C₁₇H₃₄	Alkene			1722	2909.7	1.0740	4003.3	3.3306	3954.3	5.5587	155.5	0.3312
22	Heptadecene isomer 1	C₁₇H₃₄	Alkene			1733	1.8	0.0193	ND		12.0	0.0030	7.0	0.0169
23	Heptadecadiene isomer 1	C₁₇H₃₂	Alkene			1757	103.4	0.0604	139.2	0.1109	148.7	0.1725	64.3	0.1246
24	Heptadecadiene isomer 2	C₁₇H₃₂	Alkene			1766	1.0	0.0021	1.2	0.0018	0.5	0.0047	0.7	0.0015
25	Heptadecadiene isomer 3	C₁₇H₃₂	Alkene			1769	4.3	0.0022	2.2	0.0011	0.8	0.0074	0.7	0.0104
26	Heptadecadiene isomer 4	C₁₇H₃₂	Alkene			1772	3.8	0.0037	5.3	0.0036	5.9	0.0041	1.1	0.0198
27	Heptadecadiene isomer 5	C₁₇H₃₂	Alkene			1779	0.8	0.0022	ND		0.3	0.0059	0.5	0.0091
28	Octadecane	C₁₈H₃₈	Alkane		Alkane (B)	1801	3.0	0.0051	1.6	0.0042	3.2	0.0189	2.1	0.0059
29	Octadecene	C₁₈H₃₆	Alkene			1817	11.2	0.0072	12.8	0.0059	18.1	0.0085	0.9	0.0081
30	-Ionone	C₁₃H₂₀O	Ketone	Carotenoids	Warm, woody, violet-floral (A)	1842	4.6	0.0039	5.6	0.0139	1.8	0.0085	ND
31	Nonadecane	C₁₉H₄₀	Alkane		Alkane (B)	1898	2.9	0.0119	1.1	0.0039	2.0	0.0029	0.7	0.0033
32	-Ionone	C₁₃H₂₀O	Ketone	Carotenoids	Warm, woody, dry (A)	1927	12.5	0.1087	15.7	0.0144	5.9	0.0040	0.7	0.0031
33	Maltol	C₆H₆O₃	Ketone		Caramel-butterscotch (A) caramel (B)	1960	0.6	0.0082	ND		ND		1.0	0.0059
34	-Ionone epoxide	C₁₃H₂₀O₂	Ketone	Carotenoids	Sweet berry (A)	1980	2.1	0.0181	2.8	0.0025	0.9	0.0006	ND
35	Methyl tetradecanoate	C₁₅H₃₀O₂	Ester		Faint onion, honey (A), orris (A) (B)	2010	0.9	0.0051	0.0	0.0000	1.3	0.0017	1.7	0.0036
36	Pentadecanal	C₁₅H₃₀O	Aldehyde		Fresh (B)	2034	1.8	0.0103	3.1	0.0033	1.8	0.0103	ND
37	6,10,14-Trimethyl-2-pentadecanone	C₁₈H₃₆O	Ketone	Carotenoids		2139	2.9	0.0168	6.7	0.0174	7.0	0.0160	7.4	0.0427
38	Hexadecanoic acid, methylester	C₁₇H₃₄O₂	Ester	Fatty acids		2217	5.2	0.0210	2.2	0.0038	9.0	0.0133	2.2	0.0029
39	Dihydroactinidiolide	C₁₁H₁₆O₂	Ketone	Carotenoids	Musky or coumarin-like (A)	2347	3.0	0.0363	8.4	0.0199	4.2	0.0022	0.4	0.0034
40	Methyl linolenate	C₁₉H₃₂O₂	Ester	Fatty acids		2566	4.1	0.0390	2.7	0.0063	7.3	0.0268	3.4	0.0057
41	Phytol	C₂₀H₄₀O	Alcohol	Chlorophyll	Faint floral (A) flower (B)	2580	2.8	0.0191	1.2	0.0050	0.9	0.0023	0.7	0.0071

(A) Food and Agriculture Organization of the united nations (http://www.fao.org), (B) Flavornet (http://www.flavornet.org), and (C) Hu and Pan, 2000 [14].