Soxhlet Extraction versus Hydrodistillation Using the Clevenger Apparatus: A Comparative Study on the Extraction of a Volatile Compound from Tamarindus indica Seeds

Table 2

Gas chromatography-mass spectrometry result of the EOS of tamarind seed obtained from the two methods.

S/N	Compounds	Formulae	MW	Sample %
				HDC	SE
1	o-Xylene	C8H10	106	0.77	0
2	p-Xylene	C8H10	106	0.75	0.08
3	Hydrazinecarboxylic acid, phenylmethyl est	C8H10N2O2	166	-	0.06
4	3-tert-Butyl-5-chloro-2-hydroxybenzophenone	C17H17ClO2	288	1.29	—
5	Benzeneethanol,alpha-, beta-dimethyl-	C10H14O	150	—	0.14
6	Benzene, 1,2,4-trimethyl	C9H12	120	1.34	—
7	Benzene, 1,2,3-trimethyl	C9H12	120	—	0.16
8	Dodecane	C12H26	170	1.6	—
9	Dodecane	C9H12	120	3.08	—
10	1-Decyne	C10H18	138	—	0.2
11	1-Hexanol, 2-ethyl-	C8H18O	130	—	0.19
12	2H-pyran, tetrahydro-4-methyl-2-(2-methyl	C10H18O	154	1.04	—
13	Oxalic acid, isobutyl nonyl ester	C15H28O4	272	—	0.14
14	cis-3-Methylcyclohexanol	C7H14O	114	1.67	—
15	2-Oxepanone, 7-methyl-	C7H12O2	128	—	0.28
16	Benzene, 1,2,3-trimethyl-	C9H12	120	2.75	—
17	Tridecane	C13H28	184	—	0.3
18	Cyclohexane, (1-methylpropyl)-	C10H20	140	1.09	—
19	2-Bromo dodecane	C12H25Br	248	—	0.47
20	Benzene, 2-propenyl-	C9H10	118	0.55	—
21	Sulfurous acid, 2-propyl tridecyl ester	C16H34O3S	306	—	0.16
22	Benzene, 1-methyl-3-propyl	C10H14	134	1.55	-
23	Hexadecane	C16H34	226	—	0.55
24	Spiro[3.5]nona-5,7-dien-1-one, 5,9,9-trimet	C12H16O	176	2.39	—
25	Vinyl 10-undecenoate	C13H22O2	210	—	0.11
26	Naphthalene, decahydro-, trans	C10H18	138	1.75	—
27	1-Hexadecanol	C16H34O	242	—	0.54
28	Bicyclo[3.1.1]hept-2-en-6-ol, 2,7,7-trimeth	C12H18O2	194	0.93	—
29	Hexadecanoic acid, methyl ester	C16H32O2	256	—	1.18
30	p-Cymene	C10H14	134	0.84	—
31	n-Hexadecanoic acid	C16H32O2	256	—	8.16
32	Benzene, 1-ethyl-2,3-dimethyl	C10H14	134	2.22	—
33	Tritetracontane	C43H88	604	—	1.69
34	Undecane	C11H24	156	1.97	—
35	i-Propyl 14-methyl-pentadecanoate	C19H38O2	298	—	1
36	Benzene, 1,2,4,5-tetramethyl-	C10H14	134	1.11	—
37	1-Eicosanol	C20H42O	298	—	0.63
38	2,4-Dimethylstyrene	C10H12	132	0.21	—
39	9,12-Octadecadienoic acid, methyl ester	C19H34O2	294	—	5.84
40	2-Naphthalenol, 1,2-dihydro-, acetate	C12H12O2	188	1.07	—
41	11-Octadecenoic acid, methyl ester	C19H36O2	296	—	3.94
42	Nonanoic acid	C9H18O2	158	0.26	—
43	Tetradecanoic acid, 12-methyl-, methyl ester	C16H32O2	256	—	0.65
44	Naphthalene, 2-methyl-	C11H10	142	0.14	—
45	9,12-Octadecadienoic acid (Z, Z)-	C18H32O2	280	—	11.82
46	2,4-Decadienal, (E, E)-	C10H16O	152	0.16	—
47	cis-Vaccenic acid	C18H34O2	282	17.16	17.6
48	Hexadecanoic acid, methyl ester	C17H34O2	270	0.26	—
49	Oleic acid	C18H34O2	282	—	4.54
50	n-Hexadecanoic acid	C16H32O2	256	11.53	—
52	Phytol, acetate	C22H42O2	338	1.12	—
53	10-Undecen-1-al, 2-methyl	C12H22O	182	—	0.72
54	Cyclopropaneoctanoic acid, 2-[[2-[(2-ethyl	C22H38O2	334	0.32	—
55	7-Hexadecenal, (Z)-	C16H30O	238	—	1.02
56	9-Octadecenoic acid (Z)-, methyl ester	C19H36O2	296	0.42	—
57	9,12-Octadecadienoic acid (Z, Z)-	C18H32O2	280	23.72
58	Hexadecanal, 2-methyl-	C17H34O	254	—	0.87
59	1,2-15,16-Diepoxyhexadecane	C16H30O2	254	—	2.25
60	Octadecanoic acid	C18H36O2	284	3.81	—
61	Undecanoyl chloride	C11H21ClO	204	0.9	—
62	Hexadecanoic acid, 2-hydroxy-1- (hydroxym	C19H38O4	330	—	1.47
63	Diisooctyl phthalate	C24H38O4	390	0.53	1.76
64	gamma-Tocopherol	C28H48O2	416	1.05	5.2
65	beta-Sitosterol	C29H50O	414	4.53	12.71
66	Cholest-22-ene-21-ol, 3,5-dehydro-6-metho	C33H54O3	498	—	1.02
67	cis-13,16-Docasadienoic acid	C22H40O2	336	1.94	—
68	Z, Z-3,13-octadecedien-1-ol	C18H34O	266	—	2.24
69	9-Octadecenoic acid (Z)-, 2-hydroxy-1-(hyd	C21H40O4	356	0.43	—
			Total	98.25	100

MW- molecular weight in gram, HDC- hydrodistillation with the Clevenger, SE- Soxhlet extraction.