Field Efficacy of Nicotiana tabacum L. var Virginia Extract against Coffee Borer Beetle (Hypothenemus hampei) Attacking Coffee Berries in Plantation Area
Table 2
The GC-MS† spectral analysis of EHRE-Nt‡.
No.
RT§ (min)
Name of the compound
Molecular formula
Molecular weight
Peak area (%)
1
12.76
Nicotine
C10H14N2
162
49.18
2
28.21
Hexadecanoic acid, methyl ester
C17H34O2
270
1.80
3
28.66
Hexadecanoid acid (Palmitic acid)
C16H32O2
256
2.01
4
28.73
Hexadecanoic acid, ethyl ester
ýC18H36O2
284
2.06
5
29.14
Methyl 10-trans,12-cis-octadecadienoate
C19H34O2
294
0.62
6
29.19
11-Octadecanoic acid, methyl ester
C19H36O2
296
2.43
7
29.38
Methyl 9-cis,11-trans-octadecadienoate
C19H34O2
294
0.72
8
29.41
Methyl 9-Octadecenoate
C19H36O2
296
2.64
9
29.56
Methyl stearate
C19H38O2
298
0.47
10
29.76
9,12-Octadecadienoic acid (Linoleic acid)
C18H32O2
280
29.01
11
31.46
Methyl 20-methyl-heneicosanoate
C23H46O2
354
0.91
12
31.63
13-Docosenoic acid
C22H42O2
338
1.86
13
31.77
Ethyl pentadecanoate
C17H34O2
270
0.53
14
32.73
15-Tetracosenoic acid, methyl ester
C25H48O2
380
1.89
15
34.14
22-Tricosenoic acid
C23H44O2
352
1.91
16
35.72
Stigmastan-3,5-diene
C29H48
396
1.96
†Gas chromatography-mass spectrometry analysis was conducted at the regional health laboratory (Labkesda), special capital region (DKI) of Jakarta. No.: 2.3/1582. ‡The ethanolic heat reflux extract of N. tabacum L. var Virginia origin of Ponorogo. §Retention time for each detected compound expressed in minutes.
