Peak number   Compound   Mass spectral data   Retention time (min)   Relative
(%)
  1 2
3 4 5 6
7 8 9 10 11 12  
  3-Pentanone, 4- hydroxyl-4-methyl
Decane
2, 3-Octandione Pantolactone o-Cymol Undecane
2,4-Decadienoic acid   1-Dodecanol  3-Oxo-α-ionol Tetradecanoic acid   Hexadecanoic acid   9, 12-Octadecadienoic acid
31,38,43,53,59,70,83,101,112                                                
43,57,71,85,99,113,142
32,43,55,64,71,79,86,91,99,107,122,142                                  15,19,27,31,39,43,51,57,67,71,76,112,
130 ,
27,41,51,57,70,77,91,103,119,128,134                                    29,33,38,43,57,71,85,99,113,127,156
29,41,59,67,81,97,111,122,139,151,168   36,43,55,69,83,97,111,125,140,156,168,
185  29,43,53,77,91,97,108,117,123,135,152,165,175,193,208                                29,43,54,60,73,85,97,129,143,157,171,185,199,213,228                      43,60,73,83,97,115,129,143,157,171,185,199,213,220,227,236,256    41,55,67,81,95,109,123,137,149,164,182,196,280                                                         
  3.8 5.2
5.92 8.71 11.55 21.9
26.39 31.2 33.9   37.8   41.9   47.0
  8.37 3.53%
10.71% 6.09% 10.15% 2.71%
5.7% 4.8   7.7   13.3   5.9   8.3
Table 4: Volatile compounds in hexane extract from root stock of Alocasia indica identified by gas chromatography-mass spectrometry.