Table 4.
Determination and identification of volatile compounds in the fermented placenta via SPME-GC analysis.
| NO. | Chemical Compound | Formula | Area (%) | |
|---|---|---|---|---|
| SP | SP-BD | |||
| 1 | Hexane | C6H14 | 11.0 | 12.1 |
| 2 | Methylcyclopentane | C6H12 | n.d. | 7.8 |
| 3 | 1,3-dioxolane | C3H6O2 | 10.4 | n.d. |
| 4 | 4-Methylheptane | C8H18 | n.d. | 4.0 |
| 5 | 2,4-Dimethylheptane | C9H20 | n.d. | 2.6 |
| 6 | Acetone | C3H6O | 10.5 | 6.2 |
| 7 | 2,4-Dimethyl-1-heptene | C9H18 | 8.9 | 3.0 |
| 8 | 2-Butanone | C4H8O | 2.8 | n.d. |
| 9 | 2-Pentanone | C5H10O | 1.5 | n.d. |
| 10 | Dimethyl disulfide | C2H6S2 | 13.5 | n.d. |
| 11 | Ammonia | NH3 | 16.7 | n.d. |
| 12 | 2-Isobutyl-4,4-dimethyl-1,3-dioxan | C10H20O2 | n.d. | 26.0 |
| 13 | Decamethyl-cyclopentasiloxane | C10H30O5Si5 | 0.5 | n.d. |
| 14 | 4-Methyl-2-heptanone | C8H16O | 11.7 | 1.1 |
| 15 | 3-Methyl-1-butanol | C5H12O | n.d. | 16.6 |
| 16 | 2-Hexanol | C6H14O | 11.6 | n.d. |
| 17 | α-Methyl-β-oxo-2-pyridinepropanoic acid ethyl ester | C9H9NO3 | 1.3 | n.d. |
| 18 | 4,6-Dimethyl-2-heptanone | C9H18O | 1.6 | 1.3 |
| 19 | 1,3-Bis(1,1-dimethylethyl) benzene | C14H22 | 2.7 | 3.5 |
| 20 | Benzene-ethanol | C8H12O | n.d. | 7.5 |
| 21 | Trace materials | - | 6.3 | 6.6 |
Various volatile compounds were determined using SPME-GC analysis, and area (%) was calculated as percentage of area of target compounds against the area of total compounds shown in the GC-MS chromatogram. SP, sheep placenta; SP-BD, sheep placenta fermented with B. deamine kh3; n.d., not determined.