Raw Materials Sponsored by
Juniper Berry Oil and Extract
Maurer and Thomas (1994) reported on the occurrence of nitrogen bases in juniper berry oil (Juniperus communis L.). Starting with 10 kg of the oil, a basic fraction (10 mg) was obtained, which had a rich aroma. Although the two main components were found to be cis- and trans-p-menth-3-ene-1,2-diol, two pyrazines (3,6-dimethyl-2-ethylpyrazine and 2,3,5,6-tetramethylpyrazine) and 11 pyridines [3-methoxypyridine, 3-isopropylpyridine, 5-isopropyl-2-methylpyridine, 6-isopropyl-3-methylpyridine, 3-isopropenyl-6-methylpyridine, 3-pentylpyridine, (E)-3-pentenylpyridine, (Z)-3-pentenylpyridine, isopropyl nicotinate, 2-isopropylpyridinyl methyl ketone and sec.butyl nicotinate] were found as trace constituents of the oil.
Analysis of Polish juniper berry oil by Gosa et al. (1997) revealed that the major constituents were:
alpha-pinene (44.1 percent)
sabinene (6.6 percent)