Myrcene juniper berries

Juniper berry Juniperus communis L. Monoterpene hydrocarbons, pinenes, sabinene, myrcene... 

ISO standard 8897 shows character and data for this oil. J. communis oil is often mixed up with J. oxycedrus. As marker for that the myrcene content is rising up. Real markers are germacrene D- and 8-cadinene. The sesquiterpene fraction gives more information. Further on, addition of fractions of juniper berry oil from recti cation as well as adding juniper branches oil is made. Kartnig et al. (1999) published some chiral data comparing self-distilled and commercial qualities of juniper berry a- and P pinene, limonene, and terpinen-4-ol oils. Chirality was recognized as useful components for quality control of that oil. Mosandl et al. (1991) report a ratio for (5)-(-)-a-pinene 77% -)-(+)-a-pinene 23%. 

Juniper berries (6) 36% a-Pinene (XXIX ), 13% myrcene (I ), P-pinene (XXX ), A -carene (XXXII )... 

Figure 5. Berries of juniper 1 - a-pinene, 2 - P-myrcene, 3 - limonene, 4 - y-terpinene, 5 - a-terpinolene, 6 - P-caryophellene.

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