Terpinen rosemary

Terpinen-4-ol occurs in the essential oils of lavender, hyssop, pine. Origanum, nutmeg, thyme, marjoram, tarragon, cubeb, neroli, rosemary, juniper berry and passion fruit and raspberry flavor as a mixture of... 

Composition Up to 55% 1,8-cineole, camphor, bomeol and its acetate, a-terpineol, terpinene-4-ol, linalool, verbenone, 3-octanone and terpene hydrocarbons. For detailed analyses see e.g. [254, 255, 256[. Even if different chemotypes of rosemary exist, only two qualities are of commercial interest (ISO and European Pharmacopoeia give almost identical specifications) ... 

Fig. 2 Total ion chromatogram of monoteipenes present in the gaseous emission of (a) Douglas-fir, (b) Rosemary and (c) Lavender. Peaks 1, a-Thujene 2, (-)-a-Pinene 3, (+) a-Pinene 4, Myrcene 5, Tryciclene 6, (+)-Camphene 7, (-)-Sabinene 8, (-)-Camphene 9, (+)-fi-3-Carene 10, a-Terpinene 11, (+)-p-Pinene 12, (-)-p-Pinene 13, m-Cymene 14, o-Cymene 15, (+)-Limonene 16, (+)-p-Phellangrene 17, (+)-p-PheUangrene 18, 7-Terpinene 19, a-Trpinolene 20,1,8-Cineole 21, (-)-4-Carene 22, (+)-4-Carene 23, (-)-Camphor.

ISO standard 4719 shows character and data for that oil. Adulteration is done by white camphor oil, 1,8-cineole distilled from eucalyptus oil, synthetic camphor, and linalool. Blending is done with ter-penes from eucalyptus oil, turpentine oil, n-bornyl acetate, lavandin, rosemary oil, HO leaf oil, and a terpineol. Detection can be made by GC MS and by multidimensional chiral separation. Ravid (1992) mentions the chiral ratio of terpinen 4 ol as (4S) (+) terpinen-4-ol 93% (4I -(-)-terpinen 4-ol 7%. 

The technique has also been successfully applied to the authenticity assessment of various commercially available rosemary oils [111]. The ER of a-pinene, camphene, P-pinene, limonene, borneol, terpinen-4-ol, a-terpineol, linalool, and camphor were measured moreover, (IS)-(-)-borneol of high enantiomeric purity (higher than 90%) has been defined as a reliable indicator of... 

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