Journal
BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY
Volume 48, Issue 6, Pages 1035-1039Publisher
INST TECNOLOGIA PARANA
DOI: 10.1590/S1516-89132005000800020
Keywords
Rosmarinus officinalis; rosemary; essential oil composition; alpha-pinene; 1,8-cineole; physicochemical parameters
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Nineteen samples of Rosmarinus officinalis were extracted by steam distillation in a pilot plant and evaluated in terms of chemical compositions and physico-chemical characteristics. The volatile oil yields ranged from 0.37% (1999 harvest) to 0.49% (1998 harvest). Twenty components were identified in the oils. The major components were alpha-pinene (40.55 to 45.10%), 1, 8-cineole (17.40 to 19.35%), camphene (4.73 to 6.06%) and verbenone (2.32 to 3.86%). The physico-chemical parameters averaged 0.8887 g/cm(3) for specific gravity, 1.4689 for refractive index, and +11.82 degrees for optical rotation, and there were no significant variations in either the chemical or physicochemical data in the different years.
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