Article ID Journal Published Year Pages File Type
4559818 Food Control 2010 5 Pages PDF
Abstract

Chemical compositions of rosemary (Rosmarinus officinalis L.) essential oil isolated using different processes, steam distillation and a spinning cone column (SCC), and harvested at different times, spring and autumn, were compared. The effect SCC operating parameters had on yields was also studied. The method used for isolating the oil influenced its composition and yield. The main components found were: camphor, β-myrcene and 1,8-cineole. SCC derived oils were more consistent and richer, on average, in oxygenated compounds than steam distilled oils. Furthermore, citronellol, chrysanthenone, piperitone and thymol were detected in SCC oils but not in their steam distilled counterparts. SCC yields were more consistent at a 1/40 dilution while higher yields were achieved at the same dilution spinning at 570 rpm.

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Life Sciences Agricultural and Biological Sciences Food Science
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