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An oil produced from Calendula officinalis L. that is known in Europe as pot marigold can be found in limited quantities in commerce. Gora et al. (1980) reported that the essential oil of C. officinalis contained gamma-terpinene, menthone, isomenthone, beta-caryophyllene, gamma-cadinene, alpha-copaene, alpha-guaiene, delta-cadinene and alpha-muurolene, although no quantitative data was given.
The oxygenated terpenes found in C. officinalis were the subject of analysis by Gracza (1987). The components characterized in the oil were alpha-ionone, beta-ionone, carvone, beta-ionone epoxide, geranyl acetone, dihydroactinodiolide, oplopanone, alpha-cadinol, T-cadinol, caryophyllene oxide, a beta-caryophyllene ketone and a sesquiterpene lactone known as peduculatine.
Marczal et al. (1987) characterized the presence of gamma-muurolene, delta-cadinene, alpha-muurolol, alpha-cadinol and a tentative identification of guaiol in an oil of C. officinalis of Hungarian origin.
An oil of C. officinalis was screened for its antimicrobial properties by Janssen (1989).
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