Composition of semivolatile compounds of 10 Cinnamomum species from China and Myanmar.

The semivolatile composition of stem-bark of 10 Cinnamomum species, collected from China and Myanmar, were obtained by extraction with diethyl ether and analyzed by GC-FID and GC-MS. Identification of the substances was made by comparison of standards, mass spectra, and retention indices with literature records. Total of 74 compounds were identified. All data were statistically processed with principal component analysis and cluster analysis. Cinnamaldehyde and alpha-cubebene were found as the common constituent of the investigated population. Except Cinnamomum multiflorum, volatile terpenoids were the main constituents of all taxa. Major constituent of C. multiflorum was phenylpropanoid. Cluster subset gave the information that chemical components variation was influenced by geographical sources. Here, the first information on the semivolatile composition of six never investigated species viz. C. multiflorum, C. obtusifolium, C. inunctum, C. chartophyllum, C. pathenoxylon, and C. glanduliferum. Furthermore, those species could be alternative source of bioactive compounds.