The genus Cinnamomum

Chinese Cassia 171
Table 6.5 Composition of leaf essential oils from C. cassia from two sources, China and Australia
1.1 Leaf oil:
From China From Australia
% Compound % Compound
74.1 Cinnamic aldehyde 77.2 Cinnamic aldehyde
10.5 2-Methoxycinnamaldehyde 15.3 Coumarin
6.6 Cinnamyl acetate 3.6 Cinnamyl acetate
1.2 Coumarin 1.2 Benzaldehyde
1.1 Benzaldehyde 0.8 4-Ethylguaiacol
0.7 2-Phenylethyl acetate 0.4 Ethyl cinnamate
0.6 2-Phenylethanol 0.2 2-Phenylethyl acetate
0.6 2-Methoxybenzaldehyde 0.2 2-Phenylethanol
0.2 2-Methylbenzofuran 0.1 -Terpineol
0.2 3-Phenylpropanal 0.1 Eugenyl acetate
0.2 Salicylaldehyde 0.1 Benzyl benzoate
0.2 Cinnamyl alcohol 0.1 Terpinen-4-ol
0.2 Nerolidol (unknown isomer) 0.1 Nonanal
0.1 Acetophenone Trace 1-Hexanol
0.1 -Pinene Trace Chavicol
Trace Camphene
Trace 1,8-Cineole
Trace Cinnamyl alcohol
Trace Cuminaldehyde
Trace Eugenol
Trace Farnesol (unknown isomer)
Trace Geranial
Trace Guaiacol
Trace -Humulene
Trace Isoeugenol
Trace Linalool
Trace Methyl benzoate
Trace 3-Phenylpropanal
Trace -Pinene
Trace -Pinene
Trace Terpinolene
Trace 2-Vinylphenol
96.5 Total 99.4 Total
Source: Zhu et al., 1993. Source: Senanayake, 1977.
Lyoniresinol 2-O--D-glucopyranoside, 3,4,5-trimethoxy phenol-O--D-apiofuranosyl-(1:
6)--D-glucopyranoside, syringaresinol, two epicatechins-5,7,3,4trimethyl-epicatechin
and 5,7,0-dimethyl-3,4-di-0-methylene epicatechin, and two
cinnamic aldehyde cyclic glycerol 1,3-acetals; 3-(2-hydroxyphenyl) propanoic acid and
its O--D-glucopyranoside, cassioside, cinnamoside and 3,4,5-trimethoxyphenol--Dapiofuranyl-(1:
6)--D-glucopyranoside (Tanaka et al., 1989; Shiraga et al., 1988).
In addition to the above, coumarin, cinnamic acid, -sitosterol, choline, protocatechuic
acid, vanillic acid and syringic acid were isolated from the aqueous extract of
cassia bark (Yuan and Jiang, 1982; Akira et al., 1986).