Chemical composition of leaf and root essential oils of Boenninghausenia albiflora Reichb. from northern India
The leaf and root essential oil composition of Boenninghausenia albiflora Reichb and Meissner (family: Rutaceae), collected from Uttarakhand, India, was analysed by capillary gas chromatography and gas chromatography–mass spectrometry. The major constituents identified in the leaf essential oil were β-myrcene, (Z)-β-guaiene, (Z)-β-ocimene and β-caryophyllene, whereas bicyclogermacrene, α-terpinyl acetate, geijerene and β-copaene-4α-ol were identified as the major constituents of the root essential oil. This is the first time that the chemical compositions of leaf and root essential oils of B. albiflora have been investigated in detail. The results show significant qualitative and quantitative variations in leaf and root oil composition.
Analysis of the root oil of Fokienia hodginsii (Dunn) Henry et Thomas (Cupressaceae) by GC, GC–MS and 13C-NMR
The root oil of Fokienia hodginsii from Vietnam was submitted, after fractionation over silica gel, to a combined analysis by GC-RI, GC-MS and 1 3 C-NMR. Forty hydrocarbons and 19 oxygenated compounds, mostly sesquiterpenes, were identified. (E)-Nerolidol and fokienol were the major components.
Triterpenoid saponins from Fatsia japonica
Abstract Five triterpenoid saponins isolated from the flowers, the mature fruits and the leaves of Fatsia japonica were identified as 3- O -[β- d -glucopyranosyl(1→4)-β- d -glucopyranosyl]-hederagenin ( 1 ), 3- O -[β- d -glucopyranosyl-(1→4)-α- l -arabinopyranosyl]-oleanolic acid ( 2 ), 3- O -[α- l -arabinopyranosyl]-hederagenin ( 3 ), 3- O -[β- d -glucopyranosyl]-hederagenin ( 4 ) and 3- O -[β- d -glucopyranosyl(1→4)-α- l -arabinopyranosyl]-hederagenin ( 5 ). The saponins 1 and 2 are new, naturally occurring, triterpenoid saponins. The distribution of the five saponins in three parts of the plant was investigated. Saponins 2, 3 and 5 were present in the flowers, saponins 1, 3, 4 and 5 were in the mature fruits and saponins 2, 3, 4 and 5 were in the leaves.