Chemical composition of the essential oils from fruits, leaves and flowers of the Amur cork tree (Phellodendron amurense Rupr.)

Abstract

The essential oils from fruits, leaves and flowers of the Amur cork tree (Phellodendron amurense Rupr.) were analysed by GC, GC-MS and 1 H-NMR spectroscopy. About 80 compounds were identified in each oil. Myrcene (62.3-70.3%) and β β β β β-caryophyllene (6.8-10.5%) dominated in the oils from unripe and ripe fruits. The leaf oil contained β β β β β-elemol (18.5%) and (Z)-β β β β β-ocimene (12.6%) as the main constituents, whereas in the flower oil these were (Z)-β β β β β-ocimene (9.5%), β β β β β-elemol (9.4%), myrcene (7.8%) and nonacosane (7.7%).

Chemical composition of the essential oils from fruits, leaves and flowers ofPhellodendron sachalinense (Fr. Schmidt) Sarg.

“…A closely related species, P. amurense, was remarkable in that one single compound, myrcene (62-91%), dominated, whereas limonene constituted only 0.6-1.8%. 13,14 …”

“…The content of the essential oil in P. sachalinense fruits was very high in comparison with the results obtained earlier for the fruits of P. amurense (2.1-2.8% in dry weight). 13 The essential oil had a pale yellow colour and strong, terpenic odour.…”

Provenance variations in berberine content ofPhellodendron amurense, a rare and endangered medicinal plant grown in Northeast China

“…(Rutaceae) is a deciduous tree commonly called the Amur cork tree (Azad, Yokota, Ishiguri, et al 2005;Wang et al 2009). Indigenous to the Amur Valley at the boundary between Northeastern China and the Russian Far East (Lis et al 2004), P. amurense is now distributed in Northeastern China, Inner Mongolia, the Russian Far East, and southern Sakhalin, Korea, and Japan (Yang et al 2013). In China, P. amurense is distributed mainly in the southeast of the Greater Xing'an, Lesser Xing'an, Changbai, Wanda, and Qianshan mountains and in the northern Yanshan Mountains.…”

Alkaloids

“…The plant is cultivated to ornament parks and streets in the USA, Canada, and Europe. 314 Proposed Research Pharmacological study of berberine and congeners for the treatment of neurodegenerative diseases. The stems are warty.…”