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Diarylheptanoids
The diarylheptanoids (also known as diphenylheptanoids) are a class of plant secondary metabolites. Diarylheptanoids consist of two aromatic rings (aryl groups) joined by a seven carbons chain (heptane) and having various substituents. They can be classified into linear (curcuminoids) and cyclic diarylheptanoids. The best known member is curcumin, which is isolated from turmeric (''Curcuma longa'') and is known as food coloring E100. Some other ''Curcuma'' species, such as ''Curcuma comosa'' also produce diarylheptanoids. They have been reported from plants in 10 different families, e.g. ''Betulaceae'' and ''Zingiberaceae''. A diarylheptanoid is an intermediate in the biosynthesis of phenylphenalenones in ''Anigozanthos preissii'' or ''Wachendorfia thyrsiflora'' (Haemodoraceae). Cyclic diarylheptanoids Cyclic diarylheptanoids formed from myricanone can be isolated from the bark of ''Myrica rubra'' (Myricaceae). Two cyclic diarylheptanoids, named ostryopsitrienol and ostryopsit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myricanone
Myricanone is a cyclic diarylheptanoid isolated from the bark of ''Myrica rubra'' (Myricaceae). References Diarylheptanoids Macrocycles O-methylated natural phenols Cyclophanes Ketones Biphenyls Methoxy compounds {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Etlingera Elatior
''Etlingera elatior'' (also known as torch ginger, among other names) is a species of herbaceous perennial plant in the family Zingiberaceae; it is native to Indonesia, Thailand, Malaysia and New Guinea. The showy pink flowers are used in decorative arrangements, and are an important ingredient in food across Southeast Asia. Names ''E. elatior'' is also known as "torch ginger", "ginger flower", "red ginger lily", "torchflower", "torch lily", "wild ginger", "Indonesian tall ginger" and "porcelain rose". (); ; ; (). Description The species grows as a pseudostem from a rhizome; it takes about 18–22 days for the first leaf to grow from the rhizome. The leafy shoot lasts for about 70 days and may reach a height of 3–4 metres. Its leaves are leathery and grow around long with a central groove. The fibers of ''Etlingera elatior'' are strong. Flower The flower bud appears from the shoot after 30 days, it swells gradually and turns pink before blooming after more than 50 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juglans Cathayensis
''Juglans mandshurica'', also known as Manchurian walnut or tigernut, is a species of deciduous tree in the walnut family, Juglandaceae. It is native to East Asia. Description The tree grows to about . The leaves are alternate, long, odd-pinnate, with 7–19 leaflets, long and broad (margin serrate or serrulate, apex acuminate). The male flowers are in drooping catkins long, the wind-pollinated female flowers (April–May) are terminal, in spikes of 4 to 10, ripening in August–October into nuts, , with densely glandular pubescent green husk and very thick shell. The Manchurian walnut contains and exudes much lesser quantities of allelopathic compounds (such as juglone) than other popular ''Juglans'' species and usually causes few significant allelopathic effects in cultivation. Taxonomy This species was first described by the Russian botanist Carl Johann Maximowicz in 1856. ''Juglans cathayensis'', characterized by tomentose leaflets, producing more flowers per spi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galeon (molecule)
Galeon is a discontinued Gecko-based web browser that was created by Marco Pesenti Gritti with the goal of delivering a consistent browsing experience to GNOME desktop environment. It gained some popularity in the early 2000s due to its speed, flexibility in configuration and features. The disagreement over the future of Galeon split the development team in 2002, which resulted in the departure of the browser's initial author and several other developers. This event marked the beginning of the browser's popularity decline, which led to its discontinuation in September 2008. Some of Galeon's features were subsequently ported to Epiphany (now called Web) – the descendant of Galeon. Features Galeon made use of Gecko's features including configuration options and standards support. Apart from that, Galeon had several features that were uncommon in browsers at that time: *mouse gestures *configurable user agent string *configurable display of favicons *customizable toolbars *c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acer Nikoense
''Acer maximowiczianum'' (Nikko maple; syn. ''A. nikoense'' Maxim.), is a species of maple widely distributed in China (Anhui, Hubei, Hunan, Jiangxi, Sichuan, Zhejiang) and Japan (Honshū, Kyūshū, Shikoku).Xu, T.-z., Chen, Y., de Jong, P. C., & Oterdoom, H. J''Flora of China'': Aceraceae (draft) Description It is a slender deciduous tree that reaches a height of but is usually smaller.van Gelderen, C.J. & van Gelderen, D.M. (1999). ''Maples for Gardens: A Color Encyclopedia''. It is a trifoliate maple, related to such other species as threeflower maple (''Acer triflorum'') and paperbark maple (''Acer griseum'') but has dark gray to blackish bark dissimilar to the exfoliating bark of either. The leaves have a petiole and three leaflets; the leaflets are oblong, long and broad, with dense, soft pubescence and smooth margins. The hard, horizontally spreading samaras are long and broad, and have the same parthenocarpic tendencies as those of ''A. griseum''. Taxonomy The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostryopsis Nobilis
''Ostryopsis nobilis'' () is a shrub species in the genus ''Ostryopsis'' found in China. It is an endemic Chinese medicinal plant. It forms thickets on sunny mountain slopes between 1500 and 3000 m. It is found in South West Sichuan and North West Yunnan. Two cyclic diarylheptanoid The diarylheptanoids (also known as diphenylheptanoids) are a class of plant secondary metabolites. Diarylheptanoids consist of two aromatic rings (aryl groups) joined by a seven carbons chain (heptane) and having various substituents. They can be ...s, named ostryopsitrienol and ostryopsitriol, can be isolated from the stems of ''O. nobilis''.Two new cyclic diarylheptanoids from the stems of Ostryopsis nobilis. Yan-Xia Zhang, Bing Xia, Yan Zhou, Li-Sheng Ding and Shu-Lin Peng, Chinese Chemical Letters, Volume 24, Issue 6, June 2013, Pages 512–514, References External links Flora of China - ''Ostryopsis nobilis'' Betulaceae Flora of Sichuan Flora of Yunnan Plants described in 1914 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myrica Rubra
''Myrica rubra'', also called yangmei (; Cantonese: yeung4 mui4; Shanghainese: ), , Chinese bayberry, red bayberry, yumberry, waxberry, or Chinese strawberry (and often mistranslated from Chinese as arbutus) is a subtropical tree grown for its fruit. Description ''Myrica rubra'' is an evergreen tree that grows to a height of up to high, with smooth gray bark and a uniform spherical to hemispherical crown. Leaves are leathery, bare, elliptic-obovate to oval lanceolate in shape, wedge-shaped at the base and rounded to pointed or tapered at the apex, margin is serrated or serrated in the upper half, with a length of and a width of . Leaves are alternately arranged on the branches are divided into petiole and leaf blade. The petiole is long. The leaf underside is pale green and sparsely to moderately golden glandular, the top surface is dark green. The species is dioecious. Male flowers with simple or unobtrusively branched bracts, are held in inflorescences individually or occ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
