Oligostilbene

picture info	Oligostilbene Oligostilbenoids (oligo- or polystilbenes) are oligomeric forms of stilbenoids. Some molecules are large enough to be considered polyphenols and constitute a class of tannins. Examples Dimers * Ampelopsin A * Epsilon-viniferin * Pallidol * Quadrangularin A Trimers * α-Viniferin * Ampelopsin E * ''trans''-Diptoindonesin B * Gnetin H Tetramers * cajyphenol A * cajyphenol B * Flexuosol A * Hemsleyanol D * Hopeaphenol * Vaticanol B * R2-Viniferin (syn. Vitisin A) Modified * Diptoindonesin C can be isolated from the bark of '' Shorea pinanga'' Other * Diptoindonesin F can be isolated from the bark of ''Shorea gibbosa'' Glycosides * Diptoindonesin A Diptoindonesin A is a C- glucoside of ε-viniferin isolated from the two Dipterocarpaceae '' Shorea seminis'' and ''Dryobalanops aromatica ''Dryobalanops aromatica'', commonly known as Borneo camphor, camphor tree, Malay camphor, or Sumatran c ... References External links * {{oligostilbenoid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Hopeaphenol Hopeaphenol is a stilbenoid. It is a resveratrol tetramer. It has been first isolated from Dipterocarpaceae like '' Shorea ovalis''. It has also been isolated from wines from North Africa. It shows an opposite effect to vitisin A on apoptosis of myocytes isolated from adult rat heart. See also * Phenolic compounds in wine The phenolic content in wine refers to the phenolic compounds—natural phenol and polyphenols—in wine, which include a large group of several hundred chemical compounds that affect the taste, color and mouthfeel of wine. These compounds include ... References {{Oligostilbenoid Resveratrol oligomers Natural phenol tetramers Wine chemistry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Shorea Gibbosa ''Shorea gibbosa'' (also called yellow meranti) is a large Tropical rainforest#Emergent layer, emergent rainforest tree species in the family Dipterocarpaceae. It is native to Sumatra, Borneo, Peninsular Malaysia and Singapore. The tallest measured specimen is 81.1 metres tall, in the Tawau Hills National Park, in Sabah on the island of Borneo. References Shorea, gibbosa Trees of Malaya Trees of Borneo Trees of Peninsular Malaysia Flora of Singapore Trees of Sumatra Critically endangered flora of Asia Taxonomy articles created by Polbot {{Dipterocarpaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Shorea Pinanga ''Shorea pinanga'' is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet ''pinanga'' is derived from a local name for the species. Description ''Shorea pinanga'' grows up to tall, with a trunk diameter of up to . It has buttresses up to tall. The brown to pinkish bark is initially smooth, later becoming cracked and flaky. The leathery leaves are elliptic to ovate and measure up to long. The inflorescences bear pink flowers. Distribution and habitat ''Shorea pinanga'' is endemic to Borneo. Its habitat is mixed dipterocarp forests, to elevations of . Conservation ''Shorea pinanga'' has been assessed as least concern on the IUCN Red List. Although the species population is declining, it is still considered abundant. The species is used for its timber. ''Shorea pinanga'' occurs in a number of protected areas. References pinanga ''Pinanga'' is a genus of flowering plant of the palm family in the subtribe Arecinae. It is native to easter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	R2-Viniferin Vitisin A is a resveratrol tetramer (chemistry), tetramer found in plants of the genus ''Vitis''. It is a complex of two resveratrol dimers, (+)-epsilon-viniferin and ampelopsin B. It shows an opposite effect to hopeaphenol on apoptosis of myocytes isolated from adult rat heart. References External links Website of the Schröder group Resveratrol oligomers Natural phenol tetramers Grape {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Flexuosol A Flexuosol A is a resveratrol tetramer found in ''Vitis flexuosa ''Vitis flexuosa'' is a species of liana in the grape family. It has a very large native range in Asian tropical and temperate climate zones. Distribution The vine is native to: * East Asia in Taiwan; the Koreas, Hong Kong; the Chinese provi ...''. References Resveratrol oligomers Natural phenol tetramers Grape {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]