 | |
| Names | |
|---|---|
| IUPAC name 5,5'-((3S,4S,Z)-4-hydroxy-1,4-bis(4-hydroxyphenyl)but-1-ene-2,3-diyl)bis(benzene-1,3-diol) | |
| Identifiers | |
3D model (JSmol) | |
PubChem CID | |
| UNII | |
| |
| |
| Properties | |
| C28H24O7 | |
| Molar mass | 472.48 g/mol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Amurensin A is an oligostilbene isolated from the roots of Vitis amurensis . [1] It is a partially oxidized resveratrol dimer with a C8-C8' connection. [2]
A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus Vitis.
Vaccinium vitis-idaea, the lingonberry, partridgeberry, mountain cranberry or cowberry, is a small evergreen shrub in the heath family Ericaceae, that bears edible fruit. It is native to boreal forest and Arctic tundra throughout the Northern Hemisphere, from Europe and Asia to North America. Lingonberries are picked in the wild and used to accompany a variety of dishes in Northern Baltoscandia, Russia, Canada and Alaska. Commercial cultivation is undertaken in the U.S. Pacific Northwest and in many other regions of the world.
Vitis vinifera, the common grape vine, is a species of flowering plant, native to the Mediterranean region, Central Europe, and southwestern Asia, from Morocco and Portugal north to southern Germany and east to northern Iran. There are currently between 5,000 and 10,000 varieties of Vitis vinifera grapes though only a few are of commercial significance for wine and table grape production.
Vitis rotundifolia, or muscadine, is a grapevine species native to the southeastern and south-central United States. The growth range extends from Florida to New Jersey coast, and west to eastern Texas and Oklahoma. It has been extensively cultivated since the 16th century. The plants are well-adapted to their native warm and humid climate; they need fewer chilling hours than better known varieties, and thrive in summer heat.
In botany, chlorosis is a condition in which leaves produce insufficient chlorophyll. As chlorophyll is responsible for the green color of leaves, chlorotic leaves are pale, yellow, or yellow-white. The affected plant has little or no ability to manufacture carbohydrates through photosynthesis and may die unless the cause of its chlorophyll insufficiency is treated and this may lead to a plant diseases called rusts, although some chlorotic plants, such as the albino Arabidopsis thaliana mutant ppi2, are viable if supplied with exogenous sucrose.
Vitis rupestris is a species of grape native to the United States that is known by many common names including July, Coon, sand, sugar, beach, bush, currant, ingar, rock, and mountain grape. It is used for breeding several French-American hybrids as well as many root stocks.
Vitis amurensis, the Amur grape, is a species of grape native to the Asian continent. Its name comes from the Amur Valley in Russia and China.
Hybrid grapes are grape varieties that are the product of a crossing of two or more Vitis species. This is in contrast to crossings between grape varieties of the same species, typically Vitis vinifera, the European grapevine. Hybrid grapes are also referred to as inter-specific crossings or "Modern Varieties." Due to their often excellent tolerance to powdery mildew, other fungal diseases, nematodes, and phylloxera, hybrid varieties have, to some extent, become a renewed focus for European breeding programs. The recently developed varieties, Rondo, and Regent are examples of newer hybrid grape varieties for European viticulturalists. Several North American breeding programs, such as those at Cornell and the University of Minnesota, focus exclusively on hybrid grapes, with active and successful programs, having created hundreds if not thousands of new varieties.
Rondo is a dark-skinned grape variety, used for making red wine. It is a hybrid grape or inter-specific crossing. It was created in 1964 by Professor Vilém Kraus in then-Czechoslovakia by crossing the varieties Zarya Severa and St. Laurent. He offered it to Dr. Helmut Becker (1927-1990) of the Geisenheim Grape Breeding Institute who conducted further work on it, which explains why the grape is known under a Geisenheim designation. The variety was first planted for research and later in bigger scale in the mid 1980s by Thomas Walk Vineyard in Ireland under the name Amurensis Walk; it was named Rondo in 1997.
Daidzein is a naturally occurring compound found exclusively in soybeans and other legumes and structurally belongs to a class of compounds known as isoflavones. Daidzein and other isoflavones are produced in plants through the phenylpropanoid pathway of secondary metabolism and are used as signal carriers, and defense responses to pathogenic attacks. In humans, recent research has shown the viability of using daidzein in medicine for menopausal relief, osteoporosis, blood cholesterol, and lowering the risk of some hormone-related cancers, and heart disease. Despite the known health benefits, the use of both puerarin and daidzein is limited by their poor bioavailability and low water solubility.
Ampelopsis glandulosa var. brevipedunculata, with common names creeper, porcelain berry, Amur peppervine, and wild grape, is an ornamental plant, native to temperate areas of Asia. It is generally similar to, and potentially confused with, grape species and other Ampelopsis species.
Vitis (grapevine) is a genus of 79 accepted species of vining plants in the flowering plant family Vitaceae. The genus is made up of species predominantly from the Northern Hemisphere. It is economically important as the source of grapes, both for direct consumption of the fruit and for fermentation to produce wine. The study and cultivation of grapevines is called viticulture.
Hopea malibato is a species of plant in the family Dipterocarpaceae. It is endemic to the Philippines.
Severny is the name of a Russian red-grape variety. Severny results from the interspecific crossing between Seianetze Malengra and Vitis amurensis. The hybrid has been obtained in the Institute for wineyard researches in Rostov-on-Don in Russia. The variety has been imported to Finger Lakes AVA, just south of Lake Ontario, in the United States.
Pterocarpans are derivatives of isoflavonoids found in the family Fabaceae. It is a group of compounds which can be described as benzo-pyrano-furano-benzenes which can be formed by coupling of the B ring to the 4-one position.
Amurensin may refer to:
Amurensin K is an oligostilbene. It is a resveratrol tetramer found in Vitis amurensis. Preliminary tests have shown it to be an effective neuraminidase inhibitor against the influenza A virus subtype H1N1.
Quadrangularin A is an oligostilbene found in Cissus quadrangularis and in Parthenocissus laetevirens. It is a resveratrol dimer.
Amurensin E is an oligostilbene found in Vitis amurensis. It is a pentamer of resveratrol.
Zarya severa is a red grape variety. It is a descendant of the Asiatic wild grape Vitis amurensis and the grape Malingre Précoce and is thus a hybrid vine. The crossing took place at the Potapenko Viticulture Research Institute in Rostov Oblast, Russia in 1936. Because of its high winter frost resistance as well as its resistance to downy mildew, this variety, often mentioned by breeders in Eastern Europe, became a major breeding stock in the search for new varieties.
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