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Spathulenol
Spathulenol is a tricyclic sesquiterpene alcohol which has a basic skeleton similar to the azulenes. It occurs in oregano among other plants. History and occurrence A volatile oil was extracted from waterwort distillery (''Artemisia vulgaris'') and tarragon Tarragon (''Artemisia dracunculus''), also known as estragon, is a species of perennial herb in the family Asteraceae. It is widespread in the wild across much of Eurasia and North America and is cultivated for culinary and medicinal purposes. ... (''Artemisia dracunculus''), from which the sesquiterpene alcohol spathulenol was isolated for the first time in 1975 as a colorless, viscous compound with an earth-aromatic odor and bitter-spicy taste. References {{biochemistry-stub Sesquiterpenes Herbal distillates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oregano
Oregano (, ; ''Origanum vulgare'') is a species of flowering plant in the mint family Lamiaceae. It was native to the Mediterranean region, but widely naturalised elsewhere in the temperate Northern Hemisphere. Oregano is a woody perennial plant, growing tall, with opposite leaves long. The flowers are purple, long, produced in erect spikes in summer. It is sometimes called wild marjoram, and its close relative, '' O. majorana'', is known as sweet marjoram. Both are widely used as culinary herbs, especially in Turkish, Greek, Spanish, Italian, Mexican, and French cuisine. Oregano is also an ornamental plant, with numerous cultivars bred for varying leaf colour, flower colour and habit. Etymology Used since the middle 18th century, the Spanish word ''orégano'' is derived from the Latin ''orīganum'' and ultimately from the Classical Greek (''orī́ganon''). This is a compound Greek term that consists of (''óros'') meaning "mountain", and (''gános'') meaning "brightness ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sesquiterpene
Sesquiterpenes are a class of terpenes that consist of three isoprene units and often have the molecular formula C15H24. Like monoterpenes, sesquiterpenes may be cyclic or contain rings, including many unique combinations. Biochemical modifications such as oxidation or rearrangement produce the related sesquiterpenoids. Sesquiterpenes are found naturally in plants and insects, as semiochemicals, e.g. defensive agents or pheromones. Biosynthesis and examples The reaction of geranyl pyrophosphate with isopentenyl pyrophosphate results in the 15-carbon farnesyl pyrophosphate (FPP), which is an intermediate in the biosynthesis of sesquiterpenes such as farnesene. Cyclic sesquiterpenes are more common than cyclic monoterpenes because of the increased chain length and additional double bond in the sesquiterpene precursors. In addition to common six-membered ring systems such as the ones found in zingiberene and bisacurone, cyclization of one end of the chain to the other end can l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azulene
Azulene is an organic compound and an isomer of naphthalene. Naphthalene is colourless, whereas azulene is dark blue. Two terpenoids, vetivazulene (4,8-dimethyl-2-isopropylazulene) and guaiazulene (1,4-dimethyl-7-isopropylazulene), that feature the azulene skeleton are found in nature as constituents of pigments in mushrooms, guaiac wood oil, and some marine invertebrates. Azulene has a long history, dating back to the 15th century as the azure-blue chromophore obtained by steam distillation of German chamomile. The chromophore was discovered in yarrow and wormwood and named in 1863 by Septimus Piesse. Its structure was first reported by Lavoslav Ružička, followed by its organic synthesis in 1937 by Placidus Plattner. Structure and bonding left, The blue color of the mushroom '' Lactarius indigo'' is due to the azulene derivative (7-isopropenyl-4-methylazulen-1-yl)methyl stearate. Azulene is usually viewed as resulting from fusion of cyclopentadiene and cycloheptatrie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterwort
''Elatine'' is one of only two genera in the plant family Elatinaceae, the waterwort family. It contains about 25 species of aquatic plants known generally as waterworts. These are annual or perennial plants found in wet areas worldwide. , Plants of the World Online accepted the following species: *''Elatine alsinastrum'' L. *'' Elatine ambigua'' Wight - Asian waterwort *''Elatine americana'' (Pursh) Arn. - American waterwort *''Elatine brachysperma'' A.Gray - shortseed waterwort *'' Elatine brochonii'' Clavaud *'' Elatine californica'' A.Gray - California waterwort *'' Elatine campylosperma'' Seub. *'' Elatine chilensis'' Gay - Chilean waterwort *''Elatine ecuadoriensis'' Molau *''Elatine fassettiana'' Steyerm. *''Elatine fauquei'' Monod *'' Elatine glaziovii'' Nied. *''Elatine gratioloides'' A.Cunn. *'' Elatine gussonei'' (Sommier) Brullo, Lanfr., Pavone & Ronsisv. *''Elatine heterandra'' H.Mason - mosquito waterwort *''Elatine hexandra'' (Lapierre) DC. - six-stamen waterwort * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarragon
Tarragon (''Artemisia dracunculus''), also known as estragon, is a species of perennial herb in the family Asteraceae. It is widespread in the wild across much of Eurasia and North America and is cultivated for culinary and medicinal purposes. One subspecies, ''Artemisia dracunculus'' var. ''sativa'', is cultivated to use the leaves as an aromatic culinary herb. In some other subspecies, the characteristic aroma is largely absent. The species is polymorphic. Informal names for distinguishing the variations include "French tarragon" (best for culinary use), "Russian tarragon," and "wild tarragon" (covers various states). Tarragon grows to tall, with slender branches. The leaves are lanceolate, long and broad, glossy green, with an entire margin. The flowers are produced in small capitula diameter, each capitulum containing up to 40 yellow or greenish-yellow florets. French tarragon, however, seldom produces any flowers (or seeds). Some tarragon plants produce seeds that are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sesquiterpenes
Sesquiterpenes are a class of terpenes that consist of three isoprene units and often have the molecular formula C15H24. Like monoterpenes, sesquiterpenes may be cyclic or contain rings, including many unique combinations. Biochemical modifications such as oxidation or rearrangement produce the related sesquiterpenoids. Sesquiterpenes are found naturally in plants and insects, as semiochemicals, e.g. defensive agents or pheromones. Biosynthesis and examples The reaction of geranyl pyrophosphate with isopentenyl pyrophosphate results in the 15-carbon farnesyl pyrophosphate (FPP), which is an intermediate in the biosynthesis of sesquiterpenes such as farnesene. Cyclic sesquiterpenes are more common than cyclic monoterpenes because of the increased chain length and additional double bond in the sesquiterpene precursors. In addition to common six-membered ring systems such as the ones found in zingiberene and bisacurone, cyclization of one end of the chain to the other end can l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
