Quercetin is a plant flavonol from the flavonoid group of polyphenols. It is found in many fruits, vegetables, leaves, seeds, and grains; capers, red onions and kale are common foods containing appreciable amounts of quercetin. Quercetin has a bitter flavor and is used as an ingredient in dietary supplements, beverages, and foods.
Rutin, also called rutoside, quercetin-3-O-rutinoside and sophorin, is the glycoside combining the flavonol quercetin and the disaccharide rutinose. It is a citrus flavonoid found in a wide variety of plants including citrus.
Flavonols are a class of flavonoids that have the 3-hydroxyflavone backbone. Their diversity stems from the different positions of the phenolic -OH groups. They are distinct from flavanols such as catechin, another class of flavonoids.
Leucadendron discolor is a species of plant in the family Proteaceae. It is endemic to South Africa. It is threatened by habitat loss. In English the plant is known as the Piketberg Conebush and in Afrikaans as the Rooitolbos. L. discolor is a slow growing perennial. Growth of the root system and propagation, from a seed to the plant's first flower, can take up to two years. The male L. discolor 'Sunset' flowers exuberantly during early spring exposing a colorful flowerhead during this time.The flower head is composed of a dome-like receptacle, and is densely covered with small male flowers. These plants are only able to reproduce after their third year of life.
Erysimum cheiranthoides, the treacle-mustard,wormseed wallflower, or wormseed mustard is a species of Erysimum native to most of central and northern Europe and northern and central Asia. Like other Erysimum species, E. cheiranthoides accumulates two major classes of defensive chemicals, glucosinolates and cardiac glycosides.
In enzymology, an isoflavone-7-O-beta-glucoside 6"-O-malonyltransferase is an enzyme that catalyzes the chemical reaction
Trifolin is a chemical compound. It is the kaempferol 3-galactoside. It can be found in Camptotheca acuminata, in Euphorbia condylocarpa or in Consolida oliveriana.
The flavanonols are a class of flavonoids that use the 3-hydroxy-2,3-dihydro-2-phenylchromen-4-one backbone.
The 3-Deoxyanthocyanidins and their glycosides are molecules with an anthocyanidins backbone lacking an hydroxyl group at position 3 on the C-ring. This nomenclature is the inverse of that which is commonly used in flavonoids, where the hydroxy-group is assumed absent if it is not specified, e. g. flavan-3-ol, flavan-4-ol, flavan-3,4-ol and flavonol.
An opiate, in classical pharmacology, is a substance derived from opium. In more modern usage, the term opioid is used to designate all substances, both natural and synthetic, that bind to opioid receptors in the brain. Opiates are alkaloid compounds naturally found in the opium poppy plant Papaver somniferum. The psychoactive compounds found in the opium plant include morphine, codeine, and thebaine. Opiates have long been used for a variety of medical conditions with evidence of opiate trade and use for pain relief as early as the eighth century AD. Opiates are considered drugs with moderate to high abuse potential and are listed on various "Substance-Control Schedules" under the Uniform Controlled Substances Act of the United States of America.
Azaleatin is a chemical compound. It is an O-methylated flavonol, a type of flavonoid. It was first isolated from the flowers of Rhododendron mucronatum in 1956 and has since been recorded in forty-four other Rhododendron species, in Plumbago capensis, in Ceratostigma willmottiana and in Carya pecan. It has been also been found in the leaves of Eucryphia.
Eupatolitin is a chemical compound. It is an O-methylated flavonol, a type of flavonoid. Eupatolitin can be found in Brickellia veronicaefolia and in Ipomopsis aggregata.
Herbacetin is a flavonol, a type of flavonoid.
Syringetin is an O-methylated flavonol, a type of flavonoid. It is found in red grape, in Lysimachia congestiflora and in Vaccinium uliginosum. It is one of the phenolic compounds present in wine.
Laricitrin is an O-methylated flavonol, a type of flavonoid. It is found in red grape and in Vaccinium uliginosum. It is one of the phenolic compounds present in wine.
Patuletin is an O-methylated flavonol. It can be found in the genus Eriocaulon.
Axillarin is an O-methylated flavonol. It can be found in Pulicaria crispa, Filifolium sibiricum, Inula britannica, Wyethia bolanderi in Balsamorhiza macrophylla and in Tanacetum vulgare. It can also be synthetized.
Miquelianin is a flavonol glucuronide, a type of phenolic compound present in wine, in species of St John's wort, like Hypericum hirsutum, in Nelumbo nucifera or in green beans.
Smilax glabra, the Chinaroot, tufuling (土茯苓) or sarsaparilla, is a plant species in the genus Smilax. It is native to China, the Himalayas, and Indochina.
Quercetin 3,4'-diglucoside is a flavonol glycoside found in onions and in horse chestnut seeds.
