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Piper Marginatum
''Piper marginatum'', the cake bush, Anesi wiwiri, marigold pepper, Ti Bombé in Creole or Hinojo, is a plant species in the genus '' Piper'' found in moist, shady spots in the Amazon rainforest in Surinam, French Guiana and Brazil. The leaves contain flavonoids such as vitexin and marginatoside (6 -O-β gentiobiosyl vitexin). The plant also contains 3,4-Methylenedioxypropiophenone, 2,4,5-Trimethoxypropiophenone, 2-Methoxy-4,5-methylenedioxypropiophenone, 1-(3,4-Methylenedioxyphenyl)propan-1-ol ( Marginatumol), 5,4′-Dihydroxy-7-methoxyflavanone and 5,7-Dihydroxy-4′-methoxyflavanone. An essential oil can be produced from the plant showing deterrent and larvicidal activities against ''Aedes aegypti ''Aedes aegypti'', the yellow fever mosquito, is a mosquito that can spread dengue fever, chikungunya, Zika fever, Mayaro and yellow fever viruses, and other disease agents. The mosquito can be recognized by black and white markings on its legs ...''. References Ext ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nikolaus Joseph Von Jacquin
Nikolaus Joseph Freiherr von Jacquin (16 February 172726 October 1817) was a scientist who studied medicine, chemistry and botany. Biography Born in Leiden in the Netherlands, he studied medicine at Leiden University, then moved first to Paris and afterward to Vienna. In 1752, he studied under Gerard van Swieten in Vienna. Between 1755 and 1759, Jacquin was sent to the West Indies, Central America, Venezuela and New Granada by Francis I to collect plants for the Schönbrunn Palace, and amassed a large collection of animal, plant and mineral samples. In 1797, Alexander von Humboldt profited from studying these collections and conversing with Jacquin in preparation of his own journey to the Americas. In 1763, Jacquin became professor of chemistry and mineralogy at the Bergakademie Schemnitz (now Banská Štiavnica in Slovakia). In 1768, he was appointed Professor of Botany and Chemistry and became director of the botanical gardens of the University of Vienna. For his work ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piper (plant)
''Piper'', the pepper plants or pepper vines, is an economically and ecologically important genus in the family Piperaceae. It contains about 1,000-2,000 species of shrubs, herbs, and lianas, many of which are dominant species in their native habitat. The diversification of this taxon is of interest to understanding the evolution of plants. Pepper plants belong to the magnoliids, which are angiosperms but neither monocots nor eudicots. Their family, Piperaceae, is most closely related to the lizardtail family (Saururaceae), which in fact generally look like smaller, more delicate and amphibious pepper plants. Both families have characteristic tail-shaped inflorescences covered in tiny flowers. A somewhat less close relative is the pipevine family (Aristolochiaceae). A well-known and very close relative – being also part of the Piperaceae – are the radiator plants of the genus ''Peperomia''. The scientific name ''Piper'' and the common name "pepper" are derived from the San ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vitexin
Vitexin is an apigenin flavone glucoside, a chemical compound found in the passion flower, ''Vitex agnus-castus'' (chaste tree or chasteberry), in the ''Phyllostachys nigra'' bamboo leaves, in the pearl millet (Pennisetum millet), and in Hawthorn. Metabolism Goitrogenicity of millet flavones : Vitexin inhibits thyroid peroxidase thus contributing to goiter. * Vitexin beta-glucosyltransferase * Vitexin 2"-O-rhamnoside 7-O-methyltransferase See also * Isovitexin (or homovitexin, saponaretin) is the apigenin-6-''C''-glucoside. * Orientin Orientin is a flavone, a chemical flavonoid-like compound. It is the 8-C glucoside of luteolin. Natural occurrences Orientin is found in ''Adonis vernalis'', in '' Anadenanthera colubrina'' and ''Anadenanthera peregrina'', and in the '' Phyllost ..., the 3'-OH derivative References External links Vitexin on RDchemicals.com {{flavone Flavone glucosides C-glycoside natural phenols ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gentiobiosyl
Gentiobiose is a disaccharide composed of two units of D-glucose joined with a β(1->6) linkage. It is a white crystalline solid that is soluble in water or hot methanol. Gentiobiose is incorporated into the chemical structure of crocin Crocin is a carotenoid chemical compound that is found in the flowers of crocus and gardenia. Crocin is the chemical primarily responsible for the color of saffron. Chemically, crocin is the diester formed from the disaccharide gentiobiose and ..., the chemical compound that gives saffron its color. It is a product of the caramelization of glucose. During a starch hydrolysis process for glucose syrup, gentiobiose, which has bitterness, is formed as an undesirable product through the acid-catalyzed condensation reaction of two D-glucose molecules. One β-D-glucose unit elongation of the bitter disaccharide reduces its bitterness by a fifth, as determined by human volunteers using the trimer, gentiotriose. Gentiobiose is also produced v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3,4-Methylenedioxypropiophenone
3,4-Methylenedioxypropiophenone, also known as 3,4-(Methylenedioxy)phenyl-1-propanone (MDP1P), is a phenylpropanoid found in some plants of the genus '' Piper'' and is an isomer of 3,4-methylenedioxyphenyl-2-propanone (MDP2P). Natural occurrence Studies of various chemotypes of '' Piper marginatum'' have either detected this compound to be the dominant constituent of the plant's essential oil or absent from it altogether. Of 22 samples collected from South America, specimens from the following regions had the greatest amount of the chemical by dry leaf mass: Manaus (0.35%), Melgaço (0.348%), Belterra (0.33%), Monte Alegre (0.241 to 0.266%), and Alta Floresta (0.123%). Uses MDP1P is a can be used as a precursor in the synthesis of methylone and various other substituted methylenedioxy- phenethylamine derivatives. It can be prepared via a Grignard reaction between ethylmagnesium bromide and piperonylonitrile. Legal status United States MDP1P is not a scheduled drug a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2,4,5-Trimethoxypropiophenone
2,4,5-Trimethoxypropiophenone is a natural phenylpropanoid and precursor in the synthesis of α-asarone. Natural occurrence 2,4,5-Trimethoxypropiophenone is a component of several plant species' essential oils. The chemical has been identified in ''Piper marginatum ''Piper marginatum'', the cake bush, Anesi wiwiri, marigold pepper, Ti Bombé in Creole or Hinojo, is a plant species in the genus ''Piper (plant), Piper'' found in moist, shady spots in the Amazon rainforest in Surinam, French Guiana and Brazil. ...'', '' Acorus tatarinowii'', and '' Asarum maximum''. References O-methylated phenylpropanoids Aromatic ketones {{organic-compound-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1-(3,4-Methylenedioxyphenyl)propan-1-ol
Increment or incremental may refer to: *Incrementalism, a theory (also used in politics as a synonym for gradualism) *Increment and decrement operators, the operators ++ and -- in computer programming *Incremental computing *Incremental backup, which contain only that portion that has changed since the preceding backup copy. *Increment, chess term for additional time a chess player receives on each move * Incremental games * Increment in rounding See also * * *1+1 (other) 1+1 is a mathematical expression that evaluates to: * 2 (number) (in ordinary arithmetic) * 1 (number) (in Boolean algebra with a notation where '+' denotes a logical disjunction) * 0 (number) (in Boolean algebra with a notation where '+' denotes ' ... {{Disambiguation da:Inkrementel fr:Incrémentation nl:Increment ja:インクリメント pl:Inkrementacja ru:Инкремент sr:Инкремент sv:++ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
