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Momordicine
A momordicine is any of several compounds found in the bitter melon vine, ''Momordica charantia''. They are glycosides of cucurbitane derivatives.Daniel Bisrat Mekuria, Takehiro Kashiwagi, Shin-ichi Tebayashi, and Chul-Sa Kim (2006)"Cucurbitane Glucosides from ''Momordica charantia'' Leaves as Oviposition Deterrents to the Leafminer, ''Liriomyza trifolii''". ''Z. Naturforsch.'', volume 61c, pages 81–86 They include * Momordicine II * Momordicine IV, 7-''O''-''D''-glucopyranosyl-3,23-dihydroxycucurbita-5,24-dien-19-al Momordicine II and IV can be extracted from the leaves of ''M. charantia'' by methanol Methanol (also called methyl alcohol and wood spirit, amongst other names) is an organic chemical compound and the simplest aliphatic Alcohol (chemistry), alcohol, with the chemical formula (a methyl group linked to a hydroxyl group, often ab .... They have been found to deter egg-laying of the leaf mining fly (''Liriomyza trifolii'') at a combined concentration of 96&nbs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bitter Melon
''Momordica charantia'' (commonly called bitter melon, cerassee, goya, bitter apple, bitter gourd, bitter squash, balsam-pear, karela, karavila and many more #Uses, names listed below) is a tropical and subtropical vine of the family Cucurbitaceae, widely grown in Asia, Africa, and the Caribbean for its edible fruit. Its many variety (botany), varieties differ substantially in the shape and bitterness of the fruit. Bitter melon originated in Africa, where it was a dry-season staple food of ǃKung people, ǃKung hunter-gatherers. Wild or semi-domesticated variants spread across Asia in prehistory, and it was likely fully domesticated in Southeast Asia. It is widely used in the cuisines of East Asian cuisine, East Asia, South Asian cuisine, South Asia, and Southeast Asian cuisine, Southeast Asia. Description This herbaceous, tendril-bearing vine grows up to in length. It bears simple, Phyllotaxis, alternate leaves across, with three to seven deeply separated lobes. Each plan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glycosides
In chemistry, a glycoside is a molecule in which a sugar is bound to another functional group via a glycosidic bond. Glycosides play numerous important roles in living organisms. Many plants store chemicals in the form of inactive glycosides. These can be activated by enzymatic, enzyme hydrolysis, which causes the sugar part to be broken off, making the chemical available for use. Many such plant glycosides are used as medications. Several species of ''Heliconius'' butterfly are capable of incorporating these plant compounds as a form of chemical defense against predators. In animals and humans, poisons are often bound to sugar molecules as part of their elimination from the body. In formal terms, a glycoside is any molecule in which a sugar group is bonded through its anomeric carbon to another group via a glycosidic bond. Glycosides can be linked by an O- (an ''O-glycoside''), N- (a ''glycosylamine''), S-(a ''thioglycoside''), or C- (a ''C-glycoside'') glycosidic bond. Accord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cucurbitane
Cucurbitane is a tetracyclic chemical compound with formula . It is a polycyclic hydrocarbon, specifically triterpene. It is also an isomer of lanostane (specifically 19(10→9β)-abeolanostane), from which it differs by the formal shift of a methyl group (carbon number 19) from the 10 to the 9β position in the standard steroid numbering scheme.Satish Kumar and Raj Kumar (1991), ''Dictionary of Biochemistry''. Anmol Publications, India The name is applied to two stereoisomers, distinguished by the prefixes 5α- and 5β-, which differ by the handedness of the bonds at a particular carbon atom (number 5 in the standard steroid numbering scheme). File:5alpha-cucurbitane.svg, 5α-Cucurbitane File:5beta-cucurbitane.svg, 5β-Cucurbitane Cucurbitane is the core chemical structure of a class of derivatives known as cucurbitane-type triterpenoids or simply as cucurbitanes. Derivatives Natural compounds Compounds with the basic cucurbitane skeleton are found in many plants, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methanol
Methanol (also called methyl alcohol and wood spirit, amongst other names) is an organic chemical compound and the simplest aliphatic Alcohol (chemistry), alcohol, with the chemical formula (a methyl group linked to a hydroxyl group, often abbreviated as MeOH). It is a light, Volatility (chemistry), volatile, colorless and flammable liquid with a distinctive alcoholic odor similar to that of ethanol (potable alcohol), but is more acutely toxic than the latter. Methanol acquired the name wood alcohol because it was once produced through destructive distillation of wood. Today, methanol is mainly produced industrially by hydrogenation of carbon monoxide. Methanol consists of a methyl group linked to a polar hydroxyl group. With more than 20 million tons produced annually, it is used as a Precursor (chemistry), precursor to other commodity chemicals, including formaldehyde, acetic acid, methyl tert-butyl ether, methyl ''tert''-butyl ether, methyl benzoate, anisole, peroxyacids, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Mining Fly
''Liriomyza trifolii'', known generally as the American serpentine leafminer or celery leafminer, is a species of leaf miner fly in the family Agromyzidae. ''L. trifolii'' is a damaging pest, as it consumes and destroys produce and other plant products. It commonly infests greenhouses and is one of the three most-damaging leaf miners in existence today. It is found in several countries around the globe as an invasive species, but is native to the Caribbean and the Southeastern United States. Description ''L. trifolii'' are relatively small flies for their family. The adults typically measure less than 2 mm in length. They are mostly yellow in color, although parts of the abdomen and thorax are dark brown or grey. They typically have yellow legs. A key distinction between ''L. trifolii'' and their very similar relatives, '' L. sativae,'' are ''L. trifolii's'' dark, matte mesonotum. ''L. trifolii'' typically have a wingspan of 1.25 to 1.90 mm. Their wings are transpa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Momordicin (other)
Momordicin is one of several compounds found in the bitter melon vine, including:Sabira Begum, Mansour Ahmed, Bina S. Siddiqui, Abdullah Khan, Zafar S. Saify, and Mohammed Arif (1997), "Triterpenes, a sterol and a monocyclic alcohol from ''Momordica charantia''." ''Phytochemistry'', volume 44, issue 7, pages 1313-1320Majekodunmi Fatope, Yoshio Takeda, Hiroyasu Yamashita, Hikaru Okabe, and Tatsuo Yamauchi (1990), "New cucurbitane triterpenoids from ''Momordica charantia''." ''Journal of Natural Products'', volume 53, issue 6, pages 1491-1497. * Momordicin I, a chemical compound found in the leaves * Momordicin II * Momordicin-28 See also * Momordicinin * Momordicilin * Momordenol Momordenol (3β-hydroxy-stigmasta-5,14-dien-16-one) is a natural chemical compound, a sterol found in the fresh fruit of the bitter melon (''Momordica charantia''). The compound is soluble in ethyl acetate and methanol but not in pure chloroform ... * Momordol References {{Chemistry index ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
