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Kahweol
Kahweol is a diterpenoid molecule found in the beans of '' Coffea arabica'' and is structurally related to cafestol. Its name derives from the Arabic word ''ka-ah-wa'', leading to the word, "coffee" . In French, the related slang Slang is vocabulary (words, phrases, and linguistic usages) of an informal register, common in spoken conversation but avoided in formal writing. It also sometimes refers to the language generally exclusive to the members of particular in-g ... word "kawa" designates coffee. See also * Cafestol References {{Coffee Diterpenes Naphthofurans Vicinal diols Cyclopentanes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diterpenoid
Diterpenes are a class of chemical compounds composed of four isoprene units, often with the molecular formula C20H32. They are biosynthesized by plants, animals and fungi via the HMG-CoA reductase pathway, with geranylgeranyl pyrophosphate being a primary intermediate. Diterpenes form the basis for biologically important compounds such as retinol, retinal, and phytol. They are known to be antimicrobial and antiinflammatory. Structures As with most terpenes a huge number of potential structures exists, which may be broadly divided according to the number of rings present. Biosynthesis Diterpenes are derived from the addition of one IPP unit to FPP to form geranylgeranyl-pyrophosphate (GGPP). From GGPP, structural diversity is achieved mainly by two classes of enzymes; the diterpene synthases and cytochromes P450. Several diterpenes are produced by plants and cyanobacteria. GGPP is also the precursor for the synthesis of the phytane by the action of the enzyme geranylger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coffea Arabica
''Coffea arabica'' (), also known as the Arabic coffee, is a species of flowering plant in the coffee and madder family Rubiaceae. It is believed to be the first species of coffee to have been cultivated and is currently the dominant cultivar, representing about 60% of global production. Coffee produced from the less acidic, more bitter, and more highly caffeinated robusta bean ('' C. canephora'') makes up most of the remaining coffee production. Arabica coffee originates from and was first cultivated in Yemen, and documented by the 12th century. ''Coffea arabica'' is called () in Arabic, borrowed from the Amharic "Buna". Taxonomy ''Coffea arabica'' was first described scientifically by Antoine de Jussieu, who named it ''Jasminum arabicum'' after studying a specimen from the Botanic Gardens of Amsterdam. Linnaeus placed it in its own genus ''Coffea'' in 1737. ''Coffea arabica'' is the only polyploid species of the genus ''Coffea,'' as it carries 4 copies of the 11 chromosom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cafestol
Cafestol is a diterpenoid molecule present in coffee beans. It is one of the compounds that may be responsible for proposed biological and pharmacological effects of coffee. Sources A typical bean of '' Coffea arabica'' contains about 0.4-0.7% cafestol by weight. Cafestol is present in highest quantity in unfiltered coffee drinks such as French press coffee or Turkish coffee/ Greek coffee. In filtered coffee drinks such as drip brewed coffee, it is present in only negligible amounts, as the paper filter in drip filtered coffee retains the diterpenes. Research into biological activity Coffee consumption has been associated with a number of effects on health and cafestol has been proposed to produce these through a number of biological actions. Studies have shown that regular consumption of boiled coffee increases serum cholesterol whereas filtered coffee does not. Cafestol may act as an agonist ligand for the nuclear receptor farnesoid X receptor and pregnane X receptor, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slang
Slang is vocabulary (words, phrases, and linguistic usages) of an informal register, common in spoken conversation but avoided in formal writing. It also sometimes refers to the language generally exclusive to the members of particular in-groups in order to establish group identity, exclude outsiders, or both. The word itself came about in the 18th century and has been defined in multiple ways since its conception. Etymology of the word ''slang'' In its earliest attested use (1756), the word ''slang'' referred to the vocabulary of "low" or "disreputable" people. By the early nineteenth century, it was no longer exclusively associated with disreputable people, but continued to be applied to usages below the level of standard educated speech. In Scots dialect it meant "talk, chat, gossip", as used by Aberdeen poet William Scott in 1832: "The slang gaed on aboot their war'ly care." In northern English dialect it meant "impertinence, abusive language". The origin of the word is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cafestol
Cafestol is a diterpenoid molecule present in coffee beans. It is one of the compounds that may be responsible for proposed biological and pharmacological effects of coffee. Sources A typical bean of '' Coffea arabica'' contains about 0.4-0.7% cafestol by weight. Cafestol is present in highest quantity in unfiltered coffee drinks such as French press coffee or Turkish coffee/ Greek coffee. In filtered coffee drinks such as drip brewed coffee, it is present in only negligible amounts, as the paper filter in drip filtered coffee retains the diterpenes. Research into biological activity Coffee consumption has been associated with a number of effects on health and cafestol has been proposed to produce these through a number of biological actions. Studies have shown that regular consumption of boiled coffee increases serum cholesterol whereas filtered coffee does not. Cafestol may act as an agonist ligand for the nuclear receptor farnesoid X receptor and pregnane X receptor, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diterpenes
Diterpenes are a class of chemical compounds composed of four isoprene units, often with the molecular formula C20H32. They are biosynthesized by plants, animals and fungi via the HMG-CoA reductase pathway, with geranylgeranyl pyrophosphate being a primary intermediate. Diterpenes form the basis for biologically important compounds such as retinol, retinal, and phytol. They are known to be antimicrobial and antiinflammatory. Structures As with most terpenes a huge number of potential structures exists, which may be broadly divided according to the number of rings present. Biosynthesis Diterpenes are derived from the addition of one IPP unit to FPP to form geranylgeranyl-pyrophosphate (GGPP). From GGPP, structural diversity is achieved mainly by two classes of enzymes; the diterpene synthases and cytochromes P450. Several diterpenes are produced by plants and cyanobacteria. GGPP is also the precursor for the synthesis of the phytane by the action of the enzyme geranylger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vicinal Diols
Vicinal may refer to: * Vicinal (chemistry), stands for any two functional groups bonded to two adjacent atoms. * Vicinal (logology), a word where all letters have alphabetic neighbors. * Vicinal tramway or ''Buurtspoor'', a system of narrow gauge tramways or local railways in Belgium. * In materials science, a "vicinal substrate" is a thin film, thin-film substrate whose surface normal deviates slightly from a major crystallographic axis. {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
