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γ-terpinene
The terpinenes are a group of isomeric hydrocarbons that are classified as monoterpenes. They each have the same molecular formula and carbon framework, but they differ in the position of carbon-carbon double bonds. α-Terpinene has been isolated from cardamom and marjoram oils, and from other natural sources. β-Terpinene has no known natural source but has been prepared from sabinene. γ-Terpinene and δ-terpinene (also known as terpinolene) have been isolated from a variety of plant sources. They are all colorless liquids with a turpentine-like odor. Production and uses α-Terpinene is produced industrially by acid-catalyzed rearrangement of α-pinene. It has perfume and flavoring properties but is mainly used to confer pleasant odor to industrial fluids. Hydrogenation gives the saturated derivative ''p''-menthane. Biosynthesis of α-terpinene The biosynthesis of α-terpinene and other terpenoids starts with the isomerization of geranyl pyrophosphate to linalyl pyroph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuminum Cyminum
Cumin (, ; ; ''Cuminum cyminum'') is a flowering plant in the family Apiaceae, native to the Irano-Turanian Region. Its seeds – each one contained within a fruit, which is dried – are used in the cuisines of many cultures in both whole and ground form. Although cumin is used in traditional medicine, there is no high-quality evidence that it is safe or effective as a therapeutic agent. Etymology and pronunciation The term comes via Middle English ''comyn'', from Old English ''cymen'' (which is cognate with Old High German ''kumin'') and Old French cummin, both from the Latin term . This in turn comes from the Ancient Greek (), a Semitic languages, Semitic borrowing related to Hebrew language, Hebrew () and Arabic (). All of these ultimately derive from Akkadian language, Akkadian (). The English word is traditionally pronounced (), like "coming" with an ⟨n⟩ instead of ⟨ng⟩ (/ŋ/)."Cumin." '' A Way with Words'' (Radio broadcast/podcast). 25 October 2014. Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monarda Fistulosa
''Monarda fistulosa'', the wild bergamot or bee balm,Wild Bergamot , Edmonton Naturalization Group is a in the mint family , widespread and abundant as a native plant in much of North America. This plant, with showy summer-blooming pink to lavender flowers, is often used as a , , and [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isomer
In chemistry, isomers are molecules or polyatomic ions with identical molecular formula – that is, the same number of atoms of each element (chemistry), element – but distinct arrangements of atoms in space. ''Isomerism'' refers to the existence or possibility of isomers. Isomers do not necessarily share similar chemical property, chemical or physical property, physical properties. Two main forms of isomerism are structural isomerism, structural (or constitutional) isomerism, in which ''chemical bond, bonds'' between the atoms differ; and stereoisomerism (or spatial isomerism), in which the bonds are the same but the ''relative positions'' of the atoms differ. Isomeric relationships form a hierarchy. Two chemicals might be the same constitutional isomer, but upon deeper analysis be stereoisomers of each other. Two molecules that are the same stereoisomer as each other might be in different conformational forms or be different Isotopologue, isotopologues. The depth of analy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dienes
Dienes may refer to: * Dienes (surname), including a list of people with the name * the plural of diene In organic chemistry, a diene ( ); also diolefin, ) or alkadiene) is a covalent compound that contains two double bonds, usually among carbon atoms. They thus contain two alk''ene'' units, with the standard prefix ''di'' of systematic nome ..., a class of organic chemical compound * Base ten blocks used in mathematics education, also known as Dienes blocks or simply ''dienes'' {{Disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monoterpenes
Monoterpenes are a class of terpenes that consist of two isoprene units and have the molecular formula C10H16. Monoterpenes may be linear (acyclic) or contain rings (monocyclic and bicyclic). Modified terpenes, such as those containing oxygen functionality or missing a methyl group, are called monoterpenoids. Monoterpenes and monoterpenoids are diverse. They have relevance to the pharmaceutical, cosmetic, agricultural, and food industries. Biosynthesis Monoterpenes are derived biosynthetically from units of isopentenyl pyrophosphate, which is formed from acetyl-CoA via the intermediacy of mevalonic acid in the HMG-CoA reductase pathway. An alternative, unrelated biosynthesis pathway of IPP is known in some bacterial groups and the plastids of plants, the so-called MEP-(2-methyl-D-erythritol-4-phosphate) pathway, which is initiated from C5 sugars. In both pathways, IPP is isomerized to DMAPP by the enzyme isopentenyl pyrophosphate isomerase. Geranyl pyrophosphate is the precurs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coriandrum Sativum
Coriander (), whose leaves are known as cilantro () in the U.S. and parts of Canada, and dhania in parts of South Asia and Africa, is an annual herb (''Coriandrum sativum'') in the family Apiaceae. Most people perceive the leaves as having a fresh, slightly citrus taste. Due to variations in the gene OR6A2, some people perceive it to have a soap-like taste, or even a pungent or rotten taste. It is native to the Mediterranean Basin. All parts of the plant are edible, but the fresh leaves and the dried seeds are the parts most traditionally used in cooking. It is used in certain cuisines, like Mexican, Indian and Southeast Asian. Description It is a soft plant growing to tall. The leaves are variable in shape, broadly lobed at the base of the plant, and slender and feathery higher on the flowering stems. The flowers are borne in small umbels, white or very pale pink, asymmetrical, with the petals pointing away from the centre of the umbel longer () than those poi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Origanum Syriacum
''Origanum syriacum'' subsp. ''syriacum''; syn. ''Majorana syriaca'' (also ''Origanum maru'', although this primarily refers to a hybrid of ''O. syriacum''), bible hyssop, Biblical-hyssop, Lebanese oregano or Syrian oregano, is an aromatic perennial herb in the mint family, Lamiaceae. It is a preferred primary ingredient in the spice mixture ''za'atar''. ''O. syriacum'' is native to the Palestine region and was formerly used in ceremonial functions in the Temple in Jerusalem, such as for sprinkling the waters of a purification mixture made by the ashes of a burned red heifer on persons defiled by the dead. Etymology The Arabic word zaʿatar (), may refer to one of several plants, as well as the spice mixture of the same name which the plants are associated with. In many English translations of the Bible, ''ezov'' is rendered as hyssop, hence the common name for bible hyssop, believed to be a different plant generally identified with ''Hyssopus officinalis''. Problems with id ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cannabis
''Cannabis'' () is a genus of flowering plants in the family Cannabaceae that is widely accepted as being indigenous to and originating from the continent of Asia. However, the number of species is disputed, with as many as three species being recognized: '' Cannabis sativa'', '' C. indica'', and '' C. ruderalis''. Alternatively, ''C. ruderalis'' may be included within ''C. sativa'', or all three may be treated as subspecies of ''C. sativa'', or ''C. sativa'' may be accepted as a single undivided species. The plant is also known as hemp, although this term is usually used to refer only to varieties cultivated for non-drug use. Hemp has long been used for fibre, seeds and their oils, leaves for use as vegetables, and juice. Industrial hemp textile products are made from cannabis plants selected to produce an abundance of fibre. ''Cannabis'' also has a long history of being used for medicinal purposes, and as a recreational drug known by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melaleuca Alternifolia
''Melaleuca alternifolia'', commonly known as tea tree, is a species of tree or tall shrub in the myrtle family, Myrtaceae. Endemic to Australia, it occurs in southeast Queensland and the north coast and adjacent ranges of New South Wales where it grows along streams and on swampy flats, and is often the dominant species where it occurs. Description ''Melaleuca alternifolia'' is a small tree that can grow to about with a bushy crown and whitish, papery bark. The leaves are arranged alternately, sometimes scattered or whorled. The leaves are smooth, soft, linear in shape, long, and wide. They are also rich in oil with the glands prominent. Flowers occur in white or cream-colored masses of spikes long over a short period, mostly spring to early summer, and give the tree an appearance of looking fluffy. The small, woody, cup-shaped fruit, in diameter, are scattered along the branches. Taxonomy and naming This species was first formally described in 1905 by Joseph Maiden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monoterpene
Monoterpenes are a class of terpenes that consist of two isoprene units and have the molecular formula C10H16. Monoterpenes may be linear (acyclic) or contain rings (monocyclic and bicyclic). Modified terpenes, such as those containing oxygen functionality or missing a methyl group, are called monoterpenoids. Monoterpenes and monoterpenoids are diverse. They have relevance to the pharmaceutical, cosmetic, agricultural, and food industries. Biosynthesis Monoterpenes are derived biosynthetically from units of isopentenyl pyrophosphate, which is formed from acetyl-CoA via the intermediacy of mevalonic acid in the HMG-CoA reductase pathway. An alternative, unrelated biosynthesis pathway of IPP is known in some bacterial groups and the plastids of plants, the so-called MEP-(2-methyl-D-erythritol-4-phosphate) pathway, which is initiated from C5 sugars. In both pathways, IPP is isomerized to DMAPP by the enzyme isopentenyl pyrophosphate isomerase. Geranyl pyrophosphate is the precu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
