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Amomum Compactum
''Alpinia nutans'', the shellflower, or dwarf cardamom, is a Southeast Asian plant of the ginger family ( Zingiberaceae), and is a medicinal plant used to control hypertension, as diuretic, antifungal, and antiulcer. In Japan it is used as food preservative. Characteristics Its flowers have a porcelain look, are shell-like and bloom prolifically on a 30-cm stalk. The flower's single fertile stamen has a massive anther. The globose white stigma of the pistil extends beyond the tip of the anther. The foliage of ''Alpinia nutans'' is evergreen in areas that do not have a hard freeze. It has a very distinctive ''cardamom'' fragrance when brushed or rubbed, but this is not the plant that produces the spice by that name. Chemistry The rhizome oil of ''Alpinia speciosa'' contains some fatty acids with an odd number of carbon atoms, which are less common in nature than fatty acids with even numbers of carbon atoms. The major one is pentadecanoic acid (C-15, 21.9%) and others are tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Moritz Schumann
Karl Moritz Schumann (17 June 1851 – 22 March 1904) was a German botanist. Schumann was born in Görlitz. He was curator of the Botanisches Museum in Berlin-Dahlem from 1880 until 1894. He also served as the first chairman of the ''Deutsche Kakteen-Gesellschaft'' (German Cactus Society) which he founded on 6 November 1892. He died in Berlin. Karl Moritz Schumann participated as a collaborator in ''Die Natürlichen Pflanzenfamilien'' by Adolf Engler and K. A. E. Prantl and in ''Flora Brasiliensis'' by Carl Friedrich Philipp von Martius. The genera '' Schumannianthus'' ( Gagnepain), '' Schumanniophyton'' ( Harms), '' Schumannia'' (Kuntze Kuntze is a surname of German origin. People with that name include: * Carl Kuntze (1922-2006), Dutch rower who competed at the 1952 Summer Olympics * Edward J. Kuntze (1826-1870), Prussian-born American sculptor * Otto Kuntze (1843-1907), German ...) and several species were named after him, including: Bibliography * Schumann, K. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tricosylic Acid
Tricosylic acid, or tricosanoic acid, is a 23-carbon long-chain saturated fatty acid with the chemical formula CH3(CH2)21COOH. Natural occurrence Tricosylic acid occurs naturally in the leaves of '' Cecropia adenopus'' and in fennel. It also occurs in small quantities in the lipids of various other plants. See also *List of saturated fatty acids *Very long chain fatty acids *List of carboxylic acids Carboxylic acids are organic acids characterized by a carboxyl (-COOH) functional group. The naming of these compounds is governed by IUPAC nomenclature, which ensures systematic and consistent naming of chemicals. Numerous organic compounds have o ... References Fatty acids Alkanoic acids {{organic-compound-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Domesticated Plants And Animals Of Austronesia
One of the major Early human migrations, human migration events was the Maritime history, maritime Austronesian expansion, settlement of Austronesia, the islands of the Indo-Pacific by the Austronesian peoples, believed to have started from at least 5,500 to 4,000 Before Present, BP (3500 to 2000 BCE). These migrations were accompanied by a set of domesticated, semi-domesticated, and commensal plants and animals transported via outrigger canoe, outrigger ships and catamarans that enabled early Austronesians to thrive in the islands of Maritime Southeast Asia (also known as 'Island Southeast Asia'. e.g.: Philippines, Indonesia), Near Oceania (Melanesia), Remote Oceania (Micronesia and Polynesia), Madagascar, and the Comoros Islands. They include domesticated plants, crops and domesticated animals, animals believed to have originated from the Hemudu culture, Hemudu and Majiabang cultures in the hypothetical pre-Austronesian homelands in mainland China, as well as other plants and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lipid Peroxide
Lipid peroxidation is the chain of reactions of oxidative degradation of lipids. It is the process in which free radicals "steal" electrons from the lipids in cell membranes, resulting in cell damage. This process proceeds by a free radical chain reaction mechanism. It most often affects polyunsaturated fatty acids, because they contain multiple double bonds in between which lie methylene bridges (-CH2-) that possess especially reactive hydrogen atoms. As with any radical reaction, the reaction consists of three major steps: initiation, propagation, and termination. The chemical products of this oxidation are known as lipid peroxides or lipid oxidation products (LOPs). Initiation Initiation is the step in which a fatty acid radical is produced. The most notable initiators in living cells are reactive oxygen species (ROS), such as OH· and HOO·, which combines with a hydrogen atom to make water and a fatty acid radical. Propagation The fatty acid radical is not a very sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trolox
Trolox (6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid) is a water-soluble analog of vitamin E sold by Hoffman-LaRoche. It is an antioxidant like vitamin E and it is used in biological or biochemical applications to reduce oxidative stress or damage. Trolox equivalent antioxidant capacity (TEAC) is a measurement of antioxidant strength based on Trolox, measured in units called Trolox Equivalents (TE), e.g. micromolTE/100 g. Due to the difficulties in measuring individual antioxidant components of a complex mixture (such as blueberries or tomatoes), Trolox equivalency is used as a benchmark for the antioxidant capacity of such a mixture. Trolox equivalency is most often measured using the ABTS decolorization assay. The TEAC assay is used to measure antioxidant capacity of foods, beverages and supplements. Ferric reducing ability of plasma (FRAP) is an antioxidant capacity assays which uses Trolox as a standard. Oxygen radical absorbance capacity (ORAC) used to be an a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antioxidant
Antioxidants are compounds that inhibit oxidation, a chemical reaction that can produce free radicals. This can lead to polymerization and other chain reactions. They are frequently added to industrial products, such as fuels and lubricants, to prevent oxidation, and to foods to prevent spoilage, in particular the rancidification of oils and fats. In cells, antioxidants such as glutathione, mycothiol or bacillithiol, and enzyme systems like superoxide dismutase, can prevent damage from oxidative stress. The only dietary antioxidants are vitamins A, C, and E, but the term ''antioxidant'' has also been applied to numerous other dietary compounds that only have antioxidant properties in vitro, with little evidence for antioxidant properties in vivo. Dietary supplements marketed as antioxidants have not been shown to maintain health or prevent disease in humans. History As part of their adaptation from marine life, terrestrial plants began producing non-marine antioxi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyuria
Polyuria () is excessive or an abnormally large production or passage of urine (greater than 2.5 L or 3 L over 24 hours in adults). Increased production and passage of urine may also be termed diuresis. Polyuria often appears in conjunction with polydipsia (increased thirst), though it is possible to have one without the other, and the latter may be a cause or an effect. Primary polydipsia may lead to polyuria. Polyuria is usually viewed as a symptom or sign of another disorder (not a disease by itself), but it can be classed as a disorder, at least when its underlying causes are not clear. Causes The most common cause of polyuria in both adults and children is uncontrolled diabetes mellitus, which causes osmotic diuresis, when glucose levels are so high that glucose is excreted in the urine. Water follows the glucose concentration passively, leading to abnormally high urine output. In the absence of diabetes mellitus, the most common causes are decreased secretion of aldosteron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antihypertensive Drug
Antihypertensives are a class of drugs that are used to treat hypertension (high blood pressure). Antihypertensive therapy seeks to prevent the complications of high blood pressure, such as stroke and myocardial infarction. Evidence suggests that reduction of the blood pressure by 5 mmHg can decrease the risk of stroke by 34% and of ischaemic heart disease by 21%, and can reduce the likelihood of dementia, heart failure, and mortality from cardiovascular disease. There are many classes of antihypertensives, which lower blood pressure by different means. Among the most important and most widely used medications are thiazide diuretics, calcium channel blockers, ACE inhibitors, angiotensin II receptor antagonists (ARBs), and beta blockers. Which type of medication to use initially for hypertension has been the subject of several large studies and resulting national guidelines. The fundamental goal of treatment should be the prevention of the important endpoints of hypertension, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferulic Acid
Ferulic acid is a hydroxycinnamic acid, an organic compound with the formula (CH3O)HOC6H3CH=CHCO2H. The name is derived from the genus ''Ferula'', referring to the giant fennel (''Ferula communis''). Classified as a phenolic phytochemical, ferulic acid is an amber colored solid. Esters of ferulic acid are found in plant cell walls, covalently bonded to hemicellulose such as arabinoxylans. Occurrence in nature As a building block of lignocelluloses, such as pectin and lignin, ferulic acid is ubiquitous in the plant kingdom, including a number of vegetable sources. It occurs in particularly high concentrations in popcorn and bamboo shoots. It is a major metabolite of chlorogenic acids in humans along with caffeic and isoferulic acid, and is absorbed in the small intestine, whereas other metabolites such as dihydroferulic acid, feruloylglycine and dihydroferulic acid sulfate are produced from chlorogenic acid in the large intestine by the action of gut flora. In cereals, f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arachidic Acid
Arachidic acid, also known as icosanoic acid, is a saturated fatty acid with a 20-carbon chain. It is a minor constituent of cupuaçu butter (7%), perilla oil (0–1%), peanut oil (1.1–1.7%), corn oil (3%),U.S. Department of Agriculture, Agricultural Research Service. 2007. USDA National Nutrient Database for Standard Reference, Release 20Nutrient Data Laboratory Home Page/ref> and cocoa butter (1%). The salts and esters of arachidic acid are known as arachidates. Its name derives from the Latin ''arachis''—peanut. It can be formed by the of arachidonic acid. Reduction of arachidic aci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linolenic Acid
Linolenic acid is a type of naturally-occurring fatty acid. It can refer to either of two octadecatrienoic acids (i.e. with an 18-carbon chain and three double bonds, which are found in the '' cis'' configuration), or a mixture of the two. Linolenate (in the form of triglyceride esters of linolenic acid) is often found in vegetable oils; traditionally, such fatty acylates are reported as the fatty acids: *α-Linolenic acid, an omega-3 (n-3) fatty acid * γ-Linolenic acid, an omega-6 (n-6) fatty acid See also * Linoleic acid Linoleic acid (LA) is an organic compound with the formula COOH(CH2)7CH=CHCH2CH=CH(CH2)4CH3. Both alkene groups are ''cis''. It is a fatty acid sometimes denoted 18:2 (n-6) or 18:2 ''cis''-9,12. A linoleate is a salt or ester of this acid. ..., a similarly named fatty acid References {{chemistry index Alkenoic acids Aromatase inhibitors Fatty acids Essential fatty acids Essential nutrients ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
