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Ellagic Acid
Ellagic acid is a polyphenol found in numerous fruits and vegetables. It is the dilactone of hexahydroxydiphenic acid. Name The name comes from the French term ''acide ellagique'', from the word ''galle'' spelled backward because it can be obtained from ''noix de galle'' (galls), and to distinguish it from ''acide gallique'' ( gallic acid). The molecular structure resembles to that of two gallic acid molecules being assembled "head to tail" and bound together by a C–C bond (as in biphenyl, or in diphenic acid) and two lactone links (cyclic carboxylic esters). Metabolism Biosynthesis Plants produce ellagic acid from hydrolysis of tannins such as ellagitannin and geraniin. Biodegradation Urolithins are gut flora human metabolites of dietary ellagic acid derivatives. Ellagic acid has low bioavailability, with 90% remaining unabsorbed from the intestines until metabolized by microflora to the more bioavailable urolithins. History Ellagic acid was first discove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexahydroxydiphenic Acid
Hexahydroxydiphenic acid is an organic compound with the formula HO)3C6HCO2Hsub>2. It is the oxidatively coupled derivative of gallic acid It is a white solid, although samples are typically brown owing to oxidation. Occurrence left, 142px, Ellagic acid. Luteic acid and ellagic acid are the mono- and di lactone of hexahydroxydiphenic acid, respectively. Hexahydroxydiphenic acid is a component of some ellagitannin image:Castalagin.svg, 130px, Castalagin is a representative ellagitannin, characterized by coupled gallic acid substituents The ellagitannins are a diverse class of hydrolyzable tannins, a type of polyphenol formed primarily from the oxidative link ...s, such as casuarictin. See also * Diphenic acid References Ellagitannins Pyrogallols Biphenyls Trihydroxybenzoic acids {{phenol-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Critical Reviews In Food Science And Nutrition
''Critical Reviews in Food Science and Nutrition'' is a food science journal published monthly by Taylor & Francis. It was originally established in 1970 as ''Critical Reviews in Food Technology'', but changed to its current name in 1975. The editor-in-chief is Fergus M. Clydesdale (University of Massachusetts Amherst). According to the ''Journal Citation Reports'', the journal has a 2019 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... of 7.860, ranking it 3rd out of 89 journals in the category "Nutrition and Dietetics" and 4th out of 139 journals in the category "Food Science and Technology". As of 2024, the impact factor is 7.3. References External links *{{Official website, http://www.tandfonline.com/toc/bfsn20/current Nutrition and dietetics journals Taylor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myriophyllum Spicatum
''Myriophyllum spicatum'' (Eurasian watermilfoil or spiked water-milfoil) is a submerged perennial aquatic plant which grows in still or slow-moving water. Eurasian watermilfoil is native to Europe, Asia, and North Africa, but has a wide geographic and climatic distribution among some 57 countries, extending from northern Canada to South Africa. It is considered to be a highly invasive species. Description Eurasian watermilfoil has slender stems up to long. The submerged leaf, leaves (usually between 15–35 mm long) are borne in pinnate whorls of four, with numerous thread-like leaflets roughly 4–13 mm long. Plants are monoecious with flowers produced in the leaf axils (male above, female below) on a spike 5–15 cm long held vertically above the water surface, each flower is inconspicuous, orange-red, 4–6 mm long. Eurasian watermilfoil has 12–21 pairs of leaflets while northern watermilfoil ''M. sibiricum'' only has 5–9 pairs. The two can hybridize a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Robur
''Quercus robur'', the pedunculate oak, is a species of flowering plant in the beech and oak family, Fagaceae. It is a large tree, native plant, native to most of Europe and western Asia, and is widely cultivated in other temperate regions. It grows on soils of near neutral Soil pH, acidity in the lowlands and is notable for its value to natural ecosystems, supporting a very wide diversity of herbivorous insects and other pests, predators and pathogens. Description Pedunculate oak is a deciduous tree up to tall, with a single stout trunk that can be as much as in girth (circumference at breast height) or even 14 m in Pollarding, pollarded specimens. Older trees tend to be pollarded, with boles (the main trunk) about 3 m long. They often live longer and become more stout than unpollarded trees. The crown is spreading and unevenly domed, and trees often have massive lower branches. The bark is greyish-brown and closely grooved, with vertical plates. There are often large burrs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Alba
''Quercus alba'', the white oak, is one of the preeminent hardwoods of eastern and central North America. It is a long-lived oak, native to eastern and central North America and found from Minnesota, Ontario, Quebec, and southern Maine south as far as northern Florida and eastern Texas. Specimens have been documented to be over 450 years old. Although called a white oak, it is very unusual to find an individual specimen with white bark; the usual colour is a light gray. The name comes from the colour of the finished wood. In the forest it can reach a magnificent height and in the open it develops into a massive broad-topped tree with large branches striking out at wide angles. Description ''Quercus alba'' typically reaches heights of at maturity, and its canopy can become quite massive as its lower branches are apt to extend far out laterally, parallel to the ground. Trees growing in a forest will become much taller than ones in an open area which develop to be short and mass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arsenic Acid
Arsenic acid or arsoric acid is the chemical compound with the chemical formula, formula . More descriptively written as , this colorless acid is the arsenic analogue of phosphoric acid. Arsenate and phosphate salts behave very similarly. Arsenic acid as such has not been isolated, but is only found in solution, where it is largely ionized. Its hemihydrate form () does form stable crystals. Crystalline samples dehydrate with condensation at 100 °C. Properties It is a tetrahedral species of idealized symmetry group, symmetry ''C''3v with As–O bond lengths ranging from 1.66 to 1.71 Å. Being a triprotic acid, its acidity is described by three equilibria: :, p''K''a1 = 2.19 :, p''K''a2 = 6.94 :, p''K''a3 = 11.5 These acid dissociation constant, p''K''a values are close to those for phosphoric acid. The highly basic arsenate, arsenate ion () is the product of the third ionization. Unlike phosphoric acid, arsenic acid is an oxidizer, as illustrated by its ability to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julius Löwe
Julius Gustav Neubronner (8 February 1852 – 17 April 1932) was a German apothecary, inventor, company founder, and a pioneer of amateur photography and film. He was part of a dynasty of apothecaries in Kronberg im Taunus. Neubronner was court apothecary to Victoria, Princess Royal, Kaiserin Friedrich, invented the pigeon photography, pigeon photographer method for aerial photography, was one of the first film amateurs in Germany, and founded a factory for adhesive tapes. After his death, the company was directed for 70 years by his son Carl Neubronner (13 January 1896 – 19 November 1997). Father and grandfather The Neubronner family was resident in Kronberg as an apothecaries' family since Christian Neubronner had taken over a pharmacy there in 1808. In 1844 the pharmacy passed to his son Sohn Wilhelm Georg Neubronner (1813–1894), a longtime friend of painter Anton Burger (artist), Anton Burger and father of Julius Neubronner. During the Revolutions of 1848 in the German st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penicillium
''Penicillium'' () is a genus of Ascomycota, ascomycetous fungus, fungi that is part of the mycobiome of many species and is of major importance in the natural environment, in food spoilage, and in food and drug production. Some members of the genus produce penicillin, a molecule that is used as an antibiotic, which kills or stops the growth of certain kinds of bacteria. Other species are used in cheesemaking. According to the ''Dictionary of the Fungi'' (10th edition, 2008), the widespread genus contains over 300 species. Taxonomy The genus was first described in the scientific literature by Johann Heinrich Friedrich Link in his 1809 work ; he wrote, , () where means "having tufts of fine hair". Link included three species—''Penicillium candidum, P. candidum'', ''Penicillium expansum, P. expansum'', and ''Penicillium glaucum, P. glaucum''—all of which produced a brush-like conidiophore (asexual spore-producing structure). The common apple rot fungus ''P.&n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valonea
''Quercus ithaburensis'' subsp. ''macrolepis'', the Valonia oak, is a subspecies of ''Quercus ithaburensis'', a member of the beech family, Fagaceae. It may also be treated as a separate species, ''Quercus macrolepis''. Taxonomy The Valonia oak was first described as the species ''Quercus macrolepis'' by Carl Friedrich Kotschy in 1860. It was reduced to a subspecies of ''Quercus ithaburensis'' in 1981. Within the oak genus, ''Q. ithaburensis'' is classified in the subgenus ''Cerris'', section ''Cerris'', which includes ''Quercus cerris'', the Turkey oak, and related species. It is most closely related to ''Quercus brantii'', Brant's oak. Distribution ''Quercus ithaburensis'' subsp. ''macrolepis'' is native from south-east Italy, through the Balkans (Albania, Bulgaria, former Yugoslavia) and Greece, including Crete and the East Aegean Islands), to the eastern Mediterranean (Turkey, Lebanon and Syria. It is absent from the Palestine region The region of Palestin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terminalia Chebula
''Terminalia chebula'', commonly known as black- or chebulic myrobalan, is a species of ''Terminalia'', native to South Asia from Pakistan, India and Nepal east to southwest China (Yunnan), and south to Sri Lanka, Malaysia, and Vietnam.Flora of China''Terminalia chebula''/ref> Taxonomy Swedish naturalist Anders Jahan Retzius described the species in Observ. Bot. 5: 31 in 1788. Many varieties are known, such as: *''T. c.'' var. ''chebula'' – leaves and shoots hairless, or only hairy when very young *''T. c.'' var. ''tomentella'' – leaves and shoots silvery to orange hairy Description ''Terminalia chebula'' is a medium to large deciduous tree growing to tall, with a trunk up to in diameter. The leaves are alternate to subopposite in arrangement, oval, long and broad with a petiole. They have an acute tip, cordate at the base, margins entire, glabrous above with a yellowish pubescence below. The dull white to yellow flowers are monoecious, and have a strong, unpleasan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pomegranate
The pomegranate (''Punica granatum'') is a fruit-bearing deciduous shrub in the family Lythraceae, subfamily Punica, Punicoideae, that grows between tall. Rich in symbolic and mythological associations in many cultures, it is thought to have originated from Afghanistan and Iran before being introduced and exported to other parts of Asia, Africa, and Europe. It was introduced into Spanish America in the late 16th century and into California by New Spain, Spanish settlers in 1769. It is widely cultivated throughout West Asia and the Caucasus region, South Asia, Central Asia, North Africa, north and tropical Africa, the drier parts of Southeast Asia, and the Mediterranean Basin. The fruit is typically in season in the Northern Hemisphere from September to February, and in the Southern Hemisphere from March to May. The pomegranate and its juice are variously used in baking, cooking, juice blends, garnish (food), garnishes, non-alcoholic drinks, and cocktails. Etymology The name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dividivi
''Libidibia coriaria'', Synonym (taxonomy), synonym ''Caesalpinia coriaria'', is a Legume, leguminous tree or large shrub native to the Caribbean, Central America, Mexico, and northern and western South America. Common names include divi-divi, cascalote, guaracabuya, guatapana, nacascol, tan yong, and ''watapana'' (Aruba). Description ''L. coriaria'' rarely reaches its maximum height of because its growth is Reaction wood, contorted by the trade winds that batter the exposed coastal sites where it often grows. In other environments it grows into a low dome shape with a clear sub canopy space. leaf, Leaves are bipinnate, with 5–10 pairs of pinnae, each pinna with 15–25 pairs of leaflets; the individual leaflets are 7 mm long and 2 mm broad. The fruit is a twisted legume, pod long. Taxonomy The species was first described by Nikolaus Joseph von Jacquin in 1763, as ''Poinciana coriaria''. In 1799, Carl Ludwig Willdenow transferred it to the genus ''Caesalpinia' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
