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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 backwards because it can be obtained from ''noix de galle'' ( galls), and to distinguish it from ''acide gallique'' (gallic acid). The molecule 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 urolintins. History Ellagic acid was first discovered by ... [...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. left, 142px, Ellagic acid. Hexahydroxydiphenic acid is a component of some ellagitannins, such as casuarictin. Luteic acid is the monolactone and ellagic acid is the dilactone Lactones are cyclic carboxylic esters, containing a 1-oxacycloalkan-2-one structure (), or analogues having unsaturation or heteroatoms replacing one or more carbon atoms of the ring. Lactones are formed by intramolecular esterification of the co ... of hexahydroxydiphenic acid. See also * Diphenic acid References Ellagitannins Pyrogallols Biphenyls Hydroxybenzoic 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 scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... 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". References External links *{{Official website, http://www.tandfonline.com/toc/bfsn20/current Nutrition and dietetics journals Taylor & Francis academic journals Monthly jou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myriophyllum Spicatum
''Myriophyllum spicatum'' (Eurasian watermilfoil or spiked water-milfoil) 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 a submerged aquatic plant, grows in still or slow-moving water, and is considered to be a highly invasive species. Description Eurasian watermilfoil has slender stems up to long. The submerged 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 water milfoil has 12- 21 pairs of leaflets while northern watermilfoil ''M. sibiricum'' only has 5–9 pairs. The two can hybridize and the resulting hybrid plants can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Robur
''Quercus robur'', commonly known as common oak, pedunculate oak, European oak or English 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 west of the Caucasus. It is widely cultivated in temperate regions elsewhere and has escaped into the wild in scattered parts of China and North America. Description ''Quercus robur'' is a large deciduous tree, with circumference of grand oaks from to an exceptional . The Majesty Oak with a circumference of is the thickest tree in Great Britain. The Brureika (Bridal Oak) in Norway with a circumference of (2018) and the Kaive Oak in Latvia with a circumference of are among the thickest trees in Northern Europe. The largest historical oak was known as the Imperial Oak from Bosnia and Herzegovina. This specimen was recorded at 17.5 m in circumference at breast height and estimated at over 150 m³ in total volume. It collapsed in 1998. The species has l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Alba
An oak is a tree or shrub in the genus ''Quercus'' (; Latin "oak tree") of the beech family, Fagaceae. There are approximately 500 extant species of oaks. The common name "oak" also appears in the names of species in related genera, notably '' Lithocarpus'' (stone oaks), as well as in those of unrelated species such as ''Grevillea robusta'' (silky oaks) and the Casuarinaceae (she-oaks). The genus ''Quercus'' is native to the Northern Hemisphere, and includes deciduous and evergreen species extending from cool temperate to tropical latitudes in the Americas, Asia, Europe, and North Africa. North America has the largest number of oak species, with approximately 160 species in Mexico of which 109 are endemic and about 90 in the United States. The second greatest area of oak diversity is China, with approximately 100 species. Description Oaks have spirally arranged leaves, with lobate margins in many species; some have serrated leaves or entire leaves with smooth margins. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arsenic Acid
Arsenic acid or trihydrogen arsenate is the chemical compound with the 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 ''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 p''K''a values are close to those for phosphoric acid. The highly basic arsenate ion () is the product of the third ionization. Unlike phosphoric acid, arsenic acid is an oxidizer, as illustrated by its ability to convert iodide to iodine. Preparation Arsenic acid is prepa ... [...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 Kaiserin Friedrich, invented the 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 and father of Julius Neubronner. During the Revolution of 1848 he directed the local militia. The wife of Wilhelm Neubronner and mother of Julius ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penicillium
''Penicillium'' () is a genus of ascomycetous 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 ''Observationes in ordines plantarum naturales''; he wrote, "''Penicillium. Thallus e floccis caespitosis septatis simplicibus aut ramosis fertilibus erectis apice penicillatis''", where ''penicillatis'' means "having tufts of fine hair". Link included three species—'' P. candidum'', '' P. expansum'', and '' P. glaucum''—all of which produ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valonea
''Quercus macrolepis'', the Valonia oak, is a species of oak in the beech family, Fagaceae. Formerly, it was commonly treated as a subspecies of the closely related and Sympatry, sympatric Quercus ithaburensis, mount Tabor oak. At present, however, it is mostly granted species-status. Geographical range It is found in the Balkans, and in the southern and eastern Mediterranean, including Albania, the Greek Islands, Turkey, Israel, and Morocco. Systematics Within the oak genus, Quercus macrolepis is classified in the List of Quercus species#Subgenus Cerris, subgenus ''Cerris'', List of Quercus species#Section Cerris, section ''Cerris'', which includes the Quercus cerris, turkey oak and related species. It is most closely related to Mount Tabor oak (Quercus ithaburensis) and Quercus brantii, Brant's oak (Quercus brantii). Uses The cups, known as valonia, are used for Tanning (leather), tanning and dyeing as are the unripe acorns called camata or camatina. The ripe acorns are e ... [...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 India and Nepal east to southwest China (Yunnan), and south to Sri Lanka, Malaysia, and Vietnam.Flora of China''Terminalia chebula''/ref> In India, it is known as "Harad" in Hindi and Urdu, "Kadukkai" in Tamil, "Hirada" in Marathi, "Hilikha" in Assamese and "Horitoky" in Bengali. Taxonomy Swedish naturalist Anders Jahan Retzius described the species. 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 yel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pomegranate
The pomegranate (''Punica granatum'') is a fruit-bearing deciduous shrub in the family Lythraceae, subfamily Punicoideae, that grows between tall. The pomegranate was originally described throughout the Mediterranean Basin, Mediterranean region. It was introduced into Spanish America in the late 16th century and into California by New Spain, Spanish settlers in 1769. The fruit is typically in season in the Southern Hemisphere from March to May, and in the Northern Hemisphere from September to February. As intact sarcotestas or juice, pomegranates are used in baking, cooking, juice blends, meal garnish (food), garnishes, smoothies, and alcoholic beverages, such as cocktails and wine. Pomegranates are widely cultivated throughout the Middle East and Caucasus region, North Africa, north and tropical Africa, Iran, Armenia, the Indian subcontinent, Central Asia, the drier parts of Southeast Asia, and the Mediterranean Basin. Etymology The name pomegranate derives from medie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dividivi
''Libidibia coriaria'', synonym ''Caesalpinia coriaria'', is a 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 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. 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 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'', and in 1830, Diederich von Schlechtendal transferre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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