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Cocum
''Allophylus edulis'' ( pt, chal-chal) is a plant species in the genus ''Allophylus'' endemic to the Guianas, Brazil, Bolivia, Paraguay, Argentina and Uruguay. Phytochemistry Quebrachitol, a cyclitol, and viridiflorol, a sesquiterpenoid Sesquiterpenes are a class of terpenes that consist of three isoprene units and often have the molecular formula C15H24. Like monoterpenes, sesquiterpenes may be cyclic or contain rings, including many unique combinations. Biochemical modificati ..., are found in ''A. edulis''. Vernacular names This plant has several different common names. In Paraguay it's called ''kokû'', with a nasal ending. In Argentina, the common name is ''chal-chal'' (hence Los Chalchaleros, a folkloric music group), as in Portuguese. Other names in Brazil are ''aperta-goela, baga-de-morcego, chala-chala, chale-chale, cocum, fruta-de-paraó, fruta-de-passarinho, fruta-de-pavão, fruta-de-pavó, fruta-de-pombo, murta-branca, murta-vermelha, olho-de-pombo, pé-de-ga ...
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Vacuum (other)
Vacuum is the absence of matter. Vacuum may also refer to: *Vacuum cleaner, a home appliance which uses suction to remove dirt * Vacuum flask, an insulated storage vessel * Vacuum (outer space), the very high, but imperfect, vacuum of the solar system and interstellar space * Ultra-high vacuum * Vacuum state, the quantum state with the lowest possible energy * Vacuum Oil Company, an 1866 US petroleum company, now part of ExxonMobil * Vacuum (band), a musical group from Sweden * '' The Vacuum'', a free monthly newspaper published in Belfast, Northern Ireland *''Vacuum'', a 2006 play by Deborah McAndrew *''Vacuum'', a 2004 album by The Watch * VACUUM A vacuum is a space devoid of matter. The word is derived from the Latin adjective ''vacuus'' for "vacant" or " void". An approximation to such vacuum is a region with a gaseous pressure much less than atmospheric pressure. Physicists often di ..., a data set clean-up process {{disambiguation simple:Vacuum ...
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Augustin Saint-Hilaire
Augustin François César Prouvençal de Saint-Hilaire (4 October 17793 September 1853) was French botanist and traveller who was born and died in Orléans, France. A keen observer, he is credited with important discoveries in botany, notably the direction of the radicle in the embryo sac and the double point of attachment of certain ovules. He also described two families, the Paronychiae and the Tamariscinae, as well as many genera and species. Biography He began to publish memoirs on botanical subjects at an early age. Between 1816 and 1822 and again in 1830, he traveled in South America, especially in south and central Brazil, and the results of his study of the rich flora of the regions through which he passed appeared in several books and numerous articles in scientific journals. In his first voyage, from 1816 to 1822, he explored the Brazilian backlands, traveling ca. 9,000 km, from Southeast Brazil to Río de la Plata, including the former Cisplatina Province (Urugua ...
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Ludwig Adolph Timotheus Radlkofer
Ludwig Adolph Timotheus Radlkofer (19 December 1829, in Munich – 16 February 1927, in Munich), was a Bavarian taxonomist and botanist. Radlkofer became a physician in 1854 and earned a PhD in botany at Jena the following year. He became an associate professor of botany at the University of Munich in 1859 as well as deputy director of the botanical garden and herbarium. In 1892 he was named director of the Botanical Museum. He was made emeritus professor in 1913 and died in 1927 in the same room in which he was born. Radlkofer's main work was on the family Sapindaceae. His collections, sent by botanists from all over the world, are housed in Munich. The South African flower ''Greyia radlkoferi'' is named for him, as are the South American based genera of '' Radlkoferotoma'', and '' Radlkofera'', a monotypic genus of flowering plants from Africa belonging to the family Sapindaceae. The former genus ''Radlkoferella'' (a wastebasket genus) is now called ''Pouteria'',. Publishe ...
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Allophylus
''Allophylus'' is a genus within the plant family Sapindaceae. A list of species (incomplete): * '' Allophylus agbala'' Hauman * '' Allophylus aldabricus'' Radlk. * '' Allophylus bullatus'' Radlk. * '' Allophylus chartaceus '' (Kurz) Radlkofer * ''Allophylus chirindensis'' Baker f. * ''Allophylus cobbe'' (L.) Rausch. * ''Allophylus decipiens'' (E.Mey.) Radlk. * '' Allophylus dodsonii'' A.H.Gentry * ''Allophylus edulis'' (St.Hil.) Radlk. * '' Allophylus hispidus'' (Thwaites) Trimen * ''Allophylus marquesensis'' F. Brown * ''Allophylus natalensis'' (Sond.) De Winter * ''Allophylus pachyphyllus'' Radlk. * ''Allophylus rapensis'' F. Brown * ''Allophylus rhoidiphyllus'' Balf. f. * ''Allophylus rhomboidalis'' (Nadeaud) Radlkofer * ''Allophylus roigii'' Lippold * ''Allophylus zeylanicus'' L. * ''Allophylus zimmermannianus ''Allophylus zimmermannianus'' is a species of plant in the family Sapindaceae. It is found in Kenya and Tanzania Tanzania (; ), officially the Unite ...
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The Guianas
The Guianas, sometimes called by the Spanish loan-word ''Guayanas'' (''Las Guayanas''), is a region in north-eastern South America which includes the following three territories: * French Guiana, an overseas department and region of France * Guyana, formerly known as British Guiana from 1831 until 1966, after the colonies of Berbice, Essequibo, and Demerara, taken from the Netherlands in 1814, were merged into a single colony * Suriname, formerly Dutch Guiana, until 1814 together with Berbice, Essequibo and Demerara In the wider context, the Guianas also includes the following two territories: * Guayana Region in eastern Venezuela ( Amazonas, Bolívar, and Delta Amacuro states), formerly the Guayana Province, alternatively known as Spanish Guayana * State of Amapá in northern Brazil, known as Portuguese Guiana (or Brazilian Guiana) History Pre-colonial period Before the arrival of European colonials, the Guianas were populated by scattered bands of native Arawak ...
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Brazil
Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area and the seventh most populous. Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26 States of Brazil, states and the Federal District (Brazil), Federal District. It is the largest country to have Portuguese language, Portuguese as an List of territorial entities where Portuguese is an official language, official language and the only one in the Americas; one of the most Multiculturalism, multicultural and ethnically diverse nations, due to over a century of mass Immigration to Brazil, immigration from around the world; and the most populous Catholic Church by country, Roman Catholic-majority country. Bounded by the Atlantic Ocean on the east, Brazil has a Coastline of Brazi ...
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Bolivia
, image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square patchwork with the (top left to bottom right) diagonals forming colored stripes (green, blue, purple, red, orange, yellow, white, green, blue, purple, red, orange, yellow, from top right to bottom left) , other_symbol = , other_symbol_type = Dual flag: , image_coat = Escudo de Bolivia.svg , national_anthem = " National Anthem of Bolivia" , image_map = BOL orthographic.svg , map_width = 220px , alt_map = , image_map2 = , alt_map2 = , map_caption = , capital = La Paz Sucre , largest_city = , official_languages = Spanish , languages_type = Co-official languages , languages ...
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Paraguay
Paraguay (; ), officially the Republic of Paraguay ( es, República del Paraguay, links=no; gn, Tavakuairetã Paraguái, links=si), is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to the east and northeast, and Bolivia to the northwest. It has a population of seven million, nearly three million of whom live in the capital and largest city of Asunción, and its surrounding metro. Although one of only two landlocked countries in South America (Bolivia is the other), Paraguay has ports on the Paraguay and Paraná rivers that give exit to the Atlantic Ocean, through the Paraná-Paraguay Waterway. Spanish conquistadores arrived in 1524, and in 1537, they established the city of Asunción, the first capital of the Governorate of the Río de la Plata. During the 17th century, Paraguay was the center of Jesuit missions, where the native Guaraní people were converted to Christianity and introduced to European culture. ...
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Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. It shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, and a part of Antarctica. The earliest recorded human prese ...
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Uruguay
Uruguay (; ), officially the Oriental Republic of Uruguay ( es, República Oriental del Uruguay), is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast; while bordering the Río de la Plata to the south and the Atlantic Ocean to the southeast. It is part of the Southern Cone region of South America. Uruguay covers an area of approximately and has a population of an estimated 3.4 million, of whom around 2 million live in the metropolitan area of its capital and largest city, Montevideo. The area that became Uruguay was first inhabited by groups of hunter–gatherers 13,000 years ago. The predominant tribe at the moment of the arrival of Europeans was the Charrúa people, when the Portuguese first established Colónia do Sacramento in 1680; Uruguay was colonized by Europeans late relative to neighboring countries. The Spanish founded Montevideo as a military stronghold in the early 18th century bec ...
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Quebrachitol
Quebrachitol is a naturally occurring optically active cyclitol, a cyclic polyol. It can be found in ''Allophylus edulis'' and in the serum left after the coagulation of the ''Hevea brasiliensis'' latex in the operation of rubber tapping. It is also found in ''Cannabis sativa'', in ''Paullinia pinnata'' and in seabuckthorn. It was first isolated by Tanret in 1887 from the bark of ''Aspidosperma quebracho''. The substance was tested as a sweetening agent for diabetics in 1933. It shows a sweetening property half of that of sucrose but induces colic or diarrhoea Diarrhea, also spelled diarrhoea, is the condition of having at least three loose, liquid, or watery bowel movements each day. It often lasts for a few days and can result in dehydration due to fluid loss. Signs of dehydration often begin wi ... at concentration used to render the food palatable. Quebrachitol is a versatile building block in the construction of naturally occurring bioactive materials. For example, ...
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Cyclitol
In organic chemistry, a cyclitol is a cycloalkane containing at least three hydroxyl, each attached to a different ring carbon atom. The general formula for an unsubstituted cyclitol is or where 3 ≤ ''x'' ≤ ''n''. The name is also used for compounds that can be viewed as result of substituting various functional groups for the hydrogen atoms in such a molecule, as well as similar molecules with one or more double bonds in the ring. Cyclitols and their derivatives are some of the compatible solutes which are formed in a plant as a response to salt or water stress. Some cyclitols (e.g. quinic or shikimic acid) are parts of hydrolysable tannins. Isomerism and nomenclature Unsubstituted cyclitols with the same ring size and number of hydroxyls may exist in several structural isomers, depending on the position of the hydroxyls along the ring. For example, cyclohexanetriol exists in three distinct isomers (1,2,3-, 1,2,4-, and 1,3,5-). Furthermore, the hydrogen and the hydroxyl ...
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