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Phenyl Alkanoic Acids
Short chain ω-phenylalkanoic acids have long been known to occur in natural products. Phenylacetic, 3-phenylpropanoic and 3-phenylpropenoic ( cinnamic) acids are found in propolis, mammalian exocrine secretions or plant fragrances. During a systematic study of the lipids from seeds of the plant Araceae, the presence of 13-phenyltridecanoic acid as a major component (5-16% of total fatty acids)was discovered. Other similar compounds but with 11 and 15 carbon chain lengths and saturated or unsaturated were shown to be also present but in lower amounts. At the same time, the even carbon chain ω-phenylalkanoic acids of C10 up to C16 were discovered in halophilic bacteria. ω-phenylalkanoic acid (x = 1 to 17) Later, an exhaustive study of 17 genus of the subfamily Aroideae of Araceae revealed the presence of three major acids, 11-phenylundecanoic acid, 13-phenyltridecanoic acid and 15-phenylpentadecanoic acid in seed lipids. Other odd carbon number acids from C7 to C23 were detected ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenylacetic Acid
Phenylacetic acid (PAA; conjugate base phenylacetate), also known by various synonyms, is an organic compound containing a phenyl functional group and a carboxylic acid functional group. It is a white solid with a strong honey-like odor. Endogenously, it is a catabolite of phenylalanine. As a commercial chemical, because it can be used in the illicit production of phenylacetone (used in the manufacture of substituted amphetamines), it is subject to controls in countries including the United States and China. Occurrence Phenylacetic acid has been found to be an active auxin (a type of plant hormone), found predominantly in fruits. However, its effect is much weaker than the effect of the basic auxin molecule indole-3-acetic acid. In addition the molecule is naturally produced by the metapleural gland of most ant species and used as an antimicrobial. It is also the oxidation product of phenethylamine in humans following metabolism by monoamine oxidase and subsequent metabolism o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fatty Acids
In chemistry, particularly in biochemistry, a fatty acid is a carboxylic acid with an aliphatic chain, which is either saturated or unsaturated. Most naturally occurring fatty acids have an unbranched chain of an even number of carbon atoms, from 4 to 28. Fatty acids are a major component of the lipids (up to 70% by weight) in some species such as microalgae but in some other organisms are not found in their standalone form, but instead exist as three main classes of esters: triglycerides, phospholipids, and cholesteryl esters. In any of these forms, fatty acids are both important dietary sources of fuel for animals and important structural components for cells. History The concept of fatty acid (''acide gras'') was introduced in 1813 by Michel Eugène Chevreul, though he initially used some variant terms: ''graisse acide'' and ''acide huileux'' ("acid fat" and "oily acid"). Types of fatty acids Fatty acids are classified in many ways: by length, by saturation vs unsatura ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trypanosoma Cruzi
''Trypanosoma cruzi'' is a species of parasitic euglenoids. Among the protozoa, the trypanosomes characteristically bore tissue in another organism and feed on blood (primarily) and also lymph. This behaviour causes disease or the likelihood of disease that varies with the organism: Chagas disease in humans, dourine and surra in horses, and a brucellosis-like disease in cattle. Parasites need a host body and the haematophagous insect triatomine (descriptions "assassin bug", "cone-nose bug", and "kissing bug") is the major vector in accord with a mechanism of infection. The triatomine likes the nests of vertebrate animals for shelter, where it bites and sucks blood for food. Individual triatomines infected with protozoa from other contact with animals transmit trypanosomes when the triatomine deposits its faeces on the host's skin surface and then bites. Penetration of the infected faeces is further facilitated by the scratching of the bite area by the human or animal host. Life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasmodium Falciparum
''Plasmodium falciparum'' is a Unicellular organism, unicellular protozoan parasite of humans, and the deadliest species of ''Plasmodium'' that causes malaria in humans. The parasite is transmitted through the bite of a female ''Anopheles'' mosquito and causes the disease's most dangerous form, falciparum malaria. It is responsible for around 50% of all malaria cases. ''P. falciparum'' is therefore regarded as the deadliest parasite in humans. It is also associated with the development of blood cancer (Burkitt's lymphoma) and is classified as a List of IARC Group 2A carcinogens, Group 2A (probable) carcinogen. The species originated from the malarial parasite ''Laverania'' found in gorillas, around 10,000 years ago. Alphonse Laveran was the first to identify the parasite in 1880, and named it ''Oscillaria malariae''. Ronald Ross discovered its transmission by mosquito in 1897. Giovanni Battista Grassi elucidated the complete transmission from a female Anopheles, anopheline mosquit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antiplasmodial
''Plasmodium'' is a genus of unicellular eukaryotes that are obligate parasites of vertebrates and insects. The life cycles of ''Plasmodium'' species involve development in a blood-feeding insect host which then injects parasites into a vertebrate host during a blood meal. Parasites grow within a vertebrate body tissue (often the liver) before entering the bloodstream to infect red blood cells. The ensuing destruction of host red blood cells can result in malaria. During this infection, some parasites are picked up by a blood-feeding insect (mosquitoes in majority cases), continuing the life cycle. ''Plasmodium'' is a member of the phylum Apicomplexa, a large group of parasitic eukaryotes. Within Apicomplexa, ''Plasmodium'' is in the order Haemosporida and family Plasmodiidae. Over 200 species of ''Plasmodium'' have been described, many of which have been subdivided into 14 subgenera based on parasite morphology and host range. Evolutionary relationships among different ''Plasm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piper Heterophyllum
Piper may refer to: People * Piper (given name) * Piper (surname) Arts and entertainment Fictional characters Comics * Piper (Morlock), in the Marvel Universe * Piper (Mutate), in the Marvel Universe Television * Piper Chapman, lead character in the American comedy-drama series ''Orange Is the New Black'' * Piper Halliwell, one of the lead characters on ''Charmed'' * Piper Hart, Henry Hart's little sister in the Nickelodeon series ''Henry Danger'' * Piper Willis, in the Australian soap opera ''Neighbours'' * Piper Willowbrook, an elf in the Nickelodeon series ''Mysticons'' * Mr. Piper, host on the 1960s Canadian television show of the same name * Piper, an artificial intelligence in ''Emergence'' * Piper, a tactical expert in ''Storm Hawks'' Other * Piper McLean, a daughter of Aphrodite and one of the seven in Rick Riordan's ''The Heroes of Olympus'' * Piper Pinwheeler, a character in the 2005 animated film '' Robots'' * The Piper, a character in ''The Keys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isoprene
Isoprene, or 2-methyl-1,3-butadiene, is a common volatile organic compound with the formula CH2=C(CH3)−CH=CH2. In its pure form it is a colorless volatile liquid. Isoprene is an unsaturated hydrocarbon. It is produced by many plants and animals (including humans) and its polymers are the main component of natural rubber. C. G. Williams named the compound in 1860 after obtaining it from thermal decomposition (pyrolysis) of natural rubber; he correctly deduced the empirical formula C5H8. Natural occurrences Isoprene is produced and emitted by many species of trees (major producers are oaks, poplars, eucalyptus, and some legumes). Yearly production of isoprene emissions by vegetation is around 600 million metric tons, half from tropical broadleaf trees and the remainder primarily from shrubs. This is about equivalent to methane emissions and accounts for around one-third of all hydrocarbons released into the atmosphere. In deciduous forests, isoprene makes up approximately 80% o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piper Gaudichaudianum
Piper may refer to: People * Piper (given name) * Piper (surname) Arts and entertainment Fictional characters Comics * Piper (Morlock), in the Marvel Universe * Piper (Mutate), in the Marvel Universe Television * Piper Chapman, lead character in the American comedy-drama series ''Orange Is the New Black'' * Piper Halliwell, one of the lead characters on ''Charmed'' * Piper Hart, Henry Hart's little sister in the Nickelodeon series ''Henry Danger'' * Piper Willis, in the Australian soap opera ''Neighbours'' * Piper Willowbrook, an elf in the Nickelodeon series ''Mysticons'' * Mr. Piper, host on the 1960s Canadian television show of the same name * Piper, an artificial intelligence in ''Emergence'' * Piper, a tactical expert in ''Storm Hawks'' Other * Piper McLean, a daughter of Aphrodite and one of the seven in Rick Riordan's ''The Heroes of Olympus'' * Piper Pinwheeler, a character in the 2005 animated film '' Robots'' * The Piper, a character in ''The Keys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piper Aduncum
''Piper aduncum'', the spiked pepper, matico, hierba del soldado, achotlín, cordoncillo, higuillo or higuillo de hoja menuda, is a flowering plant in the family Piperaceae. Like many species in the family, the matico tree has a peppery odor. It grows wild on the coasts and in the forests of Central and South America and in the Interandean Valleys, up to above sea level. Culinary use Like many species of the family, this tree has the characteristic smell of pepper. The fruits are used as a condiment and for flavoring cocoa. It is sometimes used as a substitute for long pepper. Traditional medicine In the Amazon Rainforest, many of the native tribes use matico leaves as an antiseptic. In Peru, it was used for stopping hemorrhages and treating ulcers, and in European practice in the treatment of diseases of the genitals and urinary organs, such as those for which cubeb was often prescribed. Essential oil The chemical composition of the essential oil differs depending on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piper Crassinervium
Piper may refer to: People * Piper (given name) * Piper (surname) Arts and entertainment Fictional characters Comics * Piper (Morlock), in the Marvel Universe * Piper (Mutate), in the Marvel Universe Television * Piper Chapman, lead character in the American comedy-drama series ''Orange Is the New Black'' * Piper Halliwell, one of the lead characters on ''Charmed'' * Piper Hart, Henry Hart's little sister in the Nickelodeon series ''Henry Danger'' * Piper Willis, in the Australian soap opera ''Neighbours'' * Piper Willowbrook, an elf in the Nickelodeon series ''Mysticons'' * Mr. Piper, host on the 1960s Canadian television show of the same name * Piper, an artificial intelligence in ''Emergence'' * Piper, a tactical expert in ''Storm Hawks'' Other * Piper McLean, a daughter of Aphrodite and one of the seven in Rick Riordan's ''The Heroes of Olympus'' * Piper Pinwheeler, a character in the 2005 animated film '' Robots'' * The Piper, a character in ''The Keys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piperaceae
The Piperaceae (), also known as the pepper family, are a large family of flowering plants. The group contains roughly 3,600 currently accepted species in 5 genera. The vast majority of species can be found within the two main genera: ''Piper'' (2,171 species) and ''Peperomia'' (over 1,000 species). Members of the Piperaceae may be small trees, shrubs, or herbs. The distribution of this group is best described as pantropical. The best-known species, ''Piper nigrum'', yields most peppercorns that are used as spices, including black pepper, although its relatives in the family include many other spices. Etymology The name Piperaceae is likely to be derived from the Sanskrit term ''pippali'', sa, पिप्पली, which was used to describe long peppers (like those of ''Piper longum''). Taxonomy The APG III system of 2009 recognizes this family, and assigns it to the order Piperales in the unranked clade magnoliids. The family consists of five genera: ''Piper'', ''Peperom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
