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Aspergillusol A
Aspergillusol A is an alpha-glucosidase inhibitor isolated from marine ''Aspergillus''. Structurally, it consists of an erythritol group in the center, with two hydroxyimino-phenylpropanoyl groups attached to it from either side. It was synthesized in 2010 by researchers from King Fahd University of Petroleum and Minerals King Fahd University of Petroleum and Minerals (KFUPM) ( ar, جامعة الملك فهد للبترول و المعادن, – short: ar, جامعة البترول ), after 1975 as the University of Petroleum and Minerals and initially as the ..., starting with 4-hydroxybenzaldehyde. References Alpha-glucosidase inhibitors Ketoximes {{organic-compound-stub ...
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Alpha-glucosidase Inhibitor
Alpha-glucosidase inhibitors (AGIs) are oral anti-diabetic drugs used for diabetes mellitus type 2 that work by preventing the digestion of carbohydrates (such as starch and table sugar). Carbohydrates are normally converted into simple sugars (monosaccharides) by alpha-glucosidase enzymes present on cells lining the intestine, enabling monosaccharides to be absorbed through the intestine. Hence, alpha-glucosidase inhibitors reduce the impact of dietary carbohydrates on blood sugar. Examples and differences Examples of alpha-glucosidase inhibitors include: * Acarbose- Precose or Glucobay * Miglitol – Glyset * Voglibose Even though the drugs have a similar mechanism of action, there are subtle differences between acarbose and miglitol. Acarbose is an oligosaccharide, whereas miglitol resembles a monosaccharide. Miglitol is fairly well absorbed by the body, as opposed to acarbose. Moreover, acarbose inhibits pancreatic alpha-amylase in addition to alpha-glucosidase, and is ...
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Aspergillus
'''' () is a genus consisting of several hundred mold species found in various climates worldwide. ''Aspergillus'' was first catalogued in 1729 by the Italian priest and biologist Pier Antonio Micheli. Viewing the fungi under a microscope, Micheli was reminded of the shape of an '' aspergillum'' (holy water sprinkler), from Latin ''spargere'' (to sprinkle), and named the genus accordingly. Aspergillum is an asexual spore-forming structure common to all ''Aspergillus'' species; around one-third of species are also known to have a sexual stage. While some species of ''Aspergillus'' are known to cause fungal infections, others are of commercial importance. Taxonomy Species ''Aspergillus'' consists of 837 species of fungi. Growth and distribution ''Aspergillus'' is defined as a group of conidial fungi—that is, fungi in an asexual state. Some of them, however, are known to have a teleomorph (sexual state) in the Ascomycota. With DNA evidence, all members of the genu ...
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Erythritol
Erythritol is an organic compound, a four-carbon sugar alcohol (or polyol) with no optical activity, used as a food additive and sugar substitute. It is naturally occurring. It can be made from corn using enzymes and fermentation. Its formula is , or HO(CH2)(CHOH)2(CH2)OH; specifically, one particular stereoisomer with that formula. Erythritol is 60–70% as sweet as sucrose (table sugar). However, erythritol is almost completely noncaloric and does not affect blood sugar or cause tooth decay. Japanese companies pioneered the commercial development of erythritol as a sweetener in the 1990s. History Erythritol was discovered in 1848 by Scottish chemist John Stenhouse and first isolated in 1852. In 1950 it was found in blackstrap molasses that was fermented by yeast, and it became commercialized as a sugar alcohol in the 1990s in Japan. Natural occurrence and production Erythritol occurs naturally in some fruit and fermented foods. It also occurs in human body fluids such as ...
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King Fahd University Of Petroleum And Minerals
King Fahd University of Petroleum and Minerals (KFUPM) ( ar, جامعة الملك فهد للبترول و المعادن, – short: ar, جامعة البترول ), after 1975 as the University of Petroleum and Minerals and initially as the College of Petroleum and Minerals, is a nonprofit institution in Dhahran, Saudi Arabia. Among Saudi Arabian universities, its science, engineering, business, and management programs are highly regarded in the country as well as in the whole region. In 2022, KFUPM was ranked in the 163rd position according the QS World University Rankings, and was ranked the third university in the Arab region. The university was ranked fourth, by the American National Academy of Inventors, among the top 100 worldwide universities for granting US Utility Patents in 2019, and ranked 14th in 2020. Stanford University has recently released a list of the top 2 percent of the most-cited scientists in various disciplines. The exhaustive list has 186,177 resea ...
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Alpha-glucosidase Inhibitors
α-Glucosidase (EC 3.2.1.20, maltase, glucoinvertase, glucosidosucrase, maltase-glucoamylase, α-glucopyranosidase, glucosidoinvertase, α-D-glucosidase, α-glucoside hydrolase, α-1,4-glucosidase, α-D-glucoside glucohydrolase; systematic name α-D-glucoside glucohydrolase) is a glucosidase located in the brush border of the small intestine that acts upon α(1→4) bonds: : Hydrolysis of terminal, non-reducing (1→4)-linked α-D-glucose residues with release of D-glucose This is in contrast to β-glucosidase. α-Glucosidase breaks down starch and disaccharides to glucose. Other glucosidases include: * Cellulase * Beta-glucosidase * Debranching enzyme Mechanism α-Glucosidase hydrolyzes terminal non-reducing (1→4)-linked α-glucose residues to release a single α-glucose molecule. α-Glucosidase is a carbohydrate-hydrolase that releases α-glucose as opposed to β-glucose. β-Glucose residues can be released by glucoamylase, a functionally similar enzyme. The substr ...
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