イソマルトース
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2014/03/12 23:50:49」(JST)
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Isomaltose |
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Systematic name
6-O-α-D-Glucopyranosyl-D-glucopyranose
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Other names
O-α-D-glucopyranosyl-α[1-6]-α-D-glucopyranoside
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Identifiers |
CAS number |
499-40-1 Y |
PubChem |
439193 |
ChemSpider |
388333 N |
MeSH |
Isomaltose |
ChEBI |
CHEBI:113902 N |
Jmol-3D images |
Image 1 |
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O(C[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O)[C@H]2O[C@@H]([C@@H](O)[C@H](O)[C@H]2O)CO
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InChI=1S/C12H22O11/c13-1-3-5(14)8(17)10(19)12(23-3)21-2-4-6(15)7(16)9(18)11(20)22-4/h3-20H,1-2H2/t3-,4-,5-,6-,7+,8+,9-,10-,11?,12+/m1/s1 N
Key: DLRVVLDZNNYCBX-RTPHMHGBSA-N N
InChI=1/C12H22O11/c13-1-3-5(14)8(17)10(19)12(23-3)21-2-4-6(15)7(16)9(18)11(20)22-4/h3-20H,1-2H2/t3-,4-,5-,6-,7+,8+,9-,10-,11?,12+/m1/s1
Key: DLRVVLDZNNYCBX-RTPHMHGBBU
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Properties |
Molecular formula |
C12H22O11 |
Molar mass |
342.30 g mol−1 |
N (verify) (what is: Y/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) |
Infobox references |
Isomaltose is a disaccharide similar to maltose, but with a α-(1-6)-linkage instead of the α-(1-4)-linkage. It is a reducing sugar. Both of the sugars are glucose and pyranoses. Isomaltose is produced when high maltose syrup is treated with the enzyme transglucosidase (TG) and is one of the major components in the mixture isomaltooligosaccharide.
It is a product of the caramelization of glucose. [1]
See also[edit]
References[edit]
- ^ Sugisawa, Hirqshi; Edo, Hiroshi (1966). "The Thermal Degradation of Sugars I. Thermal Polymerization of Glucose". Journal of Food Science 31 (4): 561. doi:10.1111/j.1365-2621.1966.tb01905.x.
English Journal
- Simple, fast, and efficient process for producing and purifying trehalulose.
- Wei Y, Liang J, Huang Y, Lei P, Du L, Huang R.SourceState Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, China.
- Food chemistry.Food Chem.2013 Jun 1;138(2-3):1183-8. doi: 10.1016/j.foodchem.2012.11.115. Epub 2012 Dec 5.
- A new property of recombinant trehalose synthase (GTase) from Thermus thermophilus HB-8 (ATCC 27634) was found and described in this study. GTase can act on sucrose and catalyze trehalulose formation without isomaltose, isomaltulose, or isomelezitose, releasing small amounts of glucose and fructose
- PMID 23411229
- Enzymatic properties of a thermostable α-glucosidase from acidothermophilic crenarchaeon Sulfolobus tokodaii strain 7.
- Park JE, Park SH, Woo JY, Hwang HS, Cha J, Lee H.SourceDepartment of Food Science and Nutrition, College of Human Ecology, Pusan National University, Busan 609-735, Korea.
- Journal of microbiology and biotechnology.J Microbiol Biotechnol.2013 Jan;23(1):56-63.
- We have characterized the putative α-glucosidase gene (st2525) selected by total genome analysis from the acidothermophilic crenarchaeon Sulfolobus tokodaii strain 7. The ORF was cloned and expressed as a fusion protein in Escherichia coli, and recombinant ST2525 was purified by Ni-NTA affinity chr
- PMID 23314368
- Combining protein and carbohydrate increases postprandial insulin levels but does not improve glucose response in patients with type 2 diabetes.
- Ang M, Müller AS, Wagenlehner F, Pilatz A, Linn T.SourceMedizinische Klinik und Poliklinik III, Justus-Liebig-Universität, 35392 Giessen, Germany.
- Metabolism: clinical and experimental.Metabolism.2012 Dec;61(12):1696-702. doi: 10.1016/j.metabol.2012.05.008. Epub 2012 Jun 15.
- OBJECTIVE: A combined load of carbohydrate and protein stimulates insulin secretion. However, results on postprandial glucose responses in type 2 diabetic (T2D) subjects have been inconclusive. Therefore, we investigated the effects of co-ingestion of carbohydrate and protein on glucose and insulin
- PMID 22705093
Japanese Journal
- α-グルコシダーゼ高生産麹菌を用いた米味噌のイソマルトース増加効果
- 渡辺 隆幸,佐藤 恵里,佐々木 康子,府金 雅昭,菊地 仁,佐藤 勉,瓜生 摂,今野 宏
- 日本醸造協会誌 = Journal of the Brewing Society of Japan 107(3), 191-196, 2012-03-15
- NAID 10030301784
- Steric hindrance by 2 amino acid residues determines the substrate specificity of isomaltase from Saccharomyces cerevisiae(ENZYMOLOGY, PROTEIN ENGINEERING, AND ENZYME TECHNOLOGY)
- Yamamoto Keizo,Miyake Hideo,Kusunoki Masami,Osaki Shigeyoshi
- Journal of bioscience and bioengineering 112(6), 545-550, 2011-12
- … The structures of the E277A isomaltase mutant from Saccharomyces cerevisiae in complex with isomaltose or maltose were determined at resolutions of 1.80 and 1.40Å, respectively. … The root mean square deviations between the corresponding mainchain atoms of free isomaltase and the E277A-isomaltose complex structures and those of free isomaltase and the E277A-maltose complex structures were found to be 0.131Å and 0.083Å, respectively. …
- NAID 110008897326
Related Links
- Medical Dictionary isomaltose i·so·mal·tose (ī'sō-môl'tōs', -tōz') n. A disaccharide that is an isomer of maltose. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company.
- i·so·mal·tose (s-môl t s, -t z) n. A disaccharide that is an isomer of maltose. isomaltose an isomeric form of maltose formed by the action of maltase on glucose. Found in beer, honey and other natural substances. Called also ...
Related Pictures
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- 英
- isomaltose
-isomaltose
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蔗糖イソ麦芽糖吸収不全症