pyranose


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pyranose

[′pī·rə‚nōs]
(biochemistry)
A sugar whose cyclic or ring structure resembles that of pyran.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Delcour, "The bread dough stability improving effect of pyranose oxidase from trametes multicolor and glucose oxidase from Aspergillus niger: unraveling the molecular mechanism," Journal of Agricultural and Food Chemistry, vol.
Since the amount of periodate consumed was more than twice the amount of formic acid produced, it is possible that many linkages exist in the pyranose 1,2-linked, 1,4-linked, 1,2,6-linked, 1,4,6-linked, and 1,2,4-linked forms or furanose 1-linked forms.
Very recently, we reported the synthesis and comparative antimicrobial studies of a number of furanose, pyranose and disaccharide acetates [13], and acylates [14].
The first step is the binding of the a-D- pyranose form of the substrate with O3 and O4 coordinated with M1 (The residues involved with substrate binding are highlighted (Blue) on Fig.
Alginate is a binary heteropolymer containing varying proportions of 1 4-linked a L guluronic acid (G-blocks) and AYDmannuronic acid (M-blocks) units in a pyranose form arranged in linear blocks.
The enzymatic product and substrate in the GALE assay are isomers possessing very similar structure, with the difference only in the axial vs equatorial orientation of the hydroxy group on position 4 carbon of the pyranose ring.
Digestion of cellulose produces glucose and cellobiose, while digestion of hemicellulose produces mostly xylose and other sugars, such as galactose, mannose, arabinose, pyranose, glucuronicacid, andgalacturonicacidas secondary products [43-45].
Thanks to a bias of the conformational equilibria towards the all-equatorial form of the pyranose ring, the configurational assignment was rather straightforward: large spin-spin coupling constants (9-11 Hz) indicated a trans-diaxial orientation of the corresponding vicinal protons, while all other relative positions (axial-equatorial and equatorial-equatorial) resulted in small couplings between them (2-4 Hz).
The bands due to C-O antisymmetric bridge stretching and C-O-C pyranose ring skeletal vibration were detected at 1157 [cm.sup.-1].
1993), the strength of covalent bonds in the pyranose rings and between glucose units of the cellulose polymer chain (Kalima & Jasni 2004), or the orientation of cellulose microfibrils along the axis of the fiber (Sanchis Gritsch & Murphy 2005).
The stereochemistry of the hydroxyl groups in the pyranose ring structure of the sugar moieties dictates the function of the oligosaccharide chain.
3B) is assigned to the first overtone of the fundamental CH stretching vibrational mode and is due to the furanose or pyranose ring (invariable constituent of hemicellulose).