pyranose


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pyranose

(ˈpaɪrəˌnəʊs)
n
(Chemistry) chem a compound whose molecular structure contains a saturated pyran ring
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Band at 1031.54 [cm.sup.-1] was attributed to C--O stretching region as complex bands, resulting from C--O and C--O--C stretching vibrations and peak at 822.55 [cm.sup.-1] and 777.42 [cm.sup.-1] was due to pyranose rings.
This increasing redox potential reflects the electron withdrawing properties of heterocyclic pyranose rings.
The bands observed from 600 [cm.sup.-1] to 1150 [cm.sup.-1] are characteristic of the starch and are also called starch fingerprints due to their furanose and pyranose rings.
There are 30 AA genes in this genome including 5 AA1 (multicopper oxidases), 2 AA2 (lignin-modifying peroxidases), 11 AA3 (glucose-methanol-choline oxidoreductase including cellobiose dehydrogenase, aryl-alcohol oxidase/glucose oxidase, alcohol oxidase, pyranose oxidase), 2 AA4 (vanillyl-alcohol oxidase), 4 AA5 (copper radical oxidases), 1 AA6 (1,4-benzoquinone reductase), 3 AA7 (glucooligosaccharide oxidase), and 2 AA9 (lytic polysaccharide monooxygenase) genes.
The oxidative coupling is mainly induced by the presence of free radical-generating agents, such as enzymes (e.g., glucose oxidase and pyranose 2-oxidase) or chemicals (e.g., hydrogen peroxide).
The weak 1028-1093 [cm.sup.-1] band corresponded to CO-C stretching in the pyranose ring.
Sugar oxazolines are bicyclic molecules having a distorted structure where a six-membered pyranose ring and a five-membered oxazoline ring are fused sharing the anomeric and C2 positions.
plantarum isolated from pellets fed to the calves (incubated in both plain and 2.5% NaCl-MRS agar, Figures 2(a) and 2(b)) yielded the BBL-ID code 011066-3-062 characterized by positive reactions for L-methionine, L-phenylalanine, L-leucine, L-alanine, L-isoleucine, p-n-p-[beta]-D-galactoside, p-n-p-[beta]-D-glucoside, p-n-p-[alpha]-D-glucoside, p-n-p-N- acetylglucosaminide, 4MU-[beta]-D-cellobiopyranoside, furanose, and pyranose. Compared to L.
The chemical structure of DNJ is a glucose analogue with an NH group substituting for the oxygen atom of the pyranose ring [100].