D -Cellobiose

Fig. 7 Compounds obtained from D-mannose (11), D-galactose (12), D-maltose (49), and D-cellobiose (50)...

It is worth pointing out that the ketones derivatives 45a, 45e obtained in one step from D-glucose and D-cellobiose were previously prepared in seven and eight steps, respectively, and low overall yields from commercial 2,3,4,6-tetra-(9-benzyl d-glucopyranose [113]. 

During purification procedures cellobiase activity was monitored by measuring nitrophenol (at A42onm) release for p-nitrophenyl-/ -D-glucoside (JO). Kinetic studies and enzyme characterization were carried out using / -D-cellobiose as substrate with the product, glucose, measured with a Beckman Glucose Analyzer (JO). Assay conditions were pH 4.8 and 50°C. 

Cellobiose is also in the focus of interest with respect to its conformational features. Rasmussen et al. [87] used the PEF300 force field program and they calculated for P-D-cellobiose five conformers at the glycosidic bond within 3 kcal/mol, namely... 

K. Kurita, N. Hirakawa, and Y. Iwakura, Synthetic polymers containing sugar residues, 7. Synthesis and properties of polyurethanes from D-cellobiose and diisocyanates, Makromol. Chem., 181 (1980) 1861-1870. 

R. W. Kane and J. D. Timpa, A high-performance liquid chromatography study of D-cellobiose degradation under Fenton conditions, J. Carbohydr. Chem., 11 (1992) 779-797. 

D-glucan glucohydrolases (EC 3.2.1.74), which liberate D-glucose from l,4-/3-D-glucans and hydrolyze D-cellobiose slowly, and 1,4-/3-D-glucan cellobiohydrolase (EC 3.2.1.91), which liberates D-cellobiose from... 

Fig. 1 Effect of carbon sources concentration on xylanase production by B. circulans Dl, after 48 h of cultivation. Oat spelt xylan (squares) D-maltose (circles) D-galactose (triangles) D-glicose (inverted triangles) D-cellobiose (diamonds) D-arabinose (plus signs)...

Fig. 11.4.4. Separation of oxime derivatives of saccharides. Chromatographic conditions column, polar-bonded amino column (Lichrosorb NH2) mobile phase, acetonitrile-water (80 20) detection, UV at 220 nm. Peaks are O-methyloximes of 1, D-glucose 2, D-maltose 3, D-cellobiose 4, D-maltotriose. Reproduced from Chen and McGinnis (1983), with permission.

Figure 3 C chemical shifts of C6 carbons vs. torsion angles X a flt-D-glucose, b d-D-glucose H O, c 3 D-glucose, d B-D-cellobiose, e a-D-lactose H O, f 0-D-lactose, g cellulose I. o d-glucose and O-glucose residues,...

Figure 12.2.6. Conformational energy maps calculated for (a) D-maltose and (b) D-cellobiose. Contours are in kcal mol with increments above the minimum (x) of 0.5 kcal-mol. ...

Sasaki M, Jojima T, Inui M, Yukawa H. (2008). Simultaneous utilization of D-cellobiose, D-glucose, and D-xylose by recombinant Corynebacterium glutamicum under oxygen-deprived conditions. Appl Microbiol Biotechnol, 81,691-699. 

C12H20O11 340.283 Formed by microbial degradation of D-cellobiose. Potent inducer of cellulase in Trichoderma reesei. Cryst. (EtOH). 

Hepta-Ac 2,2, 3,3, 4, 6,6 -Hepta-O-acetyl-1 -thio-p-D-cellobiose. 4-0-(2,3,4,6-Tet-ra-0-acetyl-p-D-glucopyranosyl)-2,3,6-tri-O-acetyl-l-thio-p-D-glucopyranose [68636-40-8]... 

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