Cellobiose


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cellobiose

[‚sel·ō′bī‚ōs]
(organic chemistry)
C12H22O11 A disaccharide which does not occur freely in nature or as a glucoside; a unit of cellulose and lichenin; crystallizes as minute water-soluble crystals from alcohol. Also known as cellose.

Cellobiose

 

a carbohydrate of the disaccharide class. Composed of two glucose radicals that are joined by a β-glucoside bond, cellobiose is the basic structural unit of cellulose. It is a white crystalline substance that is readily soluble in water. Cellobiose is characterized by reactions of the aldehyde (semiacetal) group and of the hydroxyl groups. In acid hydrolysis or when catalyzed by the enzyme β-glucosidase, it splits to form two molecules of glucose. Cellobiose is obtained by the partial hydrolysis of cellulose. It is found in free form in the sap of certain trees.

References in periodicals archive ?
2015)--that were tested as stimuli on intact shrimp included the series of 20 amino acids (L-isomer); the disaccharides, trehalose, cellobiose, maltose, and sucrose; and the monosaccharides, glucose and fructose, for a total of 26 compounds.
Altogether 12 saccharides and sugar alcohols (glucose, galactose, fructose, arabinose, xylose, ribose, fucose, cellobiose, glucitol, mannitol, arabitol, and myoinositol) were identified using capillary electrophoresis.
Reactor design for minimizing product inhibition during enzymatic lignocelluloses hydrolysis: I, significance and mechanism of cellobiose and glucose inhibition on cellulitic enzymes.
Sugars C3 A2 A3 A4 A5 Esculine Hdrolysis -ve +ve +ve +ve +ve Arabinose -ve +ve +ve -ve +ve Xylose -ve -ve -ve -ve -ve Adonitol -ve -ve -ve -ve -ve Rhomnose -ve -ve -ve +ve -ve Cellobiose -ve -ve +ve +ve +ve Melibinose -ve +ve -ve +ve -ve Raffinose -ve +ve +ve +ve -ve Trehalose -ve +ve +ve +ve +ve Glucose -ve +ve +ve +ve +ve Lactose -ve +ve -ve +ve -ve Sacarose -ve +ve +ve +ve +ve
The b-D-glucosidase or cellobiase convert cellooligosaccharides and cellobiose to glucose (Dienes et al.
Carbohydrate DM15 * 1 Xylose + 2 Trehalose + 3 Mellibiose ++ 4 Galactose ++ 5 Mannitol + 6 Sorbitol - 7 Raffinose ++ 8 Cellobiose +++ 9 Arabinose - 10 Fructose +++ 11 Maltose +++ 12 Lactose +++ 13 Rhamnose - 14 Glucose +++ 15 Sucrose ++ 16 Glycerol - * (+++): strongly positive, (++): fairly positive, (+): weakly positive, (-): negative Table 3: Antibiotic sensitivity of the isolate DM15.
The key is the strain's ability to ferment cellobiose and galactose simultaneously, which makes the process much more efficient," he said.
Even given good consumption of sugar, toasted wood contributes to wine the fermentable sugar cellobiose, which Brett can also utilize.
The contents of other two disaccharides, cellobiose and turanose were in the ranges of 1.
which degrades the molecule further by removing cellobiose units from the free chain ends; and (iii) [beta]-glucosidase (EC 3.