Cellobiose
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| Cellobiose | |
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| Molecular formula | C12H22O11 |
| Molar mass | 342.30 |
| CAS number | [16462-44-5] |
| Solubility | 12 g/100mL |
| PubChem | |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Cellobiose is a disaccharide with the formula [HOCH2CHO(CHOH)3]2O. The molecule is derived from the condensation of two glucose molecules linked in a β(1→4) bond. It can be hydrolyzed by bacteria or cationic ion exchange resins[1] to give glucose. Cellobiose has eight free alcohol (COH) groups and three ether linkages, which give rise to strong -inter- and intra-molecular hydrogen bonds
It can be obtained by enzymatic or acidic hydrolysis of cellulose and cellulose rich materials such as cotton, jute, or paper. Cellulose is a polymer of glucose units linked by β(1→4) bonds.
Treatment of cellulose with acetic anhydride and sulfuric acid, gives cellobiose tetraacetate, which cannot engage in hydrogen bonding and is soluble in nonpolar organic solvents.[2]
[edit] References
- ^ Cancerweb.ncl.ac.uk
- ^ Braun, G. "α-Cellobiose Octaacetate" Organic Syntheses, Collected Volume 2, p.124 (1943). [1]
[edit] External links
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