Cellulose is an organic polysaccharide composed of β(1→4) linked d-glucose units, crucial for the structural integrity of plant cell walls. Discovered in 1838 by Anselme Payen, it has various applications including in textiles, pharmaceuticals, and biofuels. Cellobiose, a disaccharide derived from cellulose, consists of two β-glucose molecules and can be hydrolyzed into glucose.

2. CELLULOSE AND CELLOBIOSE
By
Afrasiyab
6th Semester
Botany

3. CELLULOSE

4. Introduction
• Cellulose is an organic compound with the formula (C6H10O5)n,
• Polysaccharide carbohydrate consisting of a linear chain of several hundred
to many thousands of β(1→4) linked D-glucose units.
• Cellulose is an important structural component of the primary cell wall of
green plants, many forms of algae and the oomycetes..

5. History
• Cellulose was discovered in 1838 by the French
chemist Anselme Payen, who isolated it from
plant matter and determined its chemical
formula.

6. Properties
• Cellulose has no taste
• Odorless
• insoluble in water
• Soluble in organic chemicals
• Cellulose is non toxic, biodegradable solid homo-biopolymer.
• At pure state white in color.
• Molecular mass is around 1.44 × 106 to 1.8 × 106 g
• Cross bonding gives the maximum strength

9. Use of cellulose
• Cotton: composed of 87 -90% cellulose with the cotton fibers containing polymer
chains
• Pharmaceuticals: Medicines are derived from plants cellulose, cellulose acetate ,
etc.
• Cellophane: Can be obtained when a viscous cellulose reacts with acid (sulfuric
acid)
• Energy Drinks: Glucuronolacton, vitamins, and carbohydrates
• Industrial Sugar, biofuel production, using oil production, ester production

10. CELLOBIOSE

11. Introduction
• Cellobiose is a disaccharide with the formulaC12H22O11.
• Cellobiose, a reducing sugar, consists of two β-glucose molecules linked by a
β(1→4) bond.
• It can be hydrolyzed to glucose enzymatically or with acid.

12. Cont.…..
• It can be obtained by enzymatic or acidic hydrolysis of cellulose and
cellulose rich materials such as cotton, jute, or paper.

14. Properties
Chemical formula------------ C12H22O11
Molar mass------------------- 342.297 g·mol−1
Appearance ------------------ white, hard powder
Odor -------------------------- odorless
Melting point ---------------- 203.5 °C (398.3 °F; 476.6 K) (decomposes)
Solubility in water----------- 12 g/100mL
Solubility ---------------------
very slightly soluble in alcohol
insoluble in ether, chloroform

15. Reference
• www.slideshare.net
• www.google.com
• www.Wikipedia.org/wiki/cellubiose

16. THE END

17. THANKS