ACTIVITY-5. Draw the Haworth formula for D-mannose and D-galactose. Label the alpha and beta anomer. CYCLIC FORMS OF FRUCTOSE D-fructose, a ketohexose sugar, can be presented using furanose and pyranose. Cyclic Fisher (furanose) 1 2 Haworth formula (furanose) Open chain Fisher 1 ÇH2OH HOH,C- HO- 1 2 FO HO 13 ÇH2OH ÇH2OH -H- HO-3 H- H- 14 ОН Но FHO- ОН 3 H 4 Он H-5 FHO- 6 CH,OH H 6 CH2OH D-fructose Alpha form Alpha form Cyclic Fisher (pyranose) Haworth formula (pyranose) 1 HOH2C- 2 3. 1 HO- H O CH2OH Но он 2 H-4 FHO- Но 14 OH [3 H-5 OH H H-6 H Alpha form of D-fructose Alpha form of D-fructose ACTIVITY-6. Draw the Fisher and Haworth formula for beta-D-fructose (furanose and form). Label the beta furanose and beta pyranose. pyranose LO
Carbohydrates
Carbohydrates are the organic compounds that are obtained in foods and living matters in the shape of sugars, cellulose, and starch. The general formula of carbohydrates is Cn(H2O)2. The ratio of H and O present in carbohydrates is identical to water.
Starch
Starch is a polysaccharide carbohydrate that belongs to the category of polysaccharide carbohydrates.
Mutarotation
The rotation of a particular structure of the chiral compound because of the epimerization is called mutarotation. It is the repercussion of the ring chain tautomerism. In terms of glucose, this can be defined as the modification in the equilibrium of the α- and β- glucose anomers upon its dissolution in the solvent water. This process is usually seen in the chemistry of carbohydrates.
L Sugar
A chemical compound that is represented with a molecular formula C6H12O6 is called L-(-) sugar. At the carbon’s 5th position, the hydroxyl group is placed to the compound’s left and therefore the sugar is represented as L(-)-sugar. It is capable of rotating the polarized light’s plane in the direction anticlockwise. L isomers are one of the 2 isomers formed by the configurational stereochemistry of the carbohydrates.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
