Biochemistry

D- xylose is a part of plant polysaccharides, especially a lot of it in wood, straw, ears of corn, and shells ofgrain . (cyclic form) H OH . • 1 г H 1 z H HOH,C 0 H HOH.C-C-C- 2 1 1 c- 1 V H^ >OH OH H OH 0 • H OH (acyclic form) D- xylose This pentose has a sweet taste, so it is used in the confectionery industry and in the cultivation of fodder yeast. During oxidation, xylanic acid is formed from it , and then trioxyxylene-glutaric acid, which is used in the food industry as a substitute for citric acid. Xylitol is obtained from xylose, xylitol , used in the diet of obese and diabetes patients to replace sweet carbohydrates. HO H D- Xylose CH 2 OH Xylitol D- Ribose can be in solutions in a cyclic form: CH,OH (acyclic form) (cyclic forms) D- Ribose 141