Monosaccharide derivatives, Biology

MONOSACCHARIDE DERIVATIVES

They are modified monosaccharides.

GLYCOSIDES

  • They are compounds formed by condensation reaction between a sugar and hydroxyl group of another substance which may be a sugar, a sterol, glycerol, methyl alcohol, etc.
  • Streptomycin is a glycoside.
  • Other medicinally important ones are cardiac glycosides.

ALCOHOLIC SUGAR

  • When aldehyde group of monosaccharide is converted into alcohol (OH) group, then it is called alcoholic sugar.
  • Glucose → Sorbitol
  • Mannose → Mannitol
  • Reduction of aldehyde and ketone group converts a sugar into sugar alcohol.
  • Ascorbic acid or vitamin C is sugar acid.
  • Glucouronic acid and iduronic acid are components of chondroitin sulphate, cell wall and gums.

AMINO SUGARS (HEXOSAMINES)

  • When -OH group of second carbon converted into -NH then it is called amino sugar.
  • Glucose → Glucosamine
  • They are generally formed by replacement of hydroxyl group at carbon 2 with amino group (-NH ).
  • Glucosamine is the most common amino sugar that occurs in chitin, fungal wall and hyaluronic acid.
  • Galactosamine is used in synthesis of cartilage.
  • Mannosamine is found in mucoprotein.
  • Amino sugars also occur in some antibiotics.
Posted Date: 10/9/2012 3:29:21 AM | Location : United States







Related Discussions:- Monosaccharide derivatives, Assignment Help, Ask Question on Monosaccharide derivatives, Get Answer, Expert's Help, Monosaccharide derivatives Discussions

Write discussion on Monosaccharide derivatives
Your posts are moderated
Related Questions
What is the structure into which the follicle is transformed after ovulation? What is the importance of that structure in the menstrual cycle? The follicle that released the ov

X e n o t r a n s p l a n t a t i o n Over the past 20 years transplantation of heart and kidney has become almost a routine in human but the availability of

Atelectasis and Pneumonia Signs and symptoms are LV failure, hypovolemia, hypervolemia or renal vasoconstriction. Decreased breath sounds, poor ABG and poor cough reflex

Explain Itraconazole It has a broader spectrum of activity than fluconazole. It is active against a wide variety of fungi including Cryptococcus neoformans, Aspergillus spp., B

Feline calcivirus infection This disease is caused by a virus under the family Caliciviridae. Its symptoms  include rhinitis, tracheitis and pneumonia. The animals are lethargi

what are structural adaptation of flatworm to it''s enviroment /

Q. Can you explain Yersinia Enterocolitica Gastroenteritis? Yersiniosis is an infectious disease caused by a bacterium of the genus Yersinia. Most human illness is caus

Fowl pox Fowl-pox is a highly infectious disease of poultry, especially chickens and turkeys. Pheasants, ducks, geese and guineafowls also suffer from an infection similar to f

F o wl pox Fowl pox is a contagious disease of birds, caused by a member of family Poxviridae, characterized by wart-like nodules on the skin and diphtheritic necrotic membra

Uses of Urine Urine is natural, easily available, harmless, beneficial compound, which offers protection against a number of diseases. Now a day's urine after distillation from