webmedi.blogspot.com

 ASCORBIC ACID (VITAMIN C) BRAND NAME:-Limcee, vitamin c etc. ASCORBIC ACID is known as Vitamin c. CHEMISTRY AND SOURCE:- ASCORBIC ACID is a 6 carbon organic acid with structural similarly to glucose. It is a potent reducing agent and L- form is biologically active, citrus fruit (lemon, orange) and black currants are the richest source; others are tomato, potato, green chillies, cabbage and other vegetables. Human milk is richer in vit. C (25-50mg/L) than cows milk  ABSORPTION AND FATE:-  it is nearly completely absorbed from g.i.t. and widely distributed extra - and intracellularly. Plasma concentrations and total body store of vit c is realated to daily intake. The usual 60mg /day intake results in about 0.8 mg/dl in plasma and 1.5 g in the body as a whole. Increasing proportion are excreted in urine with higher intakes. Body is not able to store more than 2.5g .It is partly oxidized to active (dehydroascorbic acid ) and inactive (oxalic acid) metabolites. PHYSIOLOGICAL...