CHAPTER ONE

INTRODUCTION

1.1    ASCORBIC ACID

Vitamin C otherwise known as ascorbic acid is a water soluble vitamin that is naturally present in some foods, added to others and taken as a dietary supplement. Though it is derived from glucose, humans and some other primates like guinea pigs, teleost, fishes, bats and birds cannot synthesize it invivo due to the genetic mutation that prevents them from synthesizing L-gluconolactone oxidase enzyme, which converts glucose to ascorbic acid. Vitamin C can be synthesized by some other animals like dogs, goats, sheep, etc. (Storn, 1972).

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