3.1 Antioxidant
The working of anti-oxidants is shown in figure 8. The substances which
hold back the deterioration by oxidation like of fats, oils, foods etc.,
some components like Vitamin C, Vitamin E etc. responds to the damaging
effects of oxidation in a living organism. The free radicals possessing
an unpaired electron which are considered as fragments of molecules that
are generally very reactive. They are continuously produced in the cells
as by-products of metabolism [39]. Plants naturally have tendency to
develop some specific anti-oxidative defense enzymes like catalase,
peroxidase, polyphenol oxidase, ascorbate peroxidase and glutathione
reductase etc. to control the free radicals of oxygen under various
environmental stress conditions [40]. To avoid threats related to
the oxidative stress, antioxidant is required in the form of food
supplement [41].