Pharmacognosy - medicinal plants (herbs)

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Theme XIII: Vitamins

Vitamin E

Vitamin E. Description, chemical formula, role and characteristics. Sources of vitamin E.

The biochemical mechanisms by which vitamin E acts in the body are still unknown, however it is known that its primary function occurs in the cells membrane. There, it interacts with the phospholipids, cholesterol and triglycerides which are the main structural components of the membranes.

The chemical formula of Vitamin E is:

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It is an antioxidant involved in the reactions of destruction of called free radicals, detrimental substances resulting from the oxidative destruction of polyunsaturated fats.

Vitamin E participates in the formation of red blood cells, muscle and other tissues and in preventing the oxidation of vitamin A and fats.

It is found in vegetable oils, wheat germ, liver and green leafy vegetables.

While stored in the body, it seems that the overdose of vitamin E is less toxic than other fat soluble vitamins.

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