Pharmacognosy - medicinal plants (herbs)
Pharmacognosy - medicinal plants (herbs)

Theme XIII: Vitamins

B Complex

B Complex generalizations. Vitamin B1. Description, chemical formula, role and characteristics. Deficiency and sources of vitamin B1 or thiamine.

B complex. Characteristics.

The B Complex vitamins are water-soluble and are important in the metabolic process of carbohydrates and other catalyzing reactions.


Vitamin B1 or Thiamine

Is the catalyst of carbohydrate metabolism, allowing metabolizing the pyruvic acid and the carbohydrates to release their energy. It´s involved in the synthesis of substances that regulate the nervous system.


Vitamin B1 chemically is an amine with the chemical formula:

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The thiamine richest foods are pork, viscera (liver, heart and kidney), brewer's yeast, lean meats, eggs, green leafy vegetables, cereal husks, wheat germ, berries, nuts and legumes.


In the milling of the cereals part of this vitamin is lost, that requires enriching the produced flours in order to reduce the deficit.


Vitamin B1 deficiency causes the disease called beriberi which entails serious dysfunctions that end with death.

Other B Vitamins

See also

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