Water soluble Vitamins::
There are three type of vitamin
1. vitamin B complex
2. Biotin (vitamin H)
3. Vitamin C
Vitamin B Complex:::
There are more than ten members in the B complex group of vitamins of these vitamins B1 B6 B12 Nicotinic acid and Folic acid are used most widely
Vitamin B1::
Chemistry: Chemically it is Thiamine or Aneurine It is water soluble and partially thermostable it cang with stand cooking at 100.c for a short time longstanding cooking specially in alkali medium decreases its potency it is however stable in acid medium
Source ::
It is found in husk of cereals pulses nuts etc it is also found in yeast beets beans carrots and cauliflowers to a good extent it is destroyed in machine polished rice Eggs yolk is a good source of vitamin B1
Funcation::
(1) It acts as a coenzyme (e.g. Flavin adenine dinucleotide FAD) in oxidation of pyruvic and lactic acids it aids the oxidation of sugars in the brain and other tissues such as muscles
(2) Fats are synthesised from carbohydrates and proteins with the help of vtamin B1
(3) It helps in efficient working of the nerves heart and muscle
(4) It aids in growth and carbohydrate absorption
(5) Vit B1 is essential for the synthesis of acetylcholine
Dificiency::
Beri beri is a Vitamin B1 deficiency disease it may develop in two forms Dry beri beri and wet beriberi DRY beri beri gives rise to polyneuritis affecting peripheral sensory and motor nerves Muscular weakness is also its characteristic feature
We beriberi has following manifestations::
(1) Oedematous swelling of egs
(2) Loss of appetite and distension of the abdomen
(3) Brain and nerves orogressively pass in a state of irritation paresis and paralysis
(4) Pyruvic and lactic acid accumulate in the blood giving rise to muscle cramps
(5) HEART is weakened and produces breathlessness even on slight exertion
(6) There is retardation of growth
(7) Palpitation
(8) Easy fatigue this is why Vit B1 is called Anti neurotic vitamin which cures all the above deficiency signs of Vitamin B1
BERI BERI
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