Thursday, July 30, 2015

Vitamins: Water soluble-3: Sources, Functions, Deficiency etc

WATER SOLUBLE VITAMINS

VITAMINS B6 & B7
Vitamins
Vitamin B6
Vitamin B7
Other names
Pyridoxine, or rat antidermatitis factor
Biotin, vitamin H, anti-egg white injury factor, co-enzyme R
Discovered by
Goldberger
W.G. Bateman
Daily requirement
2 mg
150- 300 mg
Sources
Fish, liver, yeast, tomatoes, cereals, leafy vegetables, kidney, egg yolk.
Synthesized by intestinal bacteria.
Liver, yeast, eggs, vegetables, fruits, milk.
Synthesized by intestinal bacteria.
Functions
Co-enzyme for many enzymes.
Accelerates the metabolism.
Tryptophan metabolism.
Transamination of amino acids.
Glycogenolysis.
Erythropoiesis.
Carboxylation and decarboxylation reactions.
Deficiency
Dermatitis.
Paralysis.
Retarded growth.
Nausea.
Convulsion in children
Mental and muscle dysfunction.
Fatigue and nausea.
Growth failure.

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