Vitamin B1 or thiamin molecule comprises substituted pyrimidine and thiazole moieties linked by a methylene bridge.
Vitamin B1 was given the name thiamin because it contains a thiol (sulfur) group and an amine (nitrogen) group.
Thiamin functions as a coenzyme in the metabolism of carbohydrates and branched chain amino acids. Although thiamin, per se, is not an energy-yielding nutrient, its coenzyme form TPP is needed for ATP production.
TPP or thiamin triphosphate functions as a coenzyme, catalyzing reactions that enable the body to use glucose, amino acids and fatty acids for energy.
Absorption of thiamin occurs mainly in the jejunum, at lower concentration as an active, carrier mediated system involving phosphorylation and at higher concentration by passive diffusion.
The classic pathological condition rusting from a gross deficiency of thiamin in humans is beriberi, which is prevalent in Far Eastern populations where unfortified polished rice is staple diet.
Vitamin B1 in human body
The Most Popular Posts
-
Navel oranges are not only delicious but also packed with numerous nutritional benefits that contribute to overall health and well-being. T... -
Retrogradation is another important property of starch. Retrogradation refers to the occurrence where starch reverts or retrogrades to a mor... -
Gelatinization occurs when starch granules are heated in a liquid. It is responsible for the thickening of food systems. The process is an i... -
Resveratrol is a naturally occurring polyphenol found in a range of plants, particularly in the skin of red grapes, blueberries, raspberries... -
Crude fiber is a measure of the quantity of indigestible cellulose, pentosans, lignin, and other components of this type in present foods. ...