The thermal destruction of vitamin B1

The Thermal Destruction of Vitamin B1 3. THE INFLUENCE OF COPPER ON THE RATE OF DESTRUCTION OF ANEURIN IN BUFFER SOLUTIONS

The first recorded statement concerning the influence of copper on the rate of destruction of aneurin is that of Booth (1943), who claims that aneurin is destroyed more rapidly in the presence of Cu than in its absence. Work in these laboratories on the behaviour of aneurin during the manufacture ofyeast extract which contained significant amounts of Cu suggested that, perhaps, this metal was n...

Clxxiii. a Study of the Destruction of Vitamin B1 in Blood

IN a quantitative study of the excretion of vitamin B1 in human urine [Harris & Leong, 1936], it was observed that, with the subjects studied, the daily urinary output of the vitamin amounted to only about 10% of the daily intake. Later, in a more detailed study on rats [Leong, 1937], evidence was obtained that a certain amount of the ingested vitamin could not be accounted for in the total uri...

Vitamin B1

Vitamin B1 is a watersoluble vitamin. It consists out of a pyrimidineand a thiazol ring, which are synthesized independently and linked afterwards.Vitamin B1 is de novo produced by many plants and microorganisms. Humans and animals have to take it up by nutrition. They are only able to do the phosphorylation reaction of the thiamin molecule. Thiamin is found free and as mono-, diand triphosphat...

Vitamin-B1 Deficiency

The thermal destruction of vitamin B(1): 4. The influence of the concentration of buffer salts on the rate of destruction of aneurin at 100 degrees.