ADSORPTION OF VITAMIN B (B1) BY PLANT TISSUE

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 Association of Vitamin a with Greenness in Plant Tissue

Since previous experiments (1) showed that the vitamin A content of head and leaf lettuce varied more or less directly with the greenness of the plant tissue, investigations in which asparagus was used as the source of this vitamin were undertaken. It was thought that certain questions concerning the vitamin properties of asparagus, which arise from the fact that it is offered for consumption i...

Intestinal Flora and Vitamin B1

Kinetic Fluorescence Determination of Vitamin B1

This technical note describes kinetic fluorescence as an analytical technique to quantify non-fluorescent species. The technique is applied to the determination of thiamine (vitamin B1) in solution. Fluorescence intensity is monitored as thiamine converts to fluorescent thiochrome, and a relationship is established between the rate of increase of intensity and the concentration of thiamine. The...