Folacyna (vitamin M)- is a common name for folic acid and compounds of derivatives of pteroiloglutamic acid, showing similar biological activity as folic acid. Folacin is a component of enzymes M,in. important for the transformation of some amino acids (Seyns in glycine, Histidine in glutamic acid, homocysteine in methionine) and for the synthesis of Purin and nucleic acids. In the reactions of nucleotide synthesis, it is necessary to cooperate vitamin B12. Folacin or vitamin B12 deficiencies lead to anemia.
Folacin is common in plant products, and in larger quantities in green deciduous vegetables (where does its name come from), egg yolk, cereal products, yeast. The presence of ascorbic acid protects folacin from destruction. Folacyna, like most vitamins of group B, It also belongs to the photosensitive substances. In vegetables it occurs mainly in a bound form, which is only partially used by the system. This fact was included in the regulation of the demand for folacin, It is expected to adults 0,4 mg per day.