title: [Microbiological assay of pantothenic acid in rat liver using Tetrahymena].
abstract: Microbiological Assay of Pantothenic Acid in Rat Liver using Tetrahymena. The quantitative determination of total pantothenic acid in rat liver using Tetrahymena was carried out in the same way as a microbiological assay. The strain selected was Tetrahymena thermophila grown on rat liver. Inoculum was obtained from a commercial medium. The assay medium consisted of a dry powder to be rehydrated and heated to boiling, and then adjusted to pH 7. Liver pantothenic acid was extracted by autolysis. Tetrahymena use made one accustomed to a biological reagent easy to manipulate but with complex nutritional requirements. Consequently the organism should be more extensively used for nutritional or toxicological studies.
mesh_terms: D000818:Animals; D001681:Biological Assay / Q000379:methods*; D003470:Culture Media; D008099:Liver / Q000032:analysis*; D010205:Pantothenic Acid / Q000032:analysis*; D051381:Rats; D013769:Tetrahymena pyriformis / Q000378:metabolism*
chemical_list: D003470:Culture Media; D010205:Pantothenic Acid
vernacular_title: Dosage microbiologique de l'acide pantothénique dans le foie du rat avec Tetrahymena.