[Model experiments on sorption properties of beet-root fiber].

Model experiments provided results of determining sorbate properties of beet-root fiber in respect of copper, plumbum and zinc in diary foods. It was determined that this fiber makes possible the absorbing of the above mentioned heavy metal, which increases the hygienic safety of the studied diary foods.

[Modification of method for determination of medium-molecular peptides and its application in pediatric surgery].

Taking into account clinical significance of determination of medium-molecular peptides' concentration in various surgical diseases and limitation of blood sampling in children, modification of the method for determination of medium-molecular peptides in blood serum is proposed, which requires 0.1 ml of serum and is based on deproteinization of cooled ethanol followed by spectrophotometry of peptide solution at 210 nm. Comparison study of the results of examination by this method and routine one was carried out.