[Somatomedin-type activity of Biomin H]

In the biopreparation Biomin H, which is prepared from eggs, somatomedin activity was tested. The activity was not substantially affected by thermal processing at 36 degrees C-130 degrees C; the highest concentration of somatomedin activity was at a concentration of 30 mg Biomin H in the reaction mixture. The authors discuss the necessity to analyze the nature of somatomedin activity by detection of selected known growth factor (IGF-I, IGF-II, TGF-beta).