Clostridium butyricum, С. acitobutyricum, С. pasteurianum, С. felsineum, С. kluyveri, С. falax, С. sartogofornum, С. perfreigens, С. tetani, С. sporogeties, Enbacierium limosum, E. cellulosolveus Butyrivibrio fibrisolvens, Veillonella alcalescens, Megasphera elsdenii, Ruminococcus albus, R. flavefacietis, Sarcina ventriculi, Pertococcus aerogenes, P. anaerobius, Pertostreptococcus anaerobius, Desulfovibrio desulfiricans.