The Thermal death time values (TDT) were estimated for Dichotomomyces
cejpii, Gilmaniella humicola, Talaromyces avellaneus and Talaromyces b
acillisporus isolated from soil. TDT values were compared with the TDT
values of the known heat-resistant species, Byssochlamys nivea, Neosa
rtorya fischen and Talaromyces flavus. All species studied showed cons
iderable heat resistance. The most resistant species Talaromyces avell
aneus (172 cfu, initial concentration) of the isolates with unknown he
at resistance withstood 90-degrees-C for 10 min. Byssochlamys nivea ap
peared to be the most sensitive species under our experimental conditi
ons.