Dry-heat inactivation of Bacillus subtilis spores by means of infra-red heating.
An experumental equipment for dry-heat inactivation of bacterial spores in an open system using Infrared (IR) radiation for energy transfer was deveoped. The dry-heat-inactivation kinetics for Bacillus subtilis ATCC 6633 spores were studied in the temperature range of 120-180 C. The z value (z = 23C) was constant in the temperature range investigated. The advantages offered by using IR radiation in sterilization systems are pointed out.
D001412:Bacillus subtilis / Q000502:physiology* / Q000528:radiation effects; D006358:Hot Temperature; D006813:Humidity; D007259:Infrared Rays; D013171:Spores, Bacterial / Q000502:physiology / Q000528:radiation effects