BIOLOGICAL EVALUATION of A HEAT TRANSFER SIMULATION FOR STERILIZING LOW-ACID LARGE PARTICULATE FOODS FOR ASEPTIC PACKAGING
- 1 August 1989
- journal article
- research article
- Published by Hindawi Limited in Journal of Food Processing and Preservation
- Vol. 13 (4), 257-274
- https://doi.org/10.1111/j.1745-4549.1989.tb00105.x
Abstract
A biological procedure was devised to evaluate de Ruyter and Brunet's heat transfer computer simulation for sterilizing particulate foods in a swept surface heat exchanger (SSHE). Turkey cubes measuring 12.7 mm were inoculated with spores of Clostridium sporogenes PA3679, using a so-called “knotted string” method. Inoculated cubes were introduced into a viscous starch medium and thermally processed in a SSHE to a fractional survivor endpoint. Processed product was packaged aseptically, incubated and examined for survivors. Biological sterilization values calculated from the inoculated packs support the validity of the simulation. Also, a novel method was devised to measure particle residence times in hold tubes using electro-magnetic induction.This publication has 6 references indexed in Scilit:
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