Predictive Microbiology for Monitoring Spoilage of Dairy Products with Time‐Temperature Integrators

BIN FU, PETROS S. TAOUKIS, Ted P Labuza

Research output: Contribution to journalArticlepeer-review

114 Scopus citations

Abstract

Time/temperature integrators (TTI) have a potential for monitoring time‐temperature history of perishable foods, including dairy products. To correlate the end of shelf life of dairy products with different TTI's, kinetic data for growth of a dairy spoilage microorganism was obtained. Both Arrhenius and square root equations were used to model the growth of Pseudomonas fragi. A significant negative history effect was observed for P. fragi growth rate whereas history effect was positive on the lag phase, under certain nonisothermal conditions. A correlation scheme of P. fragi growth was developed with the TTI response. The application of TTI's for dairy products is feasible despite the history effects.

Original languageEnglish (US)
Pages (from-to)1209-1215
Number of pages7
JournalJournal of food science
Volume56
Issue number5
DOIs
StatePublished - Sep 1991

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