Microbial growth response to water sorption preparation

K. M. ACOTT, Ted P Labuza

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Intermediate moisture food systems were prepared by both an adsorption and desorption method to similar aws. Hysteresis occurred above an aw of 0.86. Four organisms, Candida cypolytica, Pseudomonas fragi, Staphylococcus aureus and Aspergillus niger, when inoculated in a pork system, showed more rapid growth in systems prepared by a desorption process than by an adsorption process at the same aw. In a solid chicken cube system, the same effect was found but the difference was less between the adsorption and the desorption systems. These results indicate that the method of addition of water to a food system as well as the aw is important in determining the response to growth.

Original languageEnglish (US)
Pages (from-to)603-611
Number of pages9
JournalInternational Journal of Food Science & Technology
Volume10
Issue number6
DOIs
StatePublished - Dec 1975

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