Clostridium botulinum Ionizing Radiation D‐Value Determination Using a Micro Food Sample System

Robert A Kreiger, O. P. SNYDER, I. J. PFLUG

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A miniaturized system for rapid and accurate irradiation D‐value determinations was evaluated. The test units consisted of pork, ham or chicken substrates inoculated with a mixed suspension of Clostridium botulinum spores, sealed inside polypropylene cryotubes at vacuum levels of 250, 125 and 50 torr. Samples were irradiated with 60Co gamma rays at −30 ± 10°C up to a dose of 1.8 Mrads. D‐values were in close agreement with historical determination for the substrates and conditions tested. The D‐value estimates encompass a standard error of 0.025 Mrad at p < 0.05. Replicate experiments conducted on different days demonstrated a high degree of reproducibility.

Original languageEnglish (US)
Pages (from-to)141-145
Number of pages5
JournalJournal of food science
Volume48
Issue number1
DOIs
StatePublished - Jan 1983

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