Abstract
ABSTRACTInhibitory effects of sodium chloride (NaCl), potassium chloride (KCl), and magnesium chloride (MgCl2) on C. botulinum inoculated turkey frankfurter emulsions were determined. Ionic strengths (I.S.) of 0.42, 0.55, and 0.68 were compared (equivalent to 2.5%, 3.25%, and 4.0% NaCl). Sodium nitrite levels were constant at 150 ppm. Inoculated emulsions (103 spores/g) were incubated and maintained at 27°C. In‐creasing NaCl from I.S. 0.42 to 0.68 delayed toxin production from 4 days to at least 40 days. KCl was almost as effective as NaCl at I.S. 0.42, but inferior at higher levels. MgCl2 did not demonstrate any inhibitory effect. Fifty percent substitution of 2.5% NaCl with KCl or MgCl2 generally reduced time for toxin production to occur.
Published Version
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