The effect of air on the conductance response of salmonellas in three selective media was investigated. When assays were carried out aerobically, the time to observe a presumptive positive in all media was reduced and the conductance change was larger than in assays done under microaerophilic conditions. Low (102/ml) numbers of pre-enriched salmonellas were detected only under aerobic conditions.
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I.D. Ogden (1990) studied this question.
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