Improved growth medium for Campylobacter species

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Abstract
Campylobacter species were grown in a base containing proteose peptone no. 3, yeast extract, K2HPO4, (NH4)2SO4, NA2SO3, soluble starch, and agar. Concentrations and sources of organic nitrogen and growth factors were critical, and the optimal pH range was 7.0 to 7.5. Cultures tolerated 0.7% NaCl in addition to the salt present in the organic constituents and were sensitive to surface-active agents at concentrations recommended for enrichment of other gram-negative bacteria. Cultures were maintained on the proposed medium for 1 year with transfer every 2 weeks.