[Study of the fractional makeup of diagnostic nutrient media for isolating Vibrio cholerae].

A study was made of the fractional composition of peptones used for preparation of solid nutrient media. It was shown that the best growth of the vibrio on these media was obtained with the use of highly split peptones. Examination of fractional composition of peptone by gel-filtration and fractionation with various precipitants is recommended for rational working out of nutrient media for cultivation of cholera vibrio.