Product Code TM 400
Yeast Nitrogen Base Agar (Twin Pack) is a modification of Yeast Nitrogen Base formulated by Wickerham and Burton. Yeast Nitrogen Base Agar is used for assessing carbohydrate utilizing ability of yeasts using the carbohydrate disc method.
The original auxanographic technique, described by Beijerinck, employs small amounts of dry carbohydrates placed on the surface of a heavily seeded synthetic agar medium. Growth around the carbohydrate indicates that the sugar is assimilated as a carbon source by the yeast. The pattern of utilized carbohydrates is an auxanogram. Filter paper disc impregnated with carbohydrate and used instead of dry carbohydrate is an alternative technique.
With added carbon source, the medium may also be used for susceptibility testing with antifungal drugs when defined medium is needed
for carbohydrate assimilation test in the characterization and identi?cation of yeasts
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