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You are here:Home » Culture Media » Media-Yeast » Yeast Nitrogen Base (YNB) w/AA & w/AS, Vitamin Free, w/o Dextrose (Powder)

Yeast Nitrogen Base (YNB) w/AA & w/AS, Vitamin Free, w/o Dextrose (Powder)


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Yeast Nitrogen Base (YNB) media have been prepared according the formulae of Wickerham (1943-51) and Burkholder (1943). Their research on the nutritional requirements of yeast strains resulted in the formulation of YNB. YNB is a well defined composition of salts, vitamins, amino acids and a nitrogen source for a vigorous growth of Sacharomyces cerevisiae.
Y2035-05 is based upon the formulation of YNB except that all vitamins are omitted. The medium is used to test the requirement of essential vitamins.
Catalog #Y2035-05
AppearanceWhite to off-white, homogeneous, free-flowing powder
SolubilityColorless to pale yellow, clear, complete
ApplicationsFor carbon assimilation tests in the characterization and identification of yeasts.
NoteThe addition of a carbon source like glucose, galactose or raffinose is required.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Alternate namesWickerham formula with amino acids & with ammonium sulfate, w/o vitamins, dextrose

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