• remove Standard Organization: U.S. Pharmacopeia

Yeast and Fungal Preceptrol Cultures

  • Saccharomyces cerevisiae Meyen ex E.C. Hansen (ATCC® 9763)

    ATCC® Number: 9763
    Deposited As Saccharomyces cerevisiae Hansen, teleomorph
    Alternate State: Saccharomyces anamensisWill et Heinrich; Saccharomyces hienipiensis Santa Maria; Saccharomyces steineri var. hara; Saccharomyces batatae Saito; Saccharomyces aceti Santa Maria; Saccharomyces capensis van der Walt et Tscheuschner; Saccharomyces chevalieri Guilliermond; Saccharomyces gaditensis Santa Maria; Saccharomyces cordubensisSanta Maria;Saccharomyces italicus Castelli
    Designation: NRRL Y-567 [CBS 2978, CBS 5900, CCY 21-4-48, CCY 21-4-54, NCTC 10716, NCTC 7239, NCYC 87, Pattee 6, PCI M-50]
    Product Format: freeze-dried

    For-Profit:   $60.00 Non-Profit:   $50.00

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    Comments:
    Invertase activity
    Oligosaccharide transfer in microsomes
    Deoxy-trehalose synthesis
    Type Strain: no
    Biological Safety Level: 1
  • Saccharomyces kudriavzevii Naumov et al. (ATCC® 2601)

    ATCC® Number: 2601
    Deposited As Saccharomyces cerevisiae
    Designation: [2601-U]
    Product Format: freeze-dried

    For-Profit:   $60.00 Non-Profit:   $50.00

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    Comments: No vitamin requirement

    Reference strain for assays of amphotericin B fungizone and nystatin fungicidin designated by FDA. RefU.S. Pharmacopeia General Chapters; <81> Antibiotics-Microbial Assays. Rockville, MD: U.S. Pharmacopeia; USP USP34-NF29, 2011

    The strain used to be classified as Saccharomyces cerevisiae based on traditional taxonomic characterizations, but a recent molecular authentication convincingly identified it as Saccharomyces kudriavzevii, not S. cerevisiae. The taxonomic update of this strain will not affect its application in antifungal drug testing assays and many other usages. RefSuh SO, et al. Update of USP drug testing reference strain ATCC® 2601™. Pharma. Microbiol. Forum Newslett. 19: 4-11, 2013.
    Biological Safety Level: 1
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