Preparation of Crystals Containing Protease from Aspergillus oryzæ


A STRAIN of the mould Aspergillus oryzœ (selected from an original culture of Aspergillus flavus-oryzœ 492–2795, kindly supplied by Dr. Charles Thorn), grown for ten days at 21° C. on liquid medium containing sucrose, tartrate, inorganic salts and ammonium salts as the sole source of nitrogen, has been found to produce a highly active protease system in the culture medium.

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  1. 1

    Lennox, F. G., and Ellis, W. J., Biochem. J., 39, 465 (1945).

  2. 2

    Crewther, W. G. (unpublished).

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    Anson, M. L., J. Gen. Physiol., 22, 79 (1938).

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CREWTHER, W., LENNOX, F. Preparation of Crystals Containing Protease from Aspergillus oryzæ. Nature 165, 680 (1950) doi:10.1038/165680a0

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