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                                                                    EXHIBIT 23.1



               CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANT




         I consent to the incorporation of my report dated February 4, 2002 on
the financial statements of AspenBio, Inc. as of December 31, 2001 and 2000 and
for the year ended December 31, 2001 and for the period from inception July 24,
2000 to December 31, 2000 and my report dated January 18, 2000 on the financial
statements of Vitro Diagnostics, Inc. for the year ended October 31, 1999, which
is included in this Amendment to Form S-1 dated August 9, 2002 of AspenBio, Inc.
and to the reference to my Firm under the caption "Experts" in the Form S-1.


/s/ Larry O'Donnell
-------------------------------
LARRY O'DONNELL, CPA, P.C.
Aurora, CO

August 9, 2002




