EXHIBIT 23

            Consent of Independent Registered Public Accounting Firm

We consent to the  incorporation  by  reference in the  Registration  Statements
(Forms S-3, No. 333-15533, 33-58736, 33-60229, 33-78760, 33-72170, 33-68542) and
(Forms  S-8,  No.  33-45348,  33-75466,  33-88826,   333-87153,   333-89308  and
333-123712)  of Enzo Biochem,  Inc. and in the related  Prospectus of our report
dated October 5, 2006, with respect to the consolidated financial statements and
schedule of Enzo Biochem, Inc., Enzo Biochem,  Inc.'s management's assessment of
the  effectiveness  of  internal  control  over  financial  reporting,  and  the
effectiveness of internal control over financial reporting of Enzo Biochem, Inc.
included  in this Annual  Report  (Form 10-K) for the fiscal year ended July 31,
2006.



/s/ Ernst & Young LLP
Melville, New York
October 13, 2006