Attached files
Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the use in Amendment No. 1 to the Registration Statement (No. 333-174583) on Form S-1
of Myriant Corporation and Subsidiaries of our report dated May 27, 2011, relating to our audits of
the consolidated financial statements, appearing in the Prospectus, which is part of this
Registration Statement.
We also consent to the reference to our firm under the caption Experts and Selected Financial
Data in such Prospectus.
/s/ McGladrey & Pullen, LLP
Boston, Massachusetts
June 27, 2011
June 27, 2011