A1321 - Acetolactate decarboxylase from Bacillus licheniformis (gene donor: Brevibacillus brevis) for use as a processing aid

On 28 October 2026, the FSANZ Board approved changes to the Australia New Zealand Food Standards Code to permit the use of the enzyme acetolactate decarboxylase as a processing aid, to reduce the formation of diacetyl during yeast fermentation in the manufacture of beer, wine and other yeast fermented beverages.

Consultation and assessment

FSANZ released the public call for submissions in July 2026. Feedback from this consultation, along with our scientific assessment, informed our final decision.

Approval

• A1321 Approval report (478 KB)

Call for submission

• A1321 Call for submissions (510 KB)
• A1321 Supporting document (373 KB)
• A1321 Application (834 KB)

The call for submissions closed on 25 August 2026. Submissions from the public consultation have been published on the A1321 Consultation Hub page.