The European Food Safety Authority's (EFSA) Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids recently evaluated 11 flavoring substances using the procedure in Commission Regulation (EC) No 1565/2000.
The ingredients included "eight alpha-diketones or their corresponding alcohols or ketals ... and three beta-diketones or their corresponding beta-hydroxyketones," according to EFSA. All 11 substances were found to pose no safety concerns based on their levels of dietary intake.
EFSA noted, "Besides the safety assessment of these flavoring substances, the specifications for the materials of commerce have also been considered. Specifications including complete purity criteria and identity for the materials of commerce have been provided for all candidate substances."