The Weak-Acid Preservative Sorbic Acid Is Decarboxylated and Detoxified by a Phenylacrylic Acid Decarboxylase, PadA1, in the Spoilage Mold Aspergillus niger
Andrew Plumridge, Malcolm Stratford, Kenneth C. Lowe, and David B. Archer
Applied and Environmental Microbiology, January 2008, p. 550-552, Vol. 74, No. 2
Resistance to sorbic and cinnamic acids is mediated by a phenylacrylic acid decarboxylase (PadA1) in Aspergillus niger. A. niger padA1 mutants are unable to decarboxylate sorbic and cinnamic acids, and the MIC of sorbic acid required to inhibit spore germination was reduced by 50% in padA1 mutants.
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