PET hydrolysing enzymes catalyse bioplastics precursor synthesis under aqueous conditions
2019
Parisi, Daniele | Riley, Christopher | Srivastava, Abhishek S. | McCue, Hannah V. | Johnson, James R. | Carnell, Andrew J.
Poly(ethylene terephthalate) hydrolase (PETase) was used to catalyse a double transesterification to convert FDCA dimethyl ester to the bioplastics precursor bis-butandiol ester in good yield under aqueous conditions. The presence of high water content was important for high transesterification selectivity. CAL-A and CAL-B lipases showed low activity or extensive hydrolysis. The PETase bioconversion was demonstrated at gram scale and the transesterification products can be selectively extracted for use in polymerisation reactions.
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