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Bioresources and Bioprocessing
Fig. 3 | Bioresources and Bioprocessing

Fig. 3

From: Bioengineering Comamonas testosteroni CNB-1: a robust whole-cell biocatalyst for efficient PET microplastic degradation

Fig. 3

Enzymatic activity analysis was conducted on recombinant strains derived from CNB-1. A The catalyst activity of the secreted DuraPETase was determined using p-NPB as a substrate. The strains were incubated with MSM medium at 30 °C for 3 days, and 1 mL of the supernatant was collected for incubation with p-NPB at 30 °C for 30 min, and the absorbance at 410 nm was measured. SEM images revealed surface erosion of PET films after 14 days of degradation by CNB-1A (B) and CNB-1B (C), at 30 °C

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