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Mass spectrogram of the metabolite formed in the degradation of 2 mM of dibenzothiophene DBT by Serratia marcescens UCP (1549) at 20°C. Transformation of biphenyl (m/z = 154). (A) - conversion in 90% of biphenyl to 11.3 min for 16 hours of fermentation, (B) - 100% of biphenyl in 24 hours of fermentation, (C) - 100% of biphenyl in 144 hours of fermentation.
