Fig. 6

Culture profiles of the pduL2::IPA strain when supplemented with syngas for testing acetone reduction. Acetone (50 mM) was added to the culture medium in the culture vial filled with syngas (CO:H₂ = 1:2), followed by inoculation and starting culture. Products including acetate, acetone, formate, and IPA, in the culture supernatant were measured at each time point. Dry cell weight was calculated according to the OD. Data are presented as the mean with SDs of three biological replicates. Some error bars are smaller than the symbols of data plots