Figure 4: (a) Identification of 2-hexanone degradation intermediates in the
resting cell study, carried out by taking 2-hexanone-induced resting cells of
strain MB-P1. The cell protein concentration was 0.5 mg ml-1. ( ), 2-hexanone;
( ), butyl acetate; ( ), butyl alcohol. (b) Degradation kinetics of 2-hexanone,
butyl acetate, and butyl alcohol by 2-hexanone-induced and un-induced
resting cells of Rhodococcus sp. strain MB-P1. ( ), 2-hexanone by induced
cells; ( ), butyl acetate by induced cells; ( ),butyl alcohol by induced cells;
( ), 2-hexanone by un-induced cells; ( ), butyl acetate by un-induced cells;
( ), butyl alcohol by un-induced cells; ( ), 2-hexanone in abiotic control.
Values are presented as arithmetic mean of data obtained from experiments
carried out in triplicate; error bars represent standard deviation. |