*5.4.1 Gas chromatography-flame ionization detector (GC-FID) analysis*

The isolated bacteria strains degradation rate on CAR was analyzed from day 0, day 3, day 6, day 9 and day 12 using GC-FID analysis. From the chromatogram obtained, the degradation rate of six isolated strains could be summarized as shown in **Tables 9**–**14**. **Figures 9**–**14** shows the percentage of degradation after 12 days for six isolated strains.

**Figure 13.**

*The degradation percentage of IM5 strain on CAR after 12 days incubation.*

**Figure 14.** *The degradation percentage of IM6 strain on CAR after 12 days incubation.*
