Protocols

Glucose Assay

Waste Conditioned Media (WCM)

We took 6g SRF (Solid Recovered Fuel) and to this added 300 mL LB. In addition to this we prepared 300 mL LB. Post-autoclave, the SRF LB was sterile filtrated into 50 mL falcons, which we will now call Waste Conditioned Media (WCM). To both the LB and WCM, 150 µl of chloramphenicol was added. 100 mL WCM was added to 3 pre-sterilised flasks, this was repeated for LB.

1mL stress response transformed (BBa_K639003) MG1655 grown overnight was added to each of the flasks. This was placed on a shaking incubator at 37°C. T=0 was taken after an hour for the bacteria to normalise to their environment. After this time points were taken every 6 or 12h.

Serial Dilution
Preparation of Poly DEGA plates.

In addition to LB, place 0.5% poly DEGA in 20 mM Tris-HCl at pH 8.0 into the solution. In a 300 mL solution this translates to 1.5 mL poly DEGA. As poly DEGA is very viscous, before addition, ensure LB agar is kept at 70°C. We then used a magnetic stirrer to ensure that the poly DEGA was thoroughly mixed.