Miniprep with bacteria cultures containing 271, 291, 181 and 30

Addition of 200 μL Resuspension solution to culture pellet, vortex, addition of 200 μL Lysis solution
After ca. 5 min addition of 350 μL Neutralization solution, centrifuge samples for 10 min at 4000 rpm
Preparation of columns: addition of 500 μL Preparation solution, centrifugation for 1 min at 12 000 rcf, discard flow-through
Give supernatant of centrifuged samples onto columns, spin for 1 min at 12 000 rcf, discard flow-through
Addition of 500 μL Optional Wash Solution, spin for 1 min at 12 000 rcf, discard flow-through
Addition of 750 μL Wash Solution, spin for 1 min at 12 000 rcf, discard flow-through
Dry columns by centrifuging them for 2 min at 12 000 rcf, subsequently place columns in new collection tubes
Elute DNA with 100 μL Elution solution
According to Sigma-Aldrich Plasmid Miniprep Kit protocol