Aim | Samples characteristics | Sample origin | Schedule of DNA extraction |
---|---|---|---|
Comparing the extracted DNA concentration in fresh and frozen samples | 4 types of samples named A, B, C and D | Sludge from anaerobic digestion of WWTP | For each sample: DNA extraction from fresh sample and DNA extraction from 10-days frozen sample |
Verifying the preservation of the extracted DNA concentration in frozen samples | 2 samples, named E and F | Sludge from anaerobic digestion of OFMSW | Repeated DNA extractions from aliquots of the same sample after different storage periods |