To realize an efficient lysis and highest yields, the plant samples are first mechanically disrupted, followed by lysis in an optimized buffer and Proteinase K. Cell debris is removed and samples are filtered and homogenized by centrifugation through a Prefiltration spin column. Conditions are adjusted for optimum DNA binding. RNA can now be removed by RNase digestion. During a brief spin, DNA selectively binds under non chaotropic conditions to the spin filter while contaminants pass through. Remaining contaminants and enzyme inhibitors are removed in an efficient wash step. The final elution step yields high-quality genomic DNA. The purified DNA is ready to use for subsequent downstream applications or can be stored at –20 °C for subsequent use: