The TIANprep Yeast Plasmid DNA Kit has improved the common alkaline lysis method, which can rapidly extract high-purity plasmid DNA and remove genomic DNA. Plasmid DNA can be conveniently and rapidly absorbed on the spin column, followed by washing and elution. Multiple samples can be processed at the same time without the use of toxic and harmful reagents. This kit is suitable for the plasmid extraction from yeast and E.coli. The plasmid yield is related to factors such as yeast strains, plasmid copy number and culture conditions.