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Presto™ Mini Plasmid Kit

DNA Extraction/Plasmid DNA Purification

This miniprep Plasmid Kit was designed for plasmid DNA purification from 1-7 ml of cultured bacterial cells. For processing larger volumes, the Presto™ Midi Plasmid Kit is also available. Both plasmid kits include TrueBlue Lysis Buffer (an optional color indicator) to prevent common handling errors while ensuring efficient cell lysis, neutralization and maximum plasmid product yield. The Presto™ Mini Plasmid Kit uses a modified alkaline lysis method and RNase treatment to obtain clear cell lysate with minimal genomic DNA/RNA contaminants. In the presence of chaotropic salt, plasmid DNA in the lysate binds to the glass fiber matrix of the plasmid mini spin column. Contaminants are removed with a Wash Buffer (containing ethanol) and the purified plasmid DNA is eluted by a low salt Elution Buffer, TE or water. DNA phenol extraction or alcohol precipitation are not required and the entire procedure can be completed within 15 minutes.

Specifications (Cat. # PD100, PD300)

  • Purify plasmid DNA within 15 minutes!
  • Convenient: TrueBlue Lysis Buffer is an optional color indicator included with the kit to reduce common handling errors, while ensuring efficient cell lysis, neutralization and maximum plasmid product yield so you can feel confident with each and every plasmid prep.
  • Plasmid Size: 1-15 kb
  • High Yield: up to 50 µg of pure plasmid DNA
  • Sample Volume: 1-7 ml of cultured bacterial cells
  • Spin Columns: glass fiber membrane optimized for plasmid DNA purification
  • Elution Volume: 30-100 µl
  • Storage: dry at room temperature (15-25°C)


Restriction Enzyme Digestion, Library Screening, Ligation, PCR, Transformation and Sequencing Reactions

Presto™ Mini Plasmid Kit Functional Test Data

E. coli StrainCell Culture Volume Yield (OD600 = 4.0)
1.5 ml3 ml5 ml7 ml
DH5α13-15 µg27-29 µg36-38 µg40-42 µg
Top 1010-12 µg18-20 µg25-27 µg27-29 µg
BL21 (DE3)7-9 µg13-15 µg17-19 µg20-22 µg

Table 1 .Plasmid DNA was extracted using the Presto™ Mini Plasmid Kit. 10 µl aliquots of a 100 µl eluate of purified super coiled plasmid DNA from 1.5, 3, 5 and 7 ml overnight E. coli DH5α, TOP10 and BL21(DE3) cultures, containing a 3 kb plasmid pBluescript (OD600 = 4 U/ml) were analyzed by spectrophotometer.



  • PD1, PD2, PD3 Buffers
  • TrueBlue Lysis Buffer
  • W1 Buffer
  • Wash Buffer
  • Elution Buffer (10 mM Tris-HCl, pH8.5 at 25°C)
  • RNase A
  • PDH Columns
  • 2 ml Collection Tubes

Quality Control

The quality of the Presto™ Mini Plasmid Kit is tested on a lot-to-lot basis according to Geneaid’s ISO-certified quality management system. Plasmid DNA from a 4 ml overnight E. coli (DH5α) culture, containing plasmid pBluescript (A600 > 2 U/ml) is purified using the Presto™ Mini Plasmid Kit. Following the purification process, a yield of more than 30 μg is obtained and the A260/A280 ratio is between 1.8-2.0. The purified plasmid (1 µg) is used in EcoRI digestion, and analyzed by electrophoresis.

Specifications Presto™ Endotoxin Free Mini Plasmid Kit Presto™ Mini Plasmid Kit High-Speed Plasmid Mini Kit Large Plasmid DNA Extraction Kit Presto™ 96 Well Plasmid Kit
Cat. # PEH100 PDH100
Format Spin Column Spin Column Spin Column Spin Column 96 Well Plate
Binding Capacity 40 µg 50 µg 30 µg 30 µg 35 µg
Culture Input 1-5 ml 1-7 ml 1-5 ml 1-4 ml 1-5 ml
Plasmid Size 1-15 kb 1-15 kb 1-15 kb 10-50 kb 1-15 kb
Typical Yield up to 40 µg up to 50 µg 10-30 µg 10-25 µg 25-35 µg/well
Elution Volume 30-100 µl 30-100 µl 30-100 µl 50-100 µl 100 µl
Operation Time <60 minutes <15 minutes <15 minutes <15 minutes 25 minutes
Product NameRXNS/VOLUMECatalogue Number
Presto™ Endotoxin Free Mini Plasmid Kit100PEH100
Presto™ Mini Plasmid Kit100, 300PDH100/300
High-Speed Plasmid Mini Kit100, 300PD100/300
Large Plasmid DNA Extraction Kit100, 300PDL100/300
Midiprep Spin Column Plasmid Kit25PA025
Presto™ Midi Plasmid Kit25PIF025
Presto™ Midi Plasmid Kit (Endotoxin Free)25PIFE25
Geneaid™ Midi Plasmid Kit25PI025
Geneaid™ Midi Plasmid Kit (Endotoxin Free)25PIE25
Presto™ Plasmid DNA Concentration Kit25, 50, 100PC0250/500/1000
Geneaid™ Maxi Plasmid Kit10, 25PM010/25
Geneaid™ Maxi Plasmid Kit (Endotoxin Free)10, 25PME10/25
Presto™ 96 Well Plasmid Kit4 x 96, 10 x 9696PDC04/10