At LPS, we understand the importance of reliable and affordable microbiological supply solutions for our customers in varied environments, from research laboratories to medical laboratories and beyond. We provide procurement of a wide range of products, including dehydrated and prepared media, both bottled and plated, organisms, and supplies such as inoculating loops and needles.

Please also see our collection of other Life Science products for a complete offering of whatever you may need for your important work.  We're always here if you have questions or need assistance - email or call us!

When ordering media, decide between prepared and dehydrated forms. Prepared plates (15 x 100 mm, plus 15 x 65 mm contact plates for surface monitoring), tubes and bottled broths save preparation time but have shorter shelf lives and usually need refrigeration, so order quantities you can use before the expiration date. Dehydrated media store longer but must be weighed, prepared and sterilized in house. Look for USP-designated media when your testing follows compendial methods, and pair them with quality control organisms such as ATCC-derived strains in DuoPak format. Sterile plastic inoculating loops come in calibrated volumes such as 10 µl.

Microbiology: common questions

What is a bacterial freezing kit?

A bacterial freezing or preservation kit usually contains cryovials prefilled with a cryoprotective broth, often with porous beads. You add a fresh culture, let the organisms attach to the beads, remove the excess liquid and freeze the vial, typically at -70°C or colder. Later, a single bead can be removed to start a culture without thawing the whole vial. Follow the kit maker's instructions for your organism.

What are contact plates used for?

Contact plates are small plates filled so the agar forms a raised, convex surface. They are pressed directly onto flat surfaces such as benches, equipment or gloves to sample microorganisms for environmental monitoring. Media for this use often contain neutralizers, such as lecithin and polysorbate (Tween), to counteract disinfectant residues picked up from the surface.

What are dilution blanks?

Dilution blanks are tubes or bottles prefilled with a measured volume of sterile diluent, such as buffered water or peptone water. They are used for serial dilutions of samples before plating or counting, so each step has an accurate, sterile volume without preparing and sterilizing the diluent in house.

Can prepared media be returned?

Returns are accepted within 30 days by mail, with the customer paying return shipping, but refrigerated or frozen items, sterile items and hazardous items cannot be returned. Most prepared plates and tubes fall into those groups, so check quantities and expiration needs before ordering. Many items ship directly from the manufacturer, so lead times vary by item.

Microbiology

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  1. K.pneumoniae, MBL ATCC BAA1705, KwikStik EA1
    Manufacturer: Hardy Diagnostics
    K.pneumoniae, MBL ATCC BAA1705, KwikStik EA1 (1 per EA )
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    was $189.15 Special Price $186.92
  2. K.pneumoniae, MBL ATCC BAA1705, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    K.pneumoniae, MBL ATCC BAA1705, DuoPak EA1 (1 per EA )
    Learn More
    was $71.04 Special Price $70.20
  3. B. badius, MBL ATCC 14574, LyfoDisk EA1
    Manufacturer: Hardy Diagnostics
    B. badius, MBL ATCC 14574, LyfoDisk EA1 (1 per EA )
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    was $175.58 Special Price $173.51
  4. S.salmonicolor, MBL ATCC MYA-4550, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    S.salmonicolor, MBL ATCC MYA-4550, DuoPak EA1 (1 per EA )
    Learn More
    was $90.03 Special Price $88.97
  5. S. Maltophilia, MBL ATCC 13636, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    S. Maltophilia, MBL ATCC 13636, DuoPak EA1 (1 per EA )
    Learn More
    was $90.03 Special Price $88.97
  6. Campylobacter, MBL ATCC 33559, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    Campylobacter, MBL ATCC 33559, DuoPak EA1 (1 per EA )
    Learn More
    was $102.54 Special Price $101.34
  7. B.bifidum, MBL ATCC 11863, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    B.bifidum, MBL ATCC 11863, DuoPak EA1 (1 per EA )
    Learn More
    was $102.54 Special Price $101.34
  8. C.urealyticum, MBL ATCC 43044, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    C.urealyticum, MBL ATCC 43044, DuoPak EA1 (1 per EA )
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    was $90.03 Special Price $88.97
  9. S.enterica subsp diariz ATCC 29934, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    S.enterica subsp diariz ATCC 29934, DuoPak EA1 (1 per EA )
    Learn More
    was $102.54 Special Price $101.34
  10. M.haemophilum,MBL ATCC 29548, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    M.haemophilum,MBL ATCC 29548, DuoPak EA1 (1 per EA )
    Learn More
    was $102.54 Special Price $101.34
  11. S.enterica sub diarizonae ATCC 12325, MBL, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    S.enterica sub diarizonae ATCC 12325, MBL, DuoPak EA1 (1 per EA )
    Learn More
    was $102.54 Special Price $101.34
  12. E.coli, MBL NCTC 8622, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    E.coli, MBL NCTC 8622, DuoPak EA1 (1 per EA )
    Learn More
    was $74.18 Special Price $73.30
  13. P.pentosaceus,MBL ATCC 33316, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    P.pentosaceus,MBL ATCC 33316, DuoPak EA1 (1 per EA )
    Learn More
    was $102.54 Special Price $101.34
  14. P.aeruginosa,MBL ATCC 13388, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    P.aeruginosa,MBL ATCC 13388, DuoPak EA1 (1 per EA )
    Learn More
    was $102.54 Special Price $101.34
  15. E.coli, MBL NCTC 13351, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    E.coli, MBL NCTC 13351, DuoPak EA1 (1 per EA )
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    was $82.02 Special Price $81.06
  16. S.enterica, MBL NCTC 10252, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    S.enterica, MBL NCTC 10252, DuoPak EA1 (1 per EA )
    Learn More
    was $82.02 Special Price $81.06
  17. B.animalis, MBL ATCC 25527, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    B.animalis, MBL ATCC 25527, DuoPak EA1 (1 per EA )
    Learn More
    was $102.54 Special Price $101.34
  18. E.coli O26:H11, MBL CDC 03-3014, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    E.coli O26:H11, MBL CDC 03-3014, DuoPak EA1 (1 per EA )
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    was $121.49 Special Price $120.06
  19. E.coli O111:H8, MBL CDC 2010C-3114, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    E.coli O111:H8, MBL CDC 2010C-3114, DuoPak EA1 (1 per EA )
    Learn More
    was $121.49 Special Price $120.06
  20. M.tuberculosis, MBL ATCC 25177, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    M.tuberculosis, MBL ATCC 25177, DuoPak EA1 (1 per EA )
    Learn More
    was $102.54 Special Price $101.34
  21. K.pneumoniae, MBL NCTC 13442, Duo Pak EA1
    Manufacturer: Hardy Diagnostics
    K.pneumoniae, MBL NCTC 13442, Duo Pak EA1 (1 per EA )
    Learn More
    was $82.02 Special Price $81.06
  22. L.monocytogenes, MBL ATCC 35152, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    L.monocytogenes, MBL ATCC 35152, DuoPak EA1 (1 per EA )
    Learn More
    was $81.42 Special Price $80.47
  23. Legionella anisa MBL ATCC 35292 EA1
    Manufacturer: Hardy Diagnostics
    Legionella anisa MBL ATCC 35292 EA1 (1 per EA )
    Learn More
    was $102.54 Special Price $101.34
  24. B.subtilis, MBL ATCC 6051, DuoPak EA1
    Manufacturer: Hardy Diagnostics
    B.subtilis, MBL ATCC 6051, DuoPak EA1 (1 per EA )
    Learn More
    was $81.42 Special Price $80.47
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