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The quantitative lyophilized pellet of a single microorganism strain with a defined mean assay value inside a plastic vial and one separate vial with 1ml rehydration fluid. Adding the reconstitution fluid to the pellet vial it forms a suspension with a defined assay value of 10-100 CFU/0,1ml as mandated by USP and Ph.Eur. for growth promotion tests.


The MicroPelletRT are a cost-effective alternative to labour-intensive dilution/colony count procedures.

After processing these preparations of lyophilized microorganisms as directed you will achieve a quality assurance challenge as required by Ph.Eur./USP to perform growth promotion tests. MicroPelletRT can be traced back to ATCC reference strains and are not more than 4 passages away from the reference strain.


  • Easy To Use: simply unscrew the cap and rehydrate with the provided fluid. As MicroPelletRT are lyophilized and not just dried suspensions like other products currently available, they rehydrate instantly and can be used immediately
  • MicroPelletRT are lyophilized, not just dried suspensions like other products currently available, they rehydrate instantly and can be used immediately
  • Each pellet contains 100-1000 colony forming units (CFU’S), and when rehydrated with 1 ml it produces 10 doses of 10-100 CFU’s/0,1ml. No additional dilution step is necessary!
  • Each MicroPelletRT is packed separately in a vial- this prevents any spoilage of the lyophilized preparation by humidity etc.
  • The necessary quantity of rehydration fluid (1 vial of 1ml per pellet) comes automatically with the pellets
  • MicroPelletsRT can easily be stored at 2-8°C
  • MicroPelletRT does not require dry ice. Shipping costs are reduced




MicroPelletRT

– Quantitative lyophilized microorganism pellet of a single microorganism strain inside a plastic vial

– Separate vial with 1 ml re-hydration fluid


available in 2 packaging configurations:

  • 1 pack – 2 vials with one pellet/vial
  • 1 pack – 10 vials with one pellet/vial

coming soon

coming soon


Instruction for use

Recommended Growth Requirements

Safety Data Sheets

MicroPelletRT Aspergillus brasiliensis WDCM 00053-ATCC® 16404™

MPRTA017

MicroPelletRT Bacillus cereus ATCC® 10876™

MPRTB001

MicroPelletRT Bacillus subtilis subsp. Spizizenii WDCM 00003-ATCC® 6633™

MPRTB007

MicroPelletRT Brevundimonas diminuta ATCC® 19146

MPRTB026

MicroPelletRT Burkholderia cepacia ATCC® 25416

MPRTB027

MicroPelletRT Candida albicans WDCM 00054-ATCC® 10231™

MPRTC005

MicroPelletRT Candida albicans WDCM 00055-ATCC® 2091™

MPRTC002

MicroPelletRT Clostridium perfringens WDCM 00007-ATCC® 13124™

MPRTC026

MicroPelletRT Clostridium sporogenes ATCC® 11437™

MPRTC029

MicroPelletRT Clostridium sporogenes WDCM 00008-ATCC® 19404™

MPRTC030

MicroPelletRT Enterobacter aerogenes WDCM 00175-ATCC ®13048™

MPRTE001

MicroPelletRT Enterococcus faecalis WDCM 00087-ATCC® 29212™

MPRTE015

MicroPelletRT Escherichia coli WDCM 00012,WDCM 00196-ATCC® 8739™

MPRTE032

MicroPelletRT Geobacillus stearothermophilus ATCC® 7953™

MPRTB006

MicroPelletRT Kocuria rhizophila ATCC® 9341™

MPRTK013

MicroPelletRT Lactobacillus fermentum ATCC® 9338™

MPRTL016

MicroPelletRT Listeria monocytogenes ATCC® 19115™

MPRTL013

MicroPelletRT Pseudomonas aeruginosa WDCM 00025-ATCC® 27853™

MPRTP028

MicroPelletRT Pseudomonas aeruginosa WDCM 00026-ATCC® 9027™

MPRTP030

MicroPelletRT Salmonella abony WDCM 00029-NCTC®  6017™

MPRTS100