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Quality Control Organisms/Growth Promotion


Growth Promotion Test Suspensions provide a quality control challenge to each batch or lot of medium, ensuring its growth promoting qualities, whether it is prepared from basic ingredients or purchased commercially prepared. Simply inoculate each batch or lot of medium and incubate under the appropriate growth conditions.

NAMSA Growth Promotion Test Suspensions are ready-to-use microbial suspensions that meet the requirements for media performance testing. All suspensions comply with the requirement for a population of <100 colony forming units (CFU) and are guaranteed to be within five passages of the stock culture. All Growth Promotion Test Suspensions are provided as pure cultures in 2.5 ml or 10 ml volumes containing 25 or 100 doses (0.1ml each).

NAMSA strives to maintain available inventory of the outlined product codes. Please inquire to confirm availability and/or lead time. The 25 dose or 2.5 mL volume configurations may be substituted for the 10 mL volumes and vice versa. Population levels other than <100 CFU's/0.1 mL are available. Please inquire for pricing and lead time.

NAMSA Code Description Shelf Life Volume
GP-01 Bacillus subtilis 14 months 10mL
GP-02 Clostridium sporogenes 14 months 10mL
GP-03 Candida albicans 12 weeks 10mL
GP-04 Aspergillus niger 7 months 10mL
GP-05 Kocuria rhizophila 16 weeks 10mL
GP-06 Geobacillus stearothermophilus 24 months 10mL
GP-07 Pseudomonas aeruginosa 8 weeks 10mL
GP-08 Staphylococcus aureus 8 weeks 10mL
GP-10 Bacillus atrophaeus 18 months 10mL
GP25-01 Bacillus subtilis 14 months 2.5mL
GP25-02 Clostridium sporogenes 14 months 2.5mL
GP25-03 Candida albicans 12 weeks 2.5mL
GP25-04 Aspergillus niger 7 months 2.5mL
GP25-07 Pseudomonas aeruginosa 8 weeks 2.5mL
GP25-08 Staphylococcus aureus 8 weeks 2.5mL
GP25-09 Escherichia coli 12 weeks 2.5mL
GP25-11 Salmonella enterica 12 weeks 2.5mL