Quality Assurance

The Master Supplements Promise

Master Supplements Inc. is dedicated to full transparency and raising the standard on digestive health.  We rely on ingredients that are backed with scientific research, clinical studies and years of efficacy.  We believe there is reassurance in transparency and have been posting online test results for over 12 years.  Please enter the lot # from any of our fine products and see the quality assurance for yourself!  

Test Results for Lot #11095A

Product:
Theralac
Lot:
11095A
Potency:
Passed
Purity:
Passed
Activity:
Passed

Product
Theralac
Report Date
11/7/2015
Lab
Minnesota Valley Testing Laboratories, Inc.
Report Name
Microbial Purity
Lot Number
11095A
Lab Number
15-M189357; 15-M189358
DescriptionResultReference
Escherichia coli USPNegativeUSP 38 NF 33
Weight for Escherichia coli USP10grams
Staphylococci, USPNegativeUSP 38 NF 33
Weight for Staphlococci USP10grams
Salmonella, BAM MethodNegativeBAM Ch. 5
Weight for Salm. BAM Method25grams
Mold Count (BAM 8th Ed.)<10CFU/gram
Yeast Count (BAM 8th Ed.)<10CFU/gram
Tests for Microbial Purity

Each production lot of Theralac® is sent to Minnesota Valley Testing Laboratories, Inc. in New Ulm, Minnesota for a microbial purity profile. The following tests are reported:

  • E. coli USP
  • Staphlococcus -- Coagulase Positive Confirmation
  • Total Mold Count
  • Total Yeast Count
  • Salmonella, BAM Method

Here are some tips for reading the purity analysis:

  • Each capsule of Theralac is approximately 450 mg or 1/2 gram.
  • The weight of the sample to test for E coli (for example) is 10 grams or 20 capsules.
  • A result showing negative means that in 20 capsules, no E. coli has been detected.
  • Other results may show <1 per gram (2 capsules).


Product
Theralac
Report Date
12/7/2015
Lab
Minnesota Valley Testing Laboratories, Inc.
Report Name
Probiotic Plate Counts
Lot Number
11095A
Lab Number
15-M1899356
DescriptionResultReference
Lactic Acid Bacteria93,000,000,000CFU/gram
Lactic Acid Bacteria Duplicate95,000,000,000CFU/gram
Lactic Acid Bacteria Triplicate120,000,000,000CFU/gram
Average Count per capsule42,000,000,000CFU/capsule

CFU Plate Count Procedure

The procedures below demonstrate how we at Master Supplements, Inc. calculate the Colony Forming Units for Theralac®.

  1. Aseptically empty 5 Theralac® capsules into a sterile container, recording the weight from each capsule. Mix.
  2. Weigh out 1.0 gram of the mixed sample into a sterile stomacher bag.
  3. Aseptically add 99.0 mls of sterile, room temperature MRS broth (DIFCO) to the powder to make a 1:100 dilution.
  4. Stomach the sample for 5 minutes at high speed.
  5. Hold the sample for 30 minutes.
  6. Stomach the sample for 5 minutes at high speed.
  7. Serial dilutions are made in 0.1% peptone dilution blanks. Add 1.0 ml of the above dilution to 99.0 mls of diluent. Shake the dilution 100 times. This is the 10-4 dilution. Repeat the dilution and mixing step until the desired dilution factors are reached.
  8. For this product, plating the 10-8, 10-9, and 10-10 dilutions should cover the countable range. Pour plates in triplicate for each dilution using DIFCO MRS agar with 1.0 ml of sterile 5% cysteine-HCL solution added to each 100 mls of media.**
  9. Incubate plates at 37° C under anaerobic conditions for 72 hours. **
  10. Count the colonies on each plate. Average the counts within a dilution. This gives the CFU/gram.
  11. Calculate the Colony Forming Units (CFU's) per capsule by multiplying the average count per dilution by the average weight per capsule from step #1.


Product
Theralac
Report Date
12/7/2015
Lab
Minnesota Valley Testing Laboratories, Inc.
Report Name
Activity Analysis: Reported as % Lactic Acid
Lot Number
11095A
Lab Number
15-M1899356
DescriptionResultReference
Time 0 hours pH = 6.43 % Lactic Acid = 0.054%
Time 4 hours pH = 5.48% Lactic Acid = 0.252%
Time 6 hours pH = 4.61% Lactic Acid = 0.612%
Time 8 hours pH = 4.18% Lactic Acid = 1.00%
Time 12 hours pH = 3.80% Lactic Acid = 1.54%
Reporting Procedure

The Lactobacillus strains are reported as “Total Lactobacillus” and the Bifidobacterium strains as “Total Bifidobacterium.” These counts are reported in colony forming units (CFU)/gram on MRS agar (incubated at 37C for 72 hours). The “Total Lactobacillus” count is obtained by incubating the plates under aerobic conditions and counting all colonies; the “Total Bifidobacterium” count is obtained by incubating the plates anaerobically and then subtracting the Lactobacillus count from the total anaerobic count. This results in an approximation of the ratio of Lactobacilli to Bifidobacteria but is quite accurate with respect to the total probiotic count (Lactobacillus + Bifidobacteria).