3 replies to this topic

[jdeangelis2898]

Hello all,

 

I am wondering if anyone knows where I can find guidelines on acceptable levels of total Coliform when E. coli is negative. I cannot find any direct information, only suggested levels.

 

Thank you!

[FirstQualityConsulting]

I am not as familiar with the FDA requirements but I was able to locate this FDA document from 2013:

 

 

 

 

chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.fda.gov....o.-2013-010.pdf

[Charles.C]

I am not as familiar with the FDA requirements but I was able to locate this FDA document from 2013:

 

 

 

 

chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.fda.gov....o.-2013-010.pdf

 

 

I am not as familiar with the FDA requirements but I was able to locate this FDA document from 2013:

 

 

 

 

chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.fda.gov....o.-2013-010.pdf

Hi FQC,

 

Thks for input but do note this is FDA Philippines.

[Tony-C]

Hi jdeangelis2898,

 

Have a look at International Microbiological Criteria for Dairy Products as criteria may vary from country to country.

https://www.ncbi.nlm...ooks/NBK221563/

 

European Commission Overview of Microbiological Criteria for Dairy Products

Butter (Directive 92/46/EEC)

Microorganisms Limit N c m M

L. monocytogenes       Absence in 1 g 5 0

Salmonella      Absence in 1 g 5 0

Coliforms, guideline   5 2       0 cfu/g 10 cfu/g

 

Australian Microbiological Criteria for Dairy Products

Microorganisms Limit N c m M

Butter made from unpasteurised milk and/or unpasteurised milk products

Campylobacter/25 g   5          0          0         

Coagulase-positive staphylococci/g   5          1          10        10²

Coliforms/g     5          1          10        10²

Escherichia coli/g       5          1          3          9

Listeria monocytogenes/25 g 5          0          0         

Salmonella/25 g         5          0          0

Standard plate count/g          5          0          5 × 10⁵

 

n = number of samples taken, c = maximum number of samples out of n that may exceed the value set for m, m = analytical value that differentiates good quality from marginally acceptable quality, M = analytical value that differentiates marginally acceptable quality from unacceptable quality.

 

Less than 10/g would be the safer limit to set.

 

Kind regards,

 

Tony