Uncertainty of Measurement Microbiology | Dr. Priti Amritkar

Microbiological testing is carried out for food and feed samples, to determine the quality and safety of the product. In microbiological analysis the result is obtained by counting individual live organisms which are rarely distributed randomly in a food matrix. It is due to these reasons that, there is an uncontrollable ‘variation without a cause’ that accompanies the counts, which alters the situation for microbial enumerations. Therefore, unlike in chemical analysis, where the uncertainty of the analytical procedure and the uncertainty of the final result of analysis are usually the same, measurement of uncertainty in microbiological analysis requires a different approach.

[@chaoukibelbachir2017]

Nice presentation. Thank you. My question is if we don't subtract matrix and distribution uncertainties from the technical uncertainty of experimental study we will over estimate the expended uncertainty by adding matrix uncertainty and distribution uncertainty of the test sample result. I think we have to use Standard deviation of reproducibility corrected (SRcorr) as shown in annex D of iso 19036 v. 2019. Than you for the sharing of your presentation.

[@madhuraamritkar909]

Excellent!!! 👍🏻👍🏻

[@nestorrolomorales4157]

Thank you, this kind of eplanations with examples is very difficult to find. This is better than many longs and useless courses carried out by private education companies. If anybody has any other source of information thank you for tell me where I can access it.

[@uchitasdongare4406]

in drinking water can you share exell sheet for MPN n for cfu

[@govindarimal3600]

Can you help me interpret uMPN

[@shrivastavaprem9105]

Good

[@rubyjanegicaro2245]

Hi can we have a copy of your excel for formulas??

[@Yadav-bt4yz]

Can u share excel Sheet for Reference

[@roijimuta2226]

Hi Dr Amritkar, would like to ask something can I send you an email? thank you