Why doesn’t the BODTrak II give me the same results as the dilution method?
BODTrak II results
The respirometric method yields higher results due to the constant stirring and the headspace above the sample. The stirring increases the contact between microorganisms and food and accelerates the transfer of oxygen from the bottle headspace to the sample. The result is an increase in the respiration rate and oxygen consumption of the microorganisms, which creates higher BOD values.