Why doesn’t the BODTrak II give me the same results as the dilution method?

Document ID

Document ID TE3287

Published Date

Published Date 27/05/2017
Question
Why doesn’t the BODTrak II give me the same results as the dilution method?
Summary
BODTrak II results
Answer
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.