What is the formula for getting the biodegradation index of certain bacterial isolates regarding the biodegradation of polyethylene?

10 June 2016 0 5K Report

We are working with several bacterial isolates and we have screened them for biodegradation ability. All isolates were screened in triplicates and the zones if diameters of inhibition measured,. What we would like to know is the formula we can use for this

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