Data Analyses
The data reported are the average of three measurements.
First-order (linear) regression analysis was performed to show any
relation between the tested variables (independent variables such as
particle size and particle loading rate) and the outcome (dependent
variables such as produced amounts, average production rates and yields
of ethanol, and lactic acid). The R2 value, which
quantifies the dispersion of distribution from the mean, was used as a
measure of the goodness of fit. Calculations and regression analysis
were made in MS Excel.