Therefore, Kd is equal to the slope of the regression line from a
plot of ln [Et/E0] versus t at a particular temperature. The resulting
regression lines had high correlation coefficients (r2 > 0.97), suggesting
first order inactivation kinetics in the temperature range
investigated. The half-life t1/2 and the Dw-values (reduction of 90%)
were calculated based on equation (2), using equations (3) and (4),
respectively: