Fig. 7.

Comparing the effect of adipic acid and pH on the relative µ_max for all the microorganisms included in this study. Data points are estimated concentration of adipic acid required to reduce µ_max by 25, 50 and 75% for bacteria at pH 7 (a), yeasts, A. niger and bacteria at pH 6 (b), and yeasts and A. niger at pH 5 (c). The axes on the radar plots are logarithmic base 10. C. viswanathii is not included since a 25% reduction in µ_max was not observed at any adipic acid concentration at any pH tested. The values given are obtained from five to ten replicates