Weak-acid
preservative resistance, sorbic acid, benzoic acid and acetic acid, was measured in YEPD
pH 4.0 at 103 cells/ml and incubated at 25 °C for 2 weeks at pH 4.0. Numbers provided
in the columns headed by sorbic, benzoic and acetic are the lowest concentration of
weak acids (mM) to completely inhibit growth.