Table 2.

Minimum inhibitory concentration (MIC) values of APs measured using bacterial and microbial organisms (Lucchini et al. 1990, Simpson and Wuthiekanun 2000, Meyer et al. 2007, Rowe et al. 2009, Abd-Elsalam et al. 2011).

Preservative and Typical Use Concentration	Typical Use Concentration [μg/ml]	Organism Tested	MIC [μg/ml]
Benzyl Alcohol, 1% vol/vol	10400	Aspergillus niger Candida albicans Escherichia coli Pseudomonas aeruginosa Staphylococcus aureus	5000 2500 2000 2000 25
m-Cresol, 0.3% vol/vol	3090	Aspergillus niger Bacillus subtilis Burkholderia pseudomallei Candida albicans Pseudomonas aeruginosa Staphylococcus aureus	2000 1000 125 2500 1000 1000
Phenol, 0.5% vol/vol	5350	Aspergillus niger Bacillus aerogenes Enterococcus faecium Escherichia coli Pseudomonas aeruginosa Staphylococcus aureus	311 697 3600 2500 1800 1800
Phenoxyethanol, 1% vol/vol	11000	Aspergillus niger Candida albicans Escherichia coli Pseudomonas aeruginosa Staphylococcus aureus	3300 5400 3600 3200 8500