Figure 9. O/W emulsion with 1% blend 1

When evaluating the results from the o/w emulsion, blend 1 at 1% was sufficient to protect the formulation against contamination, inactivating P. aeruginosa, S. aureus, C. albicans in 48 hr, and E. coli (2.4 x 103) and A. brasiliensis (1.0 x 104) in 7 days without chelating agents (see Figure 9).