Figure 3.

Effect of Lemon Juice, Lime Juice, Vinegar, Nonoxynol-9, or Triton X-100 Treatments on Viability of Cervico-vaginal Cell Lines. Percent cell viability (compared to untreated control) after treatment with (a) 2, 6.3, or 20% lemon or lime (pH neutral or natural) juices; (b) 5, 16, or 50% vinegar (pH neutral or natural); (c) 0.001, 0.01, or 0.1% Triton X-100, and (d) 1, 10, or 100 μg/mL nonoxynol-9 was measured for ECT1 (clear squares, n = 3), END1 (grey circles, n = 3), and VK2 (black triangles, n = 3) cell lines. Each data point represents the average of 3 replicates as described in the methods. The concentration of juice or vinegar is expressed as percent (%) solution (v/v).