extremely significantp < 0.0001
The ordinary one-way ANOVA results showed an extremely significant decrease in cell viability after 48 h of incubation in contrast with the cell control ( p < 0.0001, and 0.01 < p < 0.05, α = 0.05), while an LC50 for the ELExt could not be calculated because of a very low cell mortality rate even at higher concentrations [ Figure 8 iii].