Figure 3From: Spermicidal and anti-Trichomonas vaginalis activity of Brazilian Sapindus saponaria Sperm imagens of supravital staining containing eosin – nigrosin (1:2). In the absence of water-ethanol (WE) and butanolic (BE) extracts, and saponins (SP) of Sapindus saponaria, the spermatozoa showed negative red staining, indicating live (A). At MEC for WE, BE and SP, 100% of spermatozoa showed positive red staining with eosin, indicating death (B). [magnification, x1000].Back to article page