Abstract
The aim of the current research is to evaluate the antiparasite effects of compounds isolated from marine ascidian tunicates on Trichomonas vaginalis. Ascidian tunicates after collection were cut into small pieces, freeze-dried, and powdered. The resulting material was subjected to extraction in double-distilled water, ethanol, n-hexane, and dichloromethane. To fractionate the extracts and identify the most bioactive compound, silica gel column chromatography and GC-M/S analysis were used. Fraction 18 of silica gel column chromatography of ethanol extract was the most effective against T. vaginalis. The respective IC50, CC50, and SI values for fraction 18 were 28.62 μg/mL, ˃800 μg/mL, and ˃27.95. GC-M/S analysis of this fraction identified a major phenolic compound (2, 4-bis (1, 1-dimethyl ethyl), whose toxicity against vero cells was only 10.15%. The ethanolic fraction containing phenol-2,4-bis (1,1-dimethylethyl), which has a potent lethality effect on T. vaginalis, may be considered as an antiparasite drug candidate.
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