Assessments of effect of Hydro-Alcoholic extract of Scrophularia striata on removing of parasites from raw vegetables

Scrophularia striata is one of the endemic plants of Iran that used from ancient times until now in Iranian traditional medicine. This study was conducted to evaluate the effects of different concentrations extract of S. striata on removing of parasites from raw vegetables in Ilam province. The studied plants were collected from the mountainous regions of Ilam province in the spring of ۲۰۲۰ and were identified and approved. Samples were dried in the shade, the powder was prepared with the help of an electric grinder. The Hydro-Alcoholic leaf and stem extract were prepared by Soxhlet apparatus. Common fresh vegetables were washed in ۰/۰۱, ۰/۱, ۱ and ۲% concentrations of S. striata extract, and with contact time of ۱۵ minutes. After ۲۴ h, remaining washing solution was centrifuged, then the slides were prepared from sediments and were examined under light microscope. Results show that the maximum parasites removing by S. striata extract was obtained at ۲% concentration. The most removed parasite were Nematode larvae (with ۲۴۹ parasites), Ascaris with ۵۴ parasites and Entamoeba protozoan with ۵۳ parasites. The minimum removed parasites is related to Trichocephalus and Isospora (each with two parasites). The removal rate of the ۲% extract was higher than the other concentrations used. The results of present study showed that the Hydro-Alcoholic extract of S. striata can be considered as a natural detergent and cleanser that has a good disinfectant power of edible fruits and vegetables.

Keywords:

Scrophularia striata , Medicinal Plants , Ilam Province , Soxhlet method , Parasite