Purpose: To evaluate the correlation between sun protection factor (SPF) and content of phenol flavonoid antioxidant activity.
 Methods: Different parts 9 medicinal plants were extracted with methanol using three extraction methods (percolation, Soxhlet ultrasonically assisted extraction) to obtain 42 crude extracts. Their contents, activities determined Folin-Ciocalteu reagent, aluminum c...

Temperature increases, resulting from exposure to 1 MHz ultrasound, were measured in in situ and in exteriorized mouse ovaries. It is concluded that temperature increases from exposure to 10 W/cm2 and less are probably not significant for producing ovarian tissue damage, but that 25 W/cm2 exposures, and greater, are of such magnitude that damaging thermal levels ensue. The significance of blood...