Revalorization of mushroom by-product (stalks of A. bisporus) by extracting its components is proposed. The extraction kinetics at 25 °C of ergosterol, phenolic compounds and antioxidant activity by mechanical agitation (at 130 rpm) and ultrasound assistance (at 182 and 321 W/L) in 70 and 96% v/v ethanol/water solutions during 30 min were evaluated and satisfactorily modelled, using the Weibull model (mean relative error ≤ 7.
View Article and Find Full Text PDFObjectives: To evaluate the result of retrograde intrarenal surgery (RIRS) assisted by flexible ureterorenoscopy (FURS) and Holmium laser in the treatment of lithiasis within calyceal diverticula as a minimally invasive therapeutic option.
Methods: We retrospectively evaluated 11 cases of symptomatic lithiasis within calyceal diverticula treated between January 2010 and December 2011. We defined treatment success as absence of residual stones and absence/disappearance of symptomatology over the course of follow-up.