Technological And Biochemical Studies On The Natural Sweetener Stevioside

The improvement of the aqueous extraction by HVED has been shown for the linseeds oil after pressing. three successive treatments weredone (40 KV,300 impulese and 0.5 HZ) and almost all the oil quantity was extracted in less than 40 minutes, wheras in absence of HVED, Kinetics were rather slow. more than 300 minutes were required to extract only half of oil extracted with HVED water extraction (Gros et al. 2004.) the electric discharge treatment with 40 KV (HVED) was found to accelerate the extraction of aqueous solutions of two dry productes (dried leaves of black tea and mint). Solution brix was raised and the extraction kinetics were accelerated by HVED treatment (El-Belghiti,2005)