Application of High-Voltage Electrical Discharges for the Aqueous Extraction from Oilseeds and Other Plants

Effect of pulsed electric fields and high voltage electrical discharges on polyphenol and protein extraction from sesame cake

“…Nevertheless, studies showed the absence of effect of this pre-treatment on some proteins profile. The quality of proteins from soy and BSA solutions has been previously evaluated using HPLC by Vishkvaztzev (1998 apud Grémy- Gros et al, 2008) and Gros (2005apud Grémy-Gros et al, 2008, respectively. Fig.…”

“…Only a small number of works have been performed using oilseeds (Boussetta, Turk, et al, 2013;Grémy-Gros, Lanoisellé, & Vorobiev, 2008;Gros et al, 2003) and, to the best of our knowledge, no work has been performed using these technologies on sesame seed or cake. The goal of this study was to evaluate the effects of different variables in order to enhance extraction of polyphenols, lignans and proteins from sesame cake through the application of PEF and HVED.…”

Enhanced Extraction from Solid Foods and Biosuspensions by Pulsed Electrical Energy

“…Approximately 26 % of oil remained in the residue after 1640 pulses. The process was then optimized by variation of the number of pulses, pH, water/press-cake ratio and temperature [35]. The HVED treatment also permitted enhancement of mucilage extraction from the whole linseed [42].…”

“…Figure 5b presents the scheme of electro-hydraulic disintegration process that can include high amplitude pressure shock waves, cavitation of bubbles and creation of liquid turbulence. In a case of biological solid particles, the cell structure can be damaged by HVED, which accelerates extraction of solutes [35].…”

“…The application of HVED can enhance the aqueous extraction of oil from oilseeds [35,42]. Linseeds were crushed and pressed with hydraulic press, and then the resulting press-cake was dispersed in demineralized water at ambient temperature.…”