The effects of pulsed electric energy (PEE) on sucrose nucleation in supersaturated aqueous solutions are studied. The supersaturation degree (S = 1.32) and temperature (T = 25 degrees C) were fixed. Pulsed electric field (PEF) treatment without discharge was performed in the chamber with plane-to-plane electrodes geometry using exponential pulses and electric field strength of E= 20-80 kV/cm. High voltage electrical discharge (HVED) treatment was applied in the chamber with rod-to-plane electrodes geometry at E = 20-80 kV/cm. Different number of PEE pulSes was applied, n = 1-20. An insignificant reduction of the induction period of nucleation was observed for the PEF. treated sample (n = 10), t(ind) approximate to 100 min. However, after the HVED treatment (n = 10) the induction period was only t(ind) approximate to 55 min. For the HVED assisted nucleation, the time of effective crystallization decreased and a maximum rate of crystallization increased with increasing of E and n. The obtained data evidence promising perspectives for enhancing sucrose crystallization by the HVED treatment. (C) 2016 Elsevier Ltd. All rights reserved.