Sunflower seed protein concentrates and isolates obtention from ethanol oil extraction meals (Technical note) / Obtención de concentrados y aislados proteicos de harinas de semillas de girasol tratadas con alcohol etílico

The objetive of this work was to study and identify the necessary processing step for obtaining good quality sunflowerseed protein concentrate isolate when the oil is extracted with ethanol. This work is part of a research on using ethanol as renewable solvent for sunflower seed oil recovery and possible further processing of the meal. Both 99ºGL and 90ºGL ethanol were employed in the extractions to produce the concentrate. Isolates were obtained by treating the concentrate with NaOH and HCI solutions and final rinsing with acidified water. Both products were light in color and almost free from chlorogenic acid