The recovery of whey proteins by the use of waste sulfite liquor.

After years of research, whey, a by-product of cheese and casein manufacture, is still, to a large extent, a waste material in Canada. Whey has approximately the following composition: fat .3%, protein .8%, lactose 5.1%, ash .6%, and water 93%. It may be seen that the valuable components of whey constitute a relatively minor portion of the total material. Due to this fact, transportation of whey is a costly item and with cheese factories widely dispersed throughout the country, the accumulation of the liquid at one centre is an expensive proposition.[...