Next, centrifuging filtration removes the crystals of BaZnGa from the liquid BaZn. First isolated as a crystal in 1926 by Sumner, using acetone solvation and centrifuging. As in a sugar mill, the sugar crystals are separated from the molasses by centrifuging. The normal protein is not sedimentable; meaning that it cannot be separated by centrifuging techniques. Traditional palynological preparations involve high-energy steps such as centrifuging that destroy large and fragile fossils. This is typically done by centrifuging the blood. These mechanisms include slumping, cataracting and centrifuging. Centrifuging then separates the sugar from the remaining liquid (molasses).