![]() Heat is the main tool in evaporation, and the process occurs more readily at high temperature and low pressures. Heat is added to the solution and part of the solvent in converted into vapor. Water vapor is used as the auxiliary phase when concentrating non- volatile components, such as proteins and sugars. In order to concentrate a product by water removal, an auxiliary phase is used which allows for easy transport of the solvent (water) rather than the solute. ![]() It is also relatively simple to use and understand since it has been widely used on a large scale. Evaporation can be distinguished from some other drying methods in that the final product of evaporation is a concentrated liquid, not a solid. ![]() Water can be removed from solutions in ways other than evaporation, including membrane processes, liquid-liquid extractions, crystallization, and precipitation. ![]()
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