Abstract
The effect of various additives—nonionic surfactants, sodium caprylate, glycerides, sugar, and salts of sodium, calcium, and aluminum—on the separation of albumin from dilute solutions has been investigated. The results show the importance of the hydrophilic-lipophilic balance in the foam separation of albumin. This balance is influenced by the association conditions of surface-active substances with polymeric albumin. The liquid crystalline phase formed by surfactants and glycerides in association with protein is found to be most effective in the foam separation of albumin.