Contrastive Study of the Foaming Properties of N-Acyl Amino Acid Surfactants with Bovine Serum Albumin and Gelatin

Abstract

N-acyl-isoleucine 10) . The surface and antibacterial properties of N-palmitoyl amino acid surfactants were studied by Sreenu et al. 11) . Dianrui Zhang et al. studied the environmental properties of lauryl glutamate and the properties of gel foam 12) . Most current research on N-acyl amino acid surfactants focused on synthesis, environmental response, surface activity, interfacial property 13) , toxicology 14) , and antibacterial activity.Surfactant/protein mixtures have been widely used in detergents, cosmetics, food, and pharmaceutical fields. The interaction between surfactants and proteins has attracted much attention in the past decades. Surfactants can stabilize or alter the structure of proteins 15,16) . Therefore, surfactants have attracted much attention in the cosmetics, medicine, and food fields. Such as Alzheimer s disease, that is related with starch fibrous denatured protein aggregation 17,18) . In the food field, the mixtures of protein and surfactant are usually used as emulsifier 19) and foam stabilizer 20) .

The Conformational Changes of Bovine Serum Albumin at the Air/Water Interface: HDX-MS and Interfacial Rheology Analysis

“…The FS was not affected by the concentration, which was likely due to the high protein concentration used. With the increase in the BSA concentration, more BSA molecules were adsorbed to the air/water interface, resulting in the ascent of the FA [ 35 , 36 ]. Nevertheless, with the continuous elevation of the protein concentration, the adsorption equilibrium of the BSA at the air/water interface was reached, leading to a constant FA [ 37 , 38 ].…”