title: Characterization and interfacial behavior of nanoparticles prepared from amphiphilic hydrolysates of β-conglycinin-dextran conjugates.
abstract: Amphiphilic graft copolymers were prepared from β-conglycinin-dextran conjugates hydrolyzed by trypsin at a degree of hydrolysis (DH) of 2.2%. Nanoparticles were prepared from β-conglycinin, β-conglycinin-dextran conjugates (CDC), and amphiphilic hydrolysates of β-conglycinin-dextran conjugates at DH 2.2% (CDCH) by a desolvation method. All of the nanoparticle samples exhibited spherical structures, as evidenced by dynamic light scattering, transmission electron microscopy, and small-angle X-ray scattering. The nanoparticles prepared from amphiphilic hydrolysates of β-conglycinin-dextran conjugates at DH 2.2% (CDCHN) exhibited higher interfacial pressure and dilatational modulus after long-term absorption at the oil-water interface compared with nanoparticles prepared from β-conglycinin (CN) and β-conglycinin-dextran conjugates (CDCN). This might be mainly associated with the higher surface hydrophobicity of CDCHN, which enhanced adsorption and intermolecular interactions of nanoparticles in the adsorbed layer.
authors.affiliation: Research and Development Center of Food Proteins, Department of Food Science and Technology, South China University of Technology (SCUT) , Guangzhou 510640, People's Republic of China.
authors.forename: Na-Na
authors.initials: NN
authors.lastname: Wu
authors.forename: Jin-Bo
authors.initials: JB
authors.lastname: Zhang
authors.forename: Bin
authors.initials: B
authors.lastname: Tan
authors.forename: Xiu-Ting
authors.initials: XT
authors.lastname: He
authors.forename: Juan
authors.initials: J
authors.lastname: Yang
authors.forename: Jian
authors.initials: J
authors.lastname: Guo
authors.forename: Xiao-Quan
authors.initials: XQ
authors.lastname: Yang
mesh_terms: D052179:Antigens, Plant / Q000737:chemistry*; D003911:Dextrans / Q000737:chemistry*; D005916:Globulins / Q000737:chemistry*; D006868:Hydrolysis; D057927:Hydrophobic and Hydrophilic Interactions; D053758:Nanoparticles / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D055314:Seed Storage Proteins / Q000737:chemistry*; D030262:Soybean Proteins / Q000737:chemistry*; D013499:Surface Properties; D014357:Trypsin / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: D052179:Antigens, Plant; D003911:Dextrans; D005916:Globulins; D011108:Polymers; D055314:Seed Storage Proteins; D030262:Soybean Proteins; C013894:beta-conglycinin protein, Glycine max; D014867:Water; D014357:Trypsin
keywords: conjugates; dextran; hydrolysates; interfacial properties; β-conglycinin