title: Emulsifying and foaming properties of ultraviolet-irradiated egg white protein and sodium caseinate.
abstract: The physicochemical and functional properties of ultraviolet (UV)-treated egg white protein (EW) and sodium caseinate (SC) were investigated. UV irradiation of the proteins was carried out for 30, 60, 90, and 120 min. However, the SC samples were subjected to extended UV irradiation for 4 and 6 h as no difference was found on the initial UV exposure time. Formol titration, SDS-PAGE, and FTIR analyses indicated that UV irradiation could induce cross-linking on proteins and led to improved emulsifying and foaming properties (P < 0.05). These results indicated that the UV-irradiated EW and SC could be used as novel emulsifier and foaming agents in broad food systems for stabilizing and foaming purposes.
authors.affiliation: Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Minden, Penang, Malaysia.
authors.forename: Yau-Hoong
authors.initials: YH
authors.lastname: Kuan
authors.forename: Rajeev
authors.initials: R
authors.lastname: Bhat
authors.forename: Alias A
authors.initials: AA
authors.lastname: Karim
mesh_terms: D002364:Caseins / Q000737:chemistry*; D004527:Egg Proteins / Q000737:chemistry*; D004529:Egg White / Q000737:chemistry*; D004591:Electrophoresis, Polyacrylamide Gel; D004655:Emulsions; D017550:Spectroscopy, Fourier Transform Infrared; D014466:Ultraviolet Rays
chemical_list: D002364:Caseins; D004527:Egg Proteins; D004655:Emulsions