Quantitative proteomic analysis of chicken egg white and its components

[Display omitted] •A total of 173 proteins were identified in the EW and its there components.•Ovomucin and lysozyme are the main differential proteins of TKEW and TNEW.•Mutual validation of various properties of egg whites with the proteome.•The most of the 61 unique proteins in the CLZ originate from the egg yolk.•A total of 28 DAPS were identified by screening between EW and CLZ. The protein profiles and properties of chicken egg white and its three components (thick egg white, TKEW; thin egg white, TNEW; and chalaza, CLZ) were comprehensively compared. The proteomes of TNEW and TKEW are relatively similar, but the abundance of mucin-5B and mucin-6 (the two subunits of ovomucin) is significantly higher in TKEW than in TNEW (42.97% and 870.04%, respectively), while the lysozymes in TKEW are 32.57% higher (p