Related Experiment Video
Updated: Jan 10, 2026

Mechanical Separation and Protein Solubilization of the Outer and Inner Perivitelline Sublayers from Hen's Eggs
Published on: January 27, 2021
ROS-mediated oxidation of egg white proteins accelerates egg quality deterioration
Bowen Deng1, Nan Xiao1, Shanguang Guo1
1The National Center for Precision Machining and Safety of Livestock and Poultry Products Joint Engineering Research Center, College of Food Science, South China Agricultural University, 510642, China.
None:
This study investigates the effects of oxidative levels on egg storage quality and the physicochemical properties of egg white protein (EWP) by regulating the concentration of reactive oxygen species (ROS) in egg white. The results demonstrated that elevated ROS concentrations accelerated egg quality deterioration, causing a significant decrease in egg protein index from 1.25 to 0.6 and a significant increase in CO2 emission rate. This consequently led to a substantial rise in egg white pH from 8.99 to 9.21. Sustained accumulation of ROS induces a significant decrease in antioxidant enzyme activity and causes egg white oxidation, resulting in a significant increase of carbonyl content from 0.11 mmol/mg to 0.42 mmol/mg. The aromatic amino acids on the surface of EWP are attacked by ROS, which disturbed the hydrogen bond interaction and reduced protein α-helix ratio. Rheological scanning results showed that the depolymerization of the egg white network and conformational deterioration synergistically accelerate the process of egg white thinning, which is related to ROS concentration.
More Related Videos
Related Concept Videos
Radical Autoxidation
Oxidation of Phenols to Quinones
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
Oxidation of Alcohols
The process of oxidation in a chemical reaction is observed in any of the three forms:
Oxidations of Aldehydes and Ketones to Carboxylic Acids
Aldehydes readily undergo oxidation in strong oxidizing agents such as potassium permanganate and chromic acid. The oxidation can also be carried out using mild oxidizing agents such as silver oxide. In fact, aldehydes can be easily oxidized...
Autoxidation of Ethers to Peroxides and Hydroperoxides
Protein Denaturation

