Interaction between lysozyme and procyanidin: Multilevel structural nature and effect of carbohydrates

► Interaction between procyanidin B3 and lysozyme was studied by various techniques. ► The loss of lysozyme activity was correlated with its structural change. ► Gum arabic and sucrose have great effects on protein/polyphenol association. ► We provided two probable mechanisms for the effects of carbohydrates.