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With the rising nutritional requirements of food and the advancement of technology in the food industry, protein modification has become one of the food industry's top concerns. Glycosylation products are safer than other chemical modifications ones and have a significant deal of potential to enhance food's sensory qualities. This article summarizes the progression of casein glycosylation interactions, including covalently bonded and non-covalently linked reactions, and analyses the effect of glycosylation on the functional properties of casein. Glycosylation is a promising and socially significant protein modification strategy that can improve the functional qualities of casein in a number of ways, potentially helping the dairy processing industry and even food innovation research.

For a stochastic three-species food web model with double parameters perturbation and Lévy jumps, we give the existence and uniqueness of global positive solution,which is beneficial to further study its dynamic properties. Then, by constructing Lyapunov function and applying It′s formula and Chebyshev’s inequality, it is found that the model is stochastic and ultimately bounded. Moreover, the sufficient conditions of extinction are obtained by using exponential martingale inequality and Borel-Cantelli’s lemma. Finally, some numerical simulations are introduced to illustrate the rationality of the theoretical results. The results show that the model is stochastic and ultimately bounded under the influence of Lévy noise, and large Lévy noise can lead to the extinction of populations. The algorithm has obtained good results both in theory and numerical simulations, which provides certain significance for many problems of stochastic population models.