Progress of Freeze-thaw Stability of Pickering Emulsion

The freeze-thaw stability of Pickering emulsion refers to the relatively stable characteristics of Pickering emulsion after undergoing a freeze-thaw cycle. In recent years, the research on the freeze-thaw stability of Pickering emulsion has been intensified. Research suggests that Pickering emulsion has a viscoelastic layer and a gel network structure that can effectively block the damage caused by ice crystals stress, and has good freeze-thaw stability. At present, Pickering emulsion is widely used in food as an active substance embedding agent, food packaging material and lipid substitute. Therefore, Pickering emulsion with freeze-thaw stability has potential commercial value. There are many factors affecting freeze-thaw stability, mainly temperature, ionic strength, particle composition, modification and preparation techniques, etc. This paper reviews the mechanism of freeze-thaw stability of Pickering emulsion and the research progress of factors affecting freeze-thaw stability. With the development of Pickering emulsion in food and various fields, the mechanism of freeze-thaw stability of Pickering emulsion based on molecular level will arouse people's interest.