Abstract: Cellulose is an ideal alternative material to solve the environmental pollution problem caused by petroleum-based food packaging. Due to the high-density hydrogen bond that makes cellulose highly hydrophilic, it is urgent to improve the barrier property of cellulose. This paper reviews the green preparation methods of plant-based cellulose, and elaborates the measures to improve the barrier property of the cellulose. This paper focuses on some examples of the application of cellulose-based barrier packaging materials in fresh and processed foods. Finally, this paper summarizes the current challenges faced by cellulose barrier packaging, hoping to provide impetus for future industrial production.

Key words: green preparation; cellulose modification; barrier property; food packaging