Multifunctional edible preservative film material and preparation method thereof

The invention discloses a multifunctional edible preservative film material and a preparation method thereof, and the multifunctional edible preservative film material is prepared by taking egg white as a main raw material, taking a small amount of glycerol as a plasticizer, and then adding a certain amount of yolk, egg shell powder, egg film biomass carbon dots, a chitosan solution and the like. The preservative film material has the functions of being edible, antibacterial, antioxidant, capable of blocking water vapor, supplementing calcium, anti-counterfeiting and the like, the method has the advantages of being simple in preparation process, low in cost, green, environmentally friendly and the like, and compared with a commercially available common preservative film, the preservative film can effectively prolong the shelf life of fresh fruits and vegetables or marine products to 3-5 days, and has an important application prospect in the field of food preservation. 本发明公开了一种多功能可食用保鲜膜材料及其制备方法，所述多功能可食用保鲜膜材料是以