Preparation of natural blue pigment degradable film and oil oxidation resistance application

The invention relates to the technical field of food packaging, and aims to provide preparation of a natural blue pigment degradable film and oil oxidation resistance application. The natural blue pigment degradable film is prepared by the following steps: adding natural blue pigment into a basic film solution prepared from gelatin, sodium carboxymethyl cellulose (CMC) and glycerol in proportion to prepare a blue pigment film; the natural blue pigment is selected from a strain Pseudofusicoccum sp.F10 of a botryosphaeria genus, and the natural blue pigment is selected from a strain Pseudofusicoccum sp.F10 of a botryosphaeria When the adding concentration of the natural blue pigment degradable film pigment is 0.02%-0.04%, the pigment is uniformly distributed in the film and has no aggregation phenomenon; the optimal film forming process for preparing the natural blue pigment degradable film comprises 2.474 g of gelatin, 1.125 g of sodium carboxymethyl cellulose, 1.158 g of glycerin and 0.03% of blue pigment, a