Dried tangerine peel tea and preparation technology thereof

The invention provides pericarpium citri reticulatae tea and a preparation technology thereof, and belongs to the technical field of pericarpium citri reticulatae tea. The preparation process comprises the following steps: dissolving caffeic acid and reacting to modify chitosan; subcritical water extraction of cinnamon bark essential oil; adding cinnamon bark essential oil to prepare a composite solution; and carrying out compression molding and preparing the anti-oxidation protective film. Modified chitosan is used as a film-forming base material, cinnamon bark essential oil is used as an antioxidant, a composite solution is prepared, then a pericarpium citri reticulatae composite tea cake is immersed in the composite solution, a layer of antioxidant protective film is formed on the surface of the composite tea cake, and due to the fact that chitosan has the advantages of being good in biocompatibility, good in film-forming property and the like, chitosan is used as the film-forming base material, and the an