A method for producing a complex composition of turkey tail mushroom extract—chitosan comprising: (i) preparing materials; (ii) mixing the turkey tail mushroom extract ingredient with the emulsifier ingredient to obtain a first homogeneous mixture; (iii) mixing the first homogeneous mixture with the chitosan solution ingredient to obtain a second homogeneous mixture; and (iv) sonicating the second homogeneous mixture to obtain the complex composition of turkey tail mushroom extract—chitosan.
