Shellac resin ammonium salts (SRAS) were prepared from the natural product of shellac resin and ammonium hydroxide by amidation. Resveratrol (RES) was embedded with SRAS to improve its thermostability, antioxidant activity, and bioavailability. The absorption of RES was promoted in the intestinal tract. Meanwhile, an enteric-coated microcapsule-loaded RES was successfully established by spray drying technology. The RES microcapsule exhibited a spherical shape and perfect stability as well as outstanding sustainable release character in simulate...
