Astringin (trans-Astringin) is a natural glycoside found in the bark of Picea sitchensis and Picea abies (Norway spruce), in Vitis vinifera cell cultures and in wine. Astringin has potent antioxidant capacity and cancer-chemopreventive activity[1].
[1]. Le TK, et al. Highly regioselective hydroxylation of polydatin, a resveratrol glucoside, for one-step synthesis of astringin, a piceatannol glucoside, by P450 BM3. Enzyme Microb Technol. 2017 Feb;97:34-42.
















