Study on the effect of processing methods on the total polyphenol, 2,3,5,4’-tetrahydroxystilben-2-O-β-D-glucoside, and physcion contents in Fallopia multiflora Thunb. Haraldson root. Braz. J. Pharm. Sci. 2023;59:e21570. doi:10.1590/s2175-97902023e21570