“…However, not many of them are made from natural ingredients. In fact, these natural materials have good physical and chemical properties that are suitable for many applications [ [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] ]. In recent years, there has been a growing focus on exploring the potential of polyphenolic compounds as an additive for PVA [ [11] , [12] , [13] , [14] ].…”