1. A pectin-based antimicrobial surface coating material, comprising a pectin and a boron compound, the boron compound comprising sodium pentaborate or disodium octaborate, wherein the boron compound is cross-linked with the pectin, wherein the boron compound comprises 5% to 15% by mass of the coating material of sodium pentaborate or 5% to 15% by mass of the coating material of disodium octaborate, wherein the average thickness of the pectin-based antimicrobial surface coating material is 0.15 mm to 0.18 mm, and wherein the average tensile strength of the pectin-based antimicrobial surface coating material is 1070 g to 2170 g.
|