biostudies-literatureUnknown33Zhang WDeveloping safe and environmentally friendly food packaging paper remains a major technical challenge. The utilization of bio-based polymers to produce paper-based packaging materials is an important focus in the food industry. In this study, cationic-acetylated starch was adopted as a raw material and combined with chitosan to prepare novel greaseproof coating materials. Scanning electron microscope (SEM) revealed that the surface of uncoated paper exhibited a fibrous network structure. In contrast, the coated paper showed a smooth surface with the fibrous texture completely covered. The oil resistance grade of the paper increased from 0 to 12, demonstrating excellent greaseproof performance. In addition, the water vapor transmission rates (WVT) for uncoated paper and coated paper are 258Food chemistry: X103517https://www.ebi.ac.uk/biostudies/studies/S-EPMC12830176biostudies-literaturePreparation of greaseproof paper coated with cationic-acetylated glutinous rice starch for food packaging.PMC12830176Zhang WLi XYang LZhang XDu GHuang QfalsePreparation of greaseproof paper coated with cationic-acetylated glutinous rice starch for food packaging.Developing safe and environmentally friendly food packaging paper remains a major technical challenge. The utilization of bio-based polymers to produce paper-based packaging materials is an important focus in the food industry. In this study, cationic-acetylated starch was adopted as a raw material and combined with chitosan to prepare novel greaseproof coating materials. Scanning electron microscope (SEM) revealed that the surface of uncoated paper exhibited a fibrous network structure. In contrast, the coated paper showed a smooth surface with the fibrous texture completely covered. The oil resistance grade of the paper increased from 0 to 12, demonstrating excellent greaseproof performance. In addition, the water vapor transmission rates (WVT) for uncoated paper and coated paper are 2582026-01-01T00:00:00Z2026 Jan2026-06-21T04:44:42.048Z2026-06-21T03:07:27.967ZS-EPMC128301764158555910.1016/j.fochx.2026.103517