酸化ヒアルロン酸系生分解性ヒドロゲルにシナモン酸カリウムを担持：収穫後ブドウ保存のための持続可能なコーティング

Fruit preservation materials are crucial for inhibiting post-harvest spoilage and extending fruit shelf life. However, a notable limitation of existing preservation materials is their frequent failure to simultaneously exhibit robust antibacterial activity, excellent biocompatibility, and effective shelf-life extension. Based on this, the present study intends to develop a potassium cinnamate-loaded hydrogel (PC@OHA-cl-SD^gel) for addressing the aforementioned challenges in post-harvest grape preservation. Primarily, potassium cinnamate (PC) was used as an antibacterial agent to prepare PC@OHA-cl-SD^gel. The low cytotoxicity, high biocompatibility, and potent antibacterial activity endow PC@OHA-cl-SD^gel with an application in post-harvest grape preservation. Storage experiments demonstrated that coating grapes with PC@OHA-cl-SD^gel inhibited pH fluctuations, weight loss, and spoilage over a 10-day storage. PC@OHA-cl-SD^gel effectively maintained the quality of post-harvest grapes and extended their shelf-life. Therefore, PC@OHA-cl-SD^gel holds great promise as a novel preservation material for post-harvest grapes, with potential extensibility to other perishable fruits that face similar post-harvest quality deterioration issues.