Hirose Kaoru, Nitto Rieko, Yokota Shohtaro, Kawano Yayoi, Yamatoya Kazuhiko, Tabuchi Akira, Suzuki Yumeo, Hanawa Takehisa
Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Chiba 2788510, Japan.
MP Gokyo Food & Chemical Co., Ltd., Osaka, Kita-ku 5300001, Japan.
ACS Omega. 2024 Dec 19;10(1):390-399. doi: 10.1021/acsomega.4c06410. eCollection 2025 Jan 14.
This study aimed to prepare films using Xyloglucan (Xylo) and tea extract (TE) to treat aphthous stomatitis without causing discomfort. Xylo, which gelates by adding polyphenol, was used as a gelation agent, and TE, which contains epigallocatechin-3-gallate (EGCG) with antioxidant properties, was used as an active pharmaceutical agent. Two kinds of films, hydrogel and xerogel films, were prepared by mixing various amounts of Xylo and TE. Their gelling behavior and physicochemical properties were evaluated. The sol-gel transition temperature increased with increased TE content, and the rupture strength of the films increased with increasing Xylo and TE concentrations. Rapid water absorption and high adhesiveness were observed during the reconstruction process from the xerogel to the hydrogel. The concentrations of Xylo and TE controlled the formulations' physicochemical properties and the EGCG release rate. These results concluded that the xerogel prepared by using Xylo and TE could be applied as an oral mucosal adherent film formulation.
本研究旨在制备使用木葡聚糖(Xylo)和茶提取物(TE)的薄膜,用于治疗复发性口疮性口炎且不会引起不适。通过添加多酚而凝胶化的Xylo用作凝胶剂,而含有具有抗氧化特性的表没食子儿茶素-3-没食子酸酯(EGCG)的TE用作活性药剂。通过混合不同量的Xylo和TE制备了两种薄膜,即水凝胶膜和干凝胶膜。对它们的凝胶化行为和物理化学性质进行了评估。溶胶-凝胶转变温度随TE含量的增加而升高,薄膜的破裂强度随Xylo和TE浓度的增加而增加。在从干凝胶到水凝胶的重建过程中观察到快速吸水和高粘附性。Xylo和TE的浓度控制了制剂的物理化学性质和EGCG释放速率。这些结果表明,使用Xylo和TE制备的干凝胶可作为口腔粘膜粘附膜制剂应用。