Cyclodextrin metal-organic frameworks (CD-MOFs) are novel ordered porous materials with high adsorption and interfacial stabilization. Herein, oil-in-water emulsions stabilized by octadecenylsuccinic anhydride (ODSA) modified CD-MOFs (OCMs) with a volume fraction of 0.8 were prepared. A contact angle of 92° was achieved when 5 wt% ODSA was added to OCMs, which promoted the stabilization of OCMs-emulsions with homogeneous and spherical droplets. Moreover, the emulsion possessed a small droplet size of 7–9 μm (d_4,3), long-term storage stability and flocculation resistance. At the pH range of 10–12, the emulsions had a more desirable structure with a gel-like elastic network and a dense particle layer covered onto the droplets, which were verified by SEM and cryo-SEM. The 2D cross-linked particle film at the water-oil interface and the 3D cross-linked gel-like particle network in the continuous phase synergistically improved the stability of coalescence and flocculation of the OCMs-HIPPEs. Afterwards, the OCMs-HIPPEs with no discernible oil were used as printing ink, which had no droplet coalescence in the freeze-thaw and showed high 3D printing quality and shape retention. Overall, this study demonstrates that the ODSA-modified CD-MOFs with favorable properties may be used to fabricate high-quality edible HIPPEs for extrusion 3D printing ink.

环糊精金属有机框架 (CD-MOF) 是一种新型有序多孔材料，具有高吸附性和界面稳定性。在此，制备了由体积分数为 0.8 的十八碳烯基琥珀酸酐 (ODSA) 修饰的 CD-MOF (OCM) 稳定的水包油乳液。当向 OCM 中添加 5 wt% ODSA 时，接触角达到 92°，这促进了具有均匀球形液滴的 OCM 乳液的稳定性。此外，乳液具有 7–9 μm 的小液滴尺寸（d _4,3), 长期储存稳定性和抗絮凝性。在 10-12 的 pH 范围内，乳液具有更理想的结构，具有凝胶状弹性网络和覆盖在液滴上的致密颗粒层，这已通过 SEM 和低温 SEM 验证。水-油界面处的 2D 交联颗粒膜和连续相中的 3D 交联凝胶状颗粒网络协同提高了 OCMs-HIPPEs 的聚结和絮凝稳定性。随后，将不含可辨认油的 OCMs-HIPPEs 用作印刷油墨，在冻融过程中没有液滴聚结，显示出较高的 3D 打印质量和形状保持性。总的来说，这项研究表明，具有良好性能的 ODSA 修饰的 CD-MOF 可用于制造用于挤出 3D 打印墨水的高质量可食用 HIPPE。