Pickering emulsions are promising systems to act as carriers of active hydrophobic components, and to improve compatibility and the water vapor barrier properties of bio-based films. This study aimed to investigated the effects of cinnamon essential oil Pickering emulsions (CEOEs) using zein/carboxymethyl tamarind gum as stabilizers on the mechanical, barrier, antibacterial and antioxidant properties of Hydroxypropyl methyl cellulose (HPMC) films, and assessed the influence of carboxymethylation degree. In addition, the effect of the packaging was studied on the shelf life of cherry tomatoes. Results showed that the droplet size reduced approximately from 93.03 to 10.59 μm with the increasing degree of substitution (DS), greatly facilitating the droplet uniform distribution in film matrix. Moreover, with the addition of CEOEs, significant increase was observed with the tensile strength from 8.46 to 25.41 MPa, and the water vapor permeability decreased from 6.18 × 10⁻¹⁰ to 4.24 × 10⁻¹⁰ g·m⁻¹·s⁻¹·Pa⁻¹. The films exhibited good UV barrier properties without sacrificing the transparency after adding CEO. Furthermore, the antibacterial and antioxidant activities of the prepared films have also been greatly improved. Consequently, the CEOEs was an ideal alternative for incorporation with HPMC based films for increasing the shelf life of cherry tomatoes.

皮克林乳液是一种很有前途的体系，可作为活性疏水组分的载体，并可改善生物基薄膜的相容性和水蒸气阻隔性能。本研究旨在研究以玉米醇溶蛋白/羧甲基罗望子胶为稳定剂的肉桂精油皮克林乳液（CEOEs）对羟丙基甲基纤维素（HPMC）薄膜的机械、阻隔、抗菌和抗氧化性能的影响，并评估羧甲基化程度的影响。 . 此外，还研究了包装对圣女果保质期的影响。结果表明，随着取代度 (DS) 的增加，液滴尺寸从 93.03 减少到 10.59 μm，极大地促进了液滴在薄膜基质中的均匀分布。此外，随着CEOE的加入，^-10至4.24 × 10 ^-10  g·m ^-1 ·s ^-1 ·Pa ^-1。添加 CEO 后，薄膜表现出良好的紫外线阻隔性能，且透明度不受影响。此外，制备的薄膜的抗菌和抗氧化活性也得到了极大的提高。因此，CEOE 是与基于 HPMC 的薄膜结合以延长圣女果保质期的理想替代品。