結論

與對照薄膜相比，印刷薄膜表現出改善的水蒸氣阻隔性能。 Qo 印刷薄膜比混合薄膜更有效。 與對照薄膜相比，印刷的 Qo 薄膜的斷裂伸長率降低，拉伸強度增加，而印刷的混合薄膜的伸長率和拉伸強度均增加。

Th 納米封裝印刷的效率取決于印刷層數、接觸角、添加到分散體中的甘油量和薄膜類型。 兩種薄膜中 Th 的傳遞都在 8 天時完成，表明這些薄膜是傳遞活性化合物的良好平臺。 然而，NQoThs 在薄膜中的分布表現出不同的釋放曲線； Qo 薄膜在第一階段表現出突釋，而混合薄膜表現出較慢的釋放。

與使用 NQos 印刷的薄膜相比，使用 NQoThs 印刷的薄膜對革蘭氏陽性菌（L. innocua 和 S. aureus）和革蘭氏陰性菌（S. typhimurium、E. aerogenes、P. aeruginosa 和 E. coli）表現出更高的 AM和對照膜。 革蘭氏陰性菌（鼠傷寒沙門氏菌、產氣大腸桿菌和大腸桿菌）獲得了最佳結果。

這些發現表明，可印刷納米技術的使用可以改善由可再生生物聚合物制備的薄膜的功能，因為這些薄膜可以提高水蒸氣阻隔性，作為傳遞活性化合物的良好平臺，并增加抗菌活性。 因此，這些薄膜可能有助于開發新的食品包裝材料。

致謝

作者要感謝 INNOVA-CORFO N度 12IDL2-13621 的財政支持。 我們感謝智利圣地亞哥大學的 Fernando Osorio 博士和 Ricardo Andrade 博士對接觸角測量的幫助。 我們還要感謝 Conicyt 授予 Nelson Caro 的博士獎學金。

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