Abstract Use of nanocomposites is a well-established approach in enhancing the mechanical and barrier properties of bionanocomposite film for food packaging applications. The seed mucilage of Ocimum basilicum was employed for the preparation of bionanocomposite films with montmorillonite (MMT) as nanofiller. The films were prepared by solvent-casting method at varied solution pH (1, 3, 5 and 9) and MMT loading (1%, 3%, 5%, 10%, 15% and 20%). The films were characterized for physical, mechanical and barrier properties in addition to microstructure and X-ray diffraction pattern. XRD analysis revealed the exfoliated dispersion of MMT at pH 9, confirming its effective interaction with the bionanocomposite film. Maximum film tensile strength was achieved at a lower MMT load of 5%. Water vapour permeability reduced with increase in MMT loading up to 5%, followed by an increase at higher MMT loadings. Film formed at pH 9 showed tensile strength of 17.3 ± 0.33 MPa and reduced water vapour permeability (WVP) of 0.21 g mm.m−2.hr−1.kPa−1.

中文翻译：

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罗勒种子粘液用蒙脱石增强，用于制备用于食品包装应用的生物纳米复合膜

摘要 使用纳米复合材料是提高用于食品包装应用的生物纳米复合膜的机械和阻隔性能的一种行之有效的方法。罗勒种子粘液用于制备以蒙脱石（MMT）为纳米填料的生物纳米复合薄膜。在不同的溶液 pH 值（1、3、5 和 9）和 MMT 负载量（1%、3%、5%、10%、15% 和 20%）下，通过溶剂浇铸法制备薄膜。除了微观结构和 X 射线衍射图外，还对薄膜的物理、机械和阻隔性能进行了表征。XRD 分析揭示了 MMT 在 pH 9 下的剥离分散体，证实了它与生物纳米复合膜的有效相互作用。在 5% 的较低 MMT 负载下实现最大薄膜拉伸强度。水蒸气渗透率随着 MMT 负载量的增加而降低，最高可达 5%，随后在更高的 MMT 负载下增加。在 pH 9 下形成的薄膜显示出 17.3 ± 0.33 MPa 的拉伸强度和 0.21 g mm.m-2.hr-1.kPa-1 的降低的水蒸气渗透率 (WVP)。