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Development and characterisation of gelatine/palm wax/lemongrass essential oil (GPL)‐coated paper for active food packaging
Packaging Technology and Science ( IF 2.6 ) Pub Date : 2020-06-02 , DOI: 10.1002/pts.2512
Sahid Nurul Syahida 1 , Zuriyati M.A. Ainun 2 , Mohammad R. Ismail‐Fitry 1 , Zainal A. Nur Hanani 1, 3
Affiliation  

This research focused on the enhancement of paper through the incorporation of a biodegradable and hydrophobic film coating with antioxidant properties. The effects of different lemongrass essential oil (LEO) concentrations (0–12%) on the physical, mechanical, microstructural, water‐resistance, antioxidant and biodegradable properties of gelatine/palm wax/lemongrass essential oil (GPL)‐coated paper were analysed. Uncoated paper was used as a control. The GPL‐coated papers were heat sealable and had significantly (p < 0.05) higher tensile strength and stretchability but lower stiffness than those of the control paper. The GPL‐coated paper incorporated with higher LEO concentrations showed a significant (p < 0.05) increase in the initial contact angle while also demonstrating significant (p < 0.05) reductions in the Cobb value and water vapour permeability. The GC–MS analysis revealed that LEO was highly dominated by monoterpenes, sesquiterpenes, and their oxygenated derivatives, supporting that all GPL‐coated papers have a good amount of total phenolic compounds and free radical scavenging activities, which improved significantly (p < 0.05) with higher LEO concentrations. In conclusion, the GPL film coating was capable of improving the physical, mechanical and functional properties of Kraft paper and has the potential to be applied for food products.

中文翻译:

用于活性食品包装的明胶/棕榈蜡/柠檬香精油(GPL)涂层纸的开发和表征

这项研究的重点是通过加入具有抗氧化特性的可生物降解的疏水性薄膜涂料来增强纸张质量。分析了不同浓度的柠檬草精油(LEO)(0-12%)对明胶/棕榈蜡/柠檬香精油(GPL)涂布纸的物理,机械,微观结构,耐水性,抗氧化剂和可生物降解特性的影响。未涂布纸用作对照。涂有GPL的纸具有热封性,与对照纸相比,其拉伸强度和可拉伸性显着(p <0.05)高,但刚度却低。掺有较高LEO浓度的GPL涂层纸显示出显着的(p<0.05)增大了初始接触角,同时还表明Cobb值和水蒸气透过率显着降低(p <0.05)。GC-MS分析表明,LEO主要由单萜,倍半萜烯及其氧化衍生物占据主导地位,这表明所有GPL涂层纸均具有大量的总酚类化合物和自由基清除活性,从而显着改善了(p <0.05) LEO浓度较高。总之,GPL薄膜涂料能够改善牛皮纸的物理,机械和功能特性,并有潜力应用于食品。
更新日期:2020-06-02
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