Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India.
Int J Biol Macromol. 2020 Nov 15;163:1546-1556. doi: 10.1016/j.ijbiomac.2020.07.251. Epub 2020 Aug 1.
The objective of this research was to investigate the effect of different ratios of grapefruit seed extract (GFSE) on functional properties of bionanocomposite (BNC) films prepared with corn starch (CS) incorporated with chitosan (CH)-nanoclay. Experimental results exhibited that the addition of GFSE properly dispersed with CS combined with CH bionanocomposite films. The presence of GFSE from 0 to 1.5% v/v exhibited increase in crystallinity and TS while decease in EB, FS and WVP. Furthermore, an addition of 2%v/v GFSE revealed decrease in its physical properties. When bread samples were packed, synthetic plastic exhibited the proliferation of fungal growth in 6 days, whereas CS/CH/1.5% v/v GFSE bionanocomposite film exhibited the same for at least 20 days. This study presents that CS/CH/1.5% v/v GFSE nanoclay film could potentially be useful for novel eco-friendly active packaging for confectionary industries to extend the shelf life to maintain its quality and safety of food products.
本研究旨在研究不同比例柚籽提取物（GFSE）对玉米淀粉（CS）与壳聚糖（CH）-纳米粘土复合的生物纳米复合（BNC）薄膜功能特性的影响。实验结果表明，GFSE 的添加与 CS 结合 CH 生物纳米复合薄膜适当分散。GFSE 的存在从 0 到 1.5%v/v 表现出结晶度和 TS 的增加，而 EB、FS 和 WVP 的减少。此外，添加 2%v/v 的 GFSE 会降低其物理性能。当面包样品包装时，合成塑料在 6 天内表现出真菌生长的增殖，而 CS/CH/1.5%v/v GFSE 生物纳米复合薄膜至少在 20 天内表现出相同的情况。本研究表明，CS/CH/1.5%v/v GFSE 纳米粘土薄膜有可能成为糖果工业新型环保活性包装的有用材料，以延长保质期，保持食品的质量和安全。
