Improvement of active chitosan film properties with rosemary essential oil for food packaging
Improvement of active chitosan film properties with rosemary essential oil for food packaging
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DOI：
10.1111/j.1365-2621.2011.02917.x
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发表时间：
2012-04-01
影响因子：
3.3
通讯作者：
Farzi, Gholamali
中科院分区：
文献类型：
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作者：
Abdollahi, Mehdi;Rezaei, Masoud;Farzi, Gholamali
以迷迭香精油(REO)为原料，以壳聚糖为原料制备活性涂膜。通过对负载稀土薄膜的物理、机械和光学性能的测试，研究了稀土掺杂浓度(0.5、1.0和1.5%v/v)对薄膜性能的影响。用扫描电子显微镜和傅里叶变换红外光谱研究了壳聚糖膜的微观结构和相互作用。FTIR表明，由于壳聚糖亲水基团与REO之间的相互作用，REO的掺入使壳聚糖膜的溶解度和吸水率分别降低了约25%和85%。结果表明，稀土氧化物的加入使薄膜的透光率从4.97提高到7.61，并且使薄膜在紫外光下的透光率降低25%以上。含REO的薄膜具有更高的抗菌活性和总酚含量。含REO的膜具有作为食品保鲜活性膜的潜力。
Rosemary essential oil (REO) was used to develop an active film from chitosan. The effects of REO concentration (0.5, 1.0 and 1.5% v/v) on film properties were studied by measuring the physical, mechanical and optical properties of the REO-loaded films. Scanning electron microscopy and Fourier transform infrared (FTIR) spectroscopy were used to study microstructure and the interaction of the chitosan-based films. The solubility and water gain of the chitosan film decreased about 25% and 85%, respectively, by REO incorporation, up to 1.5% v/v, because of the interaction between hydrophilic groups of chitosan and REO as confirmed by FTIR. It was determined that REO improved the transparency of the films from 4.97 in neat chitosan up to 7.61; moreover, it reduced the films light transmission in UV light more than 25%. Films containing REO showed more antibacterial activity and total phenol content. The films containing REO showed potential to be used as active film in food preservation.