CNC作为结构色材料在食品包装中的应用

Application in Food Packaging of CNC as a Structural Color Material

纤维素纳米晶体(CNC)作为一种植物基材料,具有手性向列相结构,其生物降解性强、密度低、生物适应性强、表面羟基丰富、亲水、无毒,并可形成结构色,在食品包装中具有广阔的应用前景。本文基于CNC的结构和性能,对CNC的制备方法、CNC作为结构色材料在食品包装中的智能显色应用以及其他功能应用(如保鲜包装、可食性包装、活性包装)进行综述、归纳和分析,并对其在食品包装中的进一步应用研究进行展望。

Cellulose nanocrystals(CNC),as a plant-based material with a chiral nematic structure,have strong biodegradability,low density,strong biological adaptability,rich surface hydroxyl groups,hydrophilicity,nontoxicity,and can form structural colors.They have broad application prospects in food packaging.Based on the structure and properties of CNC,the preparation method of CNC,the intelligent color rendering application of CNC as a structural color material in food packaging,and other functional applications(such as fresh-keeping packaging,edible packaging,active packaging)were reviewed,summarized and analyzed.Finally,its further application research in food packaging was discussed.