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Carbon dots enhanced gelatin/chitosan bio-nanocomposite packaging film for perishable foods

Chinese Chemical Letters 2022年第10期33卷 4577-4582页

作者： Bofei Fu Qiaoling Liu Minghuan Liu Xiaofang Chen Hetong Lin Zongping Zheng Junqiu Zhu Congjie Dai Xiaochen Dong Da-Peng Yang key laboratory of Chemical Materials and Green Nanotechnology College of Chemical Engineering and Materials ScienceQuanzhou Normal UniversityQuanzhou 362000China Department of Clinical laboratory The Second Affiliated Hospital of Fujian Medical UniversityQuanzhou 362000China fujian province key laboratory for preparation and function development of active substances from marine algae College of Oceanology and Food ScienceQuanzhou Normal UniversityQuanzhou 362000China College of Food Science Fujian Agriculture and Forestry UniversityFuzhou 350002China School of Physical and Mathematical Sciences Nanjing Tech UniversityNanjing 211800China

Carbon dots(CDs)with intriguing fluorescent property,good biocompatibility,high stability,easy interaction with substrates,are burgeoning carbon nanoparticles with large potential in various *** CDs into the polymer matrix is becoming a popular strategy to endow the complex with new ***,the green-synthesized CDs was integrated into the mixture of gelatin(derived from waste fish scale)and chitosan,and a multifunctional bio-nanocomposite(defined as Gelatin/Chitosan/CDs)film was developed,which showed the excellent antibacterial,antioxidant,pH-sensitivity,UV shielding,and blue-emission *** effects of different concentrations of CDs on the physical,mechanical,structural,and functional activity of bio-nanocomposite film were *** with the Gelatin/Chitosan film,the Gelatin/Chitosan/CDs film with an optimum addition of 20%CDs showed the enhanced antibacterial,antioxidant as well as UV shielding *** importantly,it was used as an effective packaging material for fish meat preservation,reducing the loss of nutritional quality consumption,extending the shelf life of ***,the bio-nanocomposite films also possessed the anti-counterfeiting and pH-responsive properties due to the strong fluorescent emission of CDs,and had the great potential in developing the intelligent packaging *** work shed new light on the new application of CDs and the synthesis of bio-nanocomposite film in food industry.

关键词： Carbon dots Bio-nanocomposite Gelatin UV shielding Intelligent packaging

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