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| Study on Preparation, Antioxidant Property, and Stability of Metal-Polyphenol Network/Cellulose Microfibrils Composite |
| Received:November 08, 2021 |
| DOI：10.11981/j.issn.1000-6842.2022.03.10 |
| Key Words:metal-polyphenol network;cellulose microfibrils;antioxidant property;food packaging material;complex |
| Fund Project:国家自然科学基金项目（32171727，32001276）；北京市科协金桥工程种子资金项目。 |
| Author Name | Affiliation | Postcode | | JIAO Ting* | China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102
College of Light Industry Science and Engineering， Tianjin University of Science & Technology， Tianjin， 300457
National Engineering Lab for Pulp and Paper， Beijing， 100102 | 100102 | | ZHANG Hongjie | China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 | 100102 | | ZHANG Xue | China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 | 100102 | | ZHANG Haiyan | China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102
College of Light Industry Science and Engineering， Tianjin University of Science & Technology， Tianjin， 300457
National Engineering Lab for Pulp and Paper， Beijing， 100102 | 100102 | | CHENG Yun | China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 | 100102 | | ZHANG Wenhui | College of Light Industry Science and Engineering， Tianjin University of Science & Technology， Tianjin， 300457 | 300457 |
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| Abstract: |
| Metal-polyphenol network （MPN） was prepared by Fe3+ and tannic acid （TA）， which was further used for functional modification of cellulose microfibrils （CMF）， to prepare CMF-MPN complex. The effects of preparation conditions of CMF and MPN on the antioxidant property and stability of the CMF-MPN complex were investigated. The results showed that MPN endowed CMF with antioxidant property， and the DPPH clearance rate of the obtained CMF-MPN complex reached to 97.0% at MPN （prepared at TA∶Fe3+=4∶1 and pH value of 3） additive amount of 2%. The residual mass of CMF-MPN complex increased by 8.13% compared with CMF but the maximum pyrolysis temperature decreased slightly according to the thermogravimetric analysis （TGA）. Fourier transform infrared spectroscopy （FT-IR） analysis suggested the physical adsorption between CMF and MPN. Moreover， the application of CMF as a carrier improved the stability of the MPN structure， maintaining 80% of the initial antioxidant property after 60 days， showing the performance of releasing antioxidant factors continuously and slowly. This work provided a new idea for the development of green food preservation packaging materials. |
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