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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 NameAffiliationPostcode
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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