|
二维码（扫一下试试看！） |
| Study on Preparation and Freshness Preservation Performance of Plant Polyphenol-Nanocellulose Antibacterial Composite Films |
| Received:December 01, 2025 Revised:January 13, 2026 |
| DOI：10.11981/j.issn.1000-6842.2026.03.98 |
| Key Words:nanocellulose;rose polyphenol extract;composite film;antimicrobial and freshness preservation properties;UV-blocking properties |
| Fund Project:文山州2025年科技攻关“揭榜挂帅”项目（玫瑰药食两用资源功能因子的分析、提取及纯化工艺开发）国家自然科学基金32471805文山州2025年科技攻关“揭榜挂帅”项目（玫瑰药食两用资源功能因子的分析、提取及纯化工艺开发）；国家自然科学基金（32471805）。 |
| Author Name | Affiliation | Postcode | | Dong Rong* | 1College of Materials Science and Technology， Beijing Forestry University， Beijing， 100083 | 100083 | | Yao Yaoyao | 1College of Materials Science and Technology， Beijing Forestry University， Beijing， 100083 | 100083 | | Cheng Han | 1College of Materials Science and Technology， Beijing Forestry University， Beijing， 100083 | 100083 | | Su Weiyin | 1College of Materials Science and Technology， Beijing Forestry University， Beijing， 100083 | 100083 | | Liu Xinyue | 1College of Materials Science and Technology， Beijing Forestry University， Beijing， 100083 | 100083 | | Yao Xi | 2Key Lab of Bamboo and Rattan of National Forestry and Grassland Administration， International Bamboo and Rattan Centre， Beijing， 100102 | 100102 | | Yang Haiyan | 3College of Materials and Chemical Engineering， Southwest Forestry University， Kunming， Yunnan Province， 650224 | 650224 | | Wang Kun* | 1College of Materials Science and Technology， Beijing Forestry University， Beijing， 100083 | 100083 |
|
| Hits: 65 |
| Download times: 19 |
| Abstract: |
| In this study， bacterial cellulose （BC） was modified using a 2，2，6，6-tetramethylpiperidine oxonitrile （TEMPO）/NaClO/NaClO₂ oxidation system， to prepare the oxidized cellulose nanofibrils （TOCNF）. Then the TOCNF was composited with rose polyphenol extract （RPE） to successfully fabricate rBC composite films exhibiting both excellent UV-blocking and antibacterial and freshness preservation properties. The effect of reaction temperature on the TEMPO oxidation process was investigated， and the physicochemical properties of rBC composite films were characterized and analyzed. The results showed that moderately increasing the reaction temperature effectively enhanced the TEMPO oxidation effect. The carboxyl content of TOCNF （BC-60） prepared at 60 ℃ could reach (1.00 ± 0.17) mmol/g. The introduction of RPE did not disrupt the regular and ordered three-dimensional network structure of TOCNF， while significantly improving the mechanical properties and thermal stability of rBC composite film. When the mass ratio of BC-60 to RPE was 1∶10， the prepared rBC-T10 exhibited optimum performance， achieving complete blocking of the full UV spectrum （200~400 nm） and demonstrating excellent antibacterial activity against E.coli with the diameter of the inhibition zone of (13.02 ± 0.29) mm at a bacterial concentration of 0.5%. After 10 d of storage at 4 ℃， the pH of shrimp samples packaged in rBC-T10 was significantly lower than that of samples packaged in pure TOCNF films made from BC-60. |
| View Full Text View/Add Comment Download reader HTML |
