| 董荣,姚瑶瑶,程寒,苏未寅,刘新月,姚曦,杨海艳,王堃.植物多酚-纳米纤维素抗菌复合膜的制备及其保鲜性能研究[J].中国造纸学报,2026,41(3):98-108 |
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| 植物多酚-纳米纤维素抗菌复合膜的制备及其保鲜性能研究 |
| Study on Preparation and Freshness Preservation Performance of Plant Polyphenol-Nanocellulose Antibacterial Composite Films |
| 投稿时间:2025-12-01 修订日期:2026-01-13 |
| DOI:10.11981/j.issn.1000-6842.2026.03.98 |
| 中文关键词: 纳米纤维素 玫瑰多酚提取物 复合膜 抗菌保鲜性能 紫外阻隔性能 |
| Key Words:nanocellulose rose polyphenol extract composite film antimicrobial and freshness preservation properties UV-blocking properties |
| 基金项目: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)。 |
| 作者 | 单位 | 邮编 | | 董荣* | 1北京林业大学材料科学与技术学院,北京,100083 | 100083 | | 姚瑶瑶 | 1北京林业大学材料科学与技术学院,北京,100083 | 100083 | | 程寒 | 1北京林业大学材料科学与技术学院,北京,100083 | 100083 | | 苏未寅 | 1北京林业大学材料科学与技术学院,北京,100083 | 100083 | | 刘新月 | 1北京林业大学材料科学与技术学院,北京,100083 | 100083 | | 姚曦 | 2国际竹藤中心,竹藤国家林业和草原局重点实验室, 北京,100102 | 100102 | | 杨海艳 | 3西南林业大学材料与化学工程学院,云南昆明,650224 | 650224 | | 王堃* | 1北京林业大学材料科学与技术学院,北京,100083 | 100083 |
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| 中文摘要: |
| 本研究采用2,2,6,6-四甲基哌啶氮氧化物(TEMPO)/NaClO/NaClO2氧化体系对细菌纤维素(BC)进行改性,制得氧化纤维素纳米纤丝(TOCNF),并将其与玫瑰多酚提取物(RPE)复合,成功构筑兼具优异紫外阻隔性能与抗菌保鲜性能的rBC复合膜。探究了反应温度对TEMPO氧化过程的影响,并对rBC复合膜的理化性能进行表征与分析。结果表明,适度提升反应温度可有效强化TEMPO氧化效果,在60 ℃下制得TOCNF(BC-60)的羧基含量可达(1.00±0.17) mmol/g。RPE的引入不会破坏TOCNF规整有序的三维网状结构,同时可显著提升rBC复合膜的力学性能与热稳定性。当BC-60与RPE质量比为1∶10时,制得rBC-T10性能最优,可实现200~400 nm全波段紫外光的完全阻隔,且对大肠杆菌具有一定的抗菌性能,菌液质量分数0.5%时的抑菌圈直径为(13.02±0.29) mm。rBC-T10包装的鲜虾样品在4 ℃下贮藏10天后,pH显著低于由BC-60制得的纯TOCNF膜包装的鲜虾样品,证实其具备优良的保鲜效果。 |
| 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. |
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