| 引用本文: | 项昭保1,2,张琳婧1,刘 岩1.没食子酸-壳聚糖抗氧化食品保鲜膜的制备与表征(J/M/D/N,J:杂志，M：书，D：论文，N：报纸).期刊名称,2026，43（2）：1-9 |
| CHEN X. Adap tive slidingmode contr ol for discrete2ti me multi2inputmulti2 out put systems[ J ]. Aut omatica, 2006, 42(6): 4272-435 |
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| 摘要: |
| 目的 研发绿色安全、功能明确、质量可控、成本较低的食品保鲜膜。 方法 以壳聚糖为成膜基质,以抗氧化活
性单体没食子酸为功效物质,配置不同质量浓度(0%、0. 05%、0. 1%、0. 2%和 0. 4%)的没食子酸/ 壳聚糖复合膜,并
研究不同浓度的没食子酸对复合膜的理化性质、机械性能和抗氧化活性的影响,通过傅里叶红外光谱、X-射线衍
射、扫描电镜等对复合膜进行结构表征,并采用烘箱加速氧化法测试复合膜对新制芝麻油的保鲜效果。 结果 没食
子酸的加入,使复合膜颜色整体偏红、偏黄,膜的厚度、含水量、水蒸气透过系数和断裂伸长率下降,而拉伸强度、不
透明度和水溶性增加;使壳聚糖结晶形态发生变化,能有效地清除 DPPH 和 ABTS 自由基,并能有效延缓芝麻油的
氧化酸败。 结论 采用没食子酸和壳聚糖可以制备具有良好抗氧化活性、绿色安全且成本较低的食品保鲜膜,没食
子酸质量浓度为 0. 1%的 GA-2 复合膜综合质量最佳。 |
| 关键词: 没食子酸 壳聚糖 抗氧化 保鲜膜 |
| DOI： |
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| Preparation and Characterization of Antioxidant Food Packaging Film Based on Gallic Acid and Chitosan |
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XIANG Zhaobao1 2,ZHANG Linjing1, LIU Yan1
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1. School of Environment and Resources Chongqing Technology and Business University Chongqing 400067 China
2. Key Laboratory of Natural Medicine Research of Chongqing Education Commission Chongqing Technology and Business
University Chongqing 400067 China
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| Abstract: |
| Objective This study aims to develop a green safe and low-cost food fresh-keeping film with well-defined
functional properties and controllable quality. Methods Using chitosan as the film-forming matrix and gallic acid an
antioxidant monomer as the functional component five chitosan CS -based films were prepared by incorporating gallic
acid at different mass concentrations 0% 0. 05% 0. 1% 0. 2% and 0. 4% w / v respectively . The effects of
different concentrations of gallic acid on the physicochemical properties mechanical performance and antioxidant activity
of composite films were systematically investigated. The structure of the composite film was characterized by Fourier
transform infrared spectroscopy FTIR X-ray diffraction XRD and scanning electron microscopy SEM . The
preservation efficacy of the composite films on freshly prepared sesame oil was evaluated using an oven accelerated
oxidation test. Results The addition of gallic acid caused the overall color of the composite film to be reddish or
yellowish. It reduced the thickness water content water vapor permeability coefficient and elongation at break of the
film and increased tensile strength opacity and water solubility. Furthermore the incorporation of gallic acid altered
the crystalline morphology of chitosan endowed the films with potent free radical scavenging capacity against both DPPH
and ABTS radicals and effectively delayed the oxidation and rancidity of sesame oil. Conclusion CS-based films
incorporated with gallic acid can be used to prepare a good fresh-keeping film with good antioxidant activity environmental friendliness safety and low cost. The GA-2 composite film with a gallic acid mass concentration of 0. 1% exhibits the
best overall performance. |
| Key words: gallic acid chitosan antioxidation fresh-keeping film |
