纳米Fe3＋-TiO2改性聚乙烯醇基紫胶复合涂膜材料工艺优化

doi:10.7506/spkx1002-6630-201504010

食品科学

纳米Fe^3＋-TiO₂改性聚乙烯醇基紫胶复合涂膜材料工艺优化

龙门1，章建浩2，蔡华珍1，马磊2，宋野2

1.滁州学院生物与食品工程学院，安徽滁州 239000；2.国家肉品质量安全控制工程技术研究中心，教育部肉品加工与质
量控制重点实验室，农业部农畜产品加工与质量控制重点开放实验室，南京农业大学食品科技学院，江苏南京 210095

出版日期:2015-02-25 发布日期:2015-02-16
基金资助:
安徽省高校特色专业建设项目（20101032）；“十二五”国家科技支撑计划项目（2012BAD28B01）

Modification of PVA-Based Composite Coating Packaging Material with Nano-Fe3+-TiO2 and Shellac

LONG Men1, ZHANG Jianhao2, CAI Huazhen1, MA Lei2, SONG Ye2

1. Department of Biological and Food Engineering, Chuzhou University, Chuzhou 239000, China;
2. National Center of Meat Quality and Safety Control, Key Laboratory of Meat Processing and Quality Control, Ministry of Education,
Key Laboratory of Food Processing and Quality Control, Ministry of Agriculture, College of Food Science and Technology,
Nanjing Agricultural University, Nanjing 210095, China

Online:2015-02-25 Published:2015-02-16

摘要/Abstract

摘要：

以新型纳米Fe3＋-TiO2、紫胶、琥珀酸单甘油酯（succinylated monoglycerides，SMG）添加量为影响因素，对乳化紫胶聚乙烯醇（polyvinyl alcohol，PVA）溶液体系改性，以成膜透湿率为指标，通过响应面试验方法优化复合膜制备工艺，并对复合膜抑菌性能进行研究。结果表明：紫胶协同纳米Fe3＋-TiO2交联改性PVA能显著降低PVA基膜材料的透湿率（P＜0.05）；复合膜中紫胶添加量与纳米Fe3＋-TiO2及SMG添加量对成膜透湿率有显著的交互作用（P＜0.05）；以复合膜透湿率为指标的回归优化结果：纳米Fe3＋-TiO2添加量9.18 mg/100 mL、紫胶添加量1.33 g/100 mL、SMG添加量0.92 g/100 mL，此时成膜透湿率为（392.43±8.37） g/（m2·24 h），比PVA单膜降低了60%以上；复合膜在可见光催化反应180 min后，与PVA单膜相比，沙门氏菌和李斯特菌的活菌数量分别降低1.8（lg（CFU/mL））和1.6（lg（CFU/mL）），说明纳米Fe3＋-TiO2改性PVA基紫胶复合涂膜材料能赋予其可见光催化靶向抑菌性能。

关键词: 纳米Fe3＋-TiO2, 聚乙烯醇, 紫胶, 成膜透湿率, 光催化抑菌

Abstract:

The preparation of nano-Fe3+-TiO2 modified PVA/shellac composite film was optimized in the present study. Nano-
Fe3+-TiO2 particles were used to modify polyvinyl alcohol (PVA) solution, and succinylated monoglycerides (SMG) was used
to emulsify and stabilize PVA/shellac solution, and then the solution was dried to form a film. By using the concentration
of nano-Fe3+-TiO2, shellac and SMG as the experimental factors and moisture permeability as the response variables, we
optimized the film formation process by response surface methodology. Antibacterial properties of composite films were
investigated. The results showed that shellac and nano-Fe3+-TiO2 modified PVA could significantly reduce the water vapor
transmission rate of the PVA-based film material (P < 0.05). Shellac concentration had significant interaction effects on
the water vapor transmission rate with nano-Fe3+-TiO2 and SMG concentration (P < 0.05). The optimal concentrations of
Fe3+-TiO2 nanoparticles, shellac and SMG were 9.18, 1.33, and 0.92 g/100 mL, respectively. These results indicated that
appropriate proportion of different components could achieve the lowest water vapor transmission rate for the composite
film. Under visible light irradiation, the composite film produced by the optimized process conditions had high antibacterial
properties, and the viable cell numbers of Salmonella and Listeria were reduced by 1.8 (lg(CFU/mL)) and 1.6 (lg(CFU/mL))
after photocatalysis for 180 min, respectively, compared with single PVA films.

Key words: nano-Fe3+-TiO2, polyvinyl alcohol (PVA), shellac, water vapor transmission, photocatalytic antibacterial property

中图分类号:

TS206.4

龙门1，章建浩2，蔡华珍1，马磊2，宋野2. 纳米Fe^3＋-TiO₂改性聚乙烯醇基紫胶复合涂膜材料工艺优化[J]. 食品科学, doi: 10.7506/spkx1002-6630-201504010.

LONG Men1, ZHANG Jianhao2, CAI Huazhen1, MA Lei2, SONG Ye2. Modification of PVA-Based Composite Coating Packaging Material with Nano-Fe3+-TiO2 and Shellac[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201504010.

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纳米Fe^3＋-TiO₂改性聚乙烯醇基紫胶复合涂膜材料工艺优化

Modification of PVA-Based Composite Coating Packaging Material with Nano-Fe3+-TiO2 and Shellac

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