聚乙烯醇—鱼明胶—龙葵花青素复合膜的制备、结构表征及性能分析
作者:
作者单位:

(1. 长沙理工大学食品与生物工程学院,湖南 长沙 410114;2. 湖南省预制菜工程技术研究中心,湖南 长沙 410114;3. 湖南省湘味餐调智造与质量安全工程技术研究中心,湖南 长沙 410023;4. 平江县劲仔食品有限公司,湖南 岳阳 414517)

作者简介:

欧阳澜澜,女,长沙理工大学在读硕士研究生。

通讯作者:

王建辉(1980—),男,长沙理工大学教授,博士。E-mail:wangjh0909@163.com

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基金项目:

湖南省科技创新领军人才支持计划项目(编号:2023RC1056);湖南省杰出青年科学基金项目(编号:2021JJ10007);湖南省重点领域研发计划项目(编号:2021NK2015)


Preparation, structural characterization, and performance analysis of polyvinyl alcohol/fish gelatin/solanum nigrum anthocyanin composite film
Author:
Affiliation:

(1. School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China; 2. Hunan Provincial Engineering Technology Research Center of Prepared Dishes, Changsha, Hunan 410114, China; 3. Hunan Provincial Engineering Technology Research Center of Intelligent Manufacturing and Quality Safety of Xiang Flavored Compound Seasoning for Chain Catering, Changsha, Hunan 410023, China; 4. Pingjiang Jinzai Food Co., Ltd., Yueyang, Hunan 414517, China)

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    摘要:

    目的:筛选出结构与性能最优的聚乙烯醇—鱼明胶—龙葵花青素(PVA/FG-SNA)复合包装膜。方法:通过正交试验优化PVA-FG膜的制备工艺,采用厚度、水分含量、水蒸气透过率(WVP)、拉伸强度(TS)、断裂伸长率(EB)、傅立叶红外光谱分析(FTIR)、X衍射分析(XRD)、扫描电镜分析(SEM)、热重分析(TG)探究不同质量分数SNA对PVA-FG膜性能和微观结构的影响,并监测PVA/FG-SNA复合膜的pH颜色响应和NH3灵敏度。结果:当PVA-FG复配质量比为60∶40、加热温度为95 ℃、加热时间为1.5 h时,PVA-FG膜的水溶性为(36.03±2.63)%,WVP为2.91×10-4 g·mm/(m2·h·Pa);随着SNA质量分数的增加,PVA-FG膜的厚度、水分含量、WVP和EB随之增加。当SNA质量分数为0.2%时,复合膜的厚度为(0.07±0.01) mm,水分含量为(11.09±0.25)%,WVP为5.45×10-4 g·mm/(m2·h·Pa),TS为(21.12±1.07) MPa,EB为(373.77±8.59)%,且复合膜的各组分之间相容性较好。此外,PVA/FG-0.2% SNA膜在NH3气氛条件下的颜色响应良好,可作为pH指示膜。结论:PVA-FG复合基膜的疏水性能和机械性能与SNA质量分数呈负相关,SNA可显著增强膜的pH和NH3敏感性。

    Abstract:

    Objective: Screening of polyvinyl alcohol-fish gelatin-solanum nigrum anthocyanin (PVA/FG-SNA) composite packaging film with optimal structure and properties. Methods: Optimizing the fabrication process of films through orthogonal tests, and using thickness, moisture content, water vapor permeability (WVP), tensile strength (TS), elongation at break (EB), Fourier infrared spectroscopy (FTIR), X-diffraction (XRD), scanning electron microscopy (SEM), and thermogravimetric (TG) analysis to explore the effects of SNAs with different mass fractions on the properties and microstructures of PVA-FG film; In addition, the pH color response and NH3 sensitivity of the PVA/FG-SNA composite film were monitored. Results: When the mass ratio of PVA-to-FG, heating temperature and time were 60∶40, 95 ℃, and 1.5 h, respectively. The water solubility and WVP of the PVA-FG film were (36.03±2.63)%, and 2.91×10-4 g·mm/(m2·h·Pa), separately. With the increment of SNA dosage, the thickness, moisture content, WVP, and EB of the PVA-FG film also increased. When the mass fraction of SNA was 0.2%, the thickness, moisture content, WVP, TS, and EB of the composite film were (0.07±0.01) mm, (11.09±0.25)%, 5.45×10-4 g·mm/(m2·h·Pa), (21.12±1.07) MPa, and (373.77±8.59)%, respectively. At the same time the composite film had good compatibility among its components. In addition, the PVA/FG-0.2% SNA film showed good color response under NH3 atmosphere conditions, which could be used as a pH-indicating film. Conclusion: This article optimized the water resistance of the PVA-FG composite base film. The hydrophobic and mechanical properties of the PVA-FG composite base film are negatively correlated with the amount of SNA dosage, and SNA can significantly enhance the pH and NH3 sensitivity of the film.

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欧阳澜澜,邓 娜,尹世鲜,等.聚乙烯醇—鱼明胶—龙葵花青素复合膜的制备、结构表征及性能分析[J].食品与机械,2024,40(4):90-99.
OUYANG Lanlan, DENG Na, YIN Shixian, et al. Preparation, structural characterization, and performance analysis of polyvinyl alcohol/fish gelatin/solanum nigrum anthocyanin composite film[J]. Food & Machinery,2024,40(4):90-99.

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  • 收稿日期:2024-02-14
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  • 在线发布日期: 2024-05-21
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