...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials science & engineering >Synthesis and preparation of responsive poly(Dimethyl acrylamide/gelatin and pomegranate extract) as a novel food packaging material
【24h】

Synthesis and preparation of responsive poly(Dimethyl acrylamide/gelatin and pomegranate extract) as a novel food packaging material

机译：响应性聚（二甲基丙烯酰胺/明胶和石榴提取物）的合成与制备作为一种新型食品包装材料

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this study a novel and smart multi-functional hydrogel (MFH) was synthesized from N, N dimethyl acrylamide (DMAAm), gelatin, citric acid (CA) and pomegranate extract (PE) for instant and easy monitoring of the color change in MFH due to changes in medium conditions such as pH and temperature. MFH was utilized as food packaging material, equipped with the developed properties. MFH was synthesized with a redox polymerization technique in film form on petri dishes. Mechanical and water resistance properties of MFH were improved by CA and N, N, methylenebisacrylamide, while PE was used to gain antimicrobial, antioxidant and anthocyanin properties. Fourier Transform Infrared Spectroscopy (FTIR), Thermogravimetric Analyzer (TGA), Liquid Chromatography-Mass Spectroscopy (LC-MS/MS) and Scanning Electron Microscopy (SEM) instruments were utilized for characterization of MPH. FTIR revealed the existence of bonding interactions between the functional group of PE and gelatin, carbonyl groups of DMAAm and carboxylic acid groups of CA. TGA results indicate that MFH was stable up to 400 degrees C. Then the response of total antioxidant and anthocyanin activities leading to the color change in MFH were studied at different pH values. The color change in MFH was monitored even at very small pH changes in the medium. Moreover, antimicrobial activity and stability of MFH were investigated when it was tested in harsh environments and against Escherichia colt, Bacillus subtilis and Staphylococcus aureus on real samples of whole pasteurized milk and cheese for a 7-day period. It exhibited remarkable antimicrobial activity with pasteurized whole milk and cheese. It was concluded that MFH is a very good candidate to be used as biodegradable food packaging material.
机译：在本研究中，通过N，N二甲基丙烯酰胺（DMAAM），明胶，柠檬酸（CA）和石榴提取物（PE）合成了一种新颖的和智能的多功能水凝胶（MFH），即时，并容易监测MFH中的颜色变化由于培养基和温度等中等条件的变化。 MFH用作食品包装材料，配备了开发的性能。用薄膜形式用氧化还原聚合技术合成MFH。通过Ca和N，N，亚甲基异丙酰胺改善MFH的机械和耐水性能，而PE用于获得抗微生物，抗氧化剂和花青素的性质。傅里叶变换红外光谱（FTIR），热重分析仪（TGA），液相色谱 - 质谱（LC-MS / MS）和扫描电子显微镜（SEM）仪器用于MPH的表征。 FTIR揭示了PE和明胶官能团之间的键合相互作用，DMAAM和CA的羧酸基团的羰基。 TGA结果表明，MFH稳定达400℃。然后在不同的pH值中研究了总抗氧化剂和通向MFH的颜色变化的抗氧化剂和花青素的响应。即使在培养基的非常小的pH变化下也监测MFH的颜色变化。此外，当在苛刻的环境中测试并反对大毒乳和奶酪的真正样品中，在恶劣环境中测试和对枯草芽孢杆菌和金黄色葡萄球菌进行了7天时，研究了MFH的抗微生物活性和稳定性。它表现出与巴氏杀菌的全牛奶和奶酪具有显着的抗微生物活性。得出结论，MFH是一种非常好的候选者，用作可生物降解的食品包装材料。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号