藻酸盐增强的zwitterionic双网水凝具有机械强度和抗菌活性,用于淡水的腐蚀检测
Hongzhen Wang1, Shiqing Huang1, Xiaowen Xu1
1Key Laboratory of Product Packaging and Logistics, Packaging Engineering Institute, College of Packaging Engineering, Jinan University, Qianshan Road 206, Zhuhai 519070, Guangdong Province, China.
Food research international (Ottawa, Ont.)
|January 8, 2025
概括
这项研究引入了一种强大的zwitterionic双网水凝,用于检测食物腐烂. 它的优越机械强度和双灵敏指示器在智能包装中提供可靠的实时新鲜度监测.
科学领域:
- 材料科学 材料科学 材料科学
- 食品科学 食品科学 食品科学
- 生物技术是生物技术.
背景情况:
- 水凝指示器显示出对食品腐烂监测的希望,但由于机械性能差,限制了它们的实际应用.
- 现有的zwitterionic双网 (DN) 水凝在机械强度和耐用性方面具有局限性.
研究的目的:
- 开发一种具有增强机械性能的新型zwiterionic双网络 (DN) 水凝,用于监测食物腐烂.
- 创建一个双灵敏的水凝指示器,用于实时评估的新鲜度.
主要方法:
- 合成了一种使用阿里胺,硫贝甲基酸盐和酸盐-Ca2+系统的zwitterionic DN水凝.
- 评估机械性能 (延长,性,抗撕裂) 和特征粘合剂和抗菌能力.
- 开发了一种pH/NH3双灵敏的水凝指示器,使用红色和红紫色混合物监测的新鲜度.
主要成果:
- 这种新型的DN水凝实现了2087%的破裂延伸和135±12 kJ/m3的性,超过了当前的zwitterionic DN水凝.
- 证明了出色的抗疲劳,抗撕裂能力 (2200±180 J/m2),强大的粘附性和抗菌活性.
- 水凝指标显示了明显的颜色变化 (ΔE>80) 作为对腐烂的反应,在 ΔE 和 TVB-N (R2>0.98) 和 pH (R2>0.97) 之间有很强的相关性.
结论:
- 开发的zwitterionic DN水凝具有卓越的机械性能和双响应指示器功能.
- 这种水凝适用于智能包装的实时新鲜度监测,性能优于现有技术.
- 该材料为减少食物浪费和确保食品安全提供了一个有希望的解决方案.
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