生物复合薄膜基于与氧化相结合的甲基基:合成和抗菌活性
Sarinthip Thanakkasaranee1,2, Pornchai Rachtanapun1,2, Chitsiri Rachtanapun3,4
1Division of Packaging Technology, School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, Thailand.
Polymers
|September 14, 2024
概括
使用氧化 (CaO) 纳米粒子开发了环保的碳氧甲基基 (CMCH) 生物复合膜. 这些功能薄膜具有增强的机械,疏水和显著的抗微生物特性,非常适合活性食品包装应用.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 食品科学 食品科学 食品科学
背景情况:
- 像酸盐这样的生物聚合物对可持续材料充满希望.
- 结合抗菌剂可以增强功能性质.
- 开发活性食品包装对于食品安全和保质期至关重要.
研究的目的:
- 为了研究氧化 (CaO) 对甲基基 (CMCH) 生物复合材料薄膜的影响.
- 评估CMCH-CaO薄膜的形态,机械,热和水友性质.
- 评估这些生物复合材料薄膜对常见的食源性病原体的抗菌疗效.
主要方法:
- 碳氧甲基基 (CMCH) 是通过基的碳氧甲基化合成的.
- 氧化 (CaO) 纳米颗粒通过与聚乙烯糖醇的共同沉合成.
- 使用溶液造方法制成的CMCH-CaO生物复合材料薄膜.
- 鉴定包括XRD,SEM,机械测试,热分析和抗菌检测.
主要成果:
- 合成的CaO纳米颗粒呈现出立方形状 (平均尺寸为25.84nm) 和高固有的抗菌活性 (>99.9%R对大肠杆菌和金黄色杆菌).
- 将CaO纳入CMCH提高了膜的机械强度和疏水性.
- CMCH-CaO薄膜显示热稳定性略有下降.
- CMCH-CaO10%膜显示出显著的抗微生物活性 (98.8%R对大肠杆菌,91.8%R对黄金菌).
结论:
- CMCH-CaO生物复合材料薄膜具有增强的性能,适用于活性食品包装.
- 开发的薄膜为延长易腐食品的保质期提供了一个可持续的解决方案.
- 进一步的研究可以优化CaO含量,以获得最大的有效性和稳定性.
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