合成,表征和抗菌应用卡拉基/TiO2复合材料的复合材料
Emanuel Dotto Majinyari1, Somit Kumar Singh1
1Department of Chemistry, College of Natural and Mathematical Sciences, The University of Dodoma, P.O Box 259, Dodoma, Tanzania.
International journal of biological macromolecules
|January 11, 2025
概括
一种新的卡拉基/二氧化 (TiO2) 纳米复合物被合成,用于增强食品保存. 该材料对大肠杆菌和黄金杆菌具有显著的抗菌活性,表明其作为食品添加剂的潜力.
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:
- 由于其独特的特性,二氧化 (TiO2) 在各种应用中被广泛使用.
- 卡拉基南是一种天然的多糖,具有作为生物材料的潜力.
- 开发新的纳米复合材料可以带来先进的功能材料.
研究的目的:
- 为了合成和描述一个卡拉基/TiO2纳米复合材料.
- 为了评估合成的纳米复合材料的抗菌疗效.
- 探索其作为食品添加剂的潜在应用.
主要方法:
- 索尔凝合成,然后在450°C和650°C进行化.
- 使用FTIR,XRD,SEM,EDX,TEM,BET和TGA进行表征.
- 对大肠杆菌和黄金杆菌的抗菌活性测试.
主要成果:
- 一种具有高度结晶性解剖酶/性混合相卡拉基安/TiO2纳米复合物,具有较大的表面积,已成功合成.
- FTIR证实了C-Ti-O键的形成,而XRD表明了TiO2两个阶段的存在.
- 在650°C烧焦的复合材料显著抑制了大肠杆菌 (93%) 和金黄色细菌 (82%).
结论:
- 卡拉/TiO2复合物的抗菌活性与其晶体结构,多孔性,表面积和颗粒大小有关.
- 合成的纳米复合材料显示出作为一种食品添加剂的承诺,可以抑制细菌生长并延长食品的保质期.
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