水性ZIF-8纳米颗粒加载在奇托上,以改善发酵葡萄酒中的甲醇吸附
Mibin Lin1, Jia Sha1, Zhonghao Zhu1
1School of Food Science and Engineering, South China University of Technology, Guangzhou, China.
Journal of food science
|September 27, 2024
概括
一种新的基托基吸附剂 (CS@ZIF-8) 有效地从发酵葡萄酒中去除甲醇. 这种环保材料具有很高的吸附能力和出色的可回收性,为葡萄酒安全提供了有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 食品科学 食品科学 食品科学
背景情况:
- 金属有机框架 (MOFs) 具有吸附挥发性酒精的潜力,但在粉末形式的回收和分离问题很差,限制了它们在发酵饮料中的使用.
- 素 (CS) 是一种可生物降解和可塑性聚合物,在食品工业中广泛使用,并为开发先进吸附剂提供了合适的矩阵.
研究的目的:
- 为了合成和表征一种新的奇多-CS@ZIF-8复合吸收剂,以有效地从发酵葡萄酒中去除甲醇.
- 研究甲醇的CS@ZIF-8吸附剂的吸附机制,容量,动力学和可回收性.
主要方法:
- 合成CS@ZIF-8珠子,将ZIF-8纳入基托矩阵.
- 使用X射线光电子光谱,吸附异热和动力学研究进行了表征.
- 在使用中国黄酒的批量和列过实验中评估甲醇吸附能力,机制和可回收性.
主要成果:
- 合成的CS@ZIF-8珠子表现出高表面积和对甲醇吸附的强烈亲和力.
- 根据Langmuir模型预测和伪二阶动力学,甲醇的最大吸附能力被确定为56.8 mg/g.
- 该吸附剂在五个循环中表现出极好的可回收性,并有效降低了经处理的黄葡萄酒中甲醇度低于50 mg/L.
结论:
- 新的CS@ZIF-8吸附剂提供了一种高效和可回收的解决方案,用于从发酵葡萄酒中去除甲醇.
- 这种复合材料是一种实用且环保的方法,通过控制甲醇含量来提高发酵饮料的安全性.
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