通过{002}/{011}调节糖的面积比,在抗溶剂结晶中的首选方向
Qiaoyan Xu1,2, Zhoulin Lv3, Xiaoping Chen1,2
1Fujian Engineering Research Center of Advanced Manufacturing Technology for Fine Chemicals, College of Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China.
ACS omega
|November 16, 2023
概括
使用异酸 (IVA) 的抗溶剂结晶 (ASC) 通过降低面积比和提高稳定性,显著改善了糖质量. 这种方法为高质量的糖高效生产提供了一条新的途径.
科学领域:
- 食品化学 食品化学
- 结晶科学 结晶科学
- 材料科学 材料科学 材料科学
背景情况:
- 糖的质量受到酒精分析过程中面比调制的显著影响.
- 目前用于分离糖的方法需要优化,以改善产品特性.
研究的目的:
- 调查抗溶剂结晶 (ASC) 对糖性质的影响.
- 调节糖面积比,可溶性和稳定性同时.
- 为了确定优质的糖生产的最佳抗溶剂.
主要方法:
- 使用抗溶剂结晶 (ASC) 在酒精分析后进行糖分离.
- 四种抗溶剂进行了选:异醇 (IPN),异甲 (IVD),异酸 (IVA) 和异丁酸 (IBP).
- 确定单晶结构以分析分子相互作用和生长模式.
主要成果:
- 作为抗溶剂的异酸 (IVA) 产生了最高的分离效率 (49.33%) 和最快的结晶率 (5.64%/h).
- 在IVA中,糖的面比 (1.55) 和溶解率 (9.28重量%) 较低,热稳定性良好 (131.65°C).
- IVA促进了分子扭曲和强大的C-H···Cl键,导致更好的晶体生长和更好的稳定性.
结论:
- 与IVA一起的ASC有效地同时调节糖的面积比,溶解度和稳定性.
- 强烈的甲醇···IVA相互作用加速乳液形成,增加结晶率.
- 这项研究提供了一个理论框架,用于生产高质量的糖,使用量身定制的抗溶剂结晶.
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