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借助热力学见解探索绿色溶剂体系及呫吨酮在基于甘油三酯的三癸酸甘油酯 - 三辛酸甘油酯混合物中的溶解度增强情况。

Exploring green solvent systems and enhanced solubility of xanthone in triglyceride-based tricaprin-tricaprylin mixtures with thermodynamic insights.

作者信息

Liu Hua, Stanslas Johnson, Ren Jiaoyan, Suleiman Norhidayah Binti, Chong Gun Hean

机构信息

Food Science and Technology, Universiti Putra Malaysia, 43400, Serdang, Malaysia.

Guangzhou College of Technology and Business, GuangZhou, 510850, China.

出版信息

BMC Chem. 2024 Dec 4;18(1):239. doi: 10.1186/s13065-024-01329-6.

DOI:10.1186/s13065-024-01329-6
PMID:39633458
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11619629/
Abstract

This study explores the use of green solvent systems by investigating the solubility and thermodynamic properties of xanthone (1) in triglyceride-based tricaprin (2) and tricaprylin (3) mixtures, aiming to replace traditional organic solvents. The solubility profile exhibited a concave trend, and the highest solubility was observed at a solute-free fraction (x) of 0.36. The solubility exponentially increased with increasing temperature in the range from 30 °C to 75 °C. The solubility data were effectively correlated using the local composition-regular solution theory (LC-RST) model and achieved an ARDln value of 4.8 × 10. The model indicated strong interactions between tricaprin and tricaprylin, followed by interactions between tricaprylin and xanthone and between tricaprin and xanthone. The dissolution process of xanthone was primarily enthalpy driven. Based on the structural analysis, xanthone maintained its molecular structure after dissolution in tricaprin and tricaprylin; however, changes in crystallinity levels were observed. These findings provide insights into the use of triglycerides as solvents to improve the solubility and bioaccessibility of hydrophobic compounds such as xanthone.

摘要

本研究通过研究呫吨酮（1）在基于甘油三酯的三癸酸甘油酯（2）和三辛酸甘油酯（3）混合物中的溶解度和热力学性质，探索绿色溶剂体系的使用，旨在取代传统有机溶剂。溶解度曲线呈现出凹形趋势，在溶质自由分数（x）为0.36时观察到最高溶解度。在30℃至75℃范围内，溶解度随温度升高呈指数增加。使用局部组成-正规溶液理论（LC-RST）模型有效地关联了溶解度数据，获得的ARDln值为4.8×10。该模型表明三癸酸甘油酯和三辛酸甘油酯之间存在强相互作用，其次是三辛酸甘油酯与呫吨酮之间以及三癸酸甘油酯与呫吨酮之间存在相互作用。呫吨酮的溶解过程主要由焓驱动。基于结构分析，呫吨酮在溶解于三癸酸甘油酯和三辛酸甘油酯后保持其分子结构；然而，观察到结晶度水平发生了变化。这些发现为使用甘油三酯作为溶剂来提高呫吨酮等疏水性化合物的溶解度和生物可及性提供了见解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6390/11619629/c394841b711f/13065_2024_1329_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6390/11619629/ab35bc482ece/13065_2024_1329_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6390/11619629/0bbb0d4b3fa8/13065_2024_1329_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6390/11619629/62b2019e14bf/13065_2024_1329_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6390/11619629/c394841b711f/13065_2024_1329_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6390/11619629/ab35bc482ece/13065_2024_1329_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6390/11619629/0bbb0d4b3fa8/13065_2024_1329_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6390/11619629/62b2019e14bf/13065_2024_1329_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6390/11619629/c394841b711f/13065_2024_1329_Fig5_HTML.jpg

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