Multinuclear and multidimensional NMR spectroscopy was applied as a robust and rapid tool for the analysis of several classes of non-polar compounds in roasted coffee beans, coffee beverage and spent coffee grounds. In addition to various fatty acids, other compounds found in roasted coffee lipids, include oxidation and hydrolysis products, terpenes, sterols, and phospholipids. Spent coffee grounds have a similar fatty acid composition with roasted coffee beans and they are rich in Cafestol and Kawheol, which appear as esters of fatty acids. Triglycerides extracted from coffee waste using a green chemistry approach, based on supercritical CO2 extraction, are promising candidates for the production of bioplastics. Bioplastic precursors were produced using an in situ solvent-free epoxidation process and the reaction monitoring was performed using NMR spectroscopy.

中文翻译：

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焙炒咖啡脂质的NMR分析以及用于生产生物塑料前体的废磨咖啡粉应用的开发。

多核和多维NMR光谱技术是一种强大而快速的工具，可用于分析烘焙咖啡豆，咖啡饮料和咖啡渣中的几种非极性化合物。除各种脂肪酸外，在烘焙咖啡脂质中发现的其他化合物包括氧化和水解产物，萜烯，固醇和磷脂。用过的咖啡渣与烘焙过的咖啡豆具有相似的脂肪酸组成，并且富含咖啡因和Kawheol，它们以脂肪酸的酯形式出现。使用绿色化学方法从咖啡废料中提取的甘油三酸酯（基于超临界CO2提取）是生产生物塑料的有前途的候选者。