Inspired by the emergence of natural deep eutectic solvents (DESs), we herein used thermogravimetry and pyrolysis-gas chromatography/mass spectrometry to probe the influence of six DESs (hydrogen bond acceptor = choline chloride, betaine, or l-proline; hydrogen bond donor = glycerol, 1,4-butanediol, or propylene glycol) on the release of volatiles from tobacco at 300 °C. DES treatment induced a 3.5–4.6% increase in second-stage weight loss and promoted the release of 28 aroma constituents (furans, aldehydes, ketones, and organic acids). Treatment with choline chloride-glycerol-propylene glycol increased the relative contents of the released 5-hydroxymethylfurfural and megastigmatrienone by factors of 1.2 and 3.6, respectively, whereas treatment with l-proline-glycerol promoted the release of 2,3-dihydro-3,5-dihydroxy-6-methyl-(4H)-pyran-4-one. Therefore, DES treatment facilitated the release of volatiles from tobacco powder and was inferred to be promising for the development of novel cigarette constituents.

受天然低共熔溶剂 (DESs) 的启发，我们在此使用热重法和热解-气相色谱/质谱法来探测六种 DESs（氢键受体 = 氯化胆碱、甜菜碱或l-脯氨酸；氢键供体）的影响 = 甘油、1,4-丁二醇或丙二醇）在 300 °C 时对烟草挥发物释放的影响。DES 处理使第二阶段体重减轻增加了 3.5-4.6%，并促进了 28 种香气成分（呋喃、醛、酮和有机酸）的释放。用氯化胆碱-甘油-丙二醇处理使释放的 5-羟甲基糠醛和巨豆三烯酮的相对含量分别增加了 1.2 和 3.6 倍，而用l-脯氨酸-甘油促进2,3-二氢-3,5-二羟基-6-甲基-(4 H )-吡喃-4-酮的释放。因此，DES 处理促进了烟草粉末中挥发物的释放，并被推断有希望开发新型卷烟成分。