Aroma characterization and their changes during the processing of black teas from the cultivar, Camellia sinensis (L.) O. Kuntze cv. Jinmudan was written by Li, Junyao;Hao, Changhong;Jia, Huiyan;Zhang, Jing;Wu, Huiting;Ning, Jingming;Wang, Rangjian;Deng, Wei-Wei. And the article was included in Journal of Food Composition and Analysis in 2022.Reference of 695-06-7 This article mentions the following:
Jinmudan (JMD) black tea is processed from the JMD cultivar (Camellia sinensis (L.) O. Kuntze cv. Jinmudan). Dried JMD black tea (JMD-D) received a score of 7.43 in the quant. descriptive anal., indicating that it had the strongest fruity flavor. Many volatile compounds (129) were identified by solvent assisted flavor evaporation and gas chromatograph mass spectrometry. In total, 26 aroma active compounds, including (Z)-Me epi-jasmonate (flavor dilution factor (FD): 128-1024), benzeneacetaldehyde (FD: 512-1024), linalool (FD: 256-1024), geraniol (FD: 256-512), jasmine lactone (FD: 64-1024), were identified in JMD-D and controls through an aroma extract dilution anal. and gas chromatog.-mass spectrometry olfactometry. On the basis of the FD values, odor activity values, and relative quantification results, the volatiles of fruit flavor derived from lipids, such as jasmine lactone, were prominent in JMD-D compared to the controls. During the processing of the four types of black tea, the volatile fraction concentration increased mainly from the fresh leaf to the fermentation stage and decreased in the drying stage. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7Reference of 695-06-7).
5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Reference of 695-06-7
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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics