Characterization and comparison of predominant aroma compounds in microwave-treated wheat germ and evaluation of microwave radiation on stability was written by Zhang, Yukun;Tang, Ning;Shi, Lin;Miao, Yuxin;Liu, Xu;Ge, Xinhui;Cheng, Yongqiang;Zhang, Xiuqing. And the article was included in Journal of Cereal Science in 2020.Electric Literature of C6H10O2 This article mentions the following:
The present study was performed to evaluate the effects of microwave (MW) output power and treatment time on moisture content, lipase and lipoxygenase activities as well as color changes of wheat germ (WG). In addition, the key aroma compounds in different MW-power-treated WG, which is of importance to the flavor of WG products, were also investigated. The obtained results showed that MW treatment maintained the inherent color of WG and significantly reduced the moisture content (maximum reduction of 95%) and the activities of lipase and lipoxygenase (maximum reduction of 65% and 99%, resp.). In terms of aroma compounds, with the increase of the MW output power, the content of esters, alkanes, alcs. and acids decreased, while the content of heterocyclic compounds, nitrogen-containing compounds, aldehydes and ketones increased, providing more compounds with roasted flavor and less volatiles with grass-like flavor. Therefore, MW treatment was an effective stabilization method for WG utilization. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7Electric Literature of C6H10O2).
5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. 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.Electric Literature of C6H10O2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics