Analysis of volatile flavor compounds of γ-aminobutyric acid soybean paste was written by Li, Fu-xiao;Li, Dong-long;Wang, Hui-yi;Li, Qiu-feng;Liu, Ji-dong. And the article was included in Xiandai Shipin Keji in 2021.Synthetic Route of C10H20O2 This article mentions the following:
To evaluate the flavor difference between com. soybean paste and γ-aminobutyric acid (GABA) bean paste, headspace solid-phase microextraction (HS-SPME) and gas chromatog.-mass spectrometry (GC-MS) were used to measure and analyze the volatile components and the common indexes in nine com. soybean paste samples (S1-S9) and the GABA soybean paste sample (S10) . The key volatile components were determined by principal component anal. (PCA) and odor activity value (OAV) . The results showed that 144 compounds in eight categories were detected in 10 soybean paste samples and the content of γ-aminobutyric acid in S10 reached 1.87 mg/g, the pH value was 4.69, and the color was bright without impurities. Among them, esters, alcs. and acids accounted for more than 60% of the total volatile components. Addnl., the results of PCA of 41 common volatile substances were identified in 10 soybean paste samples, demonstrating that 2-methyl-butyraldehyde, 3-methyl-butyraldehyde, dimethyl-trisulfide and guaiacol significantly contributed to the flavor formation of bean paste. Besides, the GABA soybean paste has a rich variety of flavors, in which the contents of 2-pentylfuran, 2-ethyl-6-methylpyrazine, guaiacol and di-Me trisulfide (which exhibited aromas of mung bean, nut and clove) were significantly higher than other samples. This could be the reason for some differences in flavor substances between GABA soybean paste and other samples. The results of this study could provide theor. reference for the development of functional soybean paste and the flavor improvement in soybean paste products. In the experiment, the researchers used many compounds, for example, Isopentyl 3-methylbutanoate (cas: 659-70-1Synthetic Route of C10H20O2).
Isopentyl 3-methylbutanoate (cas: 659-70-1) 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. Polyesters are important plastics, with monomers linked by ester moieties. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Synthetic Route of C10H20O2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics