Correlation analysis between aroma components and microbial communities in Wuliangye-flavor raw liquor based on HS-SPME/LLME-GC-MS and PLFA was written by Wang, Qi;Liu, Kunyi;Liu, Linlin;Zheng, Jia;Chen, Tao;Chen, Fei;Li, Pingping;Zhang, Meng;Shen, Xiaojing. And the article was included in Food Research International in 2021.HPLC of Formula: 2198-61-0 The following contents are mentioned in the article:
As the main raw material for com. Wuliangye-flavor liquor, Wuliangye-flavor raw liquor (WFRL) plays an important role in the formation of flavor components. Aroma components and microbial community diversity of 4 WFRLs produced by the same fermenting cellar were investigated by headspace solid phase microextraction, liquid-liquid microextraction combined gas chromatog.-mass spectrometry and phospholipid fatty acid fingerprint method. Results indicated that a total of 75 aroma components were identified, including 39 esters, 11 alcs., 9 acids, 7 aldehyde, 5 ketones and 4 others, whereas esters were dominant for the samples (67.49%). Meanwhile, Gram-pos. bacteria (G+) and aerobe in the fermenting cellar increased gradually from top to bottom, compared with Gram-neg. bacteria (G-), anaerobe and fungi showed the opposite trend. Furthermore, 4 WFRLs could be distinguished according to 13 differential aroma components (VIP > 1, P < 0.05). Whereas, the differential aroma components were pos. correlated with G-, anaerobe and fungi, but neg. correlated with G+ and aerobe. In particular, 4 key esters including Et caproate, Et acetate, Et butyrate and Et lactate that determine the grade of WFRL were pos. correlated with anaerobe and fungi. Therefore, the results can be used as a reference to understand the correlation between aroma components and microbial communities in different quality grades of WFRL. This study involved multiple reactions and reactants, such as Isopentyl hexanoate (cas: 2198-61-0HPLC of Formula: 2198-61-0).
Isopentyl hexanoate (cas: 2198-61-0) 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. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.HPLC of Formula: 2198-61-0
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics