Differentiation and classification of Chinese Luzhou-flavor liquors with different geographical origins based on fingerprint and chemometric analysis was written by Qian, Yu;Zhang, Liang;Sun, Yue;Tang, Yongqing;Li, Dan;Zhang, Huaishan;Yuan, Siqi;Li, Jinsong. And the article was included in Journal of Food Science in 2021.Safety of 5-Ethyldihydrofuran-2(3H)-one This article mentions the following:
In order to differentiate and characterize Chinese Luzhou-flavor liquor according to geog. origins, the volatile flavor compounds were analyzed for forty com. Luzhou-flavor liquor samples from Sichuan, Jiangsu, and Hubei provinces. A total of 113 volatile flavor compounds were quantified; among them, 29 flavor compounds were quantified according to the internal standard method. The differences in flavor composition among different brands of Luzhou-flavor liquor were compared. A data matrix of 64 (flavor components) × 40 (samples) was studied and interpreted using chemometric anal. The research object could be naturally clustered according to geog. origin (brand) based on the hierarchical cluster anal. (HCA), principal component anal. (PCA) and multivariate anal. of variance (MANOVA) methods. A 100% of predication ability was obtained by the application of K-nearest neighbor model (KNN) for study sample classification. The results demonstrate that the abundance of volatile flavor components in liquors combined with appropriate multivariate statistical methods could be used for the division and traceability of liquors from different geog. origins. This study can provide the basis for the identification of liquor authenticity and the traceability of liquor. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7Safety of 5-Ethyldihydrofuran-2(3H)-one).
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. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Safety of 5-Ethyldihydrofuran-2(3H)-one
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics