Geographical Discrimination of Curcuma longa L. in Vietnam Based on LC-HRMS Metabolomics was written by Nguyen Thi, Kieu-Oanh;Do, Hoang-Giang;Duong, Ngoc-Tu;Nguyen, Tien Dat;Nguyen, Quang-Trung. And the article was included in Natural Product Communications in 2021.Reference of 33171-05-0 The following contents are mentioned in the article:
Curcuma longa L. has been used as a food, cosmetic, traditional medicine, and natural dye for a long time in tropical and subtropical regions such as India, China, and Vietnam. Curcuminoids are considered the main bioactive compounds in this plant. This study focuses on metabolites profiling of the rhizome methanolic extract of C longa samples collected in 6 different provinces in Vietnam using liquid chromatog. coupled with high-resolution mass spectrometry. The partial least-squares discriminant anal. model was then established to discriminate its metabolomes and identify the chemomarkers that help to distinguish C longa from 6 geog. locations. Consequently, collected samples were segregated into 3 main groups: northern (Lang Son, with typical content of 2 terpenoids), center (Nghe An), and southern highland (Lam Dong, with distinctive profile of 3 curcuminoids). The absolute curcuminoids’ amount was also measured based on the calibration curve of reference standards The differential metabolites including curcumin, demethoxycurcumin, and bisdemethoxycurcumin were found with the highest range in samples from Lang Son, indicating the excellent quality of turmeric cultivated in this area. This study involved multiple reactions and reactants, such as Bisdemethoxycurcumin (cas: 33171-05-0Reference of 33171-05-0).
Bisdemethoxycurcumin (cas: 33171-05-0) belongs to ethers. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. 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 33171-05-0
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem