Direct and interference-free determination of thirteen phenolic compounds in red wines using a chemometrics-assisted HPLC-DAD strategy for authentication of vintage year

Abstract

A chemometrics-assisted HPLC-DAD strategy is applied for direct determination of phenolic compounds in wines and authentication of vintage year.

Geographical traceability of Chinese green tea using stable isotope and multi‐element chemometrics

“…where δ sample represents the δ 13 fluid and heated to 60°C in a Mars 5 microwave oven (CEM Co., Charlotte, NC, USA) using temperature control mode for 40 min.…”

“…10 Recently, various chemical analytical strategies based on chromatographic and spectral analysis methods have been developed for determining geographical origin and applied to a range of agro-products, e.g. wine, [11][12][13] cereals, [14][15][16][17] honey, 18 coffee beans, 19 oil, 20 and cocoa beans. 21 However, when applied to tea, these strategies are mostly useful for the discrimination of tea from geographically distinct countries (e.g.…”

“…[24][25][26][27] Soil characteristics (expressed as trace element content and isotope ratio: K, Mg, Zn, Cd, 87 Sr/ 86 Sr and 206 Pb/ 207 Pb, etc. ), environmental and climatic variables ( 2 H/ 1 H, 18 O/ 16 O and 13 C/ 12 C ratios) and local agricultural practices ( 15 N/ 14 N ratios) are assimilated by the plant, and can be simultaneously used to measure external influences related to the geographical origin. [28][29][30] The origin and traceability of tea are more accurately described by the close relationships of stable isotope ratios and multi-element compositions influenced not only by the soil chemistry, but also the entire ecological system including cultivation practices.…”

High-Order Calibration and Data Analysis in Chromatography

“…Pharmaceuticals HPLC-DAD ATLD Puerarin, daidzin, and daidzein [34] HPLC-DAD ATLD Costunolide and dehydrocostuslactone [35] HPLC-DAD ATLD, SWATLD, AFR Isoniazid and pyrazinamide [36] Biological matrices HPLC-DAD ATLD Eleven antihypertensives [37] HPLC-DAD ATLD Four tyrosine kinase inhibitors [38] LC-MS ATLD Ten β-blockers [40] LC-MS ATLD Six antidiabetic agents [48] HPLC-DAD ATLD Five vinca alkaloids [39] Foods HPLC-DAD PARAFAC, ATLD, SWATLD Sudan I and Sudan II [49] HPLC-DAD ATLD Six synthetic colorants [1] HPLC-DAD APTLD Synthetic phenolic antioxidants [9] HPLC-DAD ATLD,PCA Eight coeluted compounds in tea [7] HPLC-DAD ATLD Eight flavonoids [42] HPLC-DAD ATLD nine polyphenols [43] HPLC-DAD ATLD Twelve quinolones [44] HPLC-DAD ATLD, PCA-LDA Thirteen phenolic compounds [45] HPLC-DAD ATLD Twelve polyphenols [46] LC-MS ATLD Ten mycotoxins [47] Environmental matrices HPLC-DAD SWATLD Three pre-emergence herbicides [ Propolis is a naturally occurring resinous hive product gathered by worker honeybees from buds and barks of different plant species. Sun et al developed a fast analytical strategy by combining HPLC-DAD with ATLD algorithm for simultaneous determination of eight flavonoids in propolis capsule samples [42].…”

“…Wine phenolic compounds, as secondary metabolites and functional components, determine the important sensorial characteristics of wines, such as mouth-feel, fragrance, and color. The combination of HPLC-DAD and second-order calibration method based on ATLD has been used for the determination of 13 phenolic compounds in red wines, and linear discriminant analysis (PCA-LDA) was applied for distinguishing wines aged for years [45]. Similarly, the same strategy was carried out by Wang et al for simultaneously quantify 12 polyphenols in different kinds of apple peel and pulp samples [46].…”