Characterization and classification of seven Citrus herbs by liquid chromatography–quadrupole time-of-flight mass spectrometry and genetic algorithm optimized support vector machines

A direct ionization mass spectrometry-based approach for differentiation of medicinal Ephedra species

“…Recently, the combination of MS-based fingerprinting and multivariate analysis has been employed successfully to distinguish herbs of different origins [20][21][22][23]. In this study, the aim of applying multivariate statistical methods to the analysis of DI-MS features was to identify and classify the three medicinal Ephedra species of Ephedrae Herba.…”

Characterization and discrimination of steroidal saponins in Tribulus terrestris L. and its three different aerial parts by chemical profiling with chemometrics analysis

“…Recently, UHPLC coupled with high‐resolution mass spectrometry, like Q‐TOF‐MS, has become a powerful analytical tool for rapid profiling of metabolites in TCM . Partial least squares discriminant analysis (PLS‐DA) coupled with support vector machines (SVM) have been successfully applied for discrimination and prediction of closely related herbal species . For example, Chen et al.…”

Deep Eutectic Solvents: An Overview of its Application as a “Green” Extractant

“…For instance, choline chloride (vitamin B 4 ) is non-toxic which is one of the most widely used components of DES and is approved by the European Food Safety Authority either as an additive in chicken feed as well an essential micronutrient and human nutrients [29,30]. 3 Use of renewable feedstock The components of DES are generally obtained from inexpensive and renewable materials e.g. quaternary ammonium salts are readily available.…”

“…The current trends widely employed for the extraction of phytochemical and bioactive constituents from plant materials involves the use of volatile organic solvents [3,4]. However, most of these conventional solvents used in the extraction of plant extracts are associated with high quantity of solvent utilization with long extraction times [5], they produce unacceptable residues in extract [6], highly volatile and therefore ends up in the atmosphere or in ground water [7][8][9][10][11][12] which results in environmental pollution.…”