A comparative untargeted metabolomic analysis and assessment of antiplasmodial potential of nine Albizia species
Abstract
The genus Albizia is one of the richest genera in phenolics besides other classes of secondary metabolites including saponins, terpenes, and alkaloids with promising medicinal applications. In the current study, UHPLC‐PDA‐ESI‐MS/MS‐based metabolic profiling of leaves of Albizia lebbeck, Albizia julibrissin, Albizia odoratissima, Albizia procera, Albizia anthelmintica, Albizia guachapele, Albizia myriophylla, Albizia richardiana, and Albizia lucidior resulted in the tentative identification of 64 metabolites, mainly flavonoids, phenolic acids, saponins, and alkaloids. Some metabolites were identified in Albizia for the first time and could be used as species‐specific chemotaxonomic markers, including: apigenin 7‐O‐dihydroferuloyl hexoside isomers, apigenin 7‐O‐pentosyl hexoside, quercetin 3‐O‐rutinoside 7‐O‐deoxyhexoside, quercetin 3,7‐di‐O‐hexoside deoxyhexoside, quercetin 7‐O‐feruloyl hexoside, methyl myricetin 7‐O‐deoxyhexoside, kaempferol di‐3‐O‐di‐deoxyhexoside‐7‐O‐hexoside, and kaempferol 3‐O‐neohesperidoside 7‐O‐hexoside. Comparative untargeted metabolomic analysis was undertaken to discriminate between species and provide a chemotaxonomic clue that can be used together with morphological and genetic analyses for more accurate classification within this genus. Moreover, the in vitro antiplasmodial activity was assessed and correlated to the metabolic profile of selected species. This was followed by a molecular docking study and absorption, distribution, metabolism,…
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