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A comprehensive analytical characterization of botanical extracts can be difficult due to their complexity, dynamic range, and limited availability of constituent standards. By using ashwagandha root extract as a case study, this work showcases how to characterize a botanical extract utilizing an analytical system with multiple detectors to support the development of toxicological tools for evaluating botanicals. The platform incorporated ultra-high-performance liquid chromatography (UHPLC) coupled with photodiode array (PDA) detection, charged aerosol detection (CAD), and high-resolution mass spectrometry (HRMS) detection to generate a detailed chemical profile. This multi-detector platform enabled both semi-quantification and the identification of the majority of constituents, ensuring accurate chemical analysis while compensating for potential detector biases. The approach provided a thorough fingerprint of the ashwagandha extract, enabling authentication of the material. The generation of a comprehensive fingerprint supports in silico modeling and bioassay-based toxicological evaluations of botanicals, particularly in the context of dietary supplement safety. This study demonstrated the utility of detailed chemical analysis supporting the authenticity of ashwagandha root extract and the advancement of tools needed for robust safety assessments of botanical products by providing the semi-quantification and identification of over 60 constituents in ashwagandha extracts.
Sica et al. (Tue,) studied this question.
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