Anthraquinone Residues in Dried Walnut (Juglans regia) Leaves for Herbal Infusions: Proof of Endogenous Origin via a Sampling-Driven and GC-MS/MS-Based Strategy

URN to cite this document:: urn:nbn:de:bvb:355-epub-746478
DOI to cite this document:: 10.5283/epub.74647

Ferrando Plo, Lucas

; Nitsopoulos, Athanasios ; Friedle, Albrecht ; Schmidberger, Andreas ; Heilmann, Jörg

License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 14 Jan 2025 07:32

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Abstract

Anthraquinone residues in tea have been linked to atmospheric deposition. However, anthraquinones can also be biosynthesized in plants. In this work, we report on a sample-driven and GC-MS/MS-based analytical strategy to differentiate between endogenous and exogenous anthraquinones in dried walnut (Juglans regia) leaves. Anthraquinone and seven of its derivatives were quantified in 9 dried and ...