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Stilbenes in and . | LitMetric

Stilbenes in and .

Molecules

Department of Experimental and Functional Morphology, Institute of Botany, Czech Academy of Sciences, Dukelská 135, 379 01 Třeboň, Czech Republic.

Published: August 2024

Stilbenes in the roots of and were studied. Root samples were extracted with 100% methanol and analyzed by HPLC and LC-MS. In this way, -resveratrol dimers (/ 455 Da [M + H]), trimers (/ 681 Da [M + H]) and tetramers (/ 907 Da [M + H]) were identified in the extracts. Using LC-NMR in stop-flow mode, pallidol and -ε-viniferin as dimers were identified. After the separation of individual peaks and their measurement by H NMR, and -miyabenol A as a tetramer and -miyabenol C as a trimer were identified. In the case of miyabenol A, it is a chromatographically inseparable mixture of and isomers in the ratio of 2:3 according to H NMR measurement. In the case of -miyabenol C, the -miyabenol C configuration was confirmed. The remaining unidentified peak with a practically identical UV-VIS spectrum to that of -miyabenol C is most likely another isomer of miyabenol C.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11357264PMC
http://dx.doi.org/10.3390/molecules29163840DOI Listing

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