Stability and Photoisomerization of Stilbenes Isolated from the Bark of Norway Spruce Roots.

ABSTRACT: Stilbenes or stilbenoids, major polyphenolic compounds of the bark of Norway spruce (Picea abies L. Karst), have potential future applications as drugs, preservatives and other functional ingredients due to their antioxidative, antibacterial and antifungal properties. Stilbenes are photosensitive and UV and fluorescent light induce trans to cis isomerisation via intramolecular cyclization. So far, the characterizations of possible new compounds derived from trans-stilbenes under UV light exposure have been mainly tentative based only on UV or MS spectra without utilizing more detailed structural spectroscopy techniques such as NMR. The objective of this work was to study the stability of biologically interesting and readily available stilbenes such as astringin and isorhapontin and their a

SUBMITTER: Latva-Maenpaa H 

PROVIDER: S-EPMC7920084 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature