Abstract
For the first time, curcuminoids known for their antioxidant and sunscreen properties were used for photoprotection of lignocellulosics. It was shown that complex between copper(II) and non-substituted curcumin 2, displaying remarkable photostability in ethyl acetate/ethanol solution, is able to photostabilize in some extend α-carbonyl β-O-4 lignin model and more efficiently spruce wood.
Zusammenfassung
Zum ersten Mal wurde Curcumin, das für seine antioxidante und sonnenschützende Wirkung bekannt ist, für den Lichtschutz von Lignin-Cellulosen eingesetzt. Es wurde gezeigt, dass der Kupfer(II)-Komplex mit einem unsubstituierten Curcumin 2, das in einer Lösung aus Ethylacetat/Ethanol über eine bemerkenswerte Photostabilität verfügt, die Fähigkeit besitzt, α-Carbonyl β-O-4 Lignin-Moleküle und noch effizienter Fichtenholz gegen Lichtabbau zu stabilisieren.
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Sundaryono, A., Nourmamode, A., Gardrat, C. et al. Attempt to protect wood using copper(II) complex with 1,7-diphenyl-1,6-heptadiene-3,5-dione, a non-phenolic curcuminoid. Holz Roh Werkst 61, 377–381 (2003). https://doi.org/10.1007/s00107-003-0401-x
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DOI: https://doi.org/10.1007/s00107-003-0401-x