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Characterisation of Phenolic Constituents from Juvenile and Mature Needles of Norway Spruce by Means of High Performance Liquid Chromatography–Mass Spectrometry
Author(s) -
Slimestad Rune,
Hostettmann Kurt
Publication year - 1996
Publication title -
phytochemical analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 72
eISSN - 1099-1565
pISSN - 0958-0344
DOI - 10.1002/(sici)1099-1565(199601)7:1<42::aid-pca282>3.0.co;2-k
Subject(s) - chemistry , chromatography , mass spectrometry , juvenile , high performance liquid chromatography , biology , genetics
The novel flavonol laricitrin 3‐ O‐ (6″‐acetyl)‐glucoside has been characterized in needles of Norway spruce ( Picea abies ) together with quercetin 3‐ O ‐(6″‐acetyl)‐glucoside, the 3‐ O ‐glucoside and 3‐ O ‐rutinoside of syringetin, and 3′‐ O ‐caffeoyl‐quinic acid, all detected for the first time from this species. Further, taxifolin, coniferin and Z ‐astringin are unreported together with 24 other phenolics of different classes. Juvenile needles contain significant levels of several flavonols, whereas stilbenes and simple phenolics are predominant in mature needles. Only gallocatechin, catechin, p ‐hydroxyacetophenone and taxifolin appear without sugar units. Characterization of the compounds was performed using high performance liquid chromatographic retention times, masses from thermospray ionisation, and ultraviolet spectral data.