title: (1S,2R,4S,5S)-angelicoidenol-2-o-β-D-glucopyranoside-A moose deterrent compound in Scots pine (Pinus sylvestris L.).
abstract: Hydrophilic extracts of Scots pine (Pinus sylvestris L.) twigs have been investigated for palatability to moose in feeding experiments. The predominant repellent effect was observed from the 2-O-β-D-glucopyranoside of the monoterpene (1S,2R,4S,5S)-angelicoidenol. Of other isolated and tested substances, only taxifolin-3'-O-β-D-glucopyranoside had a deterring effect. One fraction-containing mainly aliphatic compounds-also had a strong effect, but the effect was lost after further fractionation. Tannin-containing fractions had no effect. Angelicoidenol glucoside has not previously been reported fromP. sylvestris. The results are discussed in view of phenols as defense compounds.
authors.affiliation: Department of Chemistry, Swedish University of Agricultural Sciences, P.O. Box 7015, S-750 07, Uppsala, Sweden.
authors.forename: K
authors.initials: K
authors.lastname: Sunnerheim-Sjöberg