Structural diversity of sainfoin (Onobrychis viciifolia) tannins
Stringano, E., Gea, A., Cramer, R. , Hayes, W. and Mueller-Harvey, I. (2010) Structural diversity of sainfoin (Onobrychis viciifolia) tannins. In: 25th International Conference on Polyphenols, 24th - 27th August 2010, Montpellier, France.
Tannins are oligomeric and polymeric polyphenols that are produced by many plants. The study of their biological activities is of interest because they can generate valuable nutritional, veterinary and environmental effects in ruminant livestock production . Isolated tannin fractions from sainfoin (Onobrychis viciifolia), which is potentially a very useful animal feed, were characterised by MALDI-TOF MS and thiolytic degradation with benzyl mercaptan. Condensed tannins were analysed and characterised in more than different 40 sainfoin varieties to provide guidelines for future plant breeding programmes. Several different techniques were used to study these complex tannin mixtures.