Table 1. Concentrations of four main lignans and stilbenoids in pine knot extract (PKE) and composition of lignan-stilbenoid (LS) mixture.
Polyphenol | PKE | PKE (40 mg/l) | LS mixture (40 μM) |
(w/w %) | (μM) | (μM) | |
Methylpinosylvin | 10 | 20 | 21.4 |
Nortrachelogenin | 7 | 7 | 6.8 |
Pinosylvin | 4 | 10 | 9.6 |
Matairesinol | 1.5 | 2 | 2.2 |