What is "pinoresinol"

n. (context organic compound English) A particular lignan found in several plant species

Pinoresinol is a lignan found in Styrax sp. and in Forsythia suspensa. It is also found in the caterpillar of the cabbage butterfly, Pieris rapae where it serves as a defence against ants.

In food, it is found in sesame seed, in Brassica vegetables and in olive oil.