Fig 4. Comparison of the production of (A) pinoresinol and (B) sesamin in U18i-CPi-Fk cells under the dark, white, blue, and red continuous light conditions.

Lignans were quantified separately for each sample after a culture period of two weeks in the same medium. Data are presented as the average of three independent experiments (mean ± S.E.M., P < 0.05).