Figure 4

Comparison of the extraction yields for prenylquinones with the five selected solvents. A. γ-tocopherol. B. α-tocopherol. C. Phylloquinone. D. Plastoquinone-9, oxidized (PQ) and reduced (PQH₂) forms. E. Plastochromanol-8. F. Ubiquinone-9, oxidized (UQ) and reduced (UQH₂) forms. Plants exposed to high light were pooled and lipids were extracted using the indicated solvents. Data are from 4 replicates (± SD). For PQ-9 (D) and UQ-9 (F) the ability to maintain the redox state was also evaluated.