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Chromatograms after HPLC of unsaponified carotenoid extracts from wild-type (a) and Llccs-transgenic (b) callus tissues of Iris germanica ‘Hot Property’. The peak of capsanthin (3) at 19 min in chromatogram (b) was identified from a comparison of its retention time and spectral properties with those of an authentic capsanthin standard. Peaks: (1) neoxanthin; (2) violaxanthin; (3) capsanthin; and (4) lutein.
