Abstract
The chain length and geometric isomerism of polyprenols from Eucommia ulmoides Oliver were analyzed using supercritical fluid chromatography. After intensive effort to establish separation conditions for geometric isomers, a phenyl-bonded silica gel-packed column was found that cleanly separated poly-trans and-cis prenols. The presence of longchain poly-trans prenols (>9 mers) was confirmed for the first time in plants. Trans isomers were found in the leaf, seed coat, and root, but not in the bark and seed. Poly-trans prenols in this plant may act as intermediates for trans-polyisoprene biosynthesis.
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Abbreviations
- HPLC:
-
high-performance liquid chromatography
- IPP:
-
isopentenyl pyrophosphate
- MS:
-
mass spectrometry
- NMR:
-
nuclear magnetic resonance
- SFC:
-
supercritical fluid chromatography
- UV:
-
ultraviolet
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Bamba, T., Fukusaki, Ei., Kajivama, Si. et al. The occurrence of geometric polyprenol isomers in the rubber-producing plant, Eucommia ulmoides oliver. Lipids 36, 727–732 (2001). https://doi.org/10.1007/s11745-001-0778-5
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DOI: https://doi.org/10.1007/s11745-001-0778-5