Epicuticular wax of Panicum virgatum |
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Authors: | Alexander P. Tulloch Leslie L. Hoffman |
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Affiliation: | National Research Council of Canada, Prairie Regional Laboratory, Saskatoon, Saskatchewan, Canada S7N 0W9 |
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Abstract: | Leaf and stem wax of Panicum virgatum contains hydrocarbons (4%), esters (3%), free acids (2%), free alcohols (1%), triterpene alcohols (2%), β-diketones (69%) and hydroxy β-diketones (6%). Principal free alcohols range in chain length from C26 to C32. β-Diketones consist almost entirely of tritriacontane-12,14-dione and the hydroxy β-diketone consists only of 5(S)-5-hydroxytritriacontane-12,14-dione. The configuration of the hydroxyl group is the same as that of hydroxy β-diketones from festucoid grasses but opposite to that of the hydroxy β-diketone from Andropogon species. |
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Keywords: | Gramineae switchgrass epicuticular wax composition tritriacontane-12,14-dione |
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