Biogenesis of nonacosan-15-one in brassica oleracea |
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Authors: | P E Kolattukudy R H Jaeger and R Robinson |
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Institution: | Department of Agricultural Chemistry, Washington State University, Pullman, Washington, U.S.A. Shell Research Limited, Egham, Surrey England |
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Abstract: | The incorporation of 4-14C]4-oxostearic acid, 4-14C]stearic acid, and 1-14C]eicosanoic acid, respectively, into the nonacosan-15-one of Brassica oleracea has been investigated. While the oxo-acid was found to be a poor precursor of nonacosan-15-one, the two n-fatty acids were efficiently incorporated as intact units into n-nonacosane and the related 15-ketone. In accordance with expectation, the label in the 4-position of stearic acid appeared in the carbonyl carbon of the ketone. These results suggest that the C29 hydrocarbon is first formed and subsequently oxidized to nonacosan-15-one. |
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