落花生の未成熟および完熟種子脂質の脂肪酸組成

概要

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Fatty acid compositions of triglyceride and compound lipids from peanut seeds at 15, 20 (immature) and 80 (mature) days after gynophore earthing were analyzed by gas chromatography. The gas chromatographic analysis was achieved by utilizing two polar polyester columns to vary the relative retention time of methyl linolenate to that of methyl arachidate. The results obtained were as follows. Same kinds of fatty acids were located in triglyceride and compound lipids, but the long-chain fatty acids containing 20 or more carbon atoms were mainly concentrated in the former. Major fatty acid compositions of both lipids were similar in the early stage of seed developing, especially linolenic acid content being 21.2 mole % in them at 15 days after gynophore earthing. At maturity, linolenic acid was not detected in triglyceride, whereas the content of this acid in compound lipids was 2.4 mole %.
社団法人日本農芸化学会の論文