綿実種子の成熟過程におけるステロ-ル量および組成の変動について

概要

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Compositional and quantitative changes in sterols were investigated in cotton-seed lipids and seeds from 3 to 70 days after flowering. The methods used included preparative thin-layer chromatography followed by gas chromatography with cholesterol as an internal standard. The weight of the cotton seeds increased rapidly until 20 days after flowering, and lipids accumulated at a steady rate up to 40 days after flowering. The cotton seeds matured at 70 days after flowering. The highest concentration of unsaponifiable matter and 4-demethylsterol in lipids was found at an early stage after flowering, but the contents then decreased steadily. The percentages of campe-, and stigma-, and β-sitosterol in 4-demethylsterols were 5.0, 0.7 and 94.3, respectively, in mature seed lipids. The 4-demethylsterol content in seeds increased rapidly with increasing amounts of seed lipids.
社団法人日本農芸化学会の論文