界面活性剤 Triton X-100 によるトマト果実由来エピクチクラワックス成分の選択的可溶化

DOI NDLデジタルコレクション 日本農学文献記事索引 Web Site Web Site 被引用文献2件 参考文献22件
  • 田村 廣人
    Department of Applied Biological Chemistry, Meijo University
  • KNOCHE Moritz
    Institute for Agronomy and Crop Science, Department of Horticulture, Martin-Luther-University of Halle-Wittenberg
  • 林 幸之
    Aburahi Laboratories, Shionogi Co. & Ltd.
  • BUKOVAC Martin J.
    Department of Horticulture, Michigan State University

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  • Selective Solubilization of Tomato Fruit Epicuticular Wax Constituents by Triton X-100 Surfactant

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The effect of the surfactant Triton X-100, α-[4-(1, 1, 3, 3-tetramethylbutyl)phenyl] -ω-hydroxypolyoxy-1, 2-ethanediyl, on solubilization of epicuticular wax of mature tomato (Lycopersicon esculentum Mill.) fruit was investigated. The surfactant solubilized the unsaturated hydrocarbons, hexacosene and tritriacontadiene, and the triterpenols, α- and β-amyrins; solubilization was concentration dependent above the critical micelle concentration. Only traces or nondetectable quantities of saturated hydrocarbons were solubilized. Our data provide a definitive evidence that the surfactant solubilized selective constituents of epicuticular wax. Based on calculation of the logarithm of octanol/water partition coefficients for wax constituents, it appears that the mechanism of surfactant solubilization of the constituents was not solely related to the hydrophobicity of the constituents, but may involve pi-pi interaction, van der Waals interaction or molecular conformation of the solubilized constituents. This solubilization of epicuticular wax may decrease the diffusive resistance of the cuticular membrane and, hence, facilitate penetration of surfactant-formulated foliar applied agrochemicals.

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