油脂の水素添加中に起こる過酸化物の分解とその生成物 (第2報) : 重合物の検索

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In previous papers, the authors reported that peroxides in oils are decomposed by hydrogenation into hydrocarbons, aliphatic alcohols and ketones as volatiles, and into ω-hydroxy acids and lower fatty acids in the glycerides.<BR>In this paper, the soybean oil with peroxide value 230 was hydrogenated and the polymerized products were isolated as non urea adduct fraction (NAF). The NAF was further fractionated by LC and TLC.<BR>When the oil was hydrogenated under industrial condition the polymerlized products were increased. They were non-polar dimer acids, keto-dimer acids, hydroxy-dimer acids and trimer with hydroxy groups. When the oil was hydrogenated with Pd catalyst at lower temperature, NAF did not increase. But keto acid and hydroxy acid were found in urea-adduct fraction.
社団法人日本油化学会の論文