高温におけるトリグリセリド中のBHAの酸化的2量化のリン脂質による抑制〔英文〕
スポンサーリンク
概要
- 論文の詳細を見る
The effects of phospholipids on the oxidative dimerization of t-butylated hydroxyanisole (BHA) were investigated during the thermal oxidation of saturated and unsaturated triglycerides.<BR>Glycerol trilaurate or glycerol trilinoleate, into which BHA and phospholipids (phosphatidyl choline and phosphatidyl ethanolamine) were previously dissolved, was oxidized by air at 150°C for 10h, and the concentrations of BHA monomer and its dimers in the reaction mixture were determined by HPLC.<BR>In glycerol trilaurate, the formation of a diphenyl ether type dimer from BHA monomer was strongly suppressed by addition of phospholipids. The effect of phosphatidyl ethanolamine was in essentially the same as that of phosphatidyl choline. In glycerol trilinoleate, the stability of the BHA monomer was remarkably increased and the amounts of dimers formed in a reaction mixture decreased significantly by the addition of phospholipids. However, the total amount of the BHA monomer and its dimers showed little change. From these facts, it is clear that phospholipids inhibit the initial stage of the oxidation of BHA. When tri-η-octylamine and tri-η-butyl phosphate were added to a solution of BHA in glycerol trilinoleate, a little inhibition of the oxidative dimerization was seen. Thus, the prevention of the oxidative dimerization of BHA by phospholipids may not necessarily be due to the combined action of phosphate ester linkage and amine group in the phospholipid molecule. The effect of phosphatidyl ethanolamine on the oxidative dimerization of BHA in a mixture of glycerol trilaurate and glycerol trilinoleate (4:1) was essentially the same as that in glycerol trilinoleate alone.
- 日本油化学会の論文
著者
関連論文
- 大学進学に伴う化学に対するイメージの変容 : 化学系学生を対象として
- 化学教材としての油脂の自動酸化
- 化学教材としての油脂の自動酸化
- 平成 6 年度中国四国地区化学教育研究協議会高知大会
- 液滴の顕微ビデオ撮影による界面活性剤教材(小・中・高のページ)
- 排水中の非イオン界面活性剤の土壌による浄化のモデル実験
- C2-07 水質分析の環境化学教材化 : 広島県瀬野川黒瀬川を例として
- 油脂のヨウ素価の演示実験法
- 大学新入生は衣料・プラスチックの化学についてどれくらいの知識をもっているか
- B-205 土壌による非イオン界面活性剤の分解