天然油脂トリグリセリドの分子種に関する研究

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Studies on the analysis of triglyceride (TG) by high-performance liquid chromatography (HPLC), the molecular species of TG in naturally occurring fats and oils, and the relationship between TG molecular species and rates of their oxidation were discussed and summarized. In the method of HPLC analysis of TG, partition number (PN) was designated by the following equation : PN=TC (Total carbon number) -2 × DB (Number of double bond). On the other hand, the equation, TCN (theoretical carbon number) =PN (ECN) -Σ<SUB>1</SUB><SUP>3</SUP> Ui was also explained. Practical procedure for the calculation of molecular species in TG was indicated as to soybean oil, and then major molecular species of several plant and animal lipids TG were listed in order of major one. On these evaluation, triunsaturated type of TGs could be found among those major species. In the subject of oxidation, it waspointed out that the TG having unsaturated acyl linked at the 2-position of glycerol are more stable towards oxidation than those linked at the 1 (3) -position.
社団法人日本油化学会の論文