可塑性脂肪のトリグリセリド組成の研究
1987 年 36 巻 12 号 p. 933-937
詳細
1987 年 36 巻 12 号 p. 933-937
Triglyceride compositions of beef fat, lard and palm oil were studied by oxidation-fraction-GLC.
1) Saturated and unsaturated fatty acids were randomly distributed in beef fat and lard, but non-randomly in palm oil. Most fatty acids of S3, S2U, SU2 and U3 were randomly distributed in each triglyceride fraction.
2) Lauric acid and myristic acid content was high in S3. Palmitic acid content of beef fat and lard increased, but stearic acid content decreased with unsaturated fatty acyl group as S3<S2U<SU2. But palmitic acid content of palm oil was constantly high level about 87% among the glycerides.
3) C44 to C50 triglyceride were mainly composed of S3 and S2U, and so they would appear solid fats. C52 were composed of S2U and SU2, and so they would appear plastic fats. Finally, C54 were composed of SU2 and U3, and so they would appear liquid oils.
4) Triglyceride compositions of these fats were calculated without the glyceride distribution theory, and the data agreed with the values found in literatures.
