RELATIONSHIP BETWEEN COOLING RATE AND CRYSTALLIZATION BEHAVIOR OF HYDROGENATED SUNFLOWER-SEED OIL

被引：14
|
作者：
HERRERA, ML [1 ]
SEGURA, JA [1 ]
RIVAROLA, GJ [1 ]
ANON, MC [1 ]
机构：
[1] MOLINOS RIO LAPLATA,RA-1323 LA PLATA,ARGENTINA
来源：
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY | 1992年 / 69卷 / 09期
关键词：
COOLING RATE; CRYSTALLIZATION; DIFFERENTIAL SCANNING CALORIMETRY; HYDROGENATED SUNFLOWER-SEED OIL;
D O I：
10.1007/BF02636341
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The relationship between cooling rate and crystallization behavior of hydrogenated sunflowerseed oil and its thermal properties during melting were investigated by differential scanning calorimetry and x-ray diffraction. At crystallization, temperature peaks and area percents of components with higher melting points were found to be greater when cooling rate was slower. When samples were melted, total enthalpies were similar at all rates. According to the chemical composition of the analyzed samples, the components with higher melting points were found in samples with a higher saturated fatty acid content. Changes in the profile of melting curves might be due to differences in triglyceride intersolubility.
引用
收藏
页码：898 / 905
页数：8
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