Pressure-induced crystallization of triacylglycerides

被引：24
|
作者：
Ferstl, P. [3 ]
Eder, C. [3 ]
Russ, W. [2 ]
Wierschem, A. [1 ]
机构：
[1] Univ Erlangen Nurnberg, Inst Fluid Mech, D-91058 Erlangen, Germany
[2] Tech Univ Munich, Res Grp Environm Tech Food Ind, D-85354 Freising Weihenstephan, Germany
[3] Tech Univ Munich, Inst Proc Syst Engn, D-85354 Freising Weihenstephan, Germany
来源：
HIGH PRESSURE RESEARCH | 2011年 / 31卷 / 02期
关键词：
crystallization; crystal growth rate; induction time; triacylglycerides; high pressure; polarization microscopy; DIFFERENTIAL SCANNING CALORIMETRY; HYDROGENATED SUNFLOWER OIL; ISOTHERMAL CRYSTALLIZATION; PALM OIL; PHASE-TRANSITION; KINETICS; TRIPALMITIN; TRANSFORMATION; NUCLEATION; BEHAVIOR;
D O I：
10.1080/08957959.2011.582870
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on the impact of high pressures on the crystallization of pure triolein and triolein-trilaurin mixtures. We detect growth rates and induction times of single crystals under a high pressure application with a polarization microscope. Statistical studies on the induction time were carried out studying light scattering and transmittance. Similar to supercooling in temperature-induced crystallization, we find a superpressuring in pressure-induced crystallization. In binary mixtures, the inverse induction time indicates a threshold concentration close to the melting point of one component, beyond which it depends linearly on concentration.
引用
收藏
页码：339 / 349
页数：11
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