PARTITION-COEFFICIENT OF DIGLYCERIDES IN CRYSTALLIZATION OF PALM OIL

被引：22

作者：

SIEW, WL ^{[1
]}

NG, WL ^{[1
]}

机构：

[1] UNIV MALAYA,DEPT CHEM,KUALA LUMPUR 59100,MALAYSIA

来源：

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY | 1995年 / 72卷 / 05期

关键词：

DIGLYCERIDES; DRY FRACTIONATION; FRACTIONATION; OLEIN; PALM OIL; PARTITION; SOLVENT FRACTIONATION; STEARIN; WINTERIZATION;

D O I：

10.1007/BF02638861

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Crystallization of palm oil with and without solvent was carried out over a temperature range of 10-25 degrees C. The yields of olein, the diglyceride contents, and compositions of the stearin and olein phases were determined by thin-layer and gas-liquid chromatography. The three major diglycerides, analyzed as C-32, C-34, and C-36, are mainly dipalmitoyl glycerol, palmitoyloleoyl glycerol, and dioleoyl glycerol. In crystallization without solvent, C-32 (PP) had a strong affinity for the stearin fraction and C-36 diglycerides concentrated in the olein phase. The partition coefficient of diglycerides between the olein and stearin phases was temperature-dependent and was influenced by the type of solvent used. Although solvent enhances the diglyceride partition into the olein phase, partitioning is more effective at low temperatures and with acetone as the solvent for fractionation.

引用

页码：591 / 595

页数：5

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