Citation
Lin S., . and Xu Q., . and Yang B., . and Wang W., . and Luo J., . and Wang Y., . and Luo R., . Physicochemical properties of soybean-based diacylglycerol before and after dry fractionation. pp. 497-504. ISSN 2231-7546
Abstract
In the present work the physicochemical properties of soybean-based DAG (SDAG) especially the effects of dry fractionation on crystallisation properties were investigated. The solid portion (SF) and liquid portion (LF) were obtained by dry fractionation of SDAG. The physicochemical properties of soybean oil SDAG LF and SF were investigated including the determination of acylglycerol composition fatty acid (FA) composition slip melting point (SMP) iodine value (IV) solid fat content (SFC) X-ray diffraction (XRD) and differential calorimetry (DSC). The DAG content of SF (44.79 0.87) was higher than SDAG (41.94 1.28) and LF (42.22 0.29). After fractionation SF contained higher levels (p 0.05) of saturated fatty acids (SAFA) and lower levels (p 0.05) of unsaturated fatty acids (UFA) than LF and SDAG which was in accordance with the differences in IV and SMP. The SFC of SF (0C 17.25 0.65; 20C 10.66 0.28; 40C 3.47 0.14) was significantly higher than those of LF and SDAG (p 0.05). With respect to the crystal structures it was demonstrated that SF contained more crystals than SDAG and LF and could be better used in shortening. Overall the present work provides a theoretical basis for the industrial applications of SDAG and its fractions.
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Abstract
In the present work the physicochemical properties of soybean-based DAG (SDAG) especially the effects of dry fractionation on crystallisation properties were investigated. The solid portion (SF) and liquid portion (LF) were obtained by dry fractionation of SDAG. The physicochemical properties of soybean oil SDAG LF and SF were investigated including the determination of acylglycerol composition fatty acid (FA) composition slip melting point (SMP) iodine value (IV) solid fat content (SFC) X-ray diffraction (XRD) and differential calorimetry (DSC). The DAG content of SF (44.79 0.87) was higher than SDAG (41.94 1.28) and LF (42.22 0.29). After fractionation SF contained higher levels (p 0.05) of saturated fatty acids (SAFA) and lower levels (p 0.05) of unsaturated fatty acids (UFA) than LF and SDAG which was in accordance with the differences in IV and SMP. The SFC of SF (0C 17.25 0.65; 20C 10.66 0.28; 40C 3.47 0.14) was significantly higher than those of LF and SDAG (p 0.05). With respect to the crystal structures it was demonstrated that SF contained more crystals than SDAG and LF and could be better used in shortening. Overall the present work provides a theoretical basis for the industrial applications of SDAG and its fractions.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Glycerol |
| AGROVOC Term: | Soybeans |
| AGROVOC Term: | Fractionation |
| AGROVOC Term: | Crystallization |
| AGROVOC Term: | Physicochemical properties |
| AGROVOC Term: | Polymorphism |
| AGROVOC Term: | Fat content |
| AGROVOC Term: | Acylglycerols |
| AGROVOC Term: | Fatty acids |
| AGROVOC Term: | Melting point |
| Depositing User: | Mr. AFANDI ABDUL MALEK |
| Last Modified: | 24 Apr 2025 00:54 |
| URI: | http://webagris.upm.edu.my/id/eprint/9148 |
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