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| Crystallization behavior and compatibility of diacylglycerol-based plastic fat |
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| DOI： |
| KeyWord:diacylglycerol lipase plastic fat crystallization behavior compatibility |
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| Abstract: |
| Palm olein-based diacylglycerol (POL-DAG) was synthesized through Lipozyme 435-catalyzed glycerolysis of palm olein in a bubble column reactor, and POL-DAG with DAG content of 82.6% was obtained after being purified by molecular distillation. The crystallization behavior and compatibility of the plastic fat composed of oil-tea camellia seed oil (CO), palm stearin (PS) and POL-DAG were analyzed by differential scanning calorimeter and pulsed nuclear magnetic resonance. The results showed that the melting point, crystallization onset and crystallization enthalpy decreased when the CO content increased, while PS and POL-DAG showed opposite results. Compatibility was the worst when CO, PS and POL-DAG were mixed in a ratio of 1∶?1∶?1, while it was the best when in a ratio of 4∶?1∶?1, followed by 1∶?4∶?1 and 1∶?1∶?4. |
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