|
| Enzymatic esterification for synthesis of triglyceride |
| |
| DOI： |
| KeyWord:esterification triglyceride Novozym 435 |
| FundProject: |
|
| Hits: 1317 |
| Download times: 0 |
| Abstract: |
| Using oleic acid and glycerol as raw materials，the synthesis of triglyceride was studied with Novozym 435 as catalyst so as to meet the market demand for synthetic triglyceride. And the optimal synthesis conditions were obtained as follows：reaction temperature 100 ℃，molar ratio of glycerol to oleic acid 1∶3，enzyme dosage 4% （based on the total mass of glycerol and oleic acid），reaction time 6 h，residual pressure 0.9×103 Pa. Under the optimal conditions，the degree of esterification was 94.36%±0.47%，and the content of triglyceride in the product was 90.77%±0.85%. Under the optimal synthesis conditions，the activity of Novozym 435 had no significant decrease when it was reused for nine times，and the degree of esterification and content of triglyceride were 94.19%±1.70% and 87.40%±2.62%，respectively. Besides，the content of triglyceride was still over 80% when Novozym 435 was reused for twelve times. It was confirmed that this reaction could be applied to the deacidification of oil with high acid value. |
| View full text View/Add Comment Download reader |
| Close |
