|
| Removal of 3-MCPD esters and glycidyl esters from soybean oil by adsorption |
| |
| DOI： |
| KeyWord:3-MCPD esters glycidyl esters adsorption removal removal rate soybean oil |
| FundProject: |
|
| Hits: 2055 |
| Download times: 447 |
| Abstract: |
| Using soybean oil as raw material, the impacts of adsorbent type and adsorbent dosage on the removal effect of 3-MCPD esters and the impacts of adsorbent type，adsorbent dosage, adsorption temperature and adsorption time on the removal effect of glycidyl esters from soybean oil were investigated. The results showed that the order of the removal effect of different adsorbents on 3-MCPD esters from high to low was as follows: H-1 activated carbon, activated clay, H-2 activated carbon, common activated carbon and attapulgite. The removal rates of adsorbents on 3-MCPD esters were all low, and the removal rate of 3-MCPD esters by H-1 activated carbon (dosage 0.5% of oil mass)with a relatively better removal effect was merely 34.42%,and the content of 3-MCPD esters reduced from 1.107 mg/kg to 0726 mg/kg.The order of the removal effect of different adsorbents on glycidyl esters from high to low was as follows: H-1 activated carbon, H-2 activated carbon, common activated carbon, activated clay and attapulgite.When the dosage was 2%, the removal rates of the first three adsorbents on glycidyl esters were all above 80%. Furthermore, the removal rate of H-1 activated carbon was more than 90%.The optimal removal conditions were obtained as follows: dosage of H-1 activated carbon 3%, adsorption time 40 min and adsorption temperature 100?℃. Under these conditions, the content of glycidyl esters reduced from the initial 2.810 mg/kg to 0.124 mg/kg, and the removal rate was 95.59%.So glycidyl esters in soybean oil could be effectively removed. |
| View full text View/Add Comment Download reader |
| Close |
|
|
|
