Lipase‐catalyzed glycerolysis of soybean oil in supercritical carbon dioxide
Abstract The transesterification of soybean oil with glycerol, 1,2‐propanediol, and methanol by an immobilized lipase in flowing supercritical carbon dioxide for the synthesis of monoglycerides is described. A lipase from Candida antarctica was used to catalyze the reaction of soybean oil with glyce...
| Published in: | Journal of the American Oil Chemists' Society |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
1997
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1007/s11746-997-0152-7 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1007%2Fs11746-997-0152-7 https://onlinelibrary.wiley.com/doi/full/10.1007/s11746-997-0152-7 |
| Summary: | Abstract The transesterification of soybean oil with glycerol, 1,2‐propanediol, and methanol by an immobilized lipase in flowing supercritical carbon dioxide for the synthesis of monoglycerides is described. A lipase from Candida antarctica was used to catalyze the reaction of soybean oil with glycerol, 1,2‐propanediol, ethylene glycol, and methanol. Reactions were performed in supercritical carbon dioxide at a density of 0.72 g/L and at a flow rate of 6 µL/min (expanded gas). The substrates were added at flows ranging from 2.5 to 100 µL/min. Monoglycerides were obtained at up to 87 wt%, and fatty acid methyl esters at nearly 100 wt%. The reactivity of the alcohols paralleled the solubility of the substrate in liquid carbon dioxide. Glycerol has the slowest reaction rate, only 2% of that of methanol. |
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