反応 #481613

反応方程式

methyl stearate

methyl oleate

→

DGLA

反応条件

後処理

1. 1
   その他Methyl ester of DGLA is recovered preferably
2. 2
   抽出by extracting the above-mentioned treated solution with an organic solvent such as hexane
3. 3
   抽出Next, the resulting extract
4. 4
   乾燥is dried on, for example, anhydrous sodium sulfate
5. 5
   workup.DISTILLATIONthe solvent is distilled off preferably under reduced pressure
6. 6
   その他to obtain a mixture

実験手順

Methyl ester of DGLA is recovered preferably by extracting the above-mentioned treated solution with an organic solvent such as hexane, an ether such as ethyl ether, or an ester such as ethyl acetate. Next, the resulting extract is dried on, for example, anhydrous sodium sulfate, and the solvent is distilled off preferably under reduced pressure to obtain a mixture comprising fatty acid esters. This mixture contains, in addition to the desired fatty acid HGLA methyl ester, other fatty acid methyl esters, such as methyl parmitate, methyl stearate, methyl oleate and the like. To isolate methyl ester of DGLA from the mixture of these fatty acid methyl esters, column chromatography, low temperature crystallization, the urea-inclusion method, the liquid/liquid countercurrent chromatography method, and the like can be used alone or in combination.

出典