کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
231663 | 1427445 | 2009 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Enzymatic production of mono- and diglycerides in compressed n-butane and AOT surfactant Enzymatic production of mono- and diglycerides in compressed n-butane and AOT surfactant](/preview/png/231663.png)
This work reports the production of mono- and diglycerides from olive oil in pressurized n-butane as solvent medium. For this purpose, a commercial immobilized lipase (Novozym 435) was employed as a catalyst and sodium (bis-2-ethyl-hexyl) sulfosuccinate (Aerosol-OT or AOT) as a surfactant. The experiments were conducted in the batch mode varying the glycerol-to-oil molar ratio, n-butane-to-substrate mass ratio, enzyme concentration, temperature, pressure, and AOT concentration. Results showed that lipase-catalyzed glycerolysis in compressed n-butane might be a potential alternative route to conventional methods, as high contents of reaction products, especially monoglycerides (∼70 wt%), were achieved at mild temperature and pressure with a relatively low solvent-to-substrate mass ratio (4:1) in short reaction times (2 h).
This work reports the production of mono and diglycerides from olive oil in pressurized n-butane as solvent medium. For this purpose, a commercial immobilized lipase (Novozym 435) was employed as catalyst and sodium (bis-2-ethyl-hexyl) sulfosuccinate (Aerosol-OT or AOT) as surfactant. The experiments were conducted in the batch mode varying the glycerol to oil molar ratio, n-butane to substrates mass ratio, enzyme concentration, temperature, pressure, and AOT concentration. Results showed that lipase-catalyzed glycerolysis in compressed n-butane might be a potential route to conventional methods, as high contents of reaction products, especially monoglycerides (∼70 wt%), were achieved at mild temperature and pressure with a relatively low solvent to substrates mass ratio (4:1) in short reaction times (2 h).Figure optionsDownload as PowerPoint slide
Journal: The Journal of Supercritical Fluids - Volume 49, Issue 2, June 2009, Pages 216–220