کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
680752 | 1459990 | 2014 | 6 صفحه PDF | دانلود رایگان |
• Pickering emulsion stabilized by lipase-containing PMO was constructed firstly.
• The Pickering emulsion system was used as biocatalyst for biodiesel production.
• The Pickering emulsion showed outstanding activity, mechanical and storage stability.
• Applications of this Pickering emulsion system in biocatalysis field are promising.
A novel catalytic system of Pickering emulsion stabilized by lipase-containing periodic mesoporous organosilica was constructed (named LP@PE) and used as biocatalyst for biodiesel production. The reaction parameters were optimized and the optimum conditions were as follows: the water fraction 0.65%, molar ratio of ethanol to oleic acid 2:1, immobilized lipase particles 150 mg, phosphate buffer pH 7.0 and temperature 30 °C. Under these conditions, the maximum biodiesel yield obtained via esterification of oleic acid with ethanol could reach 95.8%. The biodiesel yield could maintain 88.6% after LP@PE was used 15 times. The LP@PE was also used in the synthesis of biodiesel from Jatropha curcas oil. The highest yield could reach 87.1% and the yield was 73.0% after 10 cycles. All these results demonstrated that Pickering emulsion system stabilized by immobilized enzyme may possess much potential in many enzymatic industrial applications.
Journal: Bioresource Technology - Volume 153, February 2014, Pages 278–283