Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, Franje Kuhača 20, HR-31000 Osijek, Croatia.
Group Micro Flow Chemistry and Process Technology, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, the Netherlands.
J Biosci Bioeng. 2019 Jul;128(1):98-102. doi: 10.1016/j.jbiosc.2019.01.004. Epub 2019 Feb 7.
Biodiesel production depends to a great extent on the use of cheap raw materials, since biodiesel itself is a mass product, not a high-value product. New processing methods, such as micro-flow continuous processing combined with enzymatic catalysis, open doors to the latter. As reported here, the window of opportunity in enzyme-catalyzed biodiesel production is the conversion of waste cooking oil. The main technological challenge for this is to obtain efficient immobilization of the lipase catalyst on beads. The beads can be filled into tubular reactors where designed packed-bed provide porous channels, forming micro-flow. It turns out, that in this way, the immobilization costs become the decisive economic factor. This paper reports a solution to that issue. The use of oil cake enables economic viability, which is not given by any of the commercial polymeric substrates used so far for enzyme immobilization. The costs of immobilization are mirrored in the earnings and cash flow of the new biotechnological process.
生物柴油的生产在很大程度上依赖于廉价原料的使用，因为生物柴油本身是一种大众产品，而不是高价值产品。新的加工方法，如微流连续处理与酶催化相结合，为后者开辟了道路。正如这里所报道的，酶催化生物柴油生产的机会之窗是转化废食用油。这方面的主要技术挑战是在珠粒上获得高效固定化脂肪酶催化剂。珠粒可以填充到管式反应器中，在那里设计的填充床提供多孔通道，形成微流。事实证明，通过这种方式，固定化成本成为决定性的经济因素。本文报道了该问题的解决方案。油饼的使用使得经济可行性成为可能，而迄今为止用于酶固定化的任何商业聚合物基质都无法实现这一点。固定化成本反映在新工艺的收益和现金流量中。
