SYNOPSIS

Enzymes are well-known as green biocatalysts and sustainable technology that possess of high degree of specificity, selectivity and efficiency, which enables them to discriminate between substrates, molecules, and optical isomers. Unfortunately, free or native enzyme application is relatively expensive, chemically or thermally unstable, and difficult for handling, purification and reuse. Enzyme immobilization is a special technique to solve enzymatic problems (in the application of native enzyme). There are two main reasons why enzyme immobilization has the potential to be implemented in an effective way: i) immobilization facilitates separating between enzyme molecule and product, and ii) immobilization improves enzyme reusability. There are several immobilization techniques such as entrapment, encapsulation, adsorption, cross-linking, and covalent binding. The selection of immobilization techniques and immobilization support plays important role in the immobilized enzyme loading, enzyme stability and enzymatic performance. In this talk, the preparation of enzyme immobilization, design of immobilized bioreactor system and enzymatic process performance will be discussed in detail.


BIODATA OF SPEAKER

Dr. Mohd Noriznan Bin Mokhtar, Grad IEM, obtained B.Eng. in Chemical and Process Engineering from Universiti Kebangsaan Malaysia in 2000. In 2004, he obtained M.Sc. degree in Chemical Engineering with specialization of Biochemical Engineering from Technische Universität Dortmund, Germany. His master thesis related to the study on dynamic mathematical modeling and simulation of enzymatic process using packed bed reactor. In 2009, he received his Doktoringenieur (Ph.D.) in Bioprocess Engineering from Technische Universität Chemnitz, Germany. His Ph.D. research focused on the enzymatic production and separation of large-ring cyclodextrins produced from starch. Since 2009, he is a senior lecturer, and currently as head of Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia. He published 35 CIJ journals and 5 patents related to bioresource and bioprocess engineering. He is graduate member of IEM, associate member of IChemE and member of Association of German Engineers (VDI).