Browsing School of Bioprocess Engineering (Articles) by Author "Mohamed Zulkali, Mohamed Daud"
Now showing items 1-4 of 4
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Controlled/living radical polymerization of methyl methacrylate in the presence of 2-bromoethanol as a transfer agent and comparison with cumyl dithiobenzoate as a RAFT agent
Akmal Hadi, Ma' Radzi; Hairul Nazirah, Abdul Halim; Zulfakar, Mokhtar; Mohamed Zulkali, Mohamed Daud (Asian Network for Scientific Information, 2009)Living polymerization is a process without transfer and termination chain reaction process. It has been developed almost 50 years ago. There are many types of living radical polymerization and the most versatile method is ... -
Economic benefit from the optimization of citric acid production from rice straw through Plackett-Burman design and central composite design
Hayder Khaleel, Qurban Ali; Mohamed Zulkali, Mohamed Daud; Zinah, Al-Azzawi (TÜBİTAK., 2012)An economic study was carried out to show the benefits of optimization during the production of citric acid from rice straw as a substrate by solid-state fermentation (SSF) using Aspergillus niger. The optimization ... -
Optimization of thaumatin extraction by aqueous two-phase system (ATPS) using response surface methodology (RSM)
A.L., Ahmad; C.J.C., Derek; Mohamed Zulkali, Mohamed Daud (Elsevier B.V., 2008-09-22)The work attempts to study and optimize aqueous two-phase system (ATPS) made of polyethylene glycol (PEG)/sodium sulfate and PEG/potassium phosphate. Five factors (PEG's molecular weight, PEG's concentration, pH, concentration ... -
Thermo-enzymatic hydrolysis of Cassava Starch by α-amylase and amyloglucosidase
Ku Syahidah, Ku Ismail; A.A. Ahmad; T. Inba; Khairul Farihan, Kasim; Mohamed Zulkali, Mohamed Daud (Universiti Malaysia Perlis (UniMAP), 2008-03-16)One of the greatest challenges for the 21st century society is to meet the growing demand for energy for transportation in sustainable way. Petroleum based products are in critical state and alternatives for fuel is needed. ...