Optimisation study of large-scale enzymatic synthesis of oleyl eleate,a liquid wax ester,by response surface methodology

Mat Radzi, Salina and Basri, Mahiran and Salleh, Abu Bakar and Ariff, Arbakariya and Mohammad, Rosfarizan and Abdul Rahman, Mohd Basyaruddin and Raja Abdul Rahman, Raja Noor Zaliha (2006) Optimisation study of large-scale enzymatic synthesis of oleyl eleate,a liquid wax ester,by response surface methodology. Journal of Chemical Technology & Biotechnology, 81 (3). pp. 374-380. ISSN 0268-2575

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1002/jctb.1404

Abstract

An optimisation study of the large-scale enzymatic synthesis of a liquid wax ester from oleic acid and oleyl alcohol using Novozym 435 was carried out. Investigations were performed in batch mode with a stirred tank reactor (STR) with one multi-bladed impeller. Response surface methodology (RSM) based on a five-level, three-variable central composite rotatable design (CCRD) was used to evaluate the interactive effects of various parameters. The parameters are amount of enzyme (A) (90–120 g), impeller speed (B) (100–400 rpm) and temperature (C) (40–60 °C). The optimum conditions derived via RSM at a fixed reaction time of 1 h were successfully optimised as A = 104 g, B = 388.0 rpm and C = 49.7 °C. The actual experimental yield was 96.7% under the optimum conditions, which compared well with the maximum predicted value of 97.6%. Copyright © 2005 Society of Chemical Industry

Item Type:Article
Keyword:response surface methodology, central composite rotatable design, liquid wax ester, Novozym 435, esterification
Faculty or Institute:Faculty of Science
Publisher:John Wiley & Sons, Ltd.
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1002/jctb.1404
ID Code:5606
Deposited By: Erni Suraya Abdul Aziz
Deposited On:16 Apr 2010 06:35
Last Modified:27 Jul 2010 09:19

Repository Staff Only: item control page


Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.