Sains Malaysiana 45(7)(2016): 1149–1154

Experimental Design using Response Surface Methods for Palm Olein-Based Hydroxy-Ether Systhesis

(Reka Bentuk Eksperimen menggunakan Kaedah Respons Permukaan untuk Sintesis Hidroksi-Eter Minyak Sawit Olein)

DARFIZZI DERAWI*

School of Chemical Science and Food Technology, Faculty of Science and Technology

Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan, Malaysia

Received: 1 October 2015/Accepted: 10 February 2016

ABSTRACT

Hydroxy-ether-POo was synthesised via alcoholysis reaction of epoxidized palm olein (EPOo). The experimental design was conducted using response surface methodology (RSM) based on 3 factors; reaction time, reaction temperature and catalyst loading. Responses such as percentage of conversion and percentage of yield were determined using statistical software ‘Design Expert 9’. Hydroxy-ether-POo showed the presence of proton peak attached to the carbon of ether (3.2, 3.5 ppm) and proton of the hydroxyl (4.8 ppm). The presence of carbon peak bonded to hydroxyl was detected at chemical shift 75 ppm and carbonyl carbon of ether at 72 ppm.

Keywords: Alcoholysis; oxirane cleavage; palm olein; response surface methods

ABSTRAK

Sebatian hidroksi-eter-POo disintesis melalui tindak balas alkoholisis minyak sawit olein terepoksida (EPOo). Reka bentuk eksperimen dirangka menggunakan kaedah respons permukaan (RSM) berdasarkan 3 faktor; masa tindak balas, suhu tindak balas dan peratusan mangkin. Respons peratusan penukaran dan peratus hasil tindak balas ditentukan menggunakan perisian statistik ‘Design Expert 9’. Hidroksi-eter-POo telah menunjukkan kehadiran puncak proton pada karbon eter (3.2, 3.5 ppm) dan proton pada kumpulan hidroksil (4.8 ppm). Puncak karbon hidroksi-eter-POo yang terikat dengan kumpulan hidroksil dikesan pada anjakan kimia 75 ppm dan karbon pada karbonil kumpulan eter pada 72 ppm.

Kata kunci: Alkoholisis; kaedah respons permukaan; minyak sawit olein; pembukaan gelang oksirana

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*Corresponding author; email: darfizzi@ukm.edu.my