[1] Catalysis Science and Technology Research Centre (PutraCat), Faculty of Science, Universiti Putra Malaysia, Selangor, Serdang,43400 UPM, Malaysia
[2] Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Selangor, Serdang,43400 UPM, Malaysia
[3] Department of Sciences and Technology, Universiti Putra Malaysia Bintulu Campus, Nyabau Road, Sarawak, Bintulu,97008, Malaysia
[4] Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Selangor Darul Ehsan, Bangi,43600 UKM, Malaysia
[5] Preparatory Centre for Science and Technology, Universiti Malaysia Sabah, Sabah, Kota Kinabalu,88400, Malaysia
[6] Biomass Technology Unit Engineering and Processing Division, Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Selangor, Kajang,43000, Malaysia
[7] Chancellery Office, Universiti Malaysia Sabah, Sabah, Kota Kinabalu,88400, Malaysia