1. ; Advanced Oleochemical Technology Centre; Palm Oil Research Institute of Malaysia; Lot 9 & 11, Jalan P/14 43650 Bandar Baru Bangi, Selangor Malaysia
2. ; Enzyme and Microbial Technology Research, Fakulti Sains & Pengajian Alam Sekitar; Universiti Putra Malaysia; 43400 Serdang, Selangor Malaysia