1. Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300 Kota Samarahan, Sarawak, Malaysia
2. Drug and Herbal Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50330 Kuala Lumpur, Malaysia
3. Food Technology Study Program, Chemical Engineering Department, Sriwijaya State Polytechnic, Jalan Srijaya Negara, 30128 Palembang, Indonesia