1. Department of Agro-industrial Technology, Faculty of Agriculture, University of Lampung, Jl. Sumantri Brojonegoro 1, Bandar Lampung 35145, Indonesia
2. Department of Agriculture Engineering, Faculty of Agriculture, University of Lampung, Jl. Sumantri Brojonegoro 1, Bandar Lampung 35145, Indonesia
3. Department of Chemical Engineering, Faculty of Industrial Technology, Bandung Institute of Technology, Jl. Ganesa 10, Bandung 40132, Indonesia
4. Graduate School of Environment and Information Sciences, Yokohama National University, 79-7 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan