J. Maulana, H. Suryanto, B.D. Susilo, U. Yanuhar, A. Aminnudin, Y.R.A. Pradana, R.D. Bintara
Abstrak. This research identified the effect of additional polyethylene glycol (PEG) in bacterial cellulose made from pineapple peel waste. The produced pellicles were soaked in PEG solution with 0%, 1%, 2.5%, and 5%. Then, they were homogenised using an ultrasonic homogeniser for 15 minutes before dried using the freeze-drying method. The functional groups were observed using FTIR. The functional groups showed the presence of cellulose I and cellulose II at 439.08 cm-1, 2895.15 cm-1, 1963.53 cm-1 1633.71 cm-1, 1315.45 cm-1, 839.03 cm-1 wavenumbers. Additional PEG caused an increase of the C-H bond at 1963.53 cm-1 wave number. © Published under licence by IOP Publishing Ltd.
Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Malang, Jl. Surabaya 6, East Java, Malang, Indonesia; Center of Excellence for Cellulose Composite (CECCom), Department of Mechanical Engineering, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia; Department of Waters Resources Management, Faculty of Fisheries and Marine Sciences, Universitas Brawijaya, Jl. Veteran Malang, East Java, Indonesia
