Preparation of Chitosan-Polyethylene Oxide-Colocasia esculenta Flour Nanofibers using Electrospinning Method

Riesca Ayu Kusuma Wardhani (Engineering Physics Study Program, Institut Teknologi Bandung, Bandung)
Lia Asri (Materials Engineering Study Program, Institut Teknologi Bandung, Bandung)
Muhamad Nasir (Research Center for Chemistry, Indonesian Institute of Sciences, LIPI, Bandung)
Bambang Sunendar Purwasasmita (Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung, Bandung)

Journal of Mechanical Engineering Science and Technology
Vol 3, No 1 (2019)

Nanofibers have been prepared from the mixture of chitosan, polyethylene oxide (PEO) and Colocasia esculenta flour (CE flour) by using the electrospinning method. Two different nanofibers were formulated, containing chitosan-PEO and chitosan-PEO-CE flour. The higher concentration of PEO (3%chitosan-6%PEO) (w/v) resulted in more uniform chitosan-PEO electrospun nanofibers without beads. Chitosan-PEO-CE flour was prepared by addition of colloidal CE flour into the solution containing 3%chitosan-6%PEO with variation of the CE flour concentration of 5, 15 and 25% (w/v). Scanning Electron Microscopy demonstrated that the average diameter of chitosan-PEO nanofibers was 128±41 nm, whereas the diameter of chitosan-PEO-CE flour nanofibers was 159±45 nm. The diameters of nanofibers increased with the increase of CE flour content. Fourier transform infrared spectra demonstrate the presence characteristic peaks of chitosan, PEO and CE flour.