Potential 3D filament of Janeng (Dioscorea hispida Dennst) starch: Preparation and characterization

•Modification of the filament with biodegradable materials can produce a satisfactory filament structure.•With the advantage of not interfering with economic national food security, the janeng plant has great potential as a mixed material in various material science sub-sectors.•In-depth research is needed in the use of janeng plants as new materials.