Patent-family-89508972

The present invention relates to a method for preparing a bioplastic unit comprising the following steps: a) preparing a feed material of a polysaccharide originating from algae by adapting the viscosity of the feed material by removing or adding solvent during mixing or drying or squeezing or wetting or soaking, or by adapting size of the feed by grinding or downsizing into gravel-sized blocks or lumps, and optionally by adding additives, b) subjecting feed material(s) or the prepared feed material to a temperature above 20˚C below the boiling point of the solvent, preferably to a temperature above 10˚C below the boiling point of the solvent, c) while maintaining the increased temperature of step b), the pretreated material is shaped into a bioplastic unit by subjecting the pretreated material to an increased pressure e.g. during 3D printing, or extruding, or by pouring or injecting the pretreated material into a mould.