Our material utilization strategy for plant-derived organic carbon aims to replace the multi-step processing of fossil sources (crude oil, natural gas) into polyesters and polyethers as functional polymers with a process chain consisting of extraction, filtration and partial depolymerization of polysaccharides from plant residues. Through this raw material source for organically bound carbon, the carbon of the product and the CO2 balance for the provision of the biomass (fertilization, plant protection, harvesting) is climate neutral. The raw material can be fed directly into the extraction process with a compact plant at the point of origin (e.g. fruit-processing company, pectin producer) without drying that requires energy. In addition, the extraction residue is suitable for the established fermentative uses (materials, energetic), so that a combination with plants for the fermentation of biomass can take place. It is demonstrated that the number of energy-requiring processes for the production of functional OH-rich polymers from organically bound carbon is lower with our utilization strategy compared to fossil-based synthesis. Of course, the energy design of the state of the art processes is decisive for the extent of energy savings compared to polyester or polyether production from fossil sources. By using the state of the art process technology in thermal and mechanical separation processes in the chemical industry, the need for thermal energy is limited. For example, for hot water extraction, thermal insulation and heat energy recovery through heat exchangers play an important role. For pressure filtration, the use of compression heat is self-evident. The energy requirement for the synthesis of auxiliary substances is comparatively low, since water is sufficient for extraction and small amounts of sulfuric acid for depolymerization. Even if the energy released during depolymerization (heat of reaction) is small compared to the total energy budget of the processes, its existence nevertheless illustrates the principle character of our utilization strategy: the aim is to use the energy content of natural polymers to a large extent and not to lose it by cracking them into C1, C2 and C3 building blocks. The same applies to the utilization of the natural OH functionalities already present in the raw materials.