Further utilisation of plant residues - 25/11/2021

Novel fibre composite made from hop fermentation residues

Biogas plants produce energy-rich gas by fermenting biomass. This process generates both liquid and solid fibrous and particulate fermentation residues. Researchers at the German Institutes of Textile and Fibre Research (DITF) have now managed to create a resistant and water-repellent fibre composite material from solid hop residues that can be used as a veneer to coat wood panels.

In reforestation projects, the seedlings must be protected. So-called growth covers prevent game from feeding on the young plants and help to ensure that they are not prevented from growing by other plants. Previously used sheaths made of plastic and metal are often not removed in time and pollute the environment. The DITF have developed a biodegradable yarn for growth covers from renewable raw materials.

The Cluster of Excellence IntCDC of the University of Stuttgart presents the "Maison Fibre" at the International Architecture Exhibition Venice. The full-scale inhabitable installation is made from robotically produced, fibrous building elements.

Dossier - 17/11/2021

Biorefinery: new paths to build our tomorrow

Sustainability is in vogue. And it’s not a question of wanting to be sustainable, but having to be: as the latest report from the Intergovernmental Panel on Climate Change shows, protecting the climate and the environment calls for swift action. Biorefineries that use renewable raw materials and recycle industrial raw materials are playing an important role in the bioeconomy concepts of many countries - including the state of Baden-Württemberg.

Climate-friendly circular economy - 11/11/2021

CO2 from the air as a raw material for chemicals

A Fraunhofer team has successfully produced a dye using CO2 adsorbed from the air. The aim is to move towards a climate- and resource-friendly circular economy. Chemicals, as well as fuels, can be produced cost-effectively using this process. How does the technical process work, and what opportunities does it open up?

Upcycling of lignin - 26/10/2021

Bioeconomic model project: vanillin from process industry residues

Extracting vanillin from lignin dissolved in black liquor and developing it into a process that can be scaled up for industry is a bioeconomic approach that researchers at Biberach University of Applied Sciences and Ulm University are pursuing in a five-year project.

Compostable nappies - 14/10/2021

Nappies for a sustainable bioeconomy

In an EU-funded project, the Tübingen-based biotech company Novis is working with international partners to develop a fully compostable nappy that contains no plastic parts. This could reduce the huge quantities of used disposable nappies that have been produced to date and the enormous costs of disposal, as well as avoiding the greenhouse gases produced when they are incinerated.

Researchers find the enzymatic link in the formation of methane from fatty acids by cooperating microorganisms. Microbial production of methane from organic material is an essential process in the global carbon cycle and an important source of renewable energy. This natural process is based on a cooperative interaction between different types of microorganisms: the fermenting bacteria and the methane-producing archaea.

Hygiene and health company Essity is today presenting a breakthrough in sustainable tissue production and is beginning production based on pulp from wheat straw. The plant in Mannheim, Germany, is the first of its kind in Europe, and the first on a large-scale tissue production in the world.

The research project RUN (Rural Urban Nutrient Partnership) explores how waste might be used more efficiently as a resource. In this project, Veronika Fendel investigates how recyclable materials from biowaste and domestic wastewater can be fed back into the material cycle in the best possible way.

Start-up PROSERVATION - sustainable packaging - 21/09/2021

Husk as a substitute for polystyrene: packaging materials with a good conscience

Expanded polystyrene (EPS) packaging is very practical, but it is made from petroleum and is not very environmentally friendly in other ways either. Single-use plastic containers made of EPS have therefore been banned in the EU, but alternatives are also urgently needed. The Stuttgart-based start-up PROSERVATION has developed an ecological packaging material made from grain husks that could replace EPS and be just as effective.

As a rapidly growing renewable raw material, bamboo is an ideal substitute for wood. However, bamboo’s susceptibility to mold in damp conditions poses a problem. Researchers at Fraunhofer have now analyzed bamboo’s response to moisture under specific climatic conditions. By using simulation software, building owners can plan and implement measures to prevent the growth of mold.

In August 2021, the BioMat Pavilion 2021 was inaugurated on the campus of the University of Stuttgart in a ceremonial setting and in compliance with the hygiene concept. The core of the elegantly curved lightweight construction is an active-bending structure made of natural fibers, reminiscent of bamboo. It was developed as part of the "LeichtPRO" research project.

An international research team has calculated the potential for material efficiency strategies in residential buildings and passenger cars. Up to two-thirds of global emissions could be saved in these areas, provided that appropriate strategies are consistently implemented.

Plastics from the field - 12/08/2021

Great potential for biological residues

Huge amounts of waste are produced both during food production and by consumers. The Conversion Technologies of Biobased Resources group at the University of Hohenheim’s Institute of Agricultural Engineering has developed a process to convert this biomass into hydroxymethylfurfural (HMF), the highly potent basic chemical that is used to produce plastics.

Carbon dioxide is one of the main drivers of climate change – which means that we need to reduce CO2 emissions in the future. Fraunhofer researchers are highlighting a possible way to lower these emissions: They use the greenhouse gas as a raw material, for instance to produce plastics. To do this, they first produce methanol and formic acid from CO2, which they convert via microorganisms into building blocks for polymers and the like.

The Hallertau is Germany's largest hop-growing region. During harvesting, hop bine chaff is left over, which is converted into environmentally friendly bio natural gas on site in a biogas plant. But that is not the end of the utilization chain for this fiber plant. Researchers at the German Institutes of Textile and Fiber Research Denkendorf (DITF) have used the plant-containing biogas digestate to produce a composite material that can be…

Alpha-Protein GmbH - 27/07/2021

Insect farming for sustainability

Mealworms instead of fish meal and soybean meal - this is what the sustainable future of feed production looks like as Alpha-Protein GmbH see it. The company has built a highly efficient automated production plant in which residual materials from local food production are used to breed mealworms.

The "livMatS Pavilion" in the Botanical Garden of the University of Freiburg is a model for a bioinspired sustainable construction. In a joint project, researchers from the Universities of Freiburg and Stuttgart together with master’s students from the University of Stuttgart have designed a lightweight pavilion.

Refuels are renewable fuels that can be produced in different ways. When they are mixed and processed such that they meet the existing fuel standards, they are suited for all types of combustion engines. This is the result of the latest vehicle and fleet tests within the project “reFuels – Rethinking Fuels” at Karlsruhe Institute of Technology (KIT). Compared to fully fossil fuels, refuel mixes allow for a CO2 reduction by 25% at least. Moreover,…

The European Union is largely dependent on imports of white phosphorus (P4), a strategic raw material for the food and pharmaceutical industries. To tackle this challenge, the newly started four-year EU-funded project FlashPhos – led by the University of Stuttgart – will recover at a large scale high-quality white phosphorus and other raw materials using sewage sludge as input material.

Start-up kernique catch the zeitgeist - 29/06/2021

Nut snack as a sustainable ecological concept

A delicious vegan nut snack that uses no sugar, artificial additives, gluten or palm oil, is full of essential nutrients, and is part of a commitment to environmental and social sustainability. Impossible? An Esslingen-based start-up called kernique proves otherwise. The start-up is currently planning a crowdfunding phase that offers a lucrative deal for investors. The idea catches the zeitgeist, but what exactly makes it stand out?

It is not the first time that spiders have served as biological models in the research field of soft robotics. The hydraulic actuation mechanisms they apply to move their limbs when weaving their web or hunting for prey give them powers many roboticists and engineers have drawn inspiration from.

Microorganisms are the oldest, most abundant, and most diverse life forms on earth and offer enormous potential for biotechnological applications. To date, however, only a fraction of them could be isolated and cultivated. The “MicroMATRIX” research project, funded with € 1.5 million by the German Federal Ministry of Education and Research and led by Karlsruhe Institute of Technology (KIT), aims to shed more light on the microbial darkness.

The final report including comprehensive fact sheets of 25 applications is now available online in German and English.