Almost all materials and surfaces are coated with a coat of paint or varnish today. It improves appearances and protects the material from corrosion. However, very few are bio-based. And in the past, paints and varnishes with bio-based binders or film formers have either been too expensive or could not meet the requirements. But through the use of modified starch, scientists at the Fraunhofer IAP in Potsdam-Golm and the Fraunhofer IPA in Stuttgart have found a sustainable and cost-effective solution.

Sharp teeth and spiky stings are a common defense mechanism across the animal kingdom. However, plants are using thorns and spikes as well, to ward off herbivores and insects. And now botanists of Bonn University found out that the use of calcium phosphate incrustations to strengthen their defences is far more widespread among plants than previously thought.

Beech, or rather beech wood is on the rise in Germany and is even used to manufacture bioplastics. However, similar to other tree species, beech also has to cope with the changing climate, meaning increasing temperatures and prolonged periods of drought. The researchers hope that the complete analysis of the beech genome could enable the targeted breeding of more climate-stress tolerant beech trees.

While the packaging industry has been moving towards using more renewable materials for quite some time now, the electronic industry has yet to adopt that strategy. The outer layers of coffee machines, computers and other devices are still mostly made of petrol-based plastics.

The global population is growing while resources are decreasing. Thus, the hitherto predominant diet of the industrialized nations, where people cover up to 70% of their protein needs from animal sources, will therefore no longer be sustainable in the near future. Although proteins are a necessary part of our diet, they can be obtained from a variety of sources. In addition to conventional meat and fish products as well as protein-rich vegetables such as soybean, there is another excellent protein source: insects.

Huge amounts of packaging waste accrue every day and much of it ends up polluting our oceans. However, not only the large pieces of plastic are dangerous to the environment but also the much smaller pieces of microplastic. And yet, they are still widely used in cosmetic care products such as scrubs and wash peelings. Researchers at the Fraunhofer Institute for Microstructure of Materials and Systems IMWS now developed a bio-based and – perhaps even more importantly – biodegradable alternative. 

Specialty chemicals company Clariant and biotechnology company Global Bioenergies have announced the development of a new bio-based polymer of renewable isobutene for cosmetic creams and lotions. 

The wide-spread disappaerance of insects has many causes, including environmental toxins and climate change. But regarding the high bee mortality of the past years, there is another culprit: the Varroa mite. This parasite has infected almost all bee colonies. The mites suck at the larvae and bees and weaken them. In addition, the Varroa mite also transmits pathogens.

The so-called heterosis effect is not only well-known among plant breeders, but also very popular. It describes the fact that a crossbreed of two maize inbred lines provides a significantly higher yield than either of the two parent plants. However, until now it has been unclear which molecular mechanisms this effect is based on.

Evonik and Siemens have entered into a joint research project called Rheticus. Approximately 20 researchers from both companies will be working on electrolysis and fermentation processes for the next two years. The first test plant is scheduled to go on stream by 2021 at the Evonik facility in Marl, Germany. This plant produces chemicals such as butanol and hexanol – both of which are the basis for special plastics and food supplements.