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Fungi to convert waste materials into food, feed

Swedish research to use fungi to convert processing wastes into food and animal feed products.

November 29, 2018

2 Min Read
Fungi to convert waste materials into food, feed
University of Boras

Processing wastes become resources in the project Ways2Taste, where researchers at the University of Borås in Sweden are developing methods for growing fungi on material that would otherwise have become waste. The goal is to produce climate-smart materials, including a whole new source of protein.

According to the announcement, two of the world's major environmental challenges are a lack of resources and growing waste production. At the university, there is a unique research environment that addresses both of these issues using fungi that convert residuals and wastes from companies and households to food, feed and biofuels.

"We usually say there is no waste, only resources, but our knowledge is not enough to utilize these resources. Ways2Taste is a new way of dealing with what would otherwise be waste," said Mohammad Taherzadeh, project leader and professor in bioprocess technology at the University of Borås.

Also participating in the project is the food and nutrition science department at Chalmers University of Technology in Sweden, as well as 18 regional companies. The project is funded by the European Regional Development Fund.

The waste products used in Ways2Taste come from bakeries, ice cream factories, breweries, feed companies and food stores, the university said. They are divided into three categories: from relatively pure, such as day-old bread from bakeries, to really dirty, such as slaughterhouse byproducts and fertilizers.

The researchers will investigate how, via different processes, fungi can be grown on the waste to produce a fungal biomass. From this, several different end products can be created, including food.

"It will be a climate-smart protein that can look like, for example, ground beef, but we will also work on producing pigments, bioplastics, animal feed and ethanol," Taherzadeh said.

A goal of Ways2Taste is to go one step further when it comes to resource recovery than biogas production, incineration or composting.

"The difference is that we can develop new materials and not only solely use the waste products as an energy source. Many materials will be scarce in the future, and our process can play an important role," he said.

In the longer term, the research group wants to build a fungi center in Borås, Sweden.

"We want to be able to work nationally to develop useful fungi and help companies to use fungi in their production," Taherzadeh said.

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