Food

The world's population is growing, and the UN expects we will be close to 10 billion people by 2050. So if we are to feed many more people, we need to make food production more sustainable.

Kim Wejendorp and Joshua David Evans are using their experience from some of Denmark's highest ranking Michelin-starred restaurants to experiment with new, sustainable food products with broad appeal. Photo: Thomas Steen Sørensen

Currently, global food production accounts for a quarter of the world’s total CO2 emissions, of which livestock in particular account for a large share.

Primary focus areas at DTU

The work on the green transition of food production includes various initiatives:

Technology and digital solutions can help make better use of resources in food production. This applies both in agricultural production and when the food is later processed in dairies, slaughterhouses, and other companies. Here, lower energy consumption, less food waste, the use of residual products, and new climate-friendly forms of packaging—that may even be eatable—help to boost sustainability. Some of the technological solutions include biotechnology, which utilizes living organisms such as bacteria, fungi, and yeast cells to produce food. We know this from bread, beer and cheese, and biotechnology can help improve and make many other food products, technologies, and processes sustainable.

The development of new and better foods focus in particular on finding alternatives for meat and dairy products. These can be foods made from plants or microbial foods. Microbial foods are based on microorganisms or stem cells, and can either be eaten directly, used as an ingredient, or included in the process of making food, for example to ferment. Stem cells are the basic stage of all cells before they become specialised as muscle or fat cells. They can therefore be used as components in sausages and pâté, where they will ensure the flavour we know without the use of meat.



Food safety is in focus in all efforts to increase food sustainability. The new foods must not contain substances that are harmful to health and must not, for example, cause new food allergies.

The many approaches in research into sustainable food require expertise in a wide range of fields. This includes knowledge of nutrition, chemistry, microbiology, and epidemiology, as well as mathematical modelling and technology to create new technological solutions. 
Hands that scoop up handfuls of apple pulp

Contact our experts in food research

Tine Hald is an epidemiologist with expertise in foodborne diseases including zoonoses and antimicrobial resistant bacteria. 

Her research focuses on source attribution and quantitative risk assessments. Her work takes a One Health approach to optimize animal, human and environmental health. She advises Danish and international food and health organisations, including WHO and EFSA.

Morten Sommer works with microbial foods that can help make our food production more sustainable.

His research involves academic fields such as microbiology, data science, synthetic biology and gastronomy. Together, they contribute to the development of new products and new technologies for food production. He holds more than 50 patents and is co-founder of several companies.


Anne S. Meyer is an expert in enzyme technology, and investigates enzymes that can used to improve processes and products in food, agriculture, climate and environment.

Her research includes new biotechnological methods that can be applied to create plant-based foods as an alternative to animal protein sources, biorefining of seaweed, or using residues from current food production to develop dietary fibres with health-promoting properties. 

FAQ

See our answers to frequently asked questions about food production.

Sustainable food production ensures we produce food in a way that meets our current food needs without destroying the ability of future generations to meet their food needs. That means that in food production, we must use resources efficiently, minimize the environmental impact, reduce waste and the volume of waste, and ensure that the methods and ingredients we use are responsible and sustainable in the long term. 

Food production contributes to climate change through greenhouse gas emissions from agriculture, livestock production, and food processing. This includes methane from livestock, such as cows, CO2 from agricultural machinery’s consumption of fossil fuels, energy consumption in processing processes, and food transport. Researchers are working to develop and implement ways to reduce these emissions, including creating more efficient production methods and alternative protein sources with a lower carbon footprint.

Climate-friendly foods are products that are produced with a lower carbon footprint than traditional foods. This can be achieved through methods that reduce greenhouse gas emissions, minimize energy and water consumption, or promote the use of sustainable raw materials. 

Research into food production is important in several different areas. First and foremost, research can improve the efficiency of food production to make it more sustainable. It can also help us learn more about how different foods affect our health, just as it can contribute to making our food safe, nutritious, and of high quality.
Food production research ranges widely, from the development of new food products and technologies to studies of food safety, sustainability, and nutrition. Some of the major research areas are biotechnology and microbial foods where scientists work to improve existing foods, for example through fermentation, or create new types of food that are updated versions of the foods we already know.

Nutrition research is important to understand how different nutrients affect human health and well-being. The research helps develop dietary recommendations, prevent nutrition-related diseases, and improve the nutritional content of foods.
It also enables us to develop dietary guidelines that cater to population groups with special nutritional needs, such as children, the elderly, or pregnant women. 

Food should be safe to eat: It should be free from physical contaminants such as hair, plastic pieces, etc. and not contain harmful amounts of microorganisms or chemical substances. To ensure compliance with food safety rules, the Danish Veterinary and Food Administration and the companies themselves control the food chain - from production and processing to distribution and consumption.
Novel foods can be what we have not previously used as food for humans or products that have been developed using new technologies. These could include alternative protein sources such as insects and lab-grown meat.
It can also be functional foods with health-promoting properties, such as yogurt with probiotics, foods developed for specific dietary needs, or foods designed to reduce the impact on the climate and the environment, for example plant-based meat and dairy alternatives, such as oat drink with added calcium.

Microbial foods are foods based on microorganisms, which include bacteria, microalgae, fungi and yeast cells. The use of microorganisms can be divided into three main categories:

  • Direct as food: Here the microorganisms are used directly in the food. For example, in the production of Quorn, which is made from a special fungus that has been dried and mixed with egg or potato protein to give it a chicken-like flavour.
  • Fermentation: A fermentation process in which microorganisms are used to enhance flavour, such as in kimchi or sauerkraut, to increase shelf life by inhibiting harmful bacteria and to increase the nutritional content of food.
  • Novel food ingredients: Microorganisms are used in processes to create new types of food, such as lab-grown meat.

Biotechnology is the application and manipulation of biological systems, living organisms, or their components. Biotechnology is used in food production to develop or improve products, technologies, and processes.

Bacteria, microalgae, fungi, and yeast are just some of the living microorganisms that researchers exploit in biotechnology. Microbes’ products, for instance, include various proteins, including enzyms and antibodies. For example, enzymes are used to give bread a crispier crust.

Biotechnology is used, among other things, for advanced foods. These can be bio-based ingredients such as sweeteners, colourings and flavourings. Or fermentation technology, which is used to produce cheese, yoghurt and cider.

Create the foods of the future

Engineering educations at DTU