Aarhus Universitets segl

Cellular milk for sustainable milk production

Main subject area: Cell biology and sustainable milk production

Short project description

Milk from dairy cows provides essential nutrients as part of the diet, and people have a central need for this food. However, dairy cows account for approximately 75% of Danish agricultures emission of the greenhouse gas, methane. One biological approach for reducing greenhouse gas emission is to produce milk in a sustainable way – by in vitro biotechnology instead of dairy cows.

The aim of the master project is to establish animal cell models for in vitro milk production. Mammary epithelial cells are isolated from either the udder of a slaughtered cow or non-invasive from cows milk. Cells are grown in culture medium, differentiated into mammary secreting cells that produce a milk secretome similar to milk from cells in the mammary gland in vivo. We have obtained mammary cells from eight cows and these cells can be growth in cultures. The master project can be focused on different aspects of the cellular milk production, such as cell viability, growth and differentiation factors, or sustainable plant-based culture medium.

Department and supervisor

Stig Purup

Seniorforsker Institut for Husdyr- og Veterinærvidenskab - ANIVET Sundhed for tarm og vært (GHH)

Project start

To be decided in agreement with the supervisor.


Physical location of project and students work

The practical work will take place at Department of Animal- and Veterinary Sciences, AU Viborg - Forskningscenter Foulum, DK-8830 Tjele.

Extent and type of project

45 or 60 ECTS projects are possible, but 60 ECTS is preferred. This project will be designed and planned in collaboration with the master student, and the student will analyse his/her own data. The MSc student is invited as a co-author if results are being published. No experience with cell-based assays is required.

Additional information

The master project will be connected to our ongoing research project: “What do we drink in 2030? In vitro milk based on cultured cells.” A number of people is driving from Aarhus to Research Centre Foulum every day, so transport should be possible without having a car.

Co-Supervisor