Degree project - Flow cytometry for rapid microbial analysis of process samples
Job description
Goal
The aim of this thesis is to evaluate and optimize the use of flow cytometry for microbial analysis of process samples from the pulp and paper industry.
Background
At Billerud, we are convinced that working together with other companies, universities and research institutes is the best way to tap into new thinking concerning improved packaging materials in a circular approach. The purpose of the department Innovation, Product and Application Development (IPAD) is to create new materials that can replace fossil-based materials with more sustainable alternatives based on forest raw materials. The major challenge for cellulosic materials is to improve certain properties, such as extensibility, strength or barriers to water vapour and other gases and to produce these materials in a resource and energy efficient way without impairing product safety.
Within the area of microbiology, the following challenge has been identified:
The demands related to product safety are high and one important factor is microbiology where the upper limit in the final board is well regulated. The microbiological analysis time for board samples is 48-72 h. Therefore, it is crucial to follow process parameters from a microbiological perspective and predict the result of the microbial load in the final board. One key process parameter for the prediction would be the microbial load in process samples however, that would require a rapid and reliable analysis method. The potential of flow cytometry to act as a rapid and reliable analysis method for process samples from the pulp and paper industry is yet to be evaluated.
Project
The work that will be carried out involve the following activities:
- Literature study on flow cytometry and microbiology for the pulp and paper industry
- Analysis of process samples using flow cytometry
- Compare flow cytometry results with results from conventional analysis
Timetable
The project preferably starts in September 2025 (or according to agreement). A detailed schedule will be defined together with the candidate.
Location
Location is at Billerud mill in Frövi.
Qualifications
To be able to successfully contribute to this degree project, we believe that you are a master student in biomedical science, chemical engineering or equivalent. To be able to carry out the practical part of the degree project, you need to be present in our laboratories at Billerud Frövi.
Personal qualities
You are a problem solver who can learn new knowledge quickly and is able to use current knowledge in flexible ways. You are also result oriented and can adjust behavior quickly and effectively to meet a goal, overcome an objection, or resolve a concern and have the ability to develop short- and long-range plans that are comprehensive and realistic.
Our values are central in our business and we believe that you recognize yourself in: we care for each other and we do what we say.
Contact
For any questions, please contact Sandra Winestrand, sandra.winestrand@billerud.com or Gilbert Carlsson, gilbert.carlsson@billerud.com .
Application information
Candidates apply with the Billerud application system by submitting a resume, cover letter and grades. Please note that our system only allows 2 document uploads, therefore we kindly ask you to combine 2 of the 3 requested documents.
Do you want to help create a sustainable future through your work?
At Billerud, we are fully committed to reduce our and our customers carbon footprint by offering high-performance paper and packaging materials. We are convinced that the right solutions can be important tools to help fight climate change. That's why we see it as our responsibility to enable the best packaging choices, for a better tomorrow.
Our proud history in the forestry and paper industry goes back more than 150 years. Since then, we’ve grown to what we are today: a world leading company in high-performing paper and packaging materials - passionately committed to sustainability, quality, and customer value. Our materials are the basis of packaging and paper products used by millions of people around the world, 24 hours a day, all year round.
We serve customers in more than 100 countries through our three business areas Liquid Packaging Board, Paper and Paper Board. Our nine production units are located in Sweden, USA, and Finland and we have around 6,000 employees in 19 countries. Our annual turnover is approximately SEK 41.2 billion and the share is listed on Nasdaq Stockholm. At Billerud we always put safety first, care for each other, and do what we say.
