World's Best Scientists 2026 revealed!
Award Badge
Microbiology
Norway
2026

D-Index & Metrics

Microbiology

D-Index
62
Citations
14918
World Ranking
2857
National Ranking
11

Research.com Recognitions

  • 2026 - Research.com Microbiology in Norway Leader Award
  • 2025 - Research.com Microbiology in Norway Leader Award

Overview

Per Einar Granum is affiliated with the Norwegian University of Life Sciences in Norway. Their research primarily spans the fields of Biochemistry, Genetics and Molecular Biology as well as Environmental Science. Within these main disciplines, their work delves into several subfields including Molecular Biology, Biotechnology, Ecology, Infectious Diseases, and Genetics.

The scientist's research topics focus largely on bacterial studies, with a significant emphasis on Bacillus and Francisella bacteria. Other notable areas of investigation include microbial inactivation methods, bacteriophages and microbial interactions, viral gastroenteritis research and epidemiology, Yersinia bacterium and plague research involving ectoparasites, and food-related identification and quantification techniques.

Per Einar Granum has published multiple scientific articles, several appearing in the journal Toxins. Recent papers include:

  • The Food Poisoning Toxins of Bacillus cereus (2021, Toxins)
  • The Bacillus cereus Food Infection as Multifactorial Process (2020, Toxins)
  • Bacillus cereus Toxins (2021, Toxins)

Among frequent co-authors are Erwin Märtlbauer, Richard Dietrich, Nadja Jeßberger, and Monika Ehling-Schulz.

Their publication record shows a concentration in the journal Toxins, with all listed recent papers published there.

Best Publications

  • From soil to gut: Bacillus cereus and its food poisoning toxins

    Lotte P. Stenfors Arnesen;Annette Fagerlund;Per Einar Granum

  • Bacillus cereus and its food poisoning toxins

    Per Einar Granum;Terje Lund

  • A new cytotoxin from Bacillus cereus that may cause necrotic enteritis.

    Terje Lund;Marie-Laure De Buyser;Per Einar Granum

  • What problems does the food industry have with the spore-forming pathogens Bacillus cereus and Clostridium perfringens?

    Annika Andersson;Ulf Rönner;Per Einar Granum

  • Clostridium perfringens and foodborne infections

    Sigrid Brynestad;Per Einar Granum

  • Characterisation of a non-haemolytic enterotoxin complex from Bacillus cereus isolated after a foodborne outbreak

    Terje Lund;Per Einar Granum

  • Emetic toxin formation of Bacillus cereus is restricted to a single evolutionary lineage of closely related strains

    Monika Ehling-Schulz;Birgitta Svensson;Marie-Helene Guinebretiere;Toril Lindbäck

  • Bacillus cytotoxicus sp. nov. is a novel thermotolerant species of the Bacillus cereus Group occasionally associated with food poisoning

    Marie-Hélène Guinebretière;Marie-Hélène Guinebretière;Sandrine Auger;Sandrine Auger;Nathalie Galleron;Nathalie Galleron;Matthias Contzen

  • Bacillus cereus and its toxins

    P.E. Granum

  • The sequence of the non-haemolytic enterotoxin operon from Bacillus cereus.

    Per Einar Granum;Kristin O'sullivan;Terje Lund

  • The Food Poisoning Toxins of Bacillus cereus

    Richard Dietrich;Nadja Jessberger;Monika Ehling-Schulz;Erwin Märtlbauer

  • Characterization of the Bacillus cereus Nhe enterotoxin.

    Toril Lindbäck;Annette Fagerlund;Marianne Skeie Rødland;Per Einar Granum

  • Genetic and functional analysis of the cytK family of genes in Bacillus cereus.

    Annette Fagerlund;Ola Ween;Terje Lund;Simon P. Hardy

  • Probes and polymerase chain reaction for detection of food-borne bacterial pathogens.

    J.E Olsen;S Aabo;W Hill;S Notermans

  • Prevalence, characterization and growth of Bacillus cereus in commercial cooked chilled foods containing vegetables

    C. Choma;C. Choma;M.H. Guinebretière;F. Carlin;P. Schmitt

  • Comparison of biological effect of the two different enterotoxin complexes isolated from three different strains of Bacillus cereus.

    Terje Lund;Per Einar Granum

  • The enterotoxin gene (cpe) of Clostridium perfringens can be chromosomal or plasmid-borne

    Emmanuel Cornillot;Brigitte Saint-Joanis;Georges Daube;Sei-ichi Katayama

  • Analysis of enterotoxin production by Bacillus cereus from dairy products, food poisoning incidents and non-gastrointestinal infections.

    Per Einar Granum;Sigrid Brynestad;John M. Kramer

  • Determination of the toxic potential of Bacillus cereus isolates by quantitative enterotoxin analyses.

    Maximilian Moravek;Richard Dietrich;Christine Buerk;Véronique Broussolle

  • Toxin-producing ability among Bacillus spp. Outside the Bacillus cereus group

    Cecilie From;Rudiger Pukall;Peter Schumann;Víctor Hormazábal

  • Research letterCharacterisation of a non-haemolytic enterotoxin complex from Bacillus cereus isolated after a foodborne outbreak

    Terje Lund;Per Einar Granum

Frequent Co-Authors

Christophe Nguyen-The
Christophe Nguyen-The University of Avignon
Monika Ehling-Schulz
Monika Ehling-Schulz University of Veterinary Medicine Vienna
Juan M. Tomás
Juan M. Tomás University of Barcelona
Didier Lereclus
Didier Lereclus University of Paris-Saclay
Tjakko Abee
Tjakko Abee Wageningen University & Research
Siegfried Scherer
Siegfried Scherer Technical University of Munich
Jacques Mahillon
Jacques Mahillon Université Catholique de Louvain
Even Heir
Even Heir Norwegian Institute of Public Health
Oscar P. Kuipers
Oscar P. Kuipers University of Groningen

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Pursuing a degree in Microbiology can open doors to various healthcare and research careers. For those interested in broadening their expertise, exploring online healthcare degrees that pay well can provide valuable insights into the most lucrative and in-demand fields connected to microbiology.

Many students seek flexible and accessible programs, making easy admission online MPH programs a popular choice. These programs can complement microbiology knowledge with public health skills, enhancing career options in disease prevention and community health.

Beyond traditional science roles, graduates might consider specialized careers like child life specialists, where understanding of biology and healthcare environments is beneficial. To understand the financial prospects in this area, reviewing how much does a child life specialist make offers useful salary information that can guide career decisions.

Inclusivity in education is vital. For individuals with diverse backgrounds, including those wondering what can a felon go to college for, there are supportive online degree options. These pathways ensure that more students have access to microbiology and related healthcare careers, regardless of past challenges.

Best Scientists Citing Per Einar Granum

Trending Scientists

Recently Published Articles