Photo of Johanna Björkroth
  • PL 66 (Agnes Sjöbergin katu 2), A4018



  • PL 66 (Agnes Sjöbergin katu 2)



1992 …2018
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Personal profile

Description of research and teaching

Key research interests

Cold-tolerant LAB and Enterobacteriaceae as food spoilage organisms

Food safety aspects of cold-tolerant bacterial communities

Taxonomy and species diversity of psychrotrophic LAB and Enterobacteriaceae

Metabolic pathways associated with food spoilage

Contamination routes of spoilage bacteria in food processing

Adaptation and survival of food spoilage bacteria

Genomics, metagenomics and metatranscriptomics of food spoilage populations


Intrinsic and extrinsic factors related to microbial growth in foods

Microbial taxonomy and classification

Sensory evaluation and microbial analyses of foods for quality determination

Contamination of foods with spoilage microbes

Microbial ecology of foods


Curriculum vitae

Short curriculum vitae

Education and training

Doctor of Veterinary Medicine (Finnish ELL) College of Veterinary Medicine, Helsinki, Finland 1990

PhD  (Finnish ELT) Faculty of Veterinary Medicine, University of Helsinki 1997

Certificate of Proficiency in English, University of Cambridge, Local Examinations Syndicate 1997                     

Approbatur studies in university pedagogics, University of Helsinki 2002

Diplomate of the European College of Veterinary Public Health 2005

Specialist degree in leadership training (JET-koulutus, Haaga-Perho) 2006

The National Defence Course 188 / 2009

Academic posts

Assistant veterinarian (assistentti) 1997

Senior assistant veterinarian (yliassistentti) 1998

Docent in Food Hygiene (elintarvikehygienian dosentti) 1999

Professor of Food Hygiene (elintarvikehygienian professori) 2002

Main positions of trust

Vice-Rector, research and researcher training 2008-2013

The first Vice Dean of the Faculty of Veterinary Medicine 2004-2007

Fields of Science

  • 413 Veterinary science
  • 1183 Plant biology, microbiology, virology
  • 416 Food Science

International and National Collaboration Publications and projects within past five years.

Publications 1992 2018

Open Access

Exploring lot-to-lot variation in spoilage bacterial communities on commercial modified atmosphere packaged beef

Säde, E. J., Penttinen, K., Björkroth, K. J. & Hultman, J. J., Apr 2017, In : Food Microbiology. 62, p. 147–152 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access


Silver medal of the University of Helsinki

Johanna Björkroth (Recipient), 8 Sep 2014

Prize: Prizes and awards

Walter Ehrström bronze medal

Johanna Björkroth (Recipient), 9 Aug 2014

Prize: Prizes and awards

Activities 1998 2019

Ruokavirasto (External organisation)

Johanna Björkroth (Board member)
23 Jan 201931 Dec 2020

Activity: Membership typesMembership or other role in national/international committee, council, board

MATINE (External organisation)

Johanna Björkroth (Board member)
1 Dec 20191 Dec 2022

Activity: Membership typesMembership or other role in national/international committee, council, board

Microbial spoilers in food

Johanna Björkroth (Attendee)
28 Jun 201730 Jun 2017

Activity: Participating in or organising an event typesPublic Talks

EVIRA (Finnish Food Safety Authority Evira) (External organisation)

Johanna Björkroth (Board member)
1 Mar 201731 Dec 2018

Activity: Membership typesMembership or other role in national/international committee, council, board

PhD thesis of Amelie Rougier

Johanna Björkroth (Opponent)
27 Jul 2017

Activity: Examination typesOpponent of doctoral dissertation