Research Output per year
Personal profile
Description of research and teaching
Our research is focused on molecular biology and functional genomics of non-pathogenic (dairy starters, probiotic lactobacilli, propionibacteria) and pathogenic bacteria (streptococci, staphylococci) that are adapted to food-environment.
We exploit gene and omics-level approaches combined with microbiological and biochemical analyses to study cell-physiology in beneficial and pathogenic bacteria in diverse food systems and materials. The ultimate goal of these research projects is to provide novel information to gain maximal benefit of beneficial bacteria as well as to combat pathogens in foods.
Fields of Science
- 416 Food Science
- 412 Animal science, dairy science
- 1183 Plant biology, microbiology, virology
- 1182 Biochemistry, cell and molecular biology
International and National Collaboration
Publications and projects within past five years.
Publications
Growth Mode and Carbon Source Impact the Surfaceome Dynamics of Lactobacillus rhamnosus GG
Savijoki, K., Nyman, T. A., Kainulainen, V., Miettinen, I., Siljamäki, P., Fallarero, A., Sandholm, J., Satokari, R. & Varmanen, P., 5 Jun 2019, In : Frontiers in Microbiology. 10, 17 p., 1272.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access
File
Acidipropionibacterium virtanenii sp. nov., isolated from malted barley
Deptula, P., Smolander, O-P. A., Laine, P. K. S., Roberts, R. J., Edelmann, J. M., Peltola, P., Piironen, V. I., Paulin, L. G., Storgårds, E., Savijoki, K., Laitila, A., Auvinen, P. O. V. & Varmanen, P. K., Oct 2018, In : International Journal of Systematic and Evolutionary Microbiology. 68, 10, p. 3175-3183 9 p.Research output: Contribution to journal › Article › Scientific › peer-review
De novo assembly of genomes from long sequence reads reveals uncharted territories of Propionibacterium freudenreichii
Deptula, P., Laine, P. K., Roberts, R. J., Smolander, O-P., Vihinen, H., Piironen, V., Paulin, L., Jokitalo, E., Savijoki, K., Auvinen, P. & Varmanen, P., 16 Oct 2017, In : BMC Genomics. 18, 24 p., 790.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access
File
BluB/CobT2 fusion enzyme activity reveals mechanisms responsible for production of active form of vitamin B 12 by Propionibacterium freudenreichii
Deptula, P., Kylli, P. T., Chamlagain, B. S., Holm, L. U. T., Kostiainen, R. K., Piironen, V. I., Savijoki, K. K. & Varmanen, P. K., 23 Nov 2015, In : Microbial Cell Factories. 14, 12 p., 186 .Research output: Contribution to journal › Article › Scientific › peer-review
Open Access
File
Genomics and Proteomics Provide New Insight into the Commensal and Pathogenic Lifestyles of Bovine- and Human-Associated Staphylococcus epidermidis Strains
Savijoki, K., Iivanainen, A., Siljamaki, P., Laine, P. K., Paulin, L., Karonen (os. Miettinen), T., Pyörälä, S., Kankainen, M., Nyman, T. A., Salomaki, T., Koskinen, P., Holm, L., Simojoki, H., Taponen, S., Sukura, A., Kalkkinen, N., Auvinen, P. & Varmanen, P., Aug 2014, In : Journal of Proteome Research. 13, 8, p. 3748-3762 15 p.Research output: Contribution to journal › Article › Scientific › peer-review
Projects
Molecular basis for natural vitamin B12 fortification of emerging new foods by utilization of Propionibacterium freudenreichii
Piironen, V., Loivamaa, I., Edelmann, M., Chamlagain, B., Savijoki, K. & Varmanen, P.
01/09/2019 → 31/08/2023
Project: Research project
Utaretulehdus ja antibioottiresistenssi − mikä on kalvovesikkeleiden rooli?
Siljamäki, P., Savijoki, K., Varmanen, P., Taponen, S. & Nyman, T.
01/05/2018 → 31/12/2020
Project: Research project
BIOB12: Vitamin B12-bioenriched wheat bran ingredients for food applications (BIOB12)
Piironen, V., Chamlagain, B., Edelmann, M., Varmanen, P. & Katina, K.
01/07/2018 → 30/06/2019
Project: Research project
BIOFORCE: Bio-enriched bran ingredients - in situ synthesis of vitamin B12 and folate with propionibacteria and lactic acid bacteria
Piironen, V., Varmanen, P., Chamlagain, B., Edelmann, M. & Katina, K.
01/03/2017 → 31/03/2018
Project: Research project
Bugsy: Leikkausalueen patogeenien tunnistus metagenomiikan menetelmiä hyödyntäen (Bugsy)
Kankainen, M., Holm, L., Kankuri, E., Varmanen, P., Savijoki, K., Ojala, T., Medlar, A. & Vuola, J.
01/09/2015 → 31/08/2019
Project: Research project
Activities
Review of PhD-thesis
Pekka Varmanen (Pre-examiner)
2018
Activity: Examination types › Member of doctoral thesis committee / follow-up group
Review of a research project -proposals
Pekka Varmanen (Participant)
2017
Activity: Other activity types › Other
12th International Symposium on Lactic Acid Bacteria
Pekka Varmanen (Poster Presentation)
27 Aug 2017 → 31 Aug 2017
Activity: Participating in or organising an event types › Organisation and participation in conferences, workshops, courses, seminars
Review of a research project -proposals
Pekka Varmanen (Participant)
2016
Activity: Other activity types › Types for other activities - Other
Microbial biofilms: environmental, pharmaceutical, medical & industrial research in Finland
Pekka Varmanen (Speaker: Presenter)
26 Jan 2016
Activity: Participating in or organising an event types › Organisation and participation in conferences, workshops, courses, seminars
Press / Media
A novel bacterial species named after the Finnish Nobelist A.I. Virtanen
Paulina Deptula, Pekka Varmanen, Petri Olli Viljami Auvinen & Vieno Irene Piironen
30/08/2018
1 Media contribution
Press/Media: Press / Media
Fermentointi tuottaa leipään B-vitamiinia
Vieno Piironen & Pekka Kristian Varmanen
12/01/2017
1 Media contribution
Press/Media: Press / Media
Tutkijat kehittivät tavan tuottaa tärkeää B12-vitamiinia – ilouutinen kasvissyöjille
Vieno Piironen & Pekka Kristian Varmanen
10/01/2017
1 Media contribution
Press/Media: Press / Media
Vegaanit pois pilleripakosta – uusi menetelmä kehittää vain eläinkunnan tuotteista saatua vitamiinia kasvisravintoon
Vieno Piironen & Pekka Kristian Varmanen
09/01/2017
1 Media contribution
Press/Media: Press / Media