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  • Schöpping, Marie,1991Chr. Hansen Holding A/S,Chalmers tekniska högskola,Chalmers University of Technology (författare)

Identifying the essential nutritional requirements of the probiotic bacteria Bifidobacterium animalis and Bifidobacterium longum through genome-scale modeling

  • Artikel/kapitelEngelska2021

Förlag, utgivningsår, omfång ...

  • 2021-12-09
  • Springer Science and Business Media LLC,2021
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:research.chalmers.se:fbfea336-039c-415d-aa58-5fa29cfb3426
  • https://research.chalmers.se/publication/527755URI
  • https://doi.org/10.1038/s41540-021-00207-4DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

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Klassifikation

  • Ämneskategori:art swepub-publicationtype
  • Ämneskategori:ref swepub-contenttype

Anmärkningar

  • Although bifidobacteria are widely used as probiotics, their metabolism and physiology remain to be explored in depth. In this work, strain-specific genome-scale metabolic models were developed for two industrially and clinically relevant bifidobacteria, Bifidobacterium animalis subsp. lactis BB-12® and B. longum subsp. longum BB-46, and subjected to iterative cycles of manual curation and experimental validation. A constraint-based modeling framework was used to probe the metabolic landscape of the strains and identify their essential nutritional requirements. Both strains showed an absolute requirement for pantethine as a precursor for coenzyme A biosynthesis. Menaquinone-4 was found to be essential only for BB-46 growth, whereas nicotinic acid was only required by BB-12®. The model-generated insights were used to formulate a chemically defined medium that supports the growth of both strains to the same extent as a complex culture medium. Carbohydrate utilization profiles predicted by the models were experimentally validated. Furthermore, model predictions were quantitatively validated in the newly formulated medium in lab-scale batch fermentations. The models and the formulated medium represent valuable tools to further explore the metabolism and physiology of the two species, investigate the mechanisms underlying their health-promoting effects and guide the optimization of their industrial production processes.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Gaspar, PaulaChr. Hansen Holding A/S (författare)
  • Neves, Ana RuteChr. Hansen Holding A/S,Arla Foods (författare)
  • Franzén, Carl Johan,1966Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)franzen (författare)
  • Zeidan, Ahmad A.Chr. Hansen Holding A/S (författare)
  • Chr. Hansen Holding A/SChalmers tekniska högskola (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:npj Systems Biology and Applications: Springer Science and Business Media LLC7:12056-7189

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