Bacteria stress responce to high pressure processing
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Bacteria stress responce to high pressure processing. Tine Bergitte Heggernes Supervisor: Nadav Skjøndal -Bar Project with Nofima – Måltidets Hus, Stavanger. Motivation and objectives. HPP - relatively new food processing technique .

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Bacteria stress responce to high pressure processing

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Bacteria stress responce to high pressure processing

Bacteria stress responce to high pressure processing

Tine Bergitte Heggernes

Supervisor: NadavSkjøndal-Bar

Project withNofima – Måltidets Hus, Stavanger

Project Autumn 2013, Tine Bergitte Heggernes


Motivation and objectives

Motivation and objectives

  • HPP -relativelynewfood processing technique.

  • Avoidqualitydegradation-bothkilling bacteria and gentle to food

  • More knowledge about how microorganisms react to stresses  Easier to prevent their growth

  • Listeria monocytogenes

  • The bacteria response - change of gene expressions and mechanisms in the cell when stressed.

  • Determine up to 5 potential marker genes involved in resistance

  • Find good models which predicts bacteria inhibition from high pressure processing

Bacteria stress responce to high pressure processing


Results and future work

Results and futurework

Genes involved in the bacteria cell membrane and cold shock genes

Choose the most important genes from these mechanisms

Preferably genes which are easily targeted and/or hub genes

Bacteria stress responce to high pressure processing


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