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Bacteria stress responce to high pressure processing

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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  1. Bacteria stress responce to high pressure processing Tine Bergitte Heggernes Supervisor: NadavSkjøndal-Bar Project withNofima – Måltidets Hus, Stavanger Project Autumn 2013, Tine Bergitte Heggernes

  2. 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

  3. 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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