Effect of Nitrogen Flushing on the Production of Proteinase by Psychrotrophic Bacteria in Raw Milk

@inproceedings{Murray1983EffectON,
  title={Effect of Nitrogen Flushing on the Production of Proteinase by Psychrotrophic Bacteria in Raw Milk},
  author={Susan Murray and K. K. H. Kwan and Brent J. Skura and Robin C. Mckellar},
  year={1983}
}
  • Susan Murray, K. K. H. Kwan, +1 author Robin C. Mckellar
  • Published 1983
  • Chemistry
  • Raw milk was flushed with 100 ml N2 min -1 during storage at 4°C. Microflora (total psychrotrophs, proteolytic psychrotrophs, lactic acid bacteria) in nitrogen-flushed milk exhibited a longer lag phase and slower growth rates than those in milk stored aerobically at 4°C. Although proteolytic psychrotrophs grew in nitrogen-flushed milk, proteinases could not be detected in these milk samples. Proteinase assays and electrophoresis showed extensive proteolytic activity and hydrolysis of β-casein… CONTINUE READING

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