Purification and Some Properties of Diplococcin from Streptococcus cremoris 346.

  title={Purification and Some Properties of Diplococcin from Streptococcus cremoris 346.},
  author={Greg Davey and Bruce C. Richardson},
  journal={Applied and environmental microbiology},
  volume={41 1},
Eleven of 150 Streptococcus cremoris strains examined produced the bacteriocin diplococcin. The diplococcin activity spectrum was restricted to S. cremoris and Streptococcus lactis strains, and none of a wide range of other gram-positive or gram-negative strains were inhibited. The diplococcin produced by S. cremoris 346 was purified by ammonium sulfate precipitation and column chromatography. Purified diplococcin was very unstable at room temperature and lost 75% of its activity after heating… CONTINUE READING

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