Fast and slow milk-coagulating variants of Lactobacillus helveticus HLM 1

Can J Microbiol. 1986 Sep;32(9):758-60. doi: 10.1139/m86-138.

Abstract

Slow milk-coagulating variants were isolated from Lactobacillus helveticus HLM 1, a fast strain which coagulates milk in 16 h at 42 degrees C. Variants were isolated after subculturing in reconstituted skim milk or complex broth media. Analysis of plasmid content revealed that in slow variants a 3.5-megadalton plasmid was missing.

MeSH terms

  • Animals
  • Genetic Variation
  • Lactobacillus / classification*
  • Lactobacillus / genetics
  • Milk
  • Plasmids