Lysis of Lactococcus lactis subsp. cremoris SK110 and Its Nisin-Immune Transconjugant in Relation to Flavor Development in Cheese
AUTOR(ES)
Meijer, Wilco
FONTE
American Society for Microbiology
RESUMO
To develop a nisin-producing cheese starter, Lactococcus lactis subsp. cremoris SK110 was conjugated with transposon Tn5276-NI, which codes for nisin immunity but not for nisin production. Cheese made with transconjugant SK110::Tn5276-NI as the starter was bitter. The muropeptide of the transconjugant contained a significantly greater amount of tetrapeptides than the muropeptide of strain SK110, which could have decreased the susceptibility of the cells to lysis and thereby the release of intracellular debittering enzymes.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=106258Documentos Relacionados
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