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n this work, PCR primers P8 and P9 were used for amplification of a 320 bp long PCR product specific to the nisin gene. The PCR product was labelled with digoxigenine during amplification and used as ...
In this study, bacteriocin producing lactococcal strains were isolated from Turkish raw milk samples. Among these isolates, LL27 had the highest inhibition activity against Gram-positive indicator str...
A natural lactococcal isolate, Lactococcus lactis ssp. cremoris Ropy352, has been previously shown to express two phenotypically distinct exopolysaccharides (ropy and mucoid). This natural isolate was...
Lactococcus lactis contains a chromosomal gene (pip) for a membrane protein that serves as a receptor for the prolate bacteriophage c2 and other phages of the c2 species. A mutated allele of this rece...
Antibodies against six phages of Lactococcus lactis were produced in six bovine colostra. Each colostrum neutralized its homologous phage. In addition, each colostrum neutralized a different phage fro...
This study investigated peptide accumulation and bitterness in reduced- and full-fat Cheddar cheeses that were manufactured with single-strain Lactococcus lactis starters that had distinct cell envelo...
Strains of Lactococcus lactis ssp. lactis and Lactococcus lactis ssp. cremoris were cultured under aerobic and anaerobic conditions on plates of whey agar, Elliker agar, and M17L agar at 15, 20, and 3...
The associative growth of a proteinase-positive strain of Lactococcus lactis ssp. lactis CNRZ 1076 and Leuconostoc mesenteroides ssp. mesenteroides UM10 in reconstituted skim milk was studied in detai...
The objective of this study was to construct a food-grade, phage-resistant strain of Lactococcus lactis by replacing a specific chromosomal gene with an allele that had been mutated in vitro. Lactococ...
The effect was studied of trisodium citrate addition on the growth and formation of diacetyl and acetoin by Lactococcus lactis ssp. lactis CNRZ 483 in a whey-based medium under an oxygen pressure of 2...
Intracellular peptidases were extracted from the cell lysate of Lactococcus lactis ssp. cremoris SK11 that had been grown in milk. Peptidase activities were determined using 12 synthetic derivatives o...
Twenty-four mixed cultures of nonisogenic proteinase-positive and proteinase-negative strains of Lactococcus lactis (initial ratio, 1:9) were grown in milk. The proteinase-negative strains were system...
This study illustrated the effect of controlled oxygenation on diacetyl production by citrate-utilizing Lactococcus lactis ssp. lactis CNRZ 483. Effects of soluble oxygen concentrations at 21 and 50% ...
Commercial cheese products were surveyed for ß-casomorphin peptides. Two extraction methods were compared: 1) water and 2) chloroform and methanol. Peptide profiles were determined using reverse...
A caseolytic proteinase with low activation energy was purified to homogeneity by conventional chromatographic techniques from Lactococcus lactis ssp. lactis IAM 1198. The molecular weight of the enzy...

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