TY - JOUR
T1 - Evaluation of a spray-dried lacticin 3147 powder for the control of Listeria monocytogenes and Bacillus cereus in a range of food systems
AU - Morgan, S. M.
AU - Galvin, M.
AU - Ross, R. P.
AU - Hill, C.
PY - 2001
Y1 - 2001
N2 - Aims: The potential of a powdered preparation of the bacteriocin, lacticin 3147, was investigated for the inhibition of Listeria monocytogenes and Bacillus cereus. Methods and Results: A 10% solution of reconstituted demineralized whey powder was fermented with Lactococcus lactis DPC3147 for the generation of a lacticin 3147 containing powdered product. A 99.9% reduction in L. monocytogenes numbers occurred in the presence of the lacticin 3147 powder within 2 h in natural yogurt, and an 85% reduction was observed in cottage cheese within the same time frame. Counts of B. cereus were reduced by 80% in soup, in the presence of 1% (w/w) lacticin 3147 powder, within 3 h. Conclusions: A powdered preparation of lacticin 3147 was effective for the control of Listeria and Bacillus in natural yogurt, cottage cheese and soup. Significance and Impact of the Study: The bioactive lacticin 3147 powder may find broad applications for control of Gram-positive pathogens/spoilage bacteria in a range of foods.
AB - Aims: The potential of a powdered preparation of the bacteriocin, lacticin 3147, was investigated for the inhibition of Listeria monocytogenes and Bacillus cereus. Methods and Results: A 10% solution of reconstituted demineralized whey powder was fermented with Lactococcus lactis DPC3147 for the generation of a lacticin 3147 containing powdered product. A 99.9% reduction in L. monocytogenes numbers occurred in the presence of the lacticin 3147 powder within 2 h in natural yogurt, and an 85% reduction was observed in cottage cheese within the same time frame. Counts of B. cereus were reduced by 80% in soup, in the presence of 1% (w/w) lacticin 3147 powder, within 3 h. Conclusions: A powdered preparation of lacticin 3147 was effective for the control of Listeria and Bacillus in natural yogurt, cottage cheese and soup. Significance and Impact of the Study: The bioactive lacticin 3147 powder may find broad applications for control of Gram-positive pathogens/spoilage bacteria in a range of foods.
UR - https://www.scopus.com/pages/publications/0034757671
U2 - 10.1046/j.1472-765X.2001.01016.x
DO - 10.1046/j.1472-765X.2001.01016.x
M3 - Article
C2 - 11696102
AN - SCOPUS:0034757671
SN - 0266-8254
VL - 33
SP - 387
EP - 391
JO - Letters in Applied Microbiology
JF - Letters in Applied Microbiology
IS - 5
ER -