期刊
JOURNAL OF FUNCTIONAL FOODS
卷 36, 期 -, 页码 357-361出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jff.2017.07.018
关键词
Probiotic; Lactobacillus; Interspecies inhibition; Isothermal microcalorimetry
Lactobacillus plantarum, Lactobacillus rhamnosus, Lactobacillus acidophilus and Enterococcus faecium, which are the component species of a commercially available probiotic mixture (Symprove (R), P1), were grown in co-culture to determine whether they would inhibit each other in vitro using an isothermal microcalorimeter (IMC). The growth profiles in the IMC were characteristic and unique to each species while the growth profile of P1 was most similar to that of L plantarum, suggesting this is the dominant organism in mixed-culture. Bacterial growth in the cell free supernatants (CFS) of the probiotic species were also evaluated by IMC and viable counts determined. L plantarum was found to be the most effective species at inhibiting L rhamnosus. Conversely, L rhamnosus was the most effective at limiting the growth of L plantarum. Both L plantarum and L rhamnosus were inhibitory toward L acidophilus and E. faecium. E. faecium was the least inhibitory towards all the other species. (C) 2017 Elsevier Ltd. All rights reserved.
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