Introduction: Probiotics Generally Recognized as Safe (GRAS), when given in relevant dose, are able to induce strain-specific beneficial effects for health of humans or animals.
Methods: L. rhamnosus strains originating from four medicinal products, 2 dietary foods for special medical purposes and dietary supplement, were tested for susceptibility to antibiotics and chemotherapeutics following L. rhamnosus and L.rhamnosus GG strain identity confirmation with use of PCR, rep-PCR and AFLP methods.
Results And Conclusions: L. rhamnosus working seeds of medicinal products and isolates originating from dietary foods for special medical purposes or dietary supplement were found correctly classified on the levels of species or L. rhamnosus GG strain identities. Antibiotics and chemotherapeutics susceptibility profiles of L. rhamnosus strains allowed for choice of treatment options in six out of seven products under study.
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