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Use of PCR for species identification and searching of selected genes of lactobacilli
Diado, Aleksandra ; Rittich, Bohuslav (referee) ; Španová, Alena (advisor)
Probiotic food products - food additives contain different species of probiotic bacteria. Accurate species identification with their characteristics is very important from the view of products quality. Methods of DNA diagnostics are used for these purposes. In this thesis DNA was isolated from 4 probiotic products. The presence of bacterial of genus Lactobacillus and species L. acidophilus, L. casei, L. plantarum, L. rhamnosus were detected in three products by PCR. This information was in accordance with the data provided by the manufacturer. Two sets of primers were used for identification of species. Using other primers sequences of genes such as bsh, lai and odc were detected in DNA isolated from the products. Differences were estimated among products concerning the detection of lai gene Lactobacillus acidophilus.
Use of PCR for species identification and searching of selected genes of lactobacilli
Diado, Aleksandra ; Rittich, Bohuslav (referee) ; Španová, Alena (advisor)
Probiotic food products - food additives contain different species of probiotic bacteria. Accurate species identification with their characteristics is very important from the view of products quality. Methods of DNA diagnostics are used for these purposes. In this thesis DNA was isolated from 4 probiotic products. The presence of bacterial of genus Lactobacillus and species L. acidophilus, L. casei, L. plantarum, L. rhamnosus were detected in three products by PCR. This information was in accordance with the data provided by the manufacturer. Two sets of primers were used for identification of species. Using other primers sequences of genes such as bsh, lai and odc were detected in DNA isolated from the products. Differences were estimated among products concerning the detection of lai gene Lactobacillus acidophilus.

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