| Abstrakt: |
Probiotics are rapidly multiply by using prebiotic compounds in benefit microorganisms such as bacteria and fungi and/or some plant-derived compounds like oligosaccharides. In this study, the effects of polysaccharides isolated from three medicinal plants belonging to the Asteraceae family including Taraxacum officinaleF. H. Wigg., Cichorium intybusL., and Gundelia tournefortiiL. on the growth of Lactobacillus rhamnosus(NIMBB006), and their antibacterial activity against four bacteria (Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Salmonella typhi, and Bacillus subtilis) and antioxidant capacity were investigated. The main polysaccharide components were identified using liquid chromatography–mass spectrometry (LC–MS/MS). The highest amounts of extracted polysaccharide were detected in two herbs i.e. C. intybusand G. tournefortiiwith high antioxidant activity. The maximum values of the antibacterial properties were related to polysaccharide isolated from T. officinaleagainst four studied bacteria and polysaccharide isolated from each three herb against S. typhi. Totally, the extracted polysaccharides from T. officinale(2%) was significantly more effective in increasing the growth of L. rhamnosus(NIMBB006) as a native probiotic in comparison to two commercial prebiotics i.e. inulin and dextrose. In conclusion, the major constituents such as cyanidin-3-O-β-glucoside, N-acetylcysteine, and glutamic acid in T. officinalemay play a major role in biological properties. |
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