Investigating the effect of lavender plant extracts, oregano, Thyme and marshmallow on the growth of bacteria Lactobacillus acidophilus

Background and Aim : People with irritable bowel syndrome suffer from a lack of microorganisms in their gut. Antibiotics have a negative effect on the growth of microorganisms in the gut. The goal of this study is to find out if plant extracts can also damage probiotics and prevent them from growing. Therefore, we investigated the effect of lavender, oregano, thyme and marshmallow plant extracts on probiotic bacteria.Methods : This study was performed experimentally and using the culture medium prepared from MRSagar and MRSbroth, concentrations of ۰.۱, ۰.۰۱, ۰.۰۰۱ of the bacterium were prepared. To prepare the extracts, a clevenger apparatus was used using a water solvent. The variables of this study were the concentration and types of extracts.Results : Herbal extracts had different effects on the growth of probiotic bacteria due to their different concentrations. Among the extracts, thyme had the highest antibacterial properties at a concentration of ۰.۰۱, and oregano at a concentration of ۰.۰۰۱ was useful and effective for the growth of probiotics.Conclusion : All extracts had an effect on the growth of probiotics. Oregano and marshmallows in different concentrations helped the growth of probiotics and had a positive effect, but thyme had different effects in different concentrations. Lavender destroyed probiotics in all concentrations. The findings show the effect of concentration and type of bacteria on the results.

کلیدواژه ها:

probiotic ، herbal extract ، marshmallow ، thyme ، lavender ، oregano