Investigation of Anti-Algae Activity of Oregano Medicinal Plant Extracts (Mentha longifolia (L.))
Biofoiling is a problem caused by microbial biofilms. Today, many studies have been done to solve the problems of biofouling. The most important studies have been carried out on the identification of natural antibiotic compounds in the marine environment. The most important studies have been performed on the identification of natural antifouling compounds in the marine environment. In this study, the anti-algae properties of organic and aqueous extracts of (Mentha longifora) were investigated using n-hexane, ethyl acetate, methanol and aqueous solutions. Chlorella vulgaris and Chaetoceros muelleri Microalgae, were grown in F2 culture medium. The extracts were dissolved in a certain amount in DMSO solvent and added to test tubes containing microalgae culture medium in different concentrations. After 24 hours, under a light microscope, the number of algae was counted by a neobar slide. Data were analyzed by SAS program and data were compared by Duncan's multiple range test. Statistical analysis of n-hexane extracts on C. vulgaris and C. muelleri showed that there was a statistically significant difference between the treatments at the probability level of 0.001. Extract of n-hexane with a concentration of (20 mg ml -1) for the microalgae C. vulgaris and for microalgae C. muelleri, an extract of (10 mg ml -1) for the n-hexane had the highest inhibitory.
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