Abstract
Herbal medicine is one of the oldest human approaches to treating diseases and yarrow (Achillea wilhelmsii) one of the most famous medicinal plants. Yarrow essential oil has anti-inflammatory, anti-spasm, anti-scalp, hair growth stimulation and topical skin healing due to chamazulene, cineole and borneol. ...
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Herbal medicine is one of the oldest human approaches to treating diseases and yarrow (Achillea wilhelmsii) one of the most famous medicinal plants. Yarrow essential oil has anti-inflammatory, anti-spasm, anti-scalp, hair growth stimulation and topical skin healing due to chamazulene, cineole and borneol. Staphylococcus aureus (S.aureus) and Escherichia coli (E.coli) are the most important bacteria causing nosocomial infections with multiple antibiotic resistances. Also, S.aureus strain is more sensitive than E.coli to extract of yarrow. Alpha-pinene, phenolic compounds and flavonoids are major constituents of yarrow. This review shows how methanol extract of yarrow prevented the growth of Gram-positive bacteria such as S.aureus and E.coli. So these extracts can be substituted for chemical drugs.
Abstract
Increasing antibiotic resistance in strains of bacterial pathogens increase the attitude of people to find new compounds as an appropriate alternative to antibiotics. In this study, the antimicrobial effects of methanolic extract of Mentha pulegium against S. aureus and E. coli strains were investigated. ...
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Increasing antibiotic resistance in strains of bacterial pathogens increase the attitude of people to find new compounds as an appropriate alternative to antibiotics. In this study, the antimicrobial effects of methanolic extract of Mentha pulegium against S. aureus and E. coli strains were investigated. After collecting the plants, essential oil of aerial parts of the plant was done by distillation with water through the clevenger apparatus. Gas chromatography-mass spectrometry (GC / MS) was used to identify the chemical composition of the essential oil. M. pulegium extract was prepared by soxhlet extractor method and their antimicrobial effects were investigated using agar well diffusion and dilution methods. The results of GC / MS analysis showed 22 compounds in M. pulegium plant. The results showed that M. pulegium methanolic extract prevents the growth of S. aureus and E. coli bacteria. Also, S. aureus showed a higher sensitivity to different concentrations of M. pulegium extract. Therefore, after supplementary studies, it could be used as a substitute the treatment of infections.
Abstract
Citrus aurantium L is rich of flavonoids, many flavones, volatile compounds and monoterpenes hydrocarbons. Orange blossom extract has antioxidant and antimicrobial features. In Iranian traditional medicine, orange blossom is known as a comforting and sleep booster plant. According to disrupt and side ...
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Citrus aurantium L is rich of flavonoids, many flavones, volatile compounds and monoterpenes hydrocarbons. Orange blossom extract has antioxidant and antimicrobial features. In Iranian traditional medicine, orange blossom is known as a comforting and sleep booster plant. According to disrupt and side effects of chemicals and its high costs, the use of herbs in the prevention and treatment of bacterial factors is very important, also different extracts and biological and pharmaceutical properties on the bacteria species were studied by sink and micro dilution methods. Extraction was done with aqueous methanol and acetone solvents using percolation method and then were dried. Different concentrations were prepared from concentrated extracts for disc diffusion and MIC. The results showed that the antimicrobial properties of acetone extract are better than methanol and water extracts by micro dilution method on Klebseilla and the related MIC is 100 mg/ml. The average diameter of inhibition zone was 11.33 mm. Methanol extracts had better activity on E.coli. The related MBC and average diameter were 150 mg/ml and 12 mm, respectively. Orange blossom showed antibacterial effects for higher concentration of methanol and acetone.
