Antimicrobial Activity of Ageratum conyzoides against Staphylococcus aureus

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dc.contributor.authorDilrukshi, P.A.D.M.
dc.contributor.authorPremathilake, S.N.
dc.contributor.authorWijesekara, K.B.
dc.date.accessioned2022-03-22T08:59:23Z
dc.date.available2022-03-22T08:59:23Z
dc.date.issued2013
dc.description.abstractAgeratum conyzoides is a native annual branching herb, which grows to approximately 1 m in height and usually found open and abandoned areas . This plant is commonly used in traditional medicine, especially for wound healing (Sing et al., 2012). Methodswhich are usedinhealing wound infections include debridement, antibiotics, tissue grafts and proteolytic enzymes. However, these methods have major drawbacks and unwanted side effects. Recently there is a tendency towards the uses of traditional medicines as it shows the better cultural acceptability and better compatibility with the human body and also fewer side effects (Parekh et al., 2005). Fresh plant materials of A.conyzoides were collected and washed using tap water .Then they were separated into flowers, leaves, roots and stems and were air dried in shade for 7 days and powdered using mortar and pestle. The powdered plant materials were sieved and stored in airtight containers. Plant material extracts were obtained with 95% methanol using the soxhlet apparatus. Each extracts were concentrated and solvents were fully evaporated, by rotary evaporator (150 rpm) at 40 C. The obtained concentrates were transferred to McCarthy glass vials and placed under room temperature for complete dryness. Then they were stored in airtight vials under refrigerated conditions. Staphylococcus aureuspure cultures were collected from the Medical Research Institute (MRI) Colombo and from them liquid cultures were prepared using Nutrient broth. Then they were incubated at 37°C for 24 hrs. The powdered plant materials were measured into separate McCartney bottles and appropriate volume of the extracts were added to make a stock solution of 200mg/mL. Sterile nutrient agar plates were prepared and allowed to solidify. A 0.1 mL of liquid culture of S. aureuswas spread equally on the solidified nutrient agar plate. After one hour five wells were dug in each plates using a sterile cork borer (5mm diameter).Concentration series of extracts (200mg/mL, 100mg/mL,50 mg/mL, 25mg/mL and 12.5 mg/mL) were prepared and from them 0.5mLof extracts were added to wells in appropriately labelled plates. As the control 95% methanol was used. The plates were left on the bench for few minutes for the extract to diffuse into the agar and later incubated at 37°C for 24hours. After the incubation the zone of clearance around each well was measured using a metric ruler by taking measurement of the inhibition zones. Minimum inhibition concentration (MIC) was determined for extracts that showed less than 7 mm(<7 mm) diameter inhibition zone.en_US
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/8542/13-SCT-Antimicrobial%20Activity%20of%20Ageratum%20conyzoides%20against%20Staphylococcus%20aureus%20.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.subjectScience and Technologyen_US
dc.subjectTechnologyen_US
dc.subjectComputer Scienceen_US
dc.subjectAntimicrobialen_US
dc.subjectIndigenous Medicineen_US
dc.subjectHerbal Planten_US
dc.titleAntimicrobial Activity of Ageratum conyzoides against Staphylococcus aureusen_US
dc.title.alternativeResearch Symposium 2013en_US
dc.typeOtheren_US
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