UJI DAYA ANTI MIKROBA AIR REBUSAN DAUN BUNGUR (Lagerstroemia speciosa. Pers) TERHADAP PERTUMBUHAN BAKTERI Staphylococcus aureus SECARA IN VITRO

Lestariningsih, Wiwik (2010) UJI DAYA ANTI MIKROBA AIR REBUSAN DAUN BUNGUR (Lagerstroemia speciosa. Pers) TERHADAP PERTUMBUHAN BAKTERI Staphylococcus aureus SECARA IN VITRO. Other thesis, University of Muhammadiyah Malang.

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Abstract

Lagerstroemia (Lagerstroemia specosa. Press) is a plant that has potential as a drug, because it contains chemical compounds saponins, flavonoids, and tannins. This compound is predicted as antimicrobial substances. Bacteial samples used in this study is Staphylococcus aureus. This study aims to determine : (1) the effect of water decoction of the leaves on the growth of Staphylococcus aureus bungur; (2) the effect of different concentrations of water decoction of leaves on the growth of Staphylococcus aureus bungur; (3) the most effective concentration of water decoction of leaves bungur showing of the inhibition of growth of Staphylococcus aureus. The research method used is based on experiment with Completely Randomized Design (CRD), the concentration of water decoction of leaves bungur is : 0.78%, 1.56%, 3.125%, 6.25%, 12.5%, 25%, 50%, and 100%. Data in the form of bacterial growth inhibition zone diameter of Staphylococcus aureus in NA medium that has been added to water decoction of leaves bungur in these concentrations. Data collection was conducted for three replications. The data analysis technique used is one-way analysis of variance test followed by Duncan’s 5%. Result showed that at concentrations of 0.78% average inhibition zone diameter of 6,70 mm, the concentration average of 1.56%-10.54 mm inhibition zone, the concentration of an average 3.125%-13.29 mm inhibition zone, the concentration of 6.25% average inhibition zone 18.16 mm, concentration on average 12.5%-20.50 mm inhibition zone, the concentration of 25% on average 21.78 mm inhibition zone, the concentration of 50% average inhibition zone 23.06 mm, and at a concentration of 100% on average 28.81 mm inhbition zone. From these data we can conclude that the cooking water bungur leaf (Lagerstroemia speciosa. Release) can inhibit the growth of Staphylococcus aureus bacteria, the difference in concentration of water decoction of leaves bungur effect on the growth of bacteria Staphylococcus aureus and 100% concentration is the most effektive.

Item Type: Thesis (Other)
Subjects: Q Science > Q Science (General)
Divisions: Faculty of Teacher Training and Education > Department of Biology Education
Depositing User: Rayi Tegar Pamungkas
Date Deposited: 09 May 2012 02:16
Last Modified: 09 May 2012 02:16
URI: http://eprints.umm.ac.id/id/eprint/4755

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