Please use this identifier to cite or link to this item: https://repositori.uma.ac.id/handle/123456789/29406
Title: Uji Aktivitas Antibakteri Ekstrak Etanol dan n-Heksan Daun Telang (Clitoria ternatea L.) terhadap Helicobacter pylori dan Escherichia coli
Other Titles: Antibacterial Activity Test of Ethanol and N-Hexane Extract of Blue Pea (Clitoria ternatea L.) Leaves AgainsT Helicobacter pylori and Escherichia coli
Authors: Andini, Rizky
metadata.dc.contributor.advisor: Lubis, Rosliana
Keywords: Antibakteri;Daun telang;Difusi cakram;Ekstrak tanaman;Zona hambat;Antibacterial;Telang leaf;Disc diffusion;Plant extract;Zone of inhibition
Issue Date: Sep-2025
Publisher: Universitas Medan Area
Series/Report no.: NPM;218700009
Abstract: Tujuan dalam penelitian ini untuk mengetahui senyawa metabolit sekunder yang terkandung dalam ekstrak etanol dan n-heksan daun telang serta untuk mengetahui aktivitas antibakteri ekstrak etanol dan n-Heksan daun telang terhadap bakteri Helicobacter pylori dan Escherichia coli. Penelitian ini bersifat kuantitatif eksperimental berskala laboratorium yang terdiri dari preparasi sampel, ektraksi sampel dan analisis aktivitas bakteri dengan menggunakan metode difusi cakram. Adanya aktivitas antibakteri ditandai dengan terbentuknya zona hambat berupa zona bening diarea sekitas kertas cakram. Hasil pengujian menunjukkan ekstrak etanol dan n-Heksan daun telang mengandung senyawa metabolit sekunder alkaloid, flavonoid, saponin, tannin dan terpenoid. Konsentrasi yang paling baik dalam menghambat pertumbuhan H. pylori ditunjukkan pada konsentrasi 75% dan 100% dengan diameter zona hambat 11.46 mm dan 11.92 mm (kategori lemah), Sedangkan konsentrasi paling baik dalam menghambat pertumbuhan E. coli ditunjukkan pada konsentrasi 100% dengan diameter zona hambat 17.04 mm dan 18.04 mm (kategori sedang). The purpose of this study was to determine the secondary metabolite compounds contained in ethanol and n-Hexan extracts of telang leaves and to determine the antibacterial activity of ethanol and n-Hexan extracts of telang leaves against Helicobacter pylori and Escherichia coli bacteria. This research is a laboratoryscale experimental quantitative study consisting of sample preparation, sample extraction and analysis of bacterial activity using the disc diffusion method. The presence of antibacterial activity is characterized by the formation of a clear zone of inhibition in the area around the disc paper. The test results showed that ethanol and n-Hexan extracts of telang leaves contained secondary metabolite compounds of alkaloids, flavonoids, saponins, tannins and terpenoids. The best concentration in inhibiting the growth of H. pylori was shown at a concentration of 75% and 100% with an inhibition zone diameter of 11.46 mm and 11.92 mm (weak category), while the best concentration in inhibiting the growth of E. coli was shown at a concentration of 100% with an inhibition zone diameter of 17.04 mm and 18.04 mm (medium category).
Description: 39 Halaman
URI: https://repositori.uma.ac.id/handle/123456789/29406
Appears in Collections:SP - Psychology

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218700009 - Rizky Andini - Fulltext.pdfCover, Abstract, Chapter I, II, III, V, Bibliography1.9 MBAdobe PDFView/Open
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