AKTIVITAS ANTIBAKTERI EKSTRAK METANOL BUAH Syzygium polyanthum TERHADAP PERTUMBUHAN BAKTERI Escherichia coli

Agni Rimba Mawan, Sri Endah Indriwati, Suhadi Suhadi

DOI: https://doi.org/10.23917/bioeksperimen.v4i1.5934

Abstract

Buah salam (Syzygium polyanthum) memiliki manfaat sebagai obat. Penelitian ini bertujuan untuk mengetahui daya hambat ekstrak metanol buah Syzygium polyanthum terhadap pertumbuhan bakteri Escherchia coli. Ekstraksi dilakukan
dengan cara maserasi menggunakan pelarut metanol. Konsentrasi ekstrak yang digunakan adalah 40%, 60%, dan 80%, dengan tetracycline sebagai kontrol positif dan aquades sebagai kontrol negatif. Aktivitas antibakteri diuji dengan menggunakan metode one way anova, dilanjutkan dengan uji LSD (least signifiance diffrent). Hasil uji aktivitas antibakteri menunjukkan bahwa ekstrak buah Syzygium polyanthum berpengaruh signifian dalam menghambat pertumbuhan bakteri Escherchia coli
(p <0,05). Konsentrasi 80% memiliki aktivitas paling tinggi dalam menghambat pertumbuhan bakteri Escherchia coli, yang tidak berbeda nyata dengan konsentrasi 60% dan kontrol positif. Kesimpulan dari penelitian ini adalah ekstrak metanol buah Syzygium polyanthum memiliki aktivitas antibakteri terhadap Escherchia coli

Keywords

aktivitas antibakteri, Syzygium polyanthum, Escherchia coli, metode disk diffusion

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