Skripsi Biologi
Uji daya hambat ekstrak batang tumbuhan harrisonia perforate merr. terhadap pertubuhan bakteri shigella dysentriae
ABSTRAK
Penelitian berjudul uji daya hambat ekstrak batang tumbuhan Harrisonia perforata Merr. terhadap bakteri Shigella dysentriae telah dilaksanakan pada bulan April – Juni 2014. Tujuan penelitian ini untuk mengetahui daya hambat ekstrak batang H. perforata Merr. terhadap pertumbuhan bakteri S. dysentriae. Metode ektraksi yang digunakan dalam penelitian yaitu metode refluks. Penelitian dirancang secara Rancangan Acak Lengkap (RAL) dengan 4 perlakuan (konsentrasi 60%, 80%, dan 100% serta Contrimoxazole 1% sebagai k ontrol positif) dan 3 kali ulangan. Hasil penelitian menunjukan bahwa ekstrak konsentrasi 100% mempunyai daya hambat yang paling baik terhadap pertumbuhan bakteri S. dysentriae. Kelompok perlakuan ekstrak konsentrasi 60% dan 80% menghasilkan pengaruh (daya hambat) yang tidak berbeda secara statistik.
Kata kunci : Harrisonia perforata Merr., Shigella dysenriae, Konsentrasi ekstrak, Zona hambat.
ABSTRACT
The research entitled inhibition test of stem extract of Harrisonia perforata Merr. on the growth of bacteria Shigella dysentriae has been conducted from April - May 2014. The objective of the research was to study the inhibition stem extract of H. perforate Merr. on the bactery studied. The extraction was used reflux method. The experiment was arranged in Completely Randomized Designed (CRD) by 4 treatments (concentrate extract 60%, 80%, 100% and Contrimoxazale 1% as positive control) and 3 repetition. The result showed that the best of extract concentrate to inhibite of bacterial growth was 100%. The treatment by 60% and 80% were not significant different statistically.
Keyword : Harrisonia perforata Merr., Shigella dysenriae, Extract concentrate, Inhibition zone.
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