Isolasi, Seleksi Dan Optimasi Bakteri Penghasil Fitase Dari Tanah Vulkanik Di Guci, Tegal

Abstract

<p><em>The purpose of this study was to isolate</em><em>d</em><em>, select</em><em>ed</em><em> and characterize</em><em>d</em><em> phytase</em><em> </em><em>bacteria derived from volcanic soil in the </em><em>Guci</em><em>, Tegal. Bacteria from the volcanic soil </em><em>was isolated and</em><em> selected on </em><em>Luria </em><em>Betan</em><em>y</em><em> </em><em>(LB) </em><em>media containing </em><em>4</em><em>% phytic acid. </em><em>Selected colonies were </em><em>optimized </em><em>by</em><em> physical character </em><em>with</em><em> </em><em>determining</em><em> the relative activity. Colonies of bacteria could be isolated from the volcanic soil, selected, </em><em>and </em><em>ha</em><em>d </em><em>the highest relative activity in colonies of TG3 and TG3-5. TG3-5 bacterial colonies producing phytate ha</em><em>d</em><em> the highest optimum value at a temperature of 55°C, pH 7, the incubation time of 90 minutes, the substrate concentration of 5% and a best metal cofactor on Zn<sup>2+</sup> (10<sup>-4</sup>M). Volcanic soil in the </em><em>Guci</em><em>, Tegal containing phytase-producing bacteria with certain physical characteristics.A</em><em></em></p>

Studi Literatur Inkuiri Terbimbing terhadap Kemampuan Berpikir Kritis Pembelajaran Bahasa Indonesia Kelas X SMK

“…Saat ini, kebutuhan pembelajaran adalah siswa yang memiliki kemampuan pemecahan masalah dan berfikir kritis yang komples (Mufida, 2016). Dalam proses pembelajaran, otak siswa harus dilatih untuk berpikir logis, terbuka dan fleksibel untuk menyesuaikan diri dengan perubahan zaman.…”