UJI RESISTENSI ISOLAT KHAMIR YANG DIISOLASI DARI LIMBAH INDUSTRI DI RUNGKUT, SURABAYA, INDONESIA
Salomo Christian(1*), Wahyu Irawati(2)(1) 
(2) Fakultas Sains dan Matematika, Program Studi Biologi Universitas Pelita Harapan
(*) Corresponding Author
Abstract
Sampel diambil dari lumpur aktif pusat pengolahan limbah PT. SIER Surabaya. Isolasi dilakukan dengan pengenceran sampel limbah kemudian diinokulasikan dengan metode sebar ke dalam medium Yeast Extract Peptone Dextrose Agar yang diperkaya dengan CuSO4. Uji resistensi dilakukan dengan menginokulasikan isolat murni dengan metode gores ke dalam medium Agar yang mengandung berbagai konsentrasi CuSO4 untuk menentukan nilai Minimum Inhibitory Concentration (MIC). Hasil isolasi diperoleh delapan isolat khamir dengan kode ES6.1, ES8.1, ES9.2, ES9.3, ES9.4, ES9.5, ES10.2, dan ES10.4. Nilai MIC isolat khamir tersebut berkisar antara 16-20 Mm CuSO4. Isolat yang paling resisten adalah isolat dengan kode ES9.3 dengan nilai MIC= 20 mM CuSO4 , sehingga isolate ini dipilih sebagai isolate yang paling resisten terhadap polutan di Wilayah Rungkut, Surabaya, Indonesia.
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