Transcription of BIOINDIKATOR PENCEMAR, BAKTERI Escherichia coli
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BIOINDIKATOR PENCEMAR, BAKTERI Escherichia coli
Oseana, Volume XLI, Nomor 4 Tahun 2016 : 63 - 71 ISSN 0216-1877. BIOINDIKATOR PENCEMAR, BAKTERI Escherichia coli Oleh Lies Indah Sutiknowati1). ABSTRACT. BIOINDICATOR OF CONTAMINANT, BACTERIA Escherichia coli. Indicator organisms are used to measure potential fecal contamination of environmental samples. The presence of coliform bacteria, such as Escherichia coli, in surface water is a common indicator of fecal contamination. Coliform bacteria in water samples may be quantified using the most probable number (MPN) method, a probabilistic test which assumes cultivable bacteria meet certain growth and biochemical criteria.
BGLB (Brilliant Green Lactose bile Broth) yang telah diberi sampel positif dari media LTB diinkubasikan pada inkubator pada suhu 37 ± 2°C selama 24 jam (atau diperpanjang hingga 48 jam, jika bakteri belum tumbuh). Hasil positif ditandai dengan perubahan warna media BGLB dan adanya gelembung gas yang terperangkap dalam tabung Durham.
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