Identifikasi Bakteri Resisten Cu Dari Sedimen Laut Terdampak Aktivitas Tambang Timah || Identification Of Cu Resistant Bacteria From Tin Mining-Affected Sea Sediment
Abstract
Tin mining activity at sea has various negative influences on the environment. One of them is heavy metal contamination that can affect the life of fisheries biota. This research was conducted to isolate and test the Cu heavy metal resistance of marine sediment bacteria that are affected by tin mining activity. Sediment sampling was carried out in the area of tin mining to the mudflat neared to the mangrove area. Bacterial isolation was carried out by spread plate method and bacterial characterization included cell shape, Gram staining and biochemical tests. Furthermore, bacterial isolates were tested for resistance to metals with concentrations of 10 ppm, 20 ppm, 40 ppm, 80 ppm and 100 ppm. The results showed that bacterial isolates originating from marine sediments affected by mining activity were resistant to Cu heavy metal at various concentrations. Isolates B6, B8 and A10 showed the highest resistance up to the concentration of 100 ppm
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DOI: https://doi.org/10.36987/jpbn.v6i2.1666
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