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KMID : 0545120130230050715
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Journal of Microbiology and Biotechnology
2013 Volume.23 No. 5 p.715 ~ p.718
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Biodegradation Capacity Utilization as a New Index for Evaluating Biodegradation Rate of Methane
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Kim Tae-Gwan
Yi Tae-Woo
Yun Jeong-Hee
Ryu Hee-Wook
Cho Kyung-Suk
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Abstract
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Density of catalytic organisms can determine the biodegradation capacity and specific biodegradation rate (SBR). A new index, biodegradation capacity utilization (BCU, %), was developed for estimating the extent of actual biodegradation of a gas compound over the full capacity. Three methanotrophic cultures were serially diluted (1-1/25), and methane SBR and BCU were measured. Consistently, biomass reduction increased the SBR and decreased the BCU. Linearity (p < 0.05, r > 0.97) between the BCU and cell density indicated the reflection of biodegradation capacity by BCU. Therefore, BCU is indicative of whether the density of catalytic organisms is pertinent for SBR evaluation of low-soluble gaseous compounds.
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KEYWORD
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Biodegradation Capacity Utilization, Low soluble gas, Methane oxidation
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