title: Biodegradation capacity utilization as a new index for evaluating biodegradation rate of methane.
abstract: 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.
authors: Department of Environmental Science and Engineering, Ewha Womans University, Seoul 120-750, Korea.
authors: Tae Gwan
authors: TG
authors: Kim
authors: Taewoo
authors: T
authors: Yi
authors: Jeonghee
authors: J
authors: Yun
authors: Hee Wook
authors: HW
authors: Ryu
authors: Kyung-Suk
authors: KS
authors: Cho
mesh_terms: D001419:Bacteria / Q000737:chemistry* / Q000378:metabolism*; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology; D007700:Kinetics; D008697:Methane / Q000378:metabolism; D010084:Oxidation-Reduction
chemical_list: D008697:Methane