Biodegradability microbial degradation

Biodegradation microbial degradation with pseudo first-order rate constant k = 0.1 yr1 in the water column and k = 1.0 yr-1 in the sediment (Furukawa et al. 1978 quoted, Neely 1981). 

Hydrolysis more stable in acidic than in alkaline media with t,/2 = 2.5 d at pH 9 and 25°C (Tomlin 1994). Biodegradation microbial degradation half-life are, t,/2(aerobic) = 21-25 d, t,/2(anaerobic) = 31-36 d in laboratory ... 

Biodegradation microbial degradation t,/, = 10.5 d by microorganisms isolated from soil and waste water at 30°C (Kurane et al. 1977, quoted, Russell et al. 1985) ... 

PS is very resistant to biodegradation. Microbial degradation of PS proceeds at a slow rate. Photodegradation can increase the rate of biodegradation of PS, but it still remains very low and is rather difficult to determine. Polymer blends obtained by mixing PS with biodegradable components such as cellulose or starch demonstrate an increase in biodegradation rate [14-16]. 

Typical biodegradants microbial degradation of polyester polyurethane is hypothesized to be mainly due to the hydrolysis of ester bonds by esterase enzymes ... 

Cook AM, R Hiitter (1981) Degradation of 5-triazines a critical view of biodegradation. In Microbial Degradation of Xenobiotics and Recalcitrant Compounds (Eds T Leisinger, AM Cook, R Hiitter, J Niiesch), pp. 237-249. Academic Press, London. 

Slater JH, D Lovatt (1984) Biodegradation and the significance of microbial communities. In Microbial Degradation of Organic Compounds (Ed DT Gibson), pp. 439-485. Marcel Dekker Inc, New York. 

Traps with Bio-Sep beads amended with [ Cg]-benzene and [ C]-toluene were used to assess biodegradation in an aquifer (Geyer et al. 2005). Beads were lyophilized after exposure, lipids were extracted with chloroform-methanol, and the fatty acids and values analyzed. High enrichment of was observed in several fatty acids, which showed that the label from the substrates had been incorporated. In addition, there were differences in the abundance of the fatty acids in beads amended with benzene or toluene that suggested the existence of different microbial degradative populations. 

Trudgill PW (1978) Microbial degradation of alicyclic hydrocarbons. In Developments in Biodegradation of Hydrocarbons-1 (Ed RJ Watkinson), pp. 47-84. Applied Science Publishers Ltd, London. 

White GF, NJ Russell (1994) Biodegradation of anionic surfactants and related molecules. In Biochemistry of Microbial Degradation (Ed C Ratledge), pp. 143-177. Kluwer Academic Publishers, Dordrecht, The Netherlands. 

Tabak and colleagues111 found most compounds in the group to be subject to significant degradation under experimental aerobic conditions. At least ten of the compounds are subject to biodegradation under anaerobic conditions. Britton112 discusses microbial degradation of aliphatic hydrocarbons in more detail. 

Howard, P.H., Hueber, A.E., Mulesky, B.C., Crisman, J.S., Meylan, W., Crosbie, E., Gray, D.A., Sage, G.W., Howard, K.P, LaMacchia, A., Boethling, R., Troast, R. (1986) Biology, biodegradation and fate/exposure New files on microbial degradation and toxicity as well as environmental fate/exposure of chemicals. Environ. Toxicol. Chem. 5, 977-988. 

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