Acetate and formate, likely products of Tween 80 fermentation, were observed at levels as high as 4,600 [micro]M and are indicative of anaerobic microbial degradation
of the surfactant (Ramsburg et al.
Strong adsorption onto soil OM may protect the pesticide molecules from microbial degradation
and other processes such as leaching and volatilisation.
And in each different medium they can change chemical character, reacting with water in one phase to become acidic or turning toxic through microbial degradation
in the soil.
(18.) Sunday A.A., et al., Microbial degradation
of petroleum hydrocarbons in a polluted tropical stream.
Thus, the disappearance of DCD in soil can be attributed to chemical and/or microbial degradation
. Amberger and Vilsmeier (1979a) showed that DCD could be degraded in the presence of metal oxides to guanylurea; therefore, abiotic degradation of the DCD cannot be ruled out in the present experiment, and further sterile treatments would be required to ascertain the importance of such a pathway.
In ruminants microbial degradation
of fiber and nitrogenous compounds from diet provides 40-100 percent of the amino acids available in the large intestine (Stern et al.
A spontaneous degradation for those compounds happed by many kinds of reactions including aerobic and anaerobic microbial degradation
. The phenolic compounds problem becomes serious when a biased accumulation happened usually due to our live wastes which contaminate the ecosystem.
Field samples from several sites show their presence and support the conclusion that microbial degradation
of hydrocarbons is actively taking place in these anoxic environments.
of plastics under laboratory conditions: To assess this, the preweighed discs of 1-cm diameter prepared from polythene bags and disposable plastic cups were aseptically transferred to the conical flask containing 50 ml of culture broth medium, inoculated with different bacterial and fungal species separately.
may occur through mineralisation, co-metabolic reaction, polymerisation, and secondary effects as a result of microbial activities (Bollag and Liu 1990).
To prevent microbial degradation
of purines, urine was acidified by 10% H2SO4 to a pH of 2-3.