biodegradation


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biodegradation

 [bi″o-deg″rah-da´shun]
the series of processes by which living systems render chemicals less noxious to the environment.

bi·o·trans·for·ma·tion

(bī'ō-trans'fōr-mā'shŭn),
The conversion of molecules from one form to another within an organism, often associated with change (increase, decrease, or little change) in pharmacologic activity; refers especially to drugs and other xenobiotics.
Synonym(s): biodegradation

biodegradation

The breakdown of any material (e.g., an organic chemical), to a simpler nontoxic form, usually understood to be by bacterial action.

bi·o·trans·for·ma·tion

(bī'ō-trans'fŏr-mā'shŭn)
The conversion of molecules from one form to another within an organism, often associated with change in pharmacologic activity; refers especially to drugs and other xenobiotics.
Synonym(s): biodegradation.

biodegradation

the breaking down of inorganic and organic substances by biological action, a process usually involving bacteria and fungi, which are known as SAPROBIONTS when the substrate is biological.
References in periodicals archive ?
The metabolic pathway of aniline biodegradation was also investigated using the HPLC technique.
Ultimately biodegradable: This third classification basically recognizes that everything (or nearly everything) will eventually achieve ultimate biodegradation, even if it takes centuries.
Bacillus cereus has been found to be a good bioremediation candidate in the biodegradation of polyethene due to its ability to produce enzymes laccase and manganese peroxidase.
It is now evident that once the pesticide pollutants persist, they come into contact with water, soil and air; while the native microbes take part in the natural process of biodegradation. Several research workers have reported the degradation of different pesticides under various physiological circumstances and isolated several bacterial strains having potential to degrade the pesticides from environment [25].
In order to elucidate the possible indole degradation pathways, the metabolites of indole biodegradation were analyzed by LC-MS/MS, consisting of an Agilent 1100 series HPLC coupled to a 6410 triple quadrupole mass spectrometer (Agilent Technologies, USA).
The rate of biodegradation is calculated according to the following equation:
The biodegradation test was performed according to ASTM G 160-03 [10], with exposure in simulated soil of 14, 28 and 86 days.
Soil microbial activity during the biodegradation of the mulch films was estimated by the fluorescein diacetate (FDA) hydrolysis test method according to Adam and Duncan (2001).
To promote biodegradation in less than one year, the poly film contains a special additive.
Key words: Azo dyes; Biodegradation; Shewanella sp.; Operational parameters