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BIODETERIORATION OF RECALCITRANT CHEMICAL COMPLEXES - Coggle Diagram
BIODETERIORATION OF RECALCITRANT CHEMICAL COMPLEXES
What is Recalcitrant Chemical Complexes?
Degrade slowly/ Non-biodegradable
Ranging from simple halogenated hydrocarbons to complex polymers
Synthetic compunds
How to make it biodegradable?
Treating the complex to make it more susceptible to microbial attack
Developing microbes that can degrade the compound
What are the factors affecting recalcitrance?
Organism lacking necessary genetic information
Size of the compounds
Absence of transport system in organism
Solubility of the compounds
Availability of assimilable carbon source
Presence
Oxygenated and degraded
Absence
Not degraded, or occur very slowly
Co-metabolism in degradation of alkane & lignin
What is Biodeterioration?
Loss of the physical integrity or defacement of a polymer
How does microbial deterioration occurs?
Microbial enzyme attack on;
Main chain of the polymer
Components of the polymeric blend
Examples of microbes capable of metabolizing synthetic compounds
Pseudomonas aeruginosa, P. putida, P. cepacia
Threats of Recalcitrant Chemical Complexes
Increase risk of cancer in aquatic and terrestrial species
Development of antibiotic-resistant bacterial strains
Cause impairment in physiological processes in living organisms