Abstract
The degradation characteristics of pyridine and phenol by Rhodococcus sp.Chr-9 were studied.The results showed that strain Chr-9 could completely degrade 200 mg L-1 of pyridine or phenol respectively supplemented as sole carbon source within 72 hours in mineral salt medium.The optimal pH and temperature for pyridine degradation by strain Chr-9 were 8.0 and 35 ℃,respectively.The degradation rate of pyridine or phenol by strain Chr-9 was negatively related with its initial concentration in mineral salt medium.Strain Chr-9 could utilize pyridine as sole carbon and nitrogen source for growth,and the supplementation of phenol could enhance the strain growth when there was no other nitrogen source except pyridine in mineral salt media.Fig 7,Ref 12
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