مقاله Degradation of piperazine by Paracoccus sp. TOH isolated from activated sludge : تی پی بین

خلاصه مقاله

Piperazine is widely used as an intermediate in the manufacture of insecticides, rubber chemicals, corrosion inhibitors, and urethane. In this study, a highly effective piperazine-degrading bacteria strain, TOH, was isolated from the acclimated activated sludge of a pharmaceutical plant. This strain, identified as Paracoccus sp., utilises piperazine as the sole source of carbon, nitrogen and energy for growth. The optimal pH and temperature for the growth of TOH were 8.0 and 30 °C, respectively. The effects of co-substrates and heavy metals on the degradation efficiency of piperazine were investigated. The results indicated that exogenously supplied glucose promoted the degradation of piperazine, while the addition of ammonium chloride slightly inhibited piperazine degradation. Metal ions such as Ni²⁺ and Cd²⁺ inhibited the degradation of piperazine, whereas Mg²⁺increased it. In addition, metabolic intermediates were identified by mass spectrometry, allowing a degradation pathway for piperazine to be proposed for the first time.

نویسندگان

Shu Cai [ The College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People’s Republic of China ]

Xin Li [ The College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People’s Republic of China ]

Tianming Cai [ The College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People’s Republic of China ]

Jian He [ The College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, People’s Republic of China ]

کلمات کلیدی

Piperazine Biodegradation Paracoccus aminovorans TOH Metabolic pathway

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مشاهده مقالات

Bioresource Technology

The journal's aim is to advance and disseminate knowledge in all the related areas of biomass, biological waste treatment, bioenergy, biotransformations and bioresource systems analysis, and technologies associated with conversion or production.

حوزه های تحت پوشش : Bioresource Technology