Degradation of terephthalic acid by a newly isolated strain of Arthrobacter sp.0574

Autor: Yi-Mei Zhang, Yao-Qun Sun, Zhi-Jiang Wang, Jie Zhang
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: South African Journal of Science, Vol 109, Iss 7/8, Pp 4-4 (2013)
Druh dokumentu: article
ISSN: 1996-7489
DOI: 10.1590/sajs.2013/20120019
Popis: Terephthalic acid is an important industrial chemical but its production typically generates 3–10 tons of wastewater, which is a significant source of pollution. Although recent research has shown that terephthalic acid can be degraded by physical and chemical methods, these methods are complex and expensive. Microbial degradation of terephthalic acid is a popular alternative because it is environmentally friendly. We isolated a Gram-positive strain capable of growing aerobically on terephthalic acid as the sole carbon and energy source. It was identified as Arthrobacter sp. by 16S rDNA sequencing and its physiological and biochemical characteristics. For terephthalic acid degradation, the optimal temperature of the resting cells was 30 °C, optimal shaking speed was 150 rpm, the most suitable pH was 7.0, and the ability to degrade terephthalic acid was inhibited by concentrations of terephthalic acid above 10 g/L.
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