Effect of Mn(II) on Tetracycline Degradation by a Selected Strain Burkholderia sp.

IF 2.5 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Ecological Chemistry and Engineering S-Chemia I Inzynieria Ekologiczna S Pub Date : 2023-09-01 DOI:10.2478/eces-2023-0041

Chaoxing Jiao, Hongbin Xiong, Benjun Zhou

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Abstract

Abstract Removal of residual tetracycline (TC) in the environment is an important issue for pollution control. In this study, a TC-degrading strain named JX_1 was isolated from the soil around an industrial park, the strain was identified as Burkholderia sp. by 16s rDNA sequencing analysis. The effects of various factors on TC degradation by the strain were studied, results indicated that the inoculation amounts and liquid volume had little effect on TC degradation rate. However, the degradation rate of TC by strain increased with the increase of pH, and the residual concentration increased gradually with the initial TC concentration increased. The degradation rate of 125 mg/L TC by strain JX_1 was 75.76 % under the conditions of temperature 37 °C, 2 mL inoculation amount and 200 mL liquid volume. Under the same conditions, the degradation rate of TC was increased to 91.39 % with the addition of 0.75 g/L MnSO 4 , indicating that Mn(II) could improve the degradation rate of TC by strain JX_1 to a certain extent.

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锰(II)对伯克氏菌降解四环素的影响

环境中残留四环素(TC)的去除是污染控制的一个重要问题。本研究从某工业园区周边土壤中分离到一株tc降解菌JX_1，经16s rDNA测序鉴定为伯克霍尔德氏菌(Burkholderia)。研究了各因素对菌株降解TC的影响，结果表明，接种量和液量对TC的降解率影响不大。菌株对TC的降解速率随pH的升高而升高，残留浓度随初始TC浓度的升高而逐渐升高。菌株JX_1在温度37℃、接种量2 mL、液量200 mL条件下，对125 mg/L TC的降解率为75.76%。在相同条件下，添加0.75 g/L mnso4可使菌株JX_1对TC的降解率提高到91.39%，说明Mn(II)能在一定程度上提高菌株JX_1对TC的降解率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ecological Chemistry and Engineering S-Chemia I Inzynieria Ekologiczna S 环境科学-环境科学

CiteScore

2.80

自引率

36.80%

发文量

审稿时长

>12 weeks

期刊介绍： The quarterly Ecological Chemistry and Engineering S is a multidisciplinary journal devoted to the publishing of original scientific papers, review articles, professional papers, case reports and varia (professional information, book reviews, etc.). It is pertinent to describe methods determining quality of air, water, soils and food. Many papers published are on monitoring and biomonitoring of an environment and on transfer of pollutants (eg heavy metals or radionuclides) from soil to plants. Some Authors consider impact of environment pollution on food and human health. Some papers describe models of pollutant spreading in air or within soil. Others are devoted to various technologies to prevent or minimize industrial pollution, as well as to remediation techniques. Papers on renewable energy sources are also very welcome.