Biodegradation of aniline from textile industry waste using salt tolerant Bacillus firmus BA01

Q2 Engineering

Engineering in Agriculture, Environment and Food Pub Date : 2019-07-01 DOI:10.1016/j.eaef.2019.04.003

A. Anli Dino , R. Brindha , J. Jayamuthunagai , B. Bharathiraja

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引用次数: 4

Abstract

In the present investigation, aromatic compound of aniline acquired from textile industry waste was degraded by isolated bacterial species from the source of contaminant by using acclimatization and enrichment techniques. The isolated bacterial species were further identified as Bacillus firmus BA01 by 16S rRNA sequencing. The growth kinetics of bacteria was validated over the entire concentration range by Haldane's growth kinetics model. Further, the specific growth rate and the decay coefficients have been found to be 0.024 h⁻¹ and 0.006 h⁻¹ respectively. The salt tolerance of potent degrading strain was analyzed through dose response assessment showing IC50 value of 1.7%. The specific turnover rate was obtained to be 0.047 μM h⁻¹ mg of protein⁻¹. The intermediates of aniline were identified by GC/MS analysis before and after treatment.

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耐盐硬芽孢杆菌BA01生物降解纺织废料中的苯胺

采用驯化富集技术，对纺织工业废渣中苯胺中的芳香族化合物进行了降解。通过16S rRNA测序进一步鉴定菌株为芽孢杆菌(Bacillus firmus BA01)。用Haldane生长动力学模型验证了细菌在整个浓度范围内的生长动力学。比生长率为0.024 h−1，衰变系数为0.006 h−1。通过剂量效应评价分析强降解菌株的耐盐性，IC50值为1.7%。比周转率为0.047 μM h−1 mg protein−1。处理前后用GC/MS对苯胺中间体进行鉴定。

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来源期刊

Engineering in Agriculture, Environment and Food Engineering-Industrial and Manufacturing Engineering

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： Engineering in Agriculture, Environment and Food (EAEF) is devoted to the advancement and dissemination of scientific and technical knowledge concerning agricultural machinery, tillage, terramechanics, precision farming, agricultural instrumentation, sensors, bio-robotics, systems automation, processing of agricultural products and foods, quality evaluation and food safety, waste treatment and management, environmental control, energy utilization agricultural systems engineering, bio-informatics, computer simulation, computational mechanics, farm work systems and mechanized cropping. It is an international English E-journal published and distributed by the Asian Agricultural and Biological Engineering Association (AABEA). Authors should submit the manuscript file written by MS Word through a web site. The manuscript must be approved by the author''s organization prior to submission if required. Contact the societies which you belong to, if you have any question on manuscript submission or on the Journal EAEF.