Indiscriminate use of antibiotics and the rise in drug resistance emphasizes the immediate need for managing pharmaceutical products sensibly. The pharmaceutical products end in wastewater due to the manufacturing process of pharmaceutical industries, misuse of antibiotics and improper disposal of expired drugs, which eventually ends in sewers. In the present study we attempted to degrade fluoroquinolones by the process of mycoremediation. Hospital waste water soil sample was collected and screened for fungi which can tolerate norfloxacin. One fungal isolate was able to withstand 2 g/L of norfloxacin which was chosen for degradation studies. Degradation pattern was checked with HPLC, FTIR and SEM analysis. Kinetics studies were carried out to analyze the degradation pattern. The result confirmed that Ganoderma lucidum JAPC1 strain was capable of degrading norfloxacin successfully but was unable to degrade ciprofloxacin. © 2017, Korean Institute of Chemical Engineers, Seoul, Korea.

Jayanthi Abraham

Department of Bio-Medical Sciences

School of Bio Sciences and Technology

Vellore Campus

Chakraborty P

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Korean Journal of Chemical Engineering

Microbial degradation offers an efficient and ecofriendly approach to remove toxicants from the contaminated environments. Botryosphaeria laricina JAS6 and Aspergillus tamarii JAS9 were capable of degrading endosulfan and their metabolites which were isolated through enrichment technique. Both the strains were able to withstand an exposure of 1300 mg/L and showed luxuriant growth at 1000 mg/L of endosulfan. The change in pH in the culture broth was from 6.8 to 3.4 and 3.8 during growth kinetic studies of JAS6 and JAS9 strains, respectively upon biological degradation of endosulfan. The degradation of endosulfan by JAS6 and JAS9 strains were examined by HPLC. The biodegradation rate constant (k) and the initial concentration were reduced by 50% (DT50) which was determined by first and pseudo first order kinetic models. In the present investigation it has been revealed that Botryosphaeria laricina JAS6 and Aspergillus tamarii JAS9 possessing endosulfan degrading capability are being reported for the first time. These findings confirm the degradation of endosulfan by JAS6 and JAS9 strains which were accompanied by significant reduction in the toxicity and could be used as remedial measure in contaminated environments. © 2013 Silambarasan et al.

Fulltext

PLoS ONE

Mycoremediation of Endosulfan and Its Metabolites in Aqueous Medium and Soil by Botryosphaeria laricina JAS6 and Aspergillus tamarii JAS9

JAS1 bacterial strain capable of degrading chlorpyrifos and its major metabolite 3,5,6-trichloro-2-pyridinol (TCP) were isolated from paddy field soil. The isolated bacterial strain was characterized using morphological and biochemical analysis, as well as molecular characterization based on 16S rRNA sequence homology which confirmed its identity as Alcaligenes sp. The isolated bacterial strain efficiently degraded 300mg/l of chlorpyrifos within 12h of incubation and TCP was observed to accumulate in the aqueous medium. In soil studies with nutrients amendment along with chlorpyrifos and Alcaligenes sp. JAS1 showed undetectable level of pesticide in 24h, whereas in the absence of nutrients the pesticide was found to be degraded in 48h. Kinetic studies based on various models were carried out and the results showed a very good compliance with the first and pseudo first order models. TCP degradation process by Alcaligenes sp. JAS1 was characterized by the rate constant (k) of 1.364d-1 and the initial concentration was reduced by 50% (DT50) was 0.5d in the aqueous medium. Studies on biodegradation of TCP in soil with nutrients showed that JAS1 strain exhibited efficient degradation with a rate constant of 1.137d-1, and DT50 was 0.6d. In contrast, degradation of TCP in soil without nutrients was characterized by a rate constant of 0.953d-1 and DT50 was 0.7d. © 2012 Taiwan Institute of Chemical Engineers.

Journal of the Taiwan Institute of Chemical Engineers

Kinetic studies on enhancement of degradation of chlorpyrifos and its hydrolyzing metabolite TCP by a newly isolated Alcaligenes sp. JAS1

Applied Microbiology and Biotechnology

Toxic effects of nanoparticles on bioluminescence activity, seed germination, and gene mutation

Bioresource Technology

Degradation of the antibiotics norfloxacin and ciprofloxacin by a white-rot fungus and identification of degradation products

Water Research

Oxidation of fluoroquinolone antibiotics and structurally related amines by chlorine dioxide: Reaction kinetics, product and pathway evaluation

Comparative study on degradation of norfloxacin and ciprofloxacin by Ganoderma lucidum JAPC1

Journal	Data powered by TypesetKorean Journal of Chemical Engineering
Publisher	Data powered by TypesetSpringer Science and Business Media LLC
ISSN	0256-1115
Open Access	0