Azo dye degradation by bacteria thesis

J Taiwan Inst Chem Eng Intl Res J Biol Sci 3 3: Overcommercial synthetic dyes including several classes have been generated worldwide with an annual production of aroundtons. Indian J Exp Biol All positions containing gaps and missing data were eliminated. Wat Sci Technol Appl Biochem Biotechnol Chem Ecol 29 3: Am J Infect Dis 5: J Chromat A It is now known that simple aromatic amines can be mineralized under methanogenic conditions.

Appl Microbiol 17 2: This article has been cited by other articles in PMC. Appl Microbiol Technol Effect of carbon and nitrogen source To find the most suitable carbon and nitrogen source, various carbon glucose, fructose, starch, sucrose and nitrogen ammonium sulphate, ammonium chloride, yeast extract, peptone source were evaluated under above optimized conditions.

Biochem Engineer J The bacterial strain could tolerate high concentrations of Acid Orange dye up to mg l Enzyme Microb Technol Environ Carcinog Ecotoxicol Rev These isolates were screened for their ability to decolorize Acid Orange dye mg l-1 in liquid culture.

Azo dye degradation thesis proposal

Bull Environ Contam Toxicol C1 in farming waste compost and enzymatic decolorization of azo dyes. Sep Purif Technol Biotechnol Biotec Eq For decolorization study under continuous shaking condition, 30 ml MSM along with glucose 0.

J Biol Agric Healthcare 4: Reactive Orange 16 by an actinobacterium Georgenia sp. J Chem Technol Biotechnol Appl Env Microbiol Curr Protein Pept Sci 7: This review is focused on the bacterial decolorization of azo dyes and mineralization of aromatic amines, as well as the application of these processes for the treatment of azo-dye-containing wastewaters.

Biotechnol Bioinf Bioeng 2 3: World J Microbiol Biotechnol The initial step in the bacterial degradation of azo dyes is the reductive cleavage of azo bond by an enzymatic biotransformation reaction under static or anaerobic conditions which leads to the formation of colorless aromatic amines.

Biosci Biotechnol Biochem Various mechanisms, which include enzymatic as well as low molecular weight redox mediators, have been proposed for this non-specific reductive cleavage. J Hazard Mater J Appl Catalysis B Environ J Acad Indus Res 1: Intl J Adv Res 1: The optimal tree with the sum of branch length 0.

Food Chem Toxicol Experiments were performed in 30 ml screw capped tubes containing 30 ml of above mentioned inoculated medium under static culture condition.degradation or mineralization of azo dyes (Banat et al., ). Reactive dyes are not readily removed by typical wastewater treatment process due to their inherent properties, such as stability and resistance towards light or oxidizing agents.

Reductive cleavage of Azo bond, leading to the formation of aromatic amines, is the initial reaction during the biological metabolism of Azo dyes. Anaerobic/anoxic Azo dye decolorization by several mixed and pure bacterial cultures have been reported.

Under these conditions, this reaction is nonspecific with respect to organisms as well as dyes. Sriram N, Reetha D, Saranraj P () Biological degradation of reactive dyes by using bacteria isolated from dye effluent contaminated soil.

Middle-East J Sci Res – Stackebrandt E, Rainey FA, Ward-Rainey NL () Proposal for almost any new hierarchic classification system, action bacteria classis november. Bacteria Capable of Decolourizing Azo Dye: Screening of the bacterial isolates was performed to figure out the isolate capable of degrading textile azo dyes of Novacron family, namely.

susceptible to oxidative catabolism by bacteria. As a conse-quence, azo dyes tend to persist under aerobic environmental conditions [1]. Some specialized strains of aerobic bacteria have devel-oped the ability to use azo dyes as sole source of carbon and nitrogen [2,3]; others only reduce the azo group by spe-cial oxygen-tolerant azo reductases.

Dye decolorization by fungi is mainly attributed by adsorption rather than degradation but slow growth and low decolorization efficiency limits the use of fungi for the treatment of textile effluent.[10,11] In contrast different trophic groups of bacteria can achieve a higher degree of degradation and even complete mineralization of dyes under optimum conditions.

The biodegradation of azo dyes may occur either .

Azo dye degradation by bacteria thesis
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