Decolorization studies of synthetic dyes using Phanerochaete chrysosporium and their kinetics

Radha, K. V.; Iyyaswami, Regupathi; Arunagiri, Appusamy; Murugesan, Thanapalan

doi:10.1016/j.procbio.2005.03.033

Cited by 161 publications

(79 citation statements)

References 38 publications

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“…27 U/ml) was obt ained. Activit y in the m ost acidic m edium (pH 3 and pH 4) were higher i n comp arison to slightl y acidic medium , t hese fi ndings agree wit h many previ ous aut hors, who f ound t hat mos t fungal ligni nol ytic enz ymes hav e s how n maximum produc tion at pH 3-5 (Radha et al, 2005;S hin and Lee, 2000). Snajdr and Baldrian (2007) using Pleurotus ostreat us i n their stud y obtai ned m aximum LiPs and MnPs production in pH range 4-5 at 25°C b y using cellulosic substr ates in liquid cultur e ferment ation.…”

Section: Effect Of I Ni Ti Al Ph On Li Gni N Peroxi Dases Producti Onsupporting

confidence: 75%

Optimization of peroxidase production from Humicola grisea and its application in biodegradation of textile dyes

Moubasher¹,

Mostafa²,

Haroun³

2017

Egypt. J. Exp. Biol. (Bot.)

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H an y A . M oub as h er F at m a A . m os t af a O m i m a har ou n Optimiz ation of p eroxidas e productio n of Humicol a gri sea T raaen and its applic ation in biod egradatio n of textile dy es ABSTRACT:Per oxidases are import ant group of enz ym es that play a m ajor rol e in biodegrad ation of organo-pollut ants. Eight f ungal isol at es wer e isolat ed, id enti fied, and t est ed for t heir peroxidas e producti on and de-c olorization activit y. S unzol Brilliant Or ange and S uncron Blue days wer e chos en for t his inv estigati on. All fu ngal is olat es gave p ositive ability; how ev er, the highes t percent age of decolorization w as obtai ned using H umicol a grisea. Lignin per oxidas es of Humic ola gris e the m ost p otent f ung us, w as st udied regarding optimal c ultur e c onditions of prod uction. The highes t produc tion of ligni n per oxidas es (LiPs) was obt ained usi ng Kirk and Tien medium s upplemented with 10 g l -1 sucr os e as a c arbon s ource and 0. 5 g l -1 amm oni um hydrogen phosp hate as a nitrogen source. The optimum t emperat ure f or Li Ps produc tion was at 30°C, w hile the optimum pH w as at 4. KEY WORDS:Per oxidase, H umicola gris ea Traaen, textile dyes, biodegrad ation, organo-pollutants . CORRESP ONDENCE:H an y A . M oub as h er ) . S ynthetic d yes ar e us ed i n t extil e d yei ng , p ap er pri nti ng , l eat her dyei ng , phar mac e uti c als , c ol or p hot ogr ap hy, cosm eti cs , pl ast ic , f ood addi tiv e, p etr ol eum prod uc ts and m any i nd us tri al pr oduct s (A ndl eeb et al. , 2010) .

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Section: Effect Of I Ni Ti Al Ph On Li Gni N Peroxi Dases Producti Onsupporting

confidence: 75%

Optimization of peroxidase production from Humicola grisea and its application in biodegradation of textile dyes

Moubasher¹,

Mostafa²,

Haroun³

2017

Egypt. J. Exp. Biol. (Bot.)

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“…Important secretion of MnP (1.033 × 10 3 U/L in Direct red 80 and 0.737 × 10 3 U/L in Mordant blue 9) and LiP (1.025 × 10 3 U/L in Direct red 80 and 1.006 × 10 3 U/L in Mordant blue 9) was also produced under these conditions. Recently, moreover, immobilization of fungal biomass by entrapment cell has been studied as a technique to increment the efficiency of metabolic activities (Yesilada et al 2003;Radha et al 2005;Park et al 2006;Zhang et al 2008). Several tests have demonstrated that mycelium immobilization with fragments of pellets is also an efficient method to improve the performance and economic feasibility of many fermentation processes (Kaushik & Malik 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Entrapped microorganisms in different materials, such as agar, alginate, chitosan, cellulose derivatives, and other polymeric matrixes like gelatine, collagen, or polyvinyl alcohol, have been reported for this purpose (Park & Chang 2000;Zhang et al 2008). Especially decolourization studies in agitated flasks of immobilized fungi on different size of calcium alginate beads were described by Radha et al (2005). Low decolourization percentage was detected in these tests on some synthetic structures, such as azo, anthraquinone, thiazine and vat dyes.…”

Section: Discussionmentioning

confidence: 99%

Enzyme production by immobilized Phanerochaete chrysosporium using airlift reactor

et al. 2014

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Enzyme production by immobilized Phanerochaete chrysosporium was evaluated in airlift bioreactor and agitated cultures. Free mycelium and immobilized mycelium on alginate beads were tested in the decolourization of 50 and 500 mg/L of Remazol Brilliant Blue R. Dye concentration did not inhibit the fungi development in all tests. In addition, high decolourization percentage of dye was found with free mycelium (99%) in agitated flasks and with immobilized mycelium in airlift (98%). However, decolourization period by immobilized mycelium (120 h) was greater than that by the free mycelium (14 h). Important manganese peroxidase, lignine peroxidase and laccase activities were identified in decolourization process. Manganese peroxidase appeared to be promoted by high dye concentrations during the treatment with immobilized mycelium, but this enzyme was not detected with free mycelium in airlift. Bioreactor prompted also laccase and lignine peroxidase actions in both tests; free mycelium registered a maximum laccase action of 31.569 × 10 3 U/L in 70 h, whereas immobilized mycelium registered 1.680 × 10 3 U/L in 170 h, while lignine peroxidase secretion by free P. chrysosporium was higher (1.300 × 10 3 U/L) than immobilized mycelium (1.250 × 10 3 U/L). Maximum laccase activity coincided with the maximum percentage of decolourization, however, high peroxidase activity was identified from the start of dye treatment.

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“…Radha et al 31 verificaram afinidade elevada de fungos pelo corante vermelho do congo (0,02 g L ), de modo que ainda assim foram obtidos bons percentuais médios de remoção do vermelho do congo (95%) e de matéria orgânica (86%).…”

Section: Resultsunclassified

Remoção de corante por uso de Aspergillus niger AN400 em reator em bateladas sequenciais

et al. 2011

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Recebido em 28/5/10; aceito em 25/1/11; publicado na web em 1/4/11 DYE REMOVAL BY USE OF Aspergillus niger AN 400 IN A SEQUENTIAL BATCH REACTOR. A sequential batch reactor (4 L) inoculated with Aspergillus niger was operated in order to remove congo red dye (10 mg L -1). The feeding of the reactor was done to each 7 days. The glucose was added in the concentration of 1 g.L -1 (Stage I) and 0.5 g L -1 (Stage II). The Stage III occurred without glucose addition. The Stage I was great to process, because the system reached the greater dye removal (95%) as well as the kinetic parameters ware the best -K M (0.7 g L -1) and k 1 (0.025 h -1 ).Keywords: Aspergillus niger; sequential batch; congo red. INTRODUÇÃOOs corantes sintéticos do tipo azo (-N=N -) representam cerca de 70% do mercado mundial de corantes, sendo estimada a perda em cerca de 10 a 20% de sua massa, principalmente nas etapas secundárias de beneficiamento têxtil, 1,2 o que resulta em preocupação ambiental quando do descarte inadequado dos efluentes têxteis, pois estes corantes possuem como característica a persistência no meio ambiente. 3A presença de corantes têxteis em corpos hídricos receptores predispõe à toxicidade a vida aquática e diminui a transparência de água, afetando o processo de fotossíntese e a concentração de oxigênio dissolvido que é essencial à biota. 3,4 Vários processos físico-químicos têm sido utilizados visando o tratamento destes despejos -coagulação, seguida de flotação ou sedimentação, adsorção em carvão ativado, 5 processos oxidativos avançados, 6,7 sistemas eletroquímicos, 8 entre outros. Porém, esses processos apresentam custo elevado e baixa eficiência para remoção de cor e matéria orgânica dissolvida, além de não serem destrutivos, o que faz com que a disposição da fase sólida se constitua em outro aspecto negativo do tratamento físico-químico. [7][8][9] Em relação aos processos biológicos, os sistemas anaeróbios e aeróbios -fundamentados na ação de bactérias -podem alcançar bons níveis de eficiência quando utilizados em conjunto, mas, separadamente, não apresentam percentuais de remoção satisfatórios.10,11 Em ambiente anaeróbio, a partir da clivagem da molécula do corante, são formadas aminas aromáticas cancerígenas, que são ainda mais difíceis de serem degradadas, exigindo o pós-tratamento do efluente em unidades aeróbias, 12,13 como, por exemplo, o sistema de lodos ativados, que é muito empregado para o pós-tratamento desses efluentes. Mas esse sistema, apesar dos bons resultados em relação à remoção de cor, apresenta produção de lodos elevada e é susceptível a choques de carga orgânica. 14,15 Apesar de recente, em comparação com outros sistemas biológi-cos, a utilização de fungos na biorremediação de poluentes tem sido relatada na literatura especializada devido ao potencial enzimático desses micro-organismos. 16As espécies de Aspergillus são conhecidas por sua capacidade de utilizar de corantes como substrato, transformando-os em compostos não tóxicos ou de baixa toxicidade, 17,l8 o que ocorre pela produção de enzimas e...

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Decolorization studies of synthetic dyes using Phanerochaete chrysosporium and their kinetics

Cited by 161 publications

References 38 publications

Optimization of peroxidase production from Humicola grisea and its application in biodegradation of textile dyes

Optimization of peroxidase production from Humicola grisea and its application in biodegradation of textile dyes

Enzyme production by immobilized Phanerochaete chrysosporium using airlift reactor

Remoção de corante por uso de Aspergillus niger AN400 em reator em bateladas sequenciais

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