Aerobic decolorization, degradation and detoxification of azo dyes by a newly isolated salt-tolerant yeast Scheffersomyces spartinae TLHS-SF1

Tan, Liang; He, Muyang; Song, Li; Fu, Xing; Shi, Shengnan

doi:10.1016/j.biortech.2015.12.058

Cited by 145 publications

(52 citation statements)

References 32 publications

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“…3b). The results suggest that the optimum temperature range for degradation was between 35 ºC and 45 ºC, which was in accordance with the conclusion of Pearce et al 27 Generally, the high concentrations of salts existing in textile industrial effluents will affect the microbial growth and dye biodegradation efficiency by causing plasmolysis of cells 7,13 . As shown in Fig.…”

Section: F I G 2 -Effects Of Carbon Sources (A) Dextrin Concentratsupporting

confidence: 89%

Biodegradation of Acid Scarlet 3R by a New Salt-tolerant Strain Alcaligenes faecalis LJ-3: Character, Enzyme and Kinetics Analysis

Song

Liu

Zhou

et al. 2018

Chem.Biochem.Eng.Q.

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Alcaligenes faecalis LJ-3 is highly efficient in degrading various azo dyes (100 mg L -1 ). Almost 100 % degradation was observed within 16 h at the initial Acid Scarlet 3R concentrations of 1000 mg L -1 under the optimal conditions, which were: 1 g dextrin L -1 , 3 g yeast extract L -1 , NaCl ≤ 30 g L -1 , pH 8.0 and 35-45 ºC. Azoreductase, laccase and NADH-DCIP (nicotinamide adenine dinucleotide-dichlorophenol indophenols) reductase were induced during the degradation of Acid Scarlet 3R. Kinetics study of degradation experiments approximated the first-order reaction. The maximum rate (V max ) and substrate affinity constant (K s ) were found to be 115.90 mg L -1 h -1 and 1193.23 mg L -1 , respectively, using Michaelis-Menten kinetics. This work provides new data characterizing Acid Scarlet 3R degradation by bacteria, as well as practical application potential in biological treatment of industrial effluents containing various azo dyes.

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Section: F I G 2 -Effects Of Carbon Sources (A) Dextrin Concentratsupporting

confidence: 89%

Biodegradation of Acid Scarlet 3R by a New Salt-tolerant Strain Alcaligenes faecalis LJ-3: Character, Enzyme and Kinetics Analysis

Song

Liu

Zhou

et al. 2018

Chem.Biochem.Eng.Q.

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“…The best result of decolourization by P. pantotrophus was obtained by using an inorganic nitrogen source, NH 4 NO 3 , but for the process with species P. putida the best was peptone, an organic nitrogen source. Interesting is that Tan et al [32] used (NH 4 ) 2 SO 4 as a nitrogen source during decolourization, whereas they considered yeast extract a vitamin mixture. When they added both compounds, they achieved the best results in azo dye removal by Scheffersomyces spartinae TLHS-SF1.…”

Section: Resultsmentioning

confidence: 99%

Decolourization of Sugar Beet Molasses Vinasse by Lactic Acid Bacteria – the Effect of Yeast Extract Dosage

Wilk¹,

Krzywonos²,

Borowiak³

et al. 2018

Pol. J. Environ. Stud.

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An increased scientific interest in the colourants from vinasse began in the last decade of the 20 th century, when it was shown that some of them are toxic to animals and plants. The source of colourants in beet vinasse is not beet juice, which is colourless, but the process of obtaining white sugar from beet juice and the technology for producing ethanol from molasses. Dominant coloured compounds in sugar beet molasses vinasse (BMV) are formed in the processes of the degradation of sugars, particularly glucose and fructose. These monosaccharides are the result of the inversion of sucrose, which already occurs in the early stages of the production of beet sugar [1]. Under conditions of high temperature and acidic or alkaline pH, they are degraded to highly reactive intermediates, which, by condensation and polymerization, form coloured polymers. These compounds are formed without enzymes. The non-enzymatic reactions of the hexoses may produce melanoidins, invert alkaline degradation Pol. J. Environ. Stud. Vol. 28, No. 1 (2019), 385-392 AbstractVinasse is the waste product from the production of ethanol that is most loaded with pollutants. Known methods of treating vinasse allow for a reduction in the pollution load, but do not remove the brown colour. The aim of this study was to investigate the effect of the addition of yeast extract ( ), and different amounts of yeast extract addition (2.24, 4.48, and 8.96 g dm -3 ). It was observed that an increase in the YE dose in the medium was followed by a decrease in decolourization of the vinasse. The maximum decolourization was 28.36% ). Regardless of the YE amount added to the medium, removal of invert alkaline degradation products content in all experiments was at a similar level (approx. 13%). With an increased dose of YE, an increase in the caramel content was observed. The biggest melanoidins removal (62.3%) was found in the process with the highest YE dose. The acrylamide, 4-methylimidazole, furfural, 5-hydroxymethylfurfural, and 2-acetyl-4-(1,2,3,4)-tetrahydroxy-butylimidazole were completely assimilated.

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“…xidase (LiP), manganês peroxidase (MnP) e tirosinase, que atuam na clivagem das ligações azo (YANG et al, 2005;SARATALE et al, 2011; et al, 2015;TAN et al, 2016). O processo de descoloração pode ocorrer por adsorção ou por biodegradação.…”

Section: Ensaio De Otimizaçãounclassified

“…O uso de leveduras no tratamento de águas contaminadas com corantes tem despertado a atenção, sobretudo nas últimas duas décadas, em virtude do baixo custo de produção, de remoção de altas concentrações do corante e de fácil adaptação (JAFARI; ZHENG, 2014;TAN et al, 2013;TAN et al, 2016). Além disso, as leveduras apresentam significante vantagem em relação às bactérias e aos fungos filamentosos, por apresentarem rápido crescimento, como as bactérias, e elevada tolerância a condições adversas, como os fungos filamentosos, de maneira específica tolerância a ampla faixa de pH, a temperaturas elevadas e a substâncias tóxicas (DAS; CHARUNMATHI, 2012).…”

Section: Introductionunclassified

Levedura Pichia kudriavzevii SD5 como biocatalizador na descoloração do corante Preto Reativo 5

Delane

Evangelista-Barreto

Cazetta

2020

Eng. Sanit. Ambient.

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RESUMO As leveduras vêm apresentando bons resultados na biodegradação de corantes, tornando-se uma alternativa ambientalmente segura e de custo mais baixo para o tratamento de efluentes contendo corantes industriais. Assim, o objetivo deste trabalho foi estudar a descoloração do azo corante Preto Reativo 5 (PR5) pela levedura Pichia kudriavzevii SD5. Para otimização dos parâmetros de descoloração do Preto Reativo 5 foram realizados dois planejamentos experimentais do tipo Delineamento Composto Central Rotacional (DCCR) 23, sendo cada planejamento composto por 17 ensaios, a 150 rpm durante 24 h. As variáveis estudadas foram pH, temperatura e concentração do corante e tiveram como resposta a porcentagem de descoloração. Também foram realizados testes de toxicidade do sobrenadante após 16 h e 24 h de cultivo, utilizando-se sementes de alface (Lactuca sativa) e o microcrustáceo Artemia salina. Os resultados mostraram que a P. kudriavzevii SD5 é uma levedura tolerante a vários tipos de estresse, uma vez que apresentou capacidade de degradar elevadas concentrações do corante PR5 a 45° C. Entretanto, apenas a temperatura apresentou influência estatisticamente significativa (p < 0,05) na descoloração do PR5. Os bioensaios de toxicidade demonstraram que ocorreu diminuição da toxicidade após 24 h de cultivo, e o perfil de absorbância do sobrenadante apontou para um mecanismo degradativo de descoloração.

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Aerobic decolorization, degradation and detoxification of azo dyes by a newly isolated salt-tolerant yeast Scheffersomyces spartinae TLHS-SF1

Cited by 145 publications

References 32 publications

Biodegradation of Acid Scarlet 3R by a New Salt-tolerant Strain Alcaligenes faecalis LJ-3: Character, Enzyme and Kinetics Analysis

Biodegradation of Acid Scarlet 3R by a New Salt-tolerant Strain Alcaligenes faecalis LJ-3: Character, Enzyme and Kinetics Analysis

Decolourization of Sugar Beet Molasses Vinasse by Lactic Acid Bacteria – the Effect of Yeast Extract Dosage

Levedura Pichia kudriavzevii SD5 como biocatalizador na descoloração do corante Preto Reativo 5

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