The application of catalase for the elimination of hydrogen peroxide residues after bleaching of cotton fabrics

Amorim, Alexandra M.; Gasques, Marcelo D. G.; Andreaus, Jürgen; Scharf, Mauro

doi:10.1590/s0001-37652002000300006

Cited by 55 publications

(23 citation statements)

References 10 publications

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“…Esta catalase apresentou melhor desempenho e se mostrou mais segura em comparação à enzima bovina [18]. A catalase também se mostrou vantajosa quando utilizada para o tratamento de tecidos de algodão após o processo de clareamento com peróxido de hidrogênio, apresentando uma melhora significativa no tingimento destes tecidos com corante reativo bifuncional [19].…”

Section: Mfrfbelo; Alfsouza Scientia Plena 12 071001 (2016)unclassified

Estudo cinético da enzima catalase (E.C. 1.11.1.6) de extrato bruto de batata doce (Ipomoea batatas)

Belo¹,

Souza²

2016

Scientia Plena

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Este trabalho utilizou um extrato bruto de batata doce (Ipomoea batatas) para estudar o efeito da variação de alguns parâmetros cinéticos (pH, temperatura, concentração de enzima e substrato) sobre a atividade da enzima catalase (hidroperoxidase, E.C. 1.11.1.6). Esta enzima está presente na maioria dos organismos e serve para proteger a célula de espécies reativas de oxigênio, subproduto de algumas reações metabólicas e responsáveis pelo estresse oxidativo. Os resultados obtidos sugerem que a catalase de batata doce apresenta estabilidade e atividade catalítica máxima na faixa de pH 6,0 – 9,0 e de temperatura 25 – 30 °C, utilizando-se para ensaios da variação de concentração de enzima e substrato pH 7,0 e temperatura de 30 °C. A catalase foi ensaiada quanto a variação da concentração de substrato de acordo com a cinética de Michaelis-Menten, apresentando um valor aparente de velocidade máxima (Vmáx) de 0,31 mol/L/min. e Km aparente de 0,19 mol/L.

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Section: Mfrfbelo; Alfsouza Scientia Plena 12 071001 (2016)unclassified

Estudo cinético da enzima catalase (E.C. 1.11.1.6) de extrato bruto de batata doce (Ipomoea batatas)

Belo¹,

Souza²

2016

Scientia Plena

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“…The use of a commercial catalase for the elimination of hydrogen peroxide residues from cotton fabrics improved dyeing behavior and the color yield increased considerably with a reactive bifunctional monofluortriazinyl dye [2].…”

Section: Peroxide Killermentioning

confidence: 99%

Sustainable Textile Wet Processing: Applications of Enzymes

Choudhury

2014

Textile Science and Clothing Technology

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Enzymes are a sustainable alternative to the harsh toxic chemicals in the textile industry. As enzymes operate in moderate conditions of temperature and pH, energy consumption is reduced, thereby reducing greenhouse gas emissions. Both water consumption and waste generation during textile manufacturing are also minimized by enzyme use. As the enzymes are very specific in their actions, minimum by-products are generated. The risks to humans, wildlife, and the environment are minimized. Enzymes can be utilized in several steps of textile processing namely desizing, scouring, bleaching, and biopolishing of cotton, degumming of silk, bleaching and shrinkproofing of wool, biostoning (of denim), and for treatment of textile effluents.

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“…The bleaching activity is enhanced under alkaline conditions and high temperatures [9,251,262]. Being an oxidizing agent, H 2 O 2 can cause degradation of reactive dyes [257] such as those of the triazinyl or vinylsulfone type.…”

Section: Catalasementioning

confidence: 99%

“…Amorim and coworkers [9] analyzed the suitability of a commercial catalase from Novo Nordisk for the removal of H 2 O 2 residues from bleached fabric and its subsequent effect on dyeing with a bifunctional reactive dye. They concluded that use of the catalase had a noticeable and enhanced effect on the dyeing process in addition to improved color yield.…”

Section: Catalasementioning

confidence: 99%

Alkaliphilic bacteria: applications in industrial biotechnology

Sarethy

Saxena

Kapoor

et al. 2011

J Ind Microbiol Biotechnol

116

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Alkaliphiles are interesting groups of extremophilic organisms that thrive at pH of 9.0 and above. Many of their products, in particular enzymes, have found widespread applications in industry, primarily in the detergent and laundry industries. While the enzymes have been a runaway success from the industrial point of view, many more products have been reported from alkaliphiles such as antibiotics and carotenoids. Less known are their potential for degradation of xenobiotics. They also play a key role in biogeocycling of important inorganic compounds. This review provides an insight into the huge diversity of alkaliphilic bacteria, the varied products obtained from them, and the need for further investigations on these interesting bacteria.

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The application of catalase for the elimination of hydrogen peroxide residues after bleaching of cotton fabrics

Cited by 55 publications

References 10 publications

Estudo cinético da enzima catalase (E.C. 1.11.1.6) de extrato bruto de batata doce (Ipomoea batatas)

Estudo cinético da enzima catalase (E.C. 1.11.1.6) de extrato bruto de batata doce (Ipomoea batatas)

Sustainable Textile Wet Processing: Applications of Enzymes

Alkaliphilic bacteria: applications in industrial biotechnology

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