Conservation of cellulase enzyme in biopolishing application of cotton fabrics

Kumar, Vishnu; Meenakshisundaram, S.; Selvakumar, N.

doi:10.1080/00405000701476351

Cited by 26 publications

(16 citation statements)

References 13 publications

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“…The industrial enzymatic treatment of cellulosic textile materials with cellulases is applied in two major procedures, that is bio‐polishing and bio‐stonewashing 1–3. In industrial applications, low cellulase concentrations and treatment times are usually used to randomly modify the fibers1, 2, 4 and it has been shown that 5% weight loss of fibers in cellulase modification is enough for bio‐polishing purposes. Cellulase enzyme treatment of cellulosic substrates has been studied extensively and the kinetics of the reaction as well as the role of reaction's parameters is well‐known 5–9.…”

Section: Introductionmentioning

confidence: 99%

Effect of phase separation on spherulitic growth rate of PP/EPR in‐reactor alloys

Liu¹,

Li²,

Xu³

et al. 2011

J of Applied Polymer Sci

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In this work, the effect of phase separation on the spherulitic growth rate of a polypropylene/ethylene-propylene random (PP/EPR) copolymer in-reactor alloy was investigated. The PP/EPR in-reactor alloy was either directly quenched from homogeneous melt to crystallization temperature or held at various temperatures for phase separation prior to crystallization. It is found that at lower crystallization temperatures previous phase separation in the melt retards the crystallization rate. The higher the phase separation rate, the smaller the spherulitic growth rate. This can be attributed to faster crystallization rate than the rate of secondary phase separation. The composition of the PP-rich phase and corresponding depression of the equilibrium melting temperature of PP vary with phase separation temperature. On the other hand, at higher crystallization temperature, previous phase separation in the melt has little effect on the spherulitic growth rate because secondary phase separation can take place prior to crystallization. The transition temperature from regime II to regime III also shifts to lower temperature as the phase separation temperature increases.

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Section: Introductionmentioning

confidence: 99%

Effect of phase separation on spherulitic growth rate of PP/EPR in‐reactor alloys

Liu¹,

Li²,

Xu³

et al. 2011

J of Applied Polymer Sci

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“…For bio polishing acid and neutral cellulases bath is maintained at 4.5-5.5 and 7 respectively, the process is heated at 55 o C. Finally, the process is terminated at the temperature 85 o C. The immobilization of cellulase can restrict its action to fiber surface. Various immobilization of cellulases enzyme methods improve thermal stability and reusability [125].…”

Section: Bio-polishingmentioning

confidence: 99%

Sustainable Textile Processing by Enzyme Applications

Kabir¹,

Koh²

2022

Biodegradation Technology of Organic and Inorganic Pollutants

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Enzymatic treatments have gained popularity in the textile industry because of environmental friendly and energy conserving alternatives. Advancement in biotechnology and modification of enzymes has been focused based on various textile process applications. All the manufacturing steps of textile chemical processing, enzymes are using for implementations of the green technology to meet up the challenge of fourth industrial revolution. In this category, amylases, peroxidase used for desizing and bleaching, cellulase activates for bio polishing and denim finishing. This chapter summarizes the current developments of enzyme technology and highlights the environment-friendly and sustainable enzymatic textile processing in the textile industry.

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“…Pamuklu ve pamuklu karýþým materyallerinin terbiyesinde genel olarak kullanýlan enzimler; amilaz, proteaz, selülaz, pektinaz, lipaz, katalaz ve lakkazdýr. Kullanýlan bu enzimler, materyalde, haþýl sökme, hidrofilleþtirme, yumuþatma, biyoparlatma, denim yýkama ve diðer çeþitli etkileri saðlamak amacýyla kullanýlmaktadýr [11]. Kullanýldýðý materyallere tutum, görünüm ve diðer yüzey karakteristiklerini geliþtirme gibi avantajlar saðlamaktadýr [3,12].…”

Section: Gýrýþunclassified

Pamuklu Dokuma Kumaşların Boyamaya Hazırlık İşlemlerinde Enzim Kullanım Olanaklarının İncelenmesi ve Kombine Proses Geliştirilmesi

Sancar¹,

Paksoy²,

Balcı³

et al. 2012

Tekstil ve Mühendis

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Bu çalýþmada, % 100 pamuklu dokuma kumaþlarýn ön terbiyesinde tamamen enzim kullanýlarak çevre dostu bir ön terbiye prosesi uygulama, amilaz ve pektinaz enzimlerini kombine çalýþarak iþlem adýmlarýný kýsaltma ve aðartma iþlemlerinde lakkaz enzimi kullanýlarak fazladan bir peroksit parçalama iþlemi (katalaz iþlemi) yükünden kurtulabilme olanaklarý araþtýrýlmýþtýr. Bu amaçla uygulanan her bir iþlemden sonra kumaþlarýn haþýl sökülebilirlik, hidrofilite ve beyazlýk özellikleri incelenmiþtir; ayrýca ön iþlemi tamamlanmýþ kumaþlar üç farklý konsantrasyonda boyanarak, boyama sonrasý CIELab deðerleri ve haslýk sonuçlarý da incelenmiþtir. Çalýþma sonuçlarý, pektinaz ve amilaz enziminin kombine çalýþýlarak iþlem adýmlarýnýn kýsaltýlabileceðini ve böylece su, enerji ve zaman tasarrufu saðlanabileceðini, lakkaz enziminin açýk renk boyanacak kumaþlar için yeterli bir beyazlýk saðlayamadýðýný; kumaþtan iyi bir beyazlýk istendiðinde peroksit aðartmasý ve dolayýsýyla katalaz iþlemi kullanýmýnýn kaçýnýlmaz olduðunu göstermiþtir.

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Conservation of cellulase enzyme in biopolishing application of cotton fabrics

Cited by 26 publications

References 13 publications

Effect of phase separation on spherulitic growth rate of PP/EPR in‐reactor alloys

Effect of phase separation on spherulitic growth rate of PP/EPR in‐reactor alloys

Sustainable Textile Processing by Enzyme Applications

Pamuklu Dokuma Kumaşların Boyamaya Hazırlık İşlemlerinde Enzim Kullanım Olanaklarının İncelenmesi ve Kombine Proses Geliştirilmesi

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