Kinetic and Enzymatic Decolorization of Industrial Dyes Utilizing Plant-Based Biosorbents: A Review

2016 ◽  
Vol 33 (9) ◽  
pp. 601-614 ◽  
Author(s):  
Beenish Saba ◽  
Ann D. Christy ◽  
Madeeha Jabeen
Keyword(s):  
Enzymatic Decolorization

Enzymatic decolorization of spent textile dyeing baths composed by mixtures of synthetic dyes and additives

2012 ◽  
Vol 96 (2) ◽  
pp. 395-405 ◽  
Author(s):  
Ilaria Ciullini ◽  
Antonella Gullotto ◽  
Silvia Tilli ◽  
Giovanni Sannia ◽  
Riccardo Basosi ◽  
...  
Keyword(s):  
Synthetic Dyes ◽  
Enzymatic Decolorization ◽  
Textile Dyeing

Pilot-scale Enzymatic Decolorization of Industrial Dyeing Process Wastewater

2006 ◽  
Vol 76 (1) ◽  
pp. 4-11 ◽  
Author(s):  
Graça M. B. Soares ◽  
M. Teresa ◽  
P. Amorim ◽  
Manuela Lageiro ◽  
Maria Costa-Ferreira
Keyword(s):  
Pilot Scale ◽  
Dyeing Process ◽  
Enzymatic Decolorization ◽  
Process Wastewater

Enzymatic decolorization of bacterial pigments from culturally significant marble

2009 ◽  
Vol 10 (3) ◽  
pp. 362-366 ◽  
Author(s):  
Nick Konkol ◽  
Chris McNamara ◽  
Joe Sembrat ◽  
Mark Rabinowitz ◽  
Ralph Mitchell
Keyword(s):  
Enzymatic Decolorization ◽  
Bacterial Pigments

scholarly journals Enzymatic decolorization of melanin by lignin peroxidase from Phanerochaete chrysosporium

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Beenish Sadaqat ◽  
Nazia Khatoon ◽  
Aneela Younas Malik ◽  
Asif Jamal ◽  
Uzma Farooq ◽  
...  
Keyword(s):  
Phanerochaete Chrysosporium ◽  
Lignin Peroxidase ◽  
Structural Changes ◽  
Extracellular Enzyme ◽  
Veratryl Alcohol ◽  
Enzyme Concentration ◽  
Cytotoxic Effects ◽  
Enzymatic Decolorization ◽  
Skin Lightening

AbstractSkin darkening results as a consequence of the accumulation of skin pigment melanin. To combat this, the amplitude of skin lightening agents are commercially available, most of which inhibit melanin synthesis. Decolorization of melanin is an alternative method of skin lightening. In this study, we show that lignin peroxidase (LiP), an extracellular enzyme purified from Phanerochaete chrysosporium NK-1 isolated from a forest soil can effectively degrade and decolorize melanin in vitro. Decolorization conditions including pH, temperature, incubation time, enzyme concentration, and mediator addition were investigated to optimize the reaction conditions. The results indicate that pH 3, 40 °C, 15 IU/ml, and 10 h incubation were the optimal conditions for the decolorization of the melanin. The use of the mediator, veratryl alcohol was also found effective to enhance the efficacy of the melanin decolonization, with up to 92% decolorization. The scanning electron microscopy results showed void spaces on the treated melanin granules as compared to the untreated sample, indicating the degradation of melanin. Changes in the fingerprint region of the melanin were observed. Between wavenumbers 1500–500 cm−1, for example, the presence of new peaks in the treated melanin at 1513, 1464, and 1139 cm−1 CH2, CH3 bend and C–O–C stretch represented structural changes. A new peak at 2144 cm−1 (alkynyl C≡C stretch) was also detected in the decolorized melanin. The cytotoxicity study has shown that the treated melanin and LiP have low cytotoxic effects; however, the mediator of veratryl alcohol could result in high mortality which suggests that its use should be meticulously tested in formulating health and skincare products. The findings of the study suggest that LiP produced by Phanerochaete chrysosporium has the potential to be used in the medical and cosmetic industries, particularly for the development of biobased cosmetic whitening agents.

Enzymatic decolorization of sulfonphthalein dyes

2005 ◽  
Vol 36 (2-3) ◽  
pp. 333-337 ◽  
Author(s):  
R. Shrivastava ◽  
V. Christian ◽  
B.R.M. Vyas
Keyword(s):  
Enzymatic Decolorization

scholarly journals Enzymatic Decolorization of Remazol Brilliant Blue Royal (RB 19) textile dye by White Rot Fungi

2019 ◽  
Vol 4 (1) ◽  
pp. 11 ◽  
Author(s):  
Hamisu Afiya ◽  
Erkurt Emrah Ahmet ◽  
M. Manjur Shah
Keyword(s):  
Enzyme Activity ◽  
Oxygen Demand ◽  
White Rot Fungi ◽  
Ligninolytic Enzymes ◽  
White Rot ◽  
Brilliant Blue ◽  
Textile Dye ◽  
Synthetic Dyes ◽  
Enzymatic Decolorization ◽  
Living Organisms

Synthetic dyes are widely used by different industries with over 7 ×105 metric tons produce globally each year. Dyes pose adverse effects including chemical oxygen demand, visual pollution, cytotoxicity, genotoxicity, mutagenicity and carcinogenicity on various types of living organisms. The versatile white rot fungi (basidiomycetes fungi) have developed specialized ligninolytic enzymes for reductive cleavage of dyes and xenobiotics. The present study optimized the decolorization of Remazol brilliant blue royal (RBBR) dye by enzymatic extracts of Coriolus versicolor and Pleurotusostreatus. Experiments were carried out by varying one parameter i.e. pH (2.5-6.5), temperature (30oC-60oC), enzyme activity (3.3U-20U), dye concentration (10mg/L-125mg/L) and time (0-480mins), while others constant to study its effects on decolorization of RBBR. From the results obtained, the optimum conditions for decolorization of RBBR by extracts of C. versicolor and P. ostreatus were pH 4.0, temperature of 300C, enzyme activity 20U, dye concentrations of 100mg/L and 50mg/L for C. versicolor and P. ostreatus respectively at the end of 480 minutes. At the optimized conditions, decolorizations for C. versicolor and P. ostreatus were 80.42% and 70.42% respectively. Highest laccase activity (19.50U) was recorded in C. versicolor compare to P. ostreatus (1.41U).  

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