Aerobic decolorization and detoxification of Acid Scarlet GR by a newly isolated salt-tolerant yeast strain Galactomyces geotrichum GG

Guo, Guanhua; Tian, Fang; Zhao, Yuhai; Tang, Maomao; Liu, Weijie; Li, Cong; Xue, Shuwen; Kong, Weina; Sun, Yanmei; Wang, Shiwei

doi:10.1016/j.ibiod.2019.104818

Cited by 37 publications

(24 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These results suggested that the activities of three LMEs were all inhibited by higher salinity which was different from azoreductase, NADH-DCIP reductase, CMCase, and xylanase. The activities of Lac and LiP in the cell extract of halotolerant yeast strain Galactomyces geotrichum GG were significantly reduced, indicating the inhibition of Lac and LiP by higher salinity (Guo et al, 2019). Similarly, the inhibition of salinity to the LMEs activities azo dye degrading microorganisms under high salt t condition was also reported previously (Hussain et al, 2013;Liu et al, 2017;Song et al, 2017).…”

Section: Enzyme Activity and Performancesupporting

confidence: 82%

“…Over the past decades, microbial degradation of azo dyes has been accomplished by bacteria, actinomycetes, yeasts, fungi, and algae (Enayatizamir et al, 2011;Agrawal et al, 2014;Zhang et al, 2015;Ali et al, 2019;Giovanella et al, 2020). On the other hand, some extracellular microbial enzymes have been reported for efficient degradation of recalcitrant azo dyes, including laccase (Lac), lignin peroxidase (LiP), manganese dependent peroxidase (MnP), and NADH-dichlorophenol indophenol (NADH-DCIP) reductase (Guo et al, 2019;Giovanella et al, 2020). The LMEs that possess a remarkable capability to degrade lignin and ligninlike substances mainly include LiP, MnP, and Lac along with other supporting enzymes, such as aryl alcohol oxidase, glyoxal oxidase, oxalate decarboxylase and versatile peroxidase (Iqbal et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…The effluents of the wastewater textile industry contain azo dyes and a high concentration of salts. It has been reported that the presence of salt induces the high osmotic pressure, which challenges microorganisms in the processing of textile wastewater (Khalid et al, 2012;Liu et al, 2017;Yang et al, 2018;Guo et al, 2019). Halophilic and halotolerant (salt-tolerant) microorganisms have biological advantages and provide high treatment efficiency, especially for the high concentration of salty azo dye wastewater (Yu et al, 2015;Guo et al, 2019;Giovanella et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…As far as it is known, many bacteria and filamentous fungi were reported for their dye decolorization efficiency. However, relatively limited studies investigated the biodegradation of azo dyes by halotolerant unicellular fungi, such as yeasts (Song et al, 2017;Guo et al, 2019). Hence, it is significant to search for more halotolerant yeasts valued for the treatment of azo dye wastewater with high salinity.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Performance of a Newly Isolated Salt-Tolerant Yeast Strain Sterigmatomyces halophilus SSA-1575 for Azo Dye Decolorization and Detoxification

et al. 2020

View full text Add to dashboard Cite

The effective degradation of hazardous contaminants remains an intractable challenge in wastewater processing, especially for the high concentration of salty azo dye wastewater. However, some unique yeast symbionts identified from the termite gut system present an impressive function to deconstruct some aromatic compounds, which imply that they may be valued to work on the dye degradation for various textile effluents. In this investigation, a newly isolated and unique yeast strain, Sterigmatomyces halophilus SSA-1575, was identified from the gut system of a wood-feeding termite (WFT), Reticulitermes chinensis. Under the optimized ambient conditions, the yeast strain SSA-1575 showed a complete decolorization efficiency on Reactive Black 5 (RB5) within 24 h, where this azo dye solution had a concentration of a 50 mg/L RB5. NADH-dichlorophenol indophenol (NADH-DCIP) reductase and lignin peroxidase (LiP) were determined as the key reductase and oxidase of S. halophilus SSA-1575. Enhanced decolorization was recorded when the medium was supplemented with carbon and energy sources, including glucose, ammonium sulfate, and yeast extract. To understand a possible degradation pathway well, UV-Vis spectroscopy, FTIR and Mass Spectrometry analyses were employed to analyze the possible decolorization pathway by SSA-1575. Determination of relatively high NADH-DCIP reductase suggested that the asymmetric cleavage of RB5 azo bond was mainly catalyzed by NADH-DCIP reductase, and finally resulting in the formation of colorless aromatic amines devoid of any chromophores. The ecotoxicology assessment of RB5 after a decolorization processing by SSA-1575, was finally conducted to evaluate the safety of its metabolic intermediates from RB5. The results of Microtox assay indicate a capability of S. halophilus SSA-1575, in the detoxification of the toxic RB5 pollutant. This study revealed the effectiveness of halotolerant yeasts in the eco-friendly remediation of hazardous pollutants and dye wastewater processing for the textile industry.

show abstract

Section: Enzyme Activity and Performancesupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performance of a Newly Isolated Salt-Tolerant Yeast Strain Sterigmatomyces halophilus SSA-1575 for Azo Dye Decolorization and Detoxification

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Yeasts, by contrast, have many advantages over bacteria and filamentous fungi, which present a potential capability to deal with some stringent wastewater conditions, such as a salty or acidic condition, and particularly in regard to their unique non-pathogenicity and fast growing nature 12 – 14 . As far as it is known, relatively limited studies are available in literature about yeast based azo dye decolorization under hypersaline conditions 15 – 17 .…”

Section: Introductionmentioning

confidence: 99%

Ecofriendly biodegradation of Reactive Black 5 by newly isolated Sterigmatomyces halophilus SSA1575, valued for textile azo dye wastewater processing and detoxification

Al-Tohamy

Sun

Fareed

et al. 2020

Sci Rep

134

View full text Add to dashboard Cite

A total of seven yeast strains from 18 xylanolytic and/or xylose-fermenting yeast species isolated from the wood-feeding termite Reticulitermes chinenesis could efficiently decolorize various azo dyes under high-salt conditions. Of these strains, a novel and unique azo-degrading and halotolerant yeast, Sterigmatomyces halophilus SSA1575, has been investigated in this study. This strain could significantly decolorize four combinations of a mixture of dyes. It showed a high capability for decolorizing Reactive Black 5 (RB5) even at 1,500 mg L −1 . The strain SSA1575 still showed a high capability for decolorizing a 50 mg L −1 RB5 with a salt mixing at a NaCl concentration of up to 80 g L −1 . It also exhibited significant ability to decolorize repeated additions of dye aliquots, with a reduction in time of up to 18 h. Most of the tested carbon and nitrogen sources could significantly enhance a RB5 decolorization. However, this process was inhibited by the addition of sucrose and sodium nitrate. NADH-dichlorophenol indophenol (NADH-DCIP) reductase and lignin peroxidase were determined as the key reductase and oxidase of S. halophilus SSA1575. Finally, strain SSA1575, can effectively detoxify RB5 into non-toxic products. Overall, S. halophilus SSA1575, might be a promising halotolerant yeast valued for the treatment of various textile effluents with high salinity.

show abstract

Microbial bioremediation of Azo dyes: An environmentally sustainable technology

Panwar

Mahajan

Kaushal

2023

Remediation Journal

View full text Add to dashboard Cite

Azo dyes, which are the most commonly used dyes in the textile industry, are aromatic compounds with N═N-groups. The treatment of these pollutants has been receiving considerable attention due to their persistence and release of dyes into the environment. The existing treatment approaches are not only expensive but also result in the production of concentrated sludge, which creates a secondary disposal issue. Under particular ecological conditions, a variety of microbes, including bacteria, fungi, algae, and yeasts, can not only decolorize numerous dyes but can also degrade them. In this respect, microbial degradation is a successful, cost-effective, biologically friendly, and ecologically sustainable treatment strategy. This review paper discusses research articles identified in the ScienceDirect bibliographic database for the last 10 years (from January 1, 2010 to June 29, 2022). Only the most appropriate research articles were included in the review process which was identified by searches with keyword phrases Azo-dye degradation with bacteria, fungi, algae, yeast, and microbial consortia. The review paper also emphasizes the constraints that persist and the future scope for the degradation of dyes via genetic engineering. | INTRODUCTIONColor is an important element of human life. Humans, on the whole, prefer to wear colored clothing, consume colored food, and even take colored medicines. The high demand for color in the paper, textile, cosmetics, and food industries has led to an increase in the usage of dyes since the industrial revolution. There currently are approximately 10,000 commercially accessible dyes, and over 700,000 tonnes of dyes are manufactured each year (Tkaczyk et al., 2020).Dye-bearing effluents from industries such as textile, paper and pulp, chemical, petrochemical, and dyeing, include hazardous and persistent organic and inorganic pollutants that can impact the natural environment (Wang et al., 2021). Organic dyes and their intermediates are widely used in the paint, ink, plastics, and textile cosmetics sectors. Azo dyes, contain chromophore -N═N-Azo groups which are responsible for the stability of dyes in water (Singh & Dwivedi, 2020). Azo dyes are the most popular and diverse types of man-made colorants with applications in printing, food, cosmetic, and textile manufacturing. Azo dyes can be carcinogenic, toxic, and adversely affect human health and the environment, including aquatic ecosystems (Singh & Dwivedi, 2020). Due to their complex aromatic structure and xenobiotic characteristics, most dye molecules are difficult to degrade. As a result, different effective treatment methods and strategies for removing these harmful color pollutants from water bodies are necessary (

show abstract

Aerobic decolorization and detoxification of Acid Scarlet GR by a newly isolated salt-tolerant yeast strain Galactomyces geotrichum GG

Cited by 37 publications

References 38 publications

Performance of a Newly Isolated Salt-Tolerant Yeast Strain Sterigmatomyces halophilus SSA-1575 for Azo Dye Decolorization and Detoxification

Performance of a Newly Isolated Salt-Tolerant Yeast Strain Sterigmatomyces halophilus SSA-1575 for Azo Dye Decolorization and Detoxification

Ecofriendly biodegradation of Reactive Black 5 by newly isolated Sterigmatomyces halophilus SSA1575, valued for textile azo dye wastewater processing and detoxification

Microbial bioremediation of Azo dyes: An environmentally sustainable technology

Contact Info

Product

Resources

About