Valorizing lignin-like dyes and textile dyeing wastewater by a newly constructed lipid-producing and lignin modifying oleaginous yeast consortium valued for biodiesel and bioremediation

Ali, Sameh S.; Al-Tohamy, Rania; Koutra, Eleni; El-Naggar, Amal H.; Kornaros, Michael; Sun, Jianzhong

doi:10.1016/j.jhazmat.2020.123575

Cited by 79 publications

(28 citation statements)

References 81 publications

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“…Biomass digestion by termites, on the other hand, is far more efficient, typically achieving over 95% within a day [ 37 , 52 ]. Sterigmatomyces halophilus strain SSA-1575, S. halophilus strain SSA1511 [ 35 ], Barnettozyma californica strain SSA1518 [ 35 ], Yarrowia sp. strain SSA1642 [ 35 ], and Meyerozyma guilliermondii strain SSA1522 [ 36 ] have all been tested for azo dye decolorization.…”

Section: Discussionmentioning

confidence: 99%

“…Sterigmatomyces halophilus strain SSA-1575, S. halophilus strain SSA1511 [ 35 ], Barnettozyma californica strain SSA1518 [ 35 ], Yarrowia sp. strain SSA1642 [ 35 ], and Meyerozyma guilliermondii strain SSA1522 [ 36 ] have all been tested for azo dye decolorization. However, in the current study, the efficacy of MnP-producing oleaginous yeasts isolated from WFTs for coupling azo dye decolorization and biodiesel production was first explored.…”

Section: Discussionmentioning

confidence: 99%

“…Concurrently, the ability of oleaginous yeasts to metabolize aromatic substances may boost lipid yields, since the ortho-cleavage pathway of aromatic metabolism creates acetyl CoA and pyruvic acid, both of which are precursors for fatty acid biosynthesis [ 45 ]. Furthermore, yeasts have been identified as prospective enzyme manufacturers, producing xylanases, cellulases, proteases, and lipases, all of which are widely used in bioenergy and waste management [ 35 , 43 , 46 ].…”

Section: Introductionmentioning

confidence: 99%

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Wood-feeding termite gut symbionts as an obscure yet promising source of novel manganese peroxidase-producing oleaginous yeasts intended for azo dye decolorization and biodiesel production

Al-Tohamy

Sun

Khalil

et al. 2021

Biotechnol Biofuels

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Background The ability of oxidative enzyme-producing micro-organisms to efficiently valorize organic pollutants is critical in this context. Yeasts are promising enzyme producers with potential applications in waste management, while lipid accumulation offers significant bioenergy production opportunities. The aim of this study was to explore manganese peroxidase-producing oleaginous yeasts inhabiting the guts of wood-feeding termites for azo dye decolorization, tolerating lignocellulose degradation inhibitors, and biodiesel production. Results Out of 38 yeast isolates screened from wood-feeding termite gut symbionts, nine isolates exhibited high levels of extracellular manganese peroxidase (MnP) activity ranged between 23 and 27 U/mL after 5 days of incubation in an optimal substrate. Of these MnP-producing yeasts, four strains had lipid accumulation greater than 20% (oleaginous nature), with Meyerozyma caribbica SSA1654 having the highest lipid content (47.25%, w/w). In terms of tolerance to lignocellulose degradation inhibitors, the four MnP-producing oleaginous yeast strains could grow in the presence of furfural, 5-hydroxymethyl furfural, acetic acid, vanillin, and formic acid in the tested range. M. caribbica SSA1654 showed the highest tolerance to furfural (1.0 g/L), 5-hydroxymethyl furfural (2.5 g/L) and vanillin (2.0 g/L). Furthermore, M. caribbica SSA1654 could grow in the presence of 2.5 g/L acetic acid but grew moderately. Furfural and formic acid had a significant inhibitory effect on lipid accumulation by M. caribbica SSA1654, compared to the other lignocellulose degradation inhibitors tested. On the other hand, a new MnP-producing oleaginous yeast consortium designated as NYC-1 was constructed. This consortium demonstrated effective decolorization of all individual azo dyes tested within 24 h, up to a dye concentration of 250 mg/L. The NYC-1 consortium's decolorization performance against Acid Orange 7 (AO7) was investigated under the influence of several parameters, such as temperature, pH, salt concentration, and co-substrates (e.g., carbon, nitrogen, or agricultural wastes). The main physicochemical properties of biodiesel produced by AO7-degraded NYC-1 consortium were estimated and the results were compared to those obtained from international standards. Conclusion The findings of this study open up a new avenue for using peroxidase-producing oleaginous yeasts inhabiting wood-feeding termite gut symbionts, which hold great promise for the remediation of recalcitrant azo dye wastewater and lignocellulosic biomass for biofuel production. Graphical Abstract

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Wood-feeding termite gut symbionts as an obscure yet promising source of novel manganese peroxidase-producing oleaginous yeasts intended for azo dye decolorization and biodiesel production

Al-Tohamy

Sun

Khalil

et al. 2021

Biotechnol Biofuels

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“…In a recent study of Ali et.a l [77], a novel oleaginous yeast consortium, OYC-YBC.SH is developed using three yeast cultures (Viz. Yarrowia sp.…”

Section: Chemical Plantmentioning

confidence: 99%

“…1. For instance, Chlorella pseudolambica has been studied in livestock wastewater for biodiesel production [12]; Sterigmatomyces halophilus has been applied in textile dyeing wastewater for bioremediation [13]; and Chlorella vulgaris has Corresponding author: Mohammed B. Al Rayaan, Department of Environmental Sciences and Engineering, King Abdullah University of Science & Technology, Thuwal, Saudi Arabia, Email: Mohammed.alrayaan@kaust.edu.sa been reported for biochar production using rich in ammonia-N swine wastewater as source of nutrient [14]. Most importantly, the valorisation of Oleaginous microorganisms in low-cost substrates like nutrient-rich wastewaters is a circular economy concept that can help improve the economic feasibility of the wastewater treatment plants related industries with a net positive value.…”

Section: Introductionmentioning

confidence: 99%

A Review on Oleaginous Microorganisms for Biological Wastewater Treatment: Current and Future Prospect

2020

J. Environ. Treat. Tech.

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The water scarcity issue is becoming a critical issue to the climate change, industrialization and urbanization. Prompt to the advances in biotechnology, Oleaginous microorganisms have been discovered and successfully applied in biological wastewater treatments, which are highly effective for wastewater clean-up and energy efficient lipid conversion to value-added products. This paper aims to review the recent advances of the application of different types of Oleaginous microorganisms (e.g. yeasts, microalgae, and fungi) as well as the advantages, limitations and application fields (food industry, municipal waste and chemical plant). The future prospect and challenges of Oleaginous microorganism that warrant in environmental settings or engineered systems are also highlighted in the review. In order to improve the Technology Readiness Level (TRL), the future research direction should be more focussed on the economic and environmental studies.

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Biodegradation of Azo Dye Pollutants Using Microorganisms

Gomaa

Emran²,

El-Gammal³

2022

Handbook of Biodegradable Materials

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Valorizing lignin-like dyes and textile dyeing wastewater by a newly constructed lipid-producing and lignin modifying oleaginous yeast consortium valued for biodiesel and bioremediation

Cited by 79 publications

References 81 publications

Wood-feeding termite gut symbionts as an obscure yet promising source of novel manganese peroxidase-producing oleaginous yeasts intended for azo dye decolorization and biodiesel production

Wood-feeding termite gut symbionts as an obscure yet promising source of novel manganese peroxidase-producing oleaginous yeasts intended for azo dye decolorization and biodiesel production

A Review on Oleaginous Microorganisms for Biological Wastewater Treatment: Current and Future Prospect

Biodegradation of Azo Dye Pollutants Using Microorganisms

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