Biotransformation kinetics of pharmaceutical and industrial micropollutants in groundwaters by a laccase cocktail from Pycnoporus sanguineus CS43 fungi

Rodríguez-Delgado, Melissa Marlene; Orona-Návar, Carolina; García-Morales, Raúl; Hernández-Luna, Carlos E.; Parra‐Saldívar, Roberto; Mahlknecht, Jürgen; Ornelas‐Soto, Nancy

doi:10.1016/j.ibiod.2015.12.003

Cited by 54 publications

(22 citation statements)

References 54 publications

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“…Groundwater contamination, by persistent, bioaccumulative and bioactive compounds due to intensive industrialization is a critical environmental issue [1][2][3]. The wide range of chemical compounds complicates the attempts to protect aquifers from their contamination [4,5].…”

Section: Introductionmentioning

confidence: 99%

The Spatial Distribution of the Microbial Community in a Contaminated Aquitard below an Industrial Zone

Balaban

Yankelzon

Adar

et al. 2019

Water

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The industrial complex Neot Hovav, in Israel, is situated above an anaerobic fractured chalk aquitard, which is polluted by a wide variety of hazardous organic compounds. These include volatile and non-volatile, halogenated, organic compounds. In this study, we characterized the indigenous bacterial population in 17 boreholes of the groundwater environment, while observing the spatial variations in the population and structure as a function of distance from the polluting source. In addition, the de-halogenating potential of the microbial groundwater population was tested through a series of lab microcosm experiments, thus exemplifying the potential and limitations for bioremediation of the site. In all samples, the dominant phylum was Proteobacteria. In the production plant area, the non-obligatory organo-halide respiring bacteria (OHRB) Firmicutes Phylum was also detected in the polluted water, in abundancies of up to 16 %. Non-metric multidimensional scaling (NMDS) analysis of the microbial community structure in the groundwater exhibited clusters of distinct populations following the location in the industrial complex and distance from the polluting source. Dehalogenation of halogenated ethylene was demonstrated in contrast to the persistence of brominated alcohols. Persistence is likely due to the chemical characteristics of brominated alcohols, and not because of the absence of active de-halogenating bacteria.

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Section: Introductionmentioning

confidence: 99%

The Spatial Distribution of the Microbial Community in a Contaminated Aquitard below an Industrial Zone

Balaban

Yankelzon

Adar

et al. 2019

Water

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“…Among the basidiomycetes, the genus Pycnoporus has been investigated due to its high ability to biodegrade and/or fragment composites, natural polymers, such as lignin, water pollutants and other recalcitrant compounds [30][31][32]. The aim of this work is to determine the contribution of a basidiomycete fungus to potential losses in the hardness, impact strength (toughness) and weight loss of a WPC, giving an indication of the susceptibility of a Eucalyptus-based composite to biodegradation.…”

Section: Introductionmentioning

confidence: 99%

Deterioration of Wood Plastics Composites by the White-Rot Fungus Pycnoporus sanguineus

et al. 2019

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Wood plastic composites (WPC) are characterized by the mixing of wood fibers with plastics, allowing the production of new products whose characteristics are in several aspects superior to those of the original products and represent an expanding class of durable and low-cost materials in which their uses can reduce the environmental footprint and the dependence on petroleum products. Nevertheless, WPC has some setbacks, including biodegradation, which shortens its life span. In this study, the wood composite was exposed to the white-rot fungus Pycnoporus sanguineus in order to evaluate its resistance to biodegradation. The WPC was prepared with a 1:1 ratio of Eucalyptus spp. bark as reinforcement agent and polypropylene as matrix. Mechanical and rheological properties and mass loss were evaluated from 15 to 120 days of fungus exposure. After 15 days, a mass loss was detected, which transmitted a negligible effect on the impact resistance of the composite. For the 120-day fungus-exposed composite, the fungus produced a biofilm under the WPC that create a special environment for lignocellulosic consuming led to deterioration of the mechanical properties and minor changes on the thermal–chemical stability of the WPC. Finally, the study gave a great indication of the susceptibility of a Eucalyptus-based composite to biodegradation.

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“…The laccases produced by Pycnoporus sp. have been under study in the last decade [59] for the treatment of textile effluents [60], biotransformation of pharmaceutical microcontaminants [61], and degradation of endocrine disruptors [47].…”

Section: Factors That Affect Laccase Productionmentioning

confidence: 99%

Biological Consortia Designed for Laccase Production and Dye Removal

González¹,

Villagómez²,

Madariaga³

et al. 2018

Preprint

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Biotransformation kinetics of pharmaceutical and industrial micropollutants in groundwaters by a laccase cocktail from Pycnoporus sanguineus CS43 fungi

Cited by 54 publications

References 54 publications

The Spatial Distribution of the Microbial Community in a Contaminated Aquitard below an Industrial Zone

The Spatial Distribution of the Microbial Community in a Contaminated Aquitard below an Industrial Zone

Deterioration of Wood Plastics Composites by the White-Rot Fungus Pycnoporus sanguineus

Biological Consortia Designed for Laccase Production and Dye Removal

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