Article
Chemistry, Physical
Adarsh Kumar, Ajay Kumar Singh, Muhammad Bilal, Ram Chandra
Summary: This review explores the adaptive mechanisms of extremophilic microbial communities and extremophilic ligninolytic enzymes, as well as their biochemical properties and activity. The research emphasizes the emerging applications of ligninolytic enzymes in a broad range of industrial and biotechnological potentials.
Article
Biotechnology & Applied Microbiology
Issa Fall, Quentin Czerwiec, Sofiene Abdellaoui, Bastien Doumeche, Marjorie Ochs, Caroline Remond, Harivony Rakotoarivonina
Summary: Lignocellulosic biomass is a rich source of aromatic compounds, but their complex chemical structure makes it challenging to separate and utilize them. This study identified a thermophilic bacterium that produces stable and efficient enzymes for lignin transformation, offering potential solutions for biorefinery processes.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Raja Tahir Mahmood, Muhammad Javaid Asad, Muhammad Asgher, Falak Sher Khan, Khursheed Muzammil, Nazim Nasir, Pervez Anwar, Muhammad Awais
Summary: The current study aimed to optimize the biodegradation potential of a brown rot fungus, Piptoporus betulinus IEBL-3, on three different industrial textile effluents to reduce environmental pollution. The study found that the biological treatment effectively reduced the Biological Oxygen Demand and Chemical Oxygen Demand values of the effluents below the recommended standards. Additionally, ligninolytic enzymes, especially lignin peroxidase, played a crucial role in the biodegradation process.
APPLIED SCIENCES-BASEL
(2022)
Article
Microbiology
Lina Dafne Sanchez-Corzo, Peggy Elizabeth Alvarez-Gutierrez, Rocio Meza-Gordillo, Juan Jose Villalobos-Maldonado, Sofia Enciso-Pinto, Samuel Enciso-Saenz
Summary: This study evaluated the growth of wood-decay fungi on lignocellulosic materials and the production of lignocellulolytic enzymes from collected fungi in Chiapas, Mexico. Certain strains showed high growth rates and hydrolase activities, indicating their potential for oxidizing complex molecules like lignin.
Article
Biochemistry & Molecular Biology
Issa Fall, Bastien Doumeche, Sofiene Abdellaoui, Caroline Remond, Harivony Rakotoarivonina, Marjorie Ochs
Summary: This article presents a novel electrochemical tool based on lignin-coated paper electrodes for the detection and characterization of ligninolytic activity. The suitability of this method has been demonstrated using a catalaseperoxidase isolated from Thermobacillus xylanilyticus.
BIOELECTROCHEMISTRY
(2024)
Review
Biotechnology & Applied Microbiology
Tatiane Brugnari, Dayane Moreira Braga, Camila Souza Almeida dos Santos, Bruno Henrique Czelusniak Torres, Tatiani Andressa Modkovski, Charles Windson Isidoro Haminiuk, Giselle Maria Maciel
Summary: Laccases are versatile enzymes that have a wide range of applications and are known as eco-friendly or green enzymes. In recent years, research and patents related to immobilized laccases have increased significantly, but the real industrial or environmental use of laccases is still challenged by cost-benefit considerations.
BIORESOURCES AND BIOPROCESSING
(2021)
Article
Biotechnology & Applied Microbiology
Evanildo F. de Souza Jr, Isabella M. T. S. Santos, Felipe Souto, Veronica Calado, Nei Pereira Jr
Summary: The production of ligninolytic enzymes was optimized using response surface methodology, and a fed-batch strategy was implemented using a bubble column reactor. The optimized experimental condition significantly increased the production of Lac and MnP.
FERMENTATION-BASEL
(2022)
Article
Environmental Sciences
Andrej Grobin, Robert Roskar, Jurij Trontelj
Summary: This study measured the concentrations of a group of hormonal compounds in water and evaluated the removal efficiency of wastewater treatment plants (WWTPs). The results showed that the concentrations of hormonal compounds in water were influenced by the removal efficiency of WWTPs, and there might be other sources of contamination. Most of the hormonal compounds were effectively removed, but improvement of removal techniques is still needed. The compounds E2 and EE2 contributed the most to the total endocrine disruptor risk. A comprehensive risk assessment determined high risk values for several compounds in water.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Chemistry, Physical
Lina Liu, Sarmad Ahmad Qamar, Muhammad Bilal, Hafiz M. N. Iqbal
Summary: Ligninolytic enzymes, especially lignin peroxidase (LiP), are widely used in whitening cosmetics due to their high melanin decolorization potential. LiP, with its special redox potential, is a key enzyme in dermatology and cosmetology, commonly used in cosmetics formulations. The versatility of LiP in degrading various substrates makes it a promising alternative to traditional skin-lightening agents, with the ability to treat pigmentation disorders in a sustainable manner.
Article
Microbiology
Prerna Verma, Sonam Tripathi, Sangeeta Yadav, Ram Chandra
Summary: The aim of this study was to optimize the production of Ligninolytic enzyme for the degradation of complex pollutants in pulp paper industrial effluent. Two bacterial strains were isolated and identified as efficient producers of ligninolytic enzymes. These enzymes showed optimum production under specific conditions and were effective in degrading pollutants in wastewater. This study provides important guidance for the industrial sector in treating complex wastewater.
ARCHIVES OF MICROBIOLOGY
(2022)
Review
Environmental Sciences
Ivon Vazquez-Tapia, Tania Salazar-Martinez, Mariana Acosta-Castro, Karen Andrea Melendez-Castolo, Jurgen Mahlknecht, Pabel Cervantes-Aviles, Mariana Capparelli, Abrahan Mora
Summary: This review examines the occurrence of emerging organic contaminants and endocrine disruptors in wastewater, surface water, and groundwater in Mexico. The study found that the types and concentrations of these contaminants varied in different samples and locations. While raw wastewater had the highest number of detected compounds, surface waters also showed concentrations of some compounds exceeding international guidelines. Groundwater was primarily affected by the irrigation of croplands with raw wastewater. However, soils and aquifers were found to have a capacity to attenuate the presence of contaminants from wastewater. Despite water pollution being a major environmental concern in Mexico, there is a lack of studies on the occurrence of emerging organic contaminants in Mexican waters.
Article
Environmental Sciences
Andrej Grobin, Robert Roskar, Jurij Trontelj
Summary: This comprehensive review evaluated the risk of 53 high-potency endocrine disrupting substances in surface water, highlighting significant risks posed by compounds such as tamoxifen and bisphenols. The study also proposed a new prioritization system to guide the inclusion of emerging substances in environmental monitoring lists.
Article
Materials Science, Paper & Wood
Aarthi Ravichandran, Ramya G. Rao, Shanubhoganahalli Maheswarappa Gopinath, Manpal Sridhar
Summary: This study aimed to enhance the yield of versatile peroxidase from Lentinus squarrosulus by optimizing physiological factors such as nutrients, inducers, temperature, and pH. The research achieved high levels of versatile peroxidase production by the fungus under optimal conditions. The results demonstrated the potential of this enzyme in biotechnological applications, specifically for enriching ruminant feed.
Article
Biochemical Research Methods
Yan Wu, Kaixing Luo, Yanjuan Liu, Wei Chen, Zhengwu Bai, Sheng Tang
Summary: In this study, a new mixed-mode stationary phase Sil-Ur-DD was synthesized and showed excellent separation performance in hydrophilic interaction chromatography and reversed-phase chromatography modes. The retention was contributed by multiple interactions. Furthermore, the proposed preparation method is cost-effective and environmentally friendly, providing a promising way for recycling and utilization of discarded chromatographic packing materials.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Chemistry, Analytical
Jose Gustavo Ronderos-Lara, Hugo Saldarriaga-Norena, Mario Alfonso Murillo-Tovar, Laura Alvarez, Josefina Vergara-Sanchez, Victor Barba, Jorge Antonio Guerrero-Alvarez
Summary: This study assessed the distribution and potential estrogenic risk of BPA, 4NP, NPX, IBU, E-2, and EE2 in water and sediments of the Apatlaco river micro-basin in Morelos, Mexico. The concentrations of these compounds ranged between 1 ng center dot L-1.
Article
Agricultural Engineering
Julio J. Conde, Sandra Gonzalez-Rodriguez, Xinyi Chen, Thelmo A. Lu-Chau, Gemma Eibes, Antonio Pizzi, Maria Teresa Moreira
Summary: Electrochemical oxidation of lignin is considered as a clean and reliable method to obtain valuable products from lignin. This study explores the possibility of using lignin residues from electrochemical treatments in the biorefinery context. The results show that hydroxylation of lignin by electrochemical oxidation leads to promising modifications for the formulation of bioadhesives. The electrochemically modified lignin successfully prepared NIPU bioadhesives with satisfactory mechanical properties for use in particleboard panels, providing a more environmentally friendly approach for lignin modification in the wood industry.
BIOMASS & BIOENERGY
(2023)
Article
Biotechnology & Applied Microbiology
Ana Arias, Gumersindo Feijoo, Maria Teresa Moreira
Summary: The Sustainable Development Goals defined by the United Nations provide a roadmap for achieving a sustainable society through a circular economy. The approach of biorefineries for processing renewable resources, such as olive pruning and eucalyptus residues, to obtain high-value bioactive compounds has been evaluated in this study. The results demonstrate the technological feasibility of utilizing waste fractions as a source of fermentable sugars and the potential for producing not only antimicrobial compounds but also lactic acid and energy. This research highlights the importance of rethinking the valorization of lignocellulosic waste beyond energy recovery for sustainable and circular outcomes.
FOOD AND BIOPRODUCTS PROCESSING
(2023)
Article
Green & Sustainable Science & Technology
Cristina Cambeses-Franco, Sara Gonzalez-Garcia, Mar Calvo-Malvar, Alfonso J. Benitez-Estevez, Rosaura Leis, Juan Sanchez-Castro, Francisco Gude, Gumersindo Feijoo, Maria Teresa Moreira
Summary: This research investigates the sustainability of 60 Galician recipes by analyzing their carbon footprint, energy return on investment ratio, and cost. The results indicate that the recipes can be classified into three groups based on the amount of animal-based products, with higher animal product content leading to increased costs and carbon footprint, but lower energy return on investment ratio. Conversely, plant-based recipes tend to reduce greenhouse gas emissions and improve cost competitiveness and energy efficiency indicators.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Carlos Botana, Emilio Fernandez, Gumersindo Feijoo
Summary: Carbon footprint has become crucial for developing strategies to tackle climate change. CEDEX has prepared a guide with a common methodology for calculating the carbon footprint of Spanish ports, which was tested in the Port of Vigo. The study found that the main carbon footprint loads in ports come from loading/unloading operations, and implementing this methodology can achieve a 55% reduction in greenhouse gas emissions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agricultural Engineering
Ander Castro-Fernandez, Anton Taboada-Santos, Sabela Balboa, Juan M. Lema
Summary: The study compared the potential to produce volatile fatty acids (VFA) from sewage sludge, both raw and thermally pre-treated. In batch mode, raw sludge obtained the highest maximum VFA yield at pH 8, while pre-treated sludge achieved a lower value. Continuous reactor operation showed that thermal hydrolysis pre-treatment (THP) did not significantly influence VFA yields. Microbial community analysis revealed that the phylum Fumicutes was predominant in both reactors and the enzymatic profiles involved in VFA production were similar regardless of the substrate fed.
BIORESOURCE TECHNOLOGY
(2023)
Article
Environmental Sciences
Julio J. Conde, Santiago Abelleira, Sofia Estevez, Jorge Gonzalez-Rodriguez, Gumersindo Feijoo, Maria Teresa Moreira
Summary: Advanced oxidation processes, such as Fenton reaction-based processes, using nanocatalysts, offer a promising alternative for removing persistent pollutants in wastewater. This study evaluates the environmental and economic performance of different heterogeneous Fenton-based processes using magnetic nanoparticles. The results show that these alternatives have different reaction conditions and degradation kinetics, impacting their treatment capability.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Javier Bravo-Venegas, Ines Prado-Acebo, Beatriz Gullon, Thelmo A. Lu-Chau, Gemma Eibes
Summary: Apple pomace (AP), a lignocellulosic residue, can be used to produce butanol by acetone-butanol-ethanol (ABE) fermentation. The prevention of acid crash occurrence in C. beijerinckii CECT 508 cultures was optimized by adjusting pH, CaCO3 concentration, and culture temperature. The optimal conditions of pH 7, 6.8 g/L CaCO3, and 30 degrees C resulted in a butanol production of 10.75 g/L. Additionally, the comparison between the supernatant of AP hydrolysate and the full hydrolysate indicated the possibility of eliminating the centrifugation step and achieving a zero-waste approach.
Article
Agricultural Engineering
Jan Struckmann Poulsen, Alba Trueba-Santiso, Juan M. Lema, Simon Gregersen Echers, Reinhard Wimmer, Jeppe Lund Nielsen
Summary: In this study, the biodegradability of PBAT monomers in thermophilic conditions was investigated using anaerobic digester sludge. 13C-labelled monomers and proteogenomics were used to track labelled carbon and identify the microorganisms involved in the process. Bacteroides, Ichthyobacterium, and Methanosarcina were found to be directly involved in the metabolization of at least one monomer.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Alexandra Del-Castillo-Llamosas, Gemma Eibes, Pedro Ferreira-Santos, Alba Perez-Perez, Pablo G. Del-Rio, Beatriz Gullon
Summary: This study demonstrates the valorization of avocado seed through microwave-assisted autohydrolysis in a green biorefinery concept. The optimal conditions for antioxidant phenolics/flavonoids and glucose + glucooligosaccharides in the resulting liquor were achieved at a temperature of 220 degrees C. The recovery of bioactive compounds and polysaccharides was achieved through extraction with ethyl acetate. Enzymatic hydrolysis of the solid phase and phenolic-free liquor produced glucose, reaching high yields.
BIORESOURCE TECHNOLOGY
(2023)
Article
Biochemical Research Methods
Sandra Gonzalez-Rodriguez, Alba Trueba-Santiso, Thelmo A. Lu-Chau, Maria Teresa Moreira, Gemma Eibes
Summary: This study focuses on the production of UPO by Agrocybe aegerita using by-products from bioethanol synthesis. Solid-state and submerged fermentations were compared, and the highest titers of UPO and laccase were achieved in submerged fermentation using vinasse as the nutrient source. Optimized UPO production of 331 U/L was obtained in 50% vinasse with a 14-day inoculum. These conditions were scaled-up to a 4 L reactor, resulting in a UPO activity of 265 U/L. Proteomic analysis revealed the expression of laccase, dye-decolorizing peroxidases, lectins, and proteins involved in reactive oxygen species production and control, in addition to UPO. Interestingly, the metabolism of complex sugars and nitrogen sources showed different activities at the beginning and end of submerged fermentation.
Article
Green & Sustainable Science & Technology
Cristina Cambeses-Franco, Humberto Jose Urdaneta, Gumersindo Feijoo, Maria Teresa Moreira, Sara Gonzalez-Garcia
Summary: The home confinement during the COVID-19 pandemic has resulted in changes in dietary patterns and lifestyle, leading to increased greenhouse gas emissions and water consumption. It is important for people to be aware of the significance of maintaining a healthy lifestyle and dietary pattern.
Article
Engineering, Environmental
Ana Arias, Carlos E. Costa, Gumersindo Feijoo, Maria Teresa Moreira, Lucilia Domingues
Summary: This research proposes a process for producing resveratrol from whey and eucalyptus residues, demonstrating its potential in terms of economics and environment. Future research should focus on increasing throughput and reducing energy requirements.
Article
Green & Sustainable Science & Technology
Daniel Granadero, Aida Garcia-Munoz, Renate Adam, Francisco Omil, Gumersindo Feijoo
Summary: This study conducted a Life Cycle Assessment and eco-efficiency analysis for a paint shop to compare the environmental sustainability of recuperative thermal oxidizers and regenerative thermal oxidizers. The results show that the installation of recuperative oxidizers is the most environmentally sustainable option, although it is more expensive.
CLEANER ENVIRONMENTAL SYSTEMS
(2023)
