Article
Chemistry, Analytical
Raman Umamaheswaran, Suryendu Dutta, Hukam Singh, Sumit Kumar
Summary: The study explores the utility of pyrolysis comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry as a technique for studying biomacromolecules in fossils, finding that it can provide more specific compound assignments and potentially be used to differentiate between different types of biomacromolecules. Through analyzing industry standards and fossil samples, the researchers verify the diagnostic efficacy of the technique and suggest potential markers for specific biomacromolecules.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Geochemistry & Geophysics
Raman Umamaheswaran, Suryendu Dutta, Sumit Kumar
Summary: In this paper, the authors compare the effectiveness of Py-GCxGC-TOFMS with conventional Py-GC-MS techniques in analyzing fossil organic materials. They find that Py-GCxGC-TOFMS offers higher compound separation, detection of more complex compounds, and is more suitable for samples with a larger variety of chemical structures and functional groups. This method provides better characterization of kerogen chemistry, aiding in assessments of hydrocarbon source properties and potentially opening up new avenues for interpretation in paleobiological studies.
ORGANIC GEOCHEMISTRY
(2021)
Article
Chemistry, Analytical
Meriem Gaida, Flavio A. Franchina, Pierre-Hugues Stefanuto, Jean-Francois Focant
Summary: In this study, a new modeling approach is described for predicting retention times in GC x GC-ToF-MS. The top-down approach separates the GC x GC separation into two independent 1D-GC separations. The predicted results correspond well with experimental values.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Chen Yan, Jiajia Zeng, Hao Li, Xian Pan, Jiangang Liu, Yun Wei
Summary: The chemical composition of Mentha haplocalyx volatile oils from different origins was studied using GC/MS and GC x GC/TOFMS. A total of 67 compounds were identified by GC/MS and 1956 compounds were identified by GC x GC/TOFMS from five Mentha haplocalyx samples. Significant differences in chemical composition were observed between Anhui and other regions, particularly in the abundance of Isopiperitone, Levomenthol, and Isomenthone. PCA analysis showed that GC x GC/TOFMS was better than GC/MS in identifying the authenticity of Mentha haplocalyx medicinal materials. Active compounds were enriched using the particle-assisted solvent flotation method for further research on food additives or pharmacological activities.
MICROCHEMICAL JOURNAL
(2023)
Article
Energy & Fuels
Xiaozhuang Zhuang, Ziyu Gan, Dengyu Chen, Kehui Cen, Yuping Ba, Dongxia Jia
Summary: The quality and yield of bio-oil can be improved by co-pyrolysis of heavy bio-oil and bamboo pretreated by light bio-oil leaching. Under the optimal co-pyrolysis conditions, the highest yield and heating value of bio-oil were obtained. Furthermore, the relative contents of phenols and hydrocarbons increased while that of acids decreased in the bio-oil produced by copyrolysis. Predictive models for bio-oil yield and properties were established, providing a foundation for the preparation and utilization of bio-oils.
Article
Agricultural Engineering
A. Dimitriadis, D. Liakos, U. Pfisterer, M. Moustaka-Gouni, D. Karonis, S. Bezergianni
Summary: This study found that hydrotreated pyrolysis oil can be miscible with different petroleum streams, and in some cases can even improve fuel characteristics, potentially allowing for its integration in oil refineries.
BIOMASS & BIOENERGY
(2021)
Article
Energy & Fuels
Kehui Cen, Xiaozhuang Zhuang, Ziyu Gan, Hong Zhang, Dengyu Chen
Summary: A new method of upgrading pyrolysis products through co-pyrolysis polygeneration and bio-oil recycling was proposed in this study. The results showed that the leaching pretreatment effectively removed alkali metals from pine wood, improving the quality and energy yield of bio-oil during subsequent pyrolysis. The co-pyrolysis of pine wood and heavy bio-oil had a synergistic effect, increasing the mass yield of biochar and pyrolysis gas while improving the contents of CO and C2+ gases in the gaseous products. This method provides a potential way to classify and utilize light and heavy components of bio-oil.
Article
Environmental Sciences
T. Prasantongkolmol, H. Thongkorn, A. Sunipasa, H. A. Do, C. Saeung, S. Jongpatiwut
Summary: Oil spills cause significant damage to marine and coastal ecosystems as well as local economies worldwide. This study investigates the use of Gas Chromatography with Sulfur Chemiluminescence Detection for oil fingerprinting by analyzing the distribution of sulfur compounds in fresh and weathered crude oils. The results show that the distribution of sulfur compounds is unique for each type of crude oil, and the heavy sulfur compounds remain unchanged after weathering. Therefore, the GC-SCD technique can be used to support the identification of oil spills.
MARINE POLLUTION BULLETIN
(2023)
Article
Chemistry, Applied
Yamin Yu, Shuang Chen, Yao Nie, Yan Xu
Summary: A new method for monitoring oral aroma compounds of Baijiu has been developed, which shows good performance in detecting various aroma compounds and providing good representations of Baijiu's aroma profiles.
Article
Multidisciplinary Sciences
Asit Ray, Ayushman Gadnayak, Sudipta Jena, Ambika Sahoo, Jeetendranath Patnaik, Pratap Chandra Panda, Sanghamitra Nayak
Summary: The study characterized the essential oil of Hedychium spicatum and found that it exhibited selective cytotoxic activity against prostate cancer cells. The oil induced apoptosis in the cancer cells and could potentially be used as a new treatment for prostate cancer.
Article
Chemistry, Analytical
Marco Beccaria, Marco Piparo, Yun Zou, Pierre-Hugues Stefanuto, Giorgia Purcaro, Anna Luiza Mendes Siqueira, Adrien Maniquet, Pierre Giusti, Jean-Francois Focant
Summary: This study focuses on the pyrolysis oils of plastic waste in chemical recycling, and a detailed investigation is conducted using multidimensional gas chromatography. High-resolution mass spectrometry is employed to evaluate isomeric species, and the injection method is optimized to introduce a wide range of carbon number compounds.
Article
Energy & Fuels
Michael D. Kass, Christopher J. Janke, Vladislav V. Lobodin, Wim Bras, James R. Keiser, Dino Sulejmanovic, Jiheon Jun
Summary: The compatibility of fast-pyrolysis bio-oil with elastomer and plastic materials commonly used in fuel storage and delivery systems was studied. Elastomers showed significant swelling in the bio-oil, especially fluorocarbons and acrylonitrile rubbers. In contrast, plastic materials were less affected by the bio-oil due to their denser and more rigid molecular structures.
Article
Biochemistry & Molecular Biology
Martyna N. Wieczorek, Piotr Mariusz Pieczywek, Justyna Cybulska, Artur Zdunek, Henryk H. Jelen
Summary: The storage and sample preparation methods have a significant impact on the profile of metabolites in plants, including changes in concentration, tissue structure, and enzyme activity.
Article
Thermodynamics
Mohamed Ali Wahab, Katharina Kebelmann, Bernhard Schartel, Gareth Griffiths
Summary: This study explored anaerobic digestion and dark fermentation as green pre-treatments for seaweed biomass prior to pyrolysis. The biological pre-treatments significantly affected the composition and structure of the seaweeds, leading to changes in thermal degradation and volatile profiles during pyrolysis, with potential for generating biooil similar to petroleum-based composition.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Review
Energy & Fuels
Manigandan Sekar, Thangavel Mathimani, Avinash Alagumalai, Nguyen Thuy Lan Chi, Pham Anh Duc, Shashi Kant Bhatia, Kathirvel Brindhadevi, Arivalagan Pugazhendhi
Summary: Algae have become a viable feedstock for biofuel production due to their environmentally friendly, sustainable, and renewable nature. This review examines various pyrolysis methods used to convert algal biomass into biochar and bio-oil, highlighting the challenges associated with each method.
Article
Environmental Sciences
Lucilene Finoto Viana, Fabio Kummrow, Claudia Andrea Lima Cardoso, Nathalya Alice de Lima, Bruno do Amaral Crispim, Alexeia Barufatti, Alexandro Cezar Florentino
Summary: High concentrations of metals have been found in the Araguari River lower section, posing potential risks to human consumption through bioaccumulation in fish. Some fish species showed concentrations of lead and cadmium exceeding the Brazilian limits, indicating health risks. The consumption of all fish species, particularly detritivorous ones, presents risks when considering the mixture of metals. The study highlights the importance of establishing an environmental monitoring program and educating the local population about safe fish consumption and preparation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Nutrition & Dietetics
Kaue Tognolli, Victoria Silva, Celso Pereira Batista Sousa-Filho, Claudia Andrea Lima Cardoso, Renata Gorjao, Rosemari Otton
Summary: This study aims to investigate the immune cell population in the subcutaneous and epididymal white adipose tissue (WAT) of obese mice, as well as the effects of green tea. The results suggest that a high-fat diet and thermoneutrality can induce chronic inflammation and insulin resistance. However, green tea can prevent weight gain, inflammation, and tissue fibrosis, while maintaining a similar immune cell profile to that of lean mice.
EUROPEAN JOURNAL OF NUTRITION
(2023)
Article
Toxicology
Suyane da Silva Moreira, Beatriz de Matos Manoel, Joao Pedro Gaspar Inacio, Carolina Gabrielli de Souza, Ana Carolina Casali Reis, Barbara Campos Jorge, Ariana Musa de Aquino, Wellerson Rodrigo Scarano, Claudia Andrea Lima Cardoso, Arielle Cristina Arena
Summary: Exposure to venlafaxine during lactation can lead to changes in play behavior, sperm quality, and hypothalamic androgen receptor content in male offspring. This study highlights the importance of evaluating the potential effects of antidepressant use during lactation.
JOURNAL OF APPLIED TOXICOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Simone Y. Fernandes, Debora de Araujo, Montcharles S. Pontes, Jaqueline S. Santos, Claudia A. L. Cardoso, Euclesio Simionatto, Marco A. U. Martines, Debora R. Antunes, Renato Grillo, Gilberto J. Arruda, Etenaldo F. Santiago
Summary: This study evaluates the bioherbicidal potential of Schinus terebinthifolia fruit essential oil emulsions on germination parameters of Lactuca sativa and Urochloa brizantha seeds. The results indicate that the emulsions have nanoemulsion particle sizes smaller than 735 nm with spherical and cuboid shapes. The major compounds present in the essential oil are alpha-pinene, germacrene-D, and beta-pinene. Urochloa brizantha seed germination is reduced at doses >2 mg mL-1 and completely inhibited at 32 mg mL-1, while Lactuca sativa germination is dose-dependent without total inhibition. Decrease in photosynthetic pigments, flavonoids, phenolics, and total tannins, as well as alteration in enzyme activity, is observed.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2023)
Article
Plant Sciences
Flavio Henrique Souza de Araujo, Claudio Rodrigo Nogueira, Virginia Demarchi Kappel Trichez, Zaira da Rosa Guterres, Luciano da Silva Pinto, Suzana Queiroz Velter, Guilherme Antonio Mantovani Ferreira, Marcos Batista Machado, Kidney de Oliveira Gomes Neves, Maria do Carmo Vieira, Claudia Andrea Lima Cardoso, Silvia Cristina Heredia-Vieira, Kelly Mari Pires de Oliveira, Raul Cremonize Piva, Silvia Aparecida Oesterreich
Summary: The infusion of Aristolochia triangularis leaves showed anti-hyperglycemic activity and contained lignoids, alkaloids, and glycosylated flavonoids with known antidiabetic effects. This supports the traditional use of this herbal drink in Brazilian traditional medicine for diabetes management.
JOURNAL OF ETHNOPHARMACOLOGY
(2023)
Article
Plant Sciences
Laura Priscila Toledo Bernal, Maicon Matos Leitao, Joyce Alencar Santos Radai, Claudia Andrea Lima Cardoso, Joyce dos Santos Lencina, Thiago Leite Fraga, Arielle Cristina Arena, Saulo Euclides Silva-Filho, Candida Aparecida Leite Kassuya
Summary: This study investigated the analgesic and anti-inflammatory properties of the ethanolic extract from Serjania erecta leaves (EESE) in mice. The results showed that EESE reduced pain response, inhibited leukocyte migration, and decreased neutrophil chemotaxis. Furthermore, EESE exhibited no cytotoxicity in vitro. These findings support the traditional use of S. erecta as a natural analgesic agent.
JOURNAL OF ETHNOPHARMACOLOGY
(2023)
Article
Chemistry, Analytical
Fabio Xavier Antunes Sampaioa, Madson Moreira Nascimento, Valdiria Almeida de Oliveira, Sabrina Teixeira Martinez, Jailson Bittencourt de Andrade, Maria Elisabete Machado
Summary: This study successfully applied a miniaturized solid-liquid extraction method combined with dispersive micro-solid-phase extraction to determine the concentration of fourteen polycyclic aromatic sulfur heterocycles (PASH) in the ascidian Phallusia nigra. The results showed that the method was effective and ten PASHs were quantified, with the highest concentrations found in the branchial basket.
MICROCHEMICAL JOURNAL
(2023)
Review
Geochemistry & Geophysics
Lua Morena Leoncio de Oliveira, Diego Nery do Amaral, Kalil Lopes de Amorim Ferreira, Carolina Santiago Souza, Gisele Mara Hadlich, Maria Elisabete Machado
Summary: Polycyclic aromatic sulfur heterocycles (PASHs), such as benzothiophenes (BTs), dibenzothiophenes (DBTs), and benzonaphthothiophenes (BNTs), are common in crude oil and source rocks and are widely studied as molecular markers (S-markers) in organic geochemistry. These S-markers are highly stable and degradation-resistant, making them valuable for understanding thermal evolution, depositional environment, maturity, petroleum migration, and biodegradation. The presence of specific DBT-related markers in oils can indicate maturity and susceptibility to biodegradation. This study provides the first overview of PASHs used as geochemical markers and discusses various analytical techniques for their quantification and characterization.
ORGANIC GEOCHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Isamara Carvalho Ferreira, Raissa Cristina Darroz Correa, Sarah Lam Orue, Daniel Ferreira Leite, Paola dos Santos da Rocha, Claudia Andrea Lima Cardoso, Rosilda Mara Mussury, Patricia Vit, Kely de Picoli Souza, Edson Lucas dos Santos, Jaqueline Ferreira Campos
Summary: This study investigated the chemical composition and antioxidant activity of cerumen produced by stingless bees. The cerumen extracts exhibited antioxidant activity by capturing free radicals and reducing oxidative stress in human erythrocytes and nematodes. The results suggest that these cerumen extracts may have potential therapeutic effects against oxidative stress and associated diseases.
Article
Plant Sciences
Marco Aurelio Carmona Augusco, Daniela Abram Sarri, Juliane Farinelli Panontin, Maria Angelica Melo Rodrigues, Rachel de Moura Nunes Fernandes, Juliana Fonseca Moreira da Silva, Claudia Andrea Lima Cardoso, Magale Karine Diel Rambo, Elisandra Scapin
Summary: The study of phytotherapy in dentistry is important due to the lack of research on the treatment of oral pathologies. This research analyzed the chemical composition of extracts from Couroupita guianensis leaves and evaluated their toxicity and antimicrobial properties. The extracts showed potential for controlling microorganisms in the oral microbiota.
Article
Chemistry, Multidisciplinary
Thiago Luis Aguayo de Castro, Larissa Paula Souza, Sidnei Eduardo Lima-Junior, Claudia Andrea Lima Cardoso
Summary: The study aimed to analyze the extraction yield and photoprotective effect of different extracts of Campomanesia adamantium leaves obtained with different concentrations of ethanol and water. The results showed that a 2% (m/v) extraction concentration had significantly higher yields than 5% (m/v). Ethanol concentrations between 75 and 100% were ideal for obtaining extracts rich in phenolic compounds with antioxidant and photoprotective potential. Gallic acid, rutin, and 5,7-dihydroxy-6-methylflavanone were identified in the extracts, and the extracts exhibited good UV absorption and potential photoprotection in the UVA region.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Environmental Sciences
Pedro Victor Bomfim Bahia, Madson Moreira Nascimento, Gisele Olimpio da Rocha, Jailson Bittencourt de Andrade, Maria Elisabete Machado
Summary: A green microscale solid-liquid extraction method was developed and applied for the analysis of 23 polycyclic aromatic sulfur heterocycles (PASHs) in PM2.5 samples. The optimal extraction conditions were determined through experimental design and successfully applied to samples collected from different time intervals and sulfur contents in diesel. The reduction of sulfur content in diesel showed a significant impact on the concentration of PASHs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Thiago Luis Aguayo de Castro, Joao Victor de Andrade dos Santos, Kelly Mari Pires de Oliveira, Claudia Andrea Lima Cardoso
Summary: This study analyzed the chemical composition and the antioxidant, antimicrobial, and photoprotective potential of ethanolic extracts from the peels of two species of the Campomanesia genus. The results showed that the peel extracts exhibited high antimicrobial activity, with CG extract showing higher levels. In terms of antioxidant activity, CG also had higher levels. These extracts have potential for the formulation of cosmetics and foods.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Entomology
Aylson Dailson Medeiros de Moura Eulalio, Michele Castro de Paula-Silva, Kamylla Balbuena Michelutti, Fabiane Cassari de Oliveira, Andrelle Caroline de Souza Brum, Sidnei Eduardo Lima-Junior, Claudia Andrea Lima Cardoso, William Fernando Antonialli-Junior
Summary: The entomofauna associated with decaying cadavers can be affected by toxic compounds, altering their developmental cycle and occurrence. This study aimed to investigate the potential alteration of insect visitation on carcasses contaminated with insecticide. The experiment was conducted in a sugarcane plantation, comparing contaminated carcasses to uncontaminated ones. Results showed that contamination by insecticide altered the decomposition time and phase, as well as the abundance and activity of flies and beetles, which could impact the data used by forensic experts.
REVISTA BRASILEIRA DE ENTOMOLOGIA
(2023)
Article
Environmental Sciences
Michele Castro de Paula, Nathan Rodrigues Batista, Dayana Alves da Silva Cunha, Poliana Galvao dos Santos, William Fernando Antonialli-Junior, Claudia Andrea Lima Cardoso, Euclesio Simionatto
Summary: Agricultural production and the use of insecticides pose risks to the biodiversity and ecosystem services provided by bees. This study focused on the effects of the insecticide thiamethoxam on the stingless bee Plebeia catamarcensis. The study found that thiamethoxam can have lethal and sublethal effects on the bees, impacting their mobility and potentially leading to population decline.
ENVIRONMENTAL POLLUTION
(2023)
Article
Green & Sustainable Science & Technology
Cameron Bracken, Nathalie Voisin, Casey D. Burleyson, Allison M. Campbell, Z. Jason Hou, Daniel Broman
Summary: This study presents a methodology and dataset for examining compound wind and solar energy droughts, as well as the first standardized benchmark of energy droughts across the Continental United States (CONUS) for a 2020 infrastructure. The results show that compound wind and solar droughts have distinct spatial and temporal patterns across the CONUS, and the characteristics of energy droughts are regional. The study also finds that compound high load events occur more often during compound wind and solar droughts than expected.
Article
Green & Sustainable Science & Technology
Ning Zhang, Yanghao Yu, Jiawei Wu, Ershun Du, Shuming Zhang, Jinyu Xiao
Summary: This paper provides insights into the optimal configuration of CSP plants with different penetrations of wind power by proposing an unconstrained optimization model. The results suggest that large solar multiples and TES are preferred in order to maximize profit, especially when combined with high penetrations of wind and photovoltaic plants. Additionally, the study demonstrates the economy and feasibility of installing electric heaters (EH) in CSP plants, which show a linear correlation with the penetration of variable energy resources.
Article
Green & Sustainable Science & Technology
M. Szubel, K. Papis-Fraczek, S. Podlasek
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Green & Sustainable Science & Technology
Yang Liu, Yonglan Xi, Xiaomei Ye, Yingpeng Zhang, Chengcheng Wang, Zhaoyan Jia, Chunhui Cao, Ting Han, Jing Du, Xiangping Kong, Zhongbing Chen
Summary: This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid anaerobic digestion and increase methane production. The results showed that adding NMCs with 15% PNPs can lower the concentrations of volatile fatty acids and ammonia nitrogen, and increase methane yield.
Article
Green & Sustainable Science & Technology
Zhong Ge, Xiaodong Wang, Jian Li, Jian Xu, Jianbin Xie, Zhiyong Xie, Ruiqu Ma
Summary: This study evaluates the thermodynamic, exergy, and economic performance of a double-stage organic flash cycle (DOFC) using ten eco-friendly hydrofluoroolefins. The influences of key parameters on performance are analyzed, and the advantages of DOFC over single-stage type are quantified.
Article
Green & Sustainable Science & Technology
Nicolas Kirchner-Bossi, Fernando Porte-Agel
Summary: This study investigates the optimization of power density in wind farms and its sensitivity to the available area size. A novel genetic algorithm (PDGA) is introduced to optimize power density and turbine layout. The results show that the PDGA-driven solutions significantly reduce the levelized cost of energy (LCOE) compared to the default layout, and exhibit a convex relationship between area and LCOE or power density.
Article
Green & Sustainable Science & Technology
Chunxiao Zhang, Dongdong Li, Lin Wang, Qingpo Yang, Yutao Guo, Wei Zhang, Chao Shen, Jihong Pu
Summary: In this study, a novel reversible liquid-filled energy-saving window that effectively regulates indoor solar radiation heat gain is proposed. Experimental results show that this window can effectively reduce indoor temperature during both summer and winter seasons, while having minimal impact on indoor illuminance.
Article
Green & Sustainable Science & Technology
Alessandro L. Aguiar, Martinho Marta-Almeida, Mauro Cirano, Janini Pereira, Leticia Cotrim da Cunha
Summary: This study analyzed the Brazilian Equatorial Shelf using a high-resolution ocean model and found significant tidal variations in the area. Several hypothetical barrages were proposed with higher annual power generation than existing barrages. The study also evaluated the installation effort of these barrages.
Article
Green & Sustainable Science & Technology
Francesco Superchi, Nathan Giovannini, Antonis Moustakis, George Pechlivanoglou, Alessandro Bianchini
Summary: This study focuses on the optimization of a hybrid power station on the Tilos island in Greece, aiming to increase energy export and revenue by optimizing energy fluxes. Different scenarios are proposed to examine the impact of different agreements with the grid operator on the optimal solution.
Article
Green & Sustainable Science & Technology
Peimaneh Shirazi, Amirmohammad Behzadi, Pouria Ahmadi, Sasan Sadrizadeh
Summary: This research presents two novel energy production/storage/usage systems to reduce energy consumption and environmental effects in buildings. A biomass-fired model and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump were designed and assessed. The results indicate that the solar-based system has an acceptable energy cost and the PVT-based system with a heat pump is environmentally superior. The biomass-fired system shows excellent efficiency.
Article
Green & Sustainable Science & Technology
Zihao Qi, Yingling Cai, Yunxiang Cui
Summary: This study aims to investigate the operational characteristics of the solar-ground source heat pump system (SGSHPS) in Shanghai under different operation modes. It concludes that tandem operation mode 1 is the optimal mode for winter operation in terms of energy efficiency.
Article
Green & Sustainable Science & Technology
L. Bartolucci, S. Cordiner, A. Di Carlo, A. Gallifuoco, P. Mele, V. Mulone
Summary: Spent coffee grounds are a valuable biogenic waste that can be used as a source of biofuels and valuable chemicals through pyrolysis and solvent extraction processes. The study found that heavy organic bio-oil derived from coffee grounds can be used as a carbon-rich biofuel, while solvent extraction can extract xantines and p-benzoquinone, which are important chemicals for various industries. The results highlight the promising potential of solvent extraction in improving the economic viability of coffee grounds pyrolysis-based biorefineries.
Article
Green & Sustainable Science & Technology
Luiza de Queiroz Correa, Diego Bagnis, Pedro Rabelo Melo Franco, Esly Ferreira da Costa Junior, Andrea Oliveira Souza da Costa
Summary: Building-integrated photovoltaics, especially organic solar technology, are important for reducing greenhouse gas emissions in the building sector. This study analyzed the performance of organic panels laminated in glass in a vertical installation in Latin America. Results showed that glass lamination and vertical orientation preserved the panels' performance and led to higher energy generation in winter.
Article
Green & Sustainable Science & Technology
Zhipei Hu, Shuo Jiang, Zhigao Sun, Jun Li
Summary: This study proposes innovative fin arrangements to enhance the thermal performance of latent heat storage units. Through optimization of fin distribution and prediction of transient melting behaviors, it is found that fin structures significantly influence heat transfer characteristics and melting behaviors.
