Article
Food Science & Technology
Junfang Wang, Rui Zhang, Jinzhu Jiang, Wei Duan, Peige Fan, Shaohua Li, Lijun Wang
Summary: An orthogonal L(16)4(3) x 2(2) test design was used to optimize the extraction of flavan-3-ols in grape seeds. The optimized HPLC method separated and identified fourteen flavan-3-ols, showing that the new wine grape - Beihong, had higher flavan-3-ols content and polymerization compared to classic wine grapes like Cabernet Sauvignon, Merlot, Semillon, and Riesling.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Chemistry, Applied
Xinyu Wang, Xiaoyan Liu, Naiwen Shi, Zhuanyuan Zhang, Yiming Chen, Mingyan Yan, Yinping Li
Summary: In this study, the maximum extracted efficiency of okra polyphenols was determined using response surface methodology, and 27 compounds were identified in okra polyphenols using HPLC-ESI-QTOF-MS/MS. Additionally, okra polyphenols exhibited strong antioxidant activity and alleviated oxidative damage.
Article
Biochemistry & Molecular Biology
Joanna Kuc, Maciej Thomas, Iwona Grochowalska, Rafal Kulczyk, Gabriela Mikosz, Fabian Mrozek, Dagmara Janik, Justyna Korta, Karolina Cwynar
Summary: This research investigated the removal of Total Organic Carbon (TOC) and various pharmaceuticals from surface water using coagulation. The study found that the application of Design of Experiments (DOE) and Response Surface Methodology (RSM) with aluminum chlorohydrate (ACH) as a coagulant was effective in reducing the concentrations of the studied pharmaceuticals. The findings suggest that ACH can be used as an optional reagent for removing pharmaceutical contaminants from water.
Article
Environmental Sciences
Daniel Malnes, Lutz Ahrens, Stephan Kohler, Malin Forsberg, Oksana Golovko
Summary: This study assessed the occurrence and mass flows of contaminants of emerging concern (CECs) in Sweden's main lakes and associated rivers. The study found that the CEC concentration in river water was generally higher than in lake water. Seasonal variations of CECs were observed at urban lake sites. Further investigations are needed to understand the impact of CECs on the ecosystem and human health, as these lakes are used as drinking water reservoirs.
Article
Biochemistry & Molecular Biology
Yasir Iqbal, Eric N. Ponnampalam, Hafiz A. R. Suleria, Jeremy J. Cottrell, Frank R. Dunshea
Summary: The study qualitatively and quantitatively analyzed polyphenols in chicory and lucerne, finding that they possess high antioxidant potential mainly due to polyphenolic compounds. Both chicory and lucerne are rich in polyphenolic compounds, making them suitable natural antioxidants for use in animal feeds, human foods, and pharmaceutical formulations.
Article
Environmental Sciences
Nikita Bakanov, Carolina Honert, Lisa Eichler, Gerlind U. C. Lehmann, Ralf Schulz, Carsten A. Bruehl
Summary: A simple acetonitrile-based extraction method using HPLC-ESI-MS/MS was developed for the determination of 98 current-use pesticides in soil and herbaceous vegetation. The method exhibited good accuracy and precision, with percentage recoveries ranging from 71-125% (soil) and 70-117% (vegetation), and relative standard deviations of 1-14% (soil) and 1-13% (vegetation). Matrix-matched calibration curves showed excellent linearity (R-2 > 0.99). The method was successfully applied to agricultural sites in Germany, where 44 of the 98 pesticides were detected, indicating a high qualitative load compared to EU arable soils.
Article
Chemistry, Applied
Christof B. Steingass, Jonas Burkhardt, Vicky Baeumer, Keshav Kumar, Heiko Mibus-Schoppe, Jana Zinkernagel, Patricia Esquivel, Victor M. Jimenez, Ralf Schweiggert
Summary: Anthocyanins were characterized in red cabbage, sweet potato, and Tradescantia pallida leaves. Various non-, mono-, and diacylated cyanidins were identified in red cabbage. Sweet potato leaves contained mono- and diacylated cyanidin- and peonidin glycosides, while T. pallida leaves mainly contained tetra-acylated anthocyanin tradescantin. The thermal stability of red cabbage and purple sweet potato extracts surpassed that of a commercial food dye, but still fell short compared to the stability of Tradescantia extract.
Article
Environmental Sciences
Shaojing Sun, Fan Meng, Hong Qi
Summary: An online solid-phase extraction (SPE) liquid chromatography tandem mass spectrometry method (HPLC-MS/MS) combined with accelerated solvent extraction (ASE) was developed for simultaneous determination of 14 pharmaceuticals in sludge. Ultrapure water with no additives was used as the loading solvent in the online SPE procedures. Low molecular weight targets such as atenolol were difficult to retain on SPE column after acetone was added to the washing solvent. By adding 0.2% formic acid to the mobile phase, the response signal of analytes can be greatly improved. Under the optimized conditions, the recoveries of all the analytes ranged between 75.1 and 112%. The limit of detections ranged from 1.8 to 7.9 ug/kg. The precision of analytical data was determined with relative standard deviation (RSD)<= 4.87%. This method was successfully applied to determine the concentration of pharmaceuticals in sludge.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Clara Miguez, Angeles Cancela, Xana Alvarez, Angel Sanchez
Summary: Phenolic compounds extracted from Tradescantia fluminensis have potential applications in pharmaceutical and food preservation due to their high antioxidant potential. However, the current management of bio-waste resulting from invasive species control actions is not fully effective.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Food Science & Technology
Larissa Marina Pereira Silva, Maria Raquel Cavalcanti Inacio, Gualter Guenter Costa da Silva, Jucier Magson de Souza e Silva, Jefferson Romaryo Duarte da Luz, Maria das Gracas Almeida, Edgar Perin Moraes, Debora Esposito, Leandro De Santis Ferreira, Silvana Maria Zucolotto
Summary: Moringa oleifera leaves are rich in flavonoids, and the highest flavonoid content can be obtained through ultrasound-assisted extraction. The optimal cultivation condition is using mineral soil fertilizer in the drought season, with the optimized extraction conditions being 80% ethanol and 13.4 minutes extraction time. The extract is safe and significantly reduces inflammation, with major compounds derived from apigenin, quercetin, and kaempferol glycosides.
Article
Biochemistry & Molecular Biology
Lucia Lopez-Salas, Isabel Borras-Linares, Rosa Quirantes-Pine, Tatiana Emanuelli, Antonio Segura-Carretero, Jesus Lozano-Sanchez
Summary: In this study, advanced extraction and analytical techniques were used to evaluate the phytochemical composition of green asparagus from a specific geographic area in Spain. The results demonstrated the potential of advanced pressurized liquid extraction techniques for the recovery of bioactive compounds from asparagus. Additionally, major phenolic compounds were identified and quantified through analytical characterization. This novel methodology provides a better understanding of the bioactive composition of this widely consumed food.
Article
Chemistry, Applied
Diana Pinto, Elsa F. Vieira, Andreia F. Peixoto, Cristina Freire, Vitor Freitas, Paulo Costa, Cristina Delerue-Matos, Francisca Rodrigues
Summary: This study evaluated the optimal Subcritical Water Extraction conditions for antioxidants and polyphenols from chestnut shells using Response Surface Methodology. The results showed that the best extraction conditions were 30 min/220 degrees C, with excellent scavenging efficiencies against various radicals and no toxicity on intestinal cells.
Article
Food Science & Technology
Maria del Carmen Razola-Diaz, Ana Maria Gomez-Caravaca, Eduardo J. Guerra-Hernandez, Belen Garcia-Villanova, Vito Verardo
Summary: This study optimized the extraction of phenolic compounds from tiger nut by-products using ultrasound technology. The phenolic profile of two tiger nut by-products, one with Protected Designation of Origin (PDO) and another without (n-PDO), were compared. The PDO by-product was found to have higher amounts of phenolic acids and other polyphenols, as well as greater antioxidant activity, while the n-PDO by-product had higher levels of phenol precursors.
Article
Chemistry, Analytical
Tamara Fernandez-Bautista, Beatriz Gomez-Gomez, Roberto Palacin-Garcia, Emma Gracia-Lor, Teresa Perez-Corona, Yolanda Madrid
Summary: The distribution of Se and Hg in different protein fractions extracted from muscle tissues of tuna, swordfish, and salmon (wild vs. farmed) was investigated for the first time. The study revealed that Se and Hg were associated with proteins of specific molecular weights, with differences observed between farmed and wild salmon. Additionally, Se speciation studies showed SeMeSeCys as the primary selenium species found in the proteins analyzed.
Article
Chemistry, Physical
Hang Li, Qingsheng Zhao, Senlin Chang, Liwei Wang, Bing Zhao
Summary: Industrial hemp is an important economic crop and its leaf extract, known as cannabidiol full-spectrum oil (CFSO), has significant application potential. This study aimed to explore the phytochemical composition and composition-activity relationship of CFSO. The results revealed the presence of 12 cannabinoids, with CBD being the most abundant component. Additionally, the ethanol concentration in the extracts influenced their total phenolic content, total flavonoid content, cytotoxicity, antioxidant activity, and antibacterial activity.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Analytical
Aline G. O. Paranhos, Andressa R. Pereira, Isadora C. da Fonseca, Ananda L. Sanson, Robson J. C. F. Afonso, Sergio F. Aquino
Summary: This study discusses the use of antibiotics as growth promoters in Brazilian poultry production to meet the demand for chicken meat. The development of a cost-effective extraction method for the analysis of tylosin in poultry litter samples was successful, with the method detecting average concentrations of the substance in different stages of poultry production.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
Article
Environmental Sciences
Rhuana Valdetario Medice, Robson Jose de Cassia Franco Afonso, Marys Lene Braga Almeida, Sergio Francisco de Aquino, Marcelo Libanio
Summary: This study evaluated the antimicrobial activity and toxicity of the chlorination by-products of norfloxacin on a bench scale. Results showed that the by-products lost antibacterial activity against E.coli and exhibited higher toxicity than pure norfloxacin in acute toxicity tests using Artemia salina microcrustaceans.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Energy & Fuels
Diego Roberto Sousa Lima, Aline Gomes de Oliveira Paranhos, Oscar Fernando Herrera Adarme, Bruno Eduardo Lobo Baeta, Leandro Vinicius Alves Gurgel, Alexandre Soares dos Santos, Silvana de Queiroz Silva, Sergio Francisco de Aquino
Summary: This study evaluated the energy potential of biogas production from anaerobic digestion of sugarcane bagasse residues pre-treated with ozone for 2G ethanol production. It was found that mild ozonation conditions maximized ethanol production, with surplus energy generation covering the energy costs involved in the process. Combination of ozone treatment and alkaline extraction under suitable conditions also increased ethanol production and process sustainability.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Environmental Sciences
Luiza C. G. M. Teixeira, Juliane Ribeiro das Chaves, Neyson Mendonca, Ananda L. Sanson, Mariana C. P. Alves, Robson J. C. F. Afonso, Sergio F. Aquino
Summary: The study found a significant presence of drugs and endocrine disrupters in water sources in Bolonha water complex in Belem, Brazil, attributed to the discharge of domestic sewage, highlighting the anthropic influence on the water bodies. Although some contaminants were found in treated water, the estimated risk of human exposure was low.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Article
Water Resources
Juliane Ribeiro das Chaves, Luiza Carla Girard Mendes Teixeira, Neyson Martins Mendonca, Sergio Francisco de Aquino
Summary: The study investigated the occurrence of drugs in water supply and water for human consumption in Belem city, Northern Brazil. The results showed higher drug concentrations in raw water compared to treated water, and the full cycle treatment used in Bolonha filtered water chamber and treated water reservoir was not efficient for the complete removal of the compounds investigated.
ENGENHARIA SANITARIA E AMBIENTAL
(2021)
Article
Environmental Sciences
Sergio Francisco de Aquino, Emanuel Manfred Freire Brandt, Sue Ellen Costa Bottrel, Fernanda Bento Rosa Gomes, Silvana de Queiroz Silva
Summary: This study aimed to establish a priority list of P&EDC in Brazil by investigating their occurrence in water sources and estimating the risks of population exposure. The analysis highlighted high risks for certain compounds, necessitating enhanced monitoring in Brazil, while also confirming the presence of antimicrobial resistance agents in water sources across the country.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Biotechnology & Applied Microbiology
Aline Gomes de Oliveira Paranhos, Andressa Rezende Pereira, Yasmim Arantes da Fonseca, Silvana de Queiroz Silva, Sergio Francisco de Aquino
Summary: This study investigated the degradation kinetics of tylosin and the microorganisms involved in its anaerobic digestion. The results showed that increasing tylosin concentration in poultry litter had a stimulating effect on methane production. Metagenomic analyses suggested a syntrophic action between Methanobacterium archaea and bacteria such as Clostridium and Flexilinea, which played a crucial role in tylosin degradation.
Article
Environmental Sciences
Mariana C. P. Alves, Ananda L. Sanson, Amanda Quaresma, Mylena G. Freitas, Robson J. C. F. Afonso, Sergio F. Aquino
Summary: This study evaluates the occurrence and removal of 24 compounds in water treatment plants in Brazil. The results show variations in the concentrations of these compounds in different seasons and treatment steps. The assessment of margin of exposure indicates potential risks associated with some compounds in treated water samples.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Engineering, Environmental
Paula Fontoura Procopio, Sergio Francisco de Aquino, Oscar Fernando Herrera Adarme
Summary: This study evaluated an activated sludge system as a post-treatment step for anaerobic effluents from the co-digestion of sugarcane vinasse and hemicelluloses hydrolysate. The results showed that activated sludge could effectively treat the anaerobic effluents and provide a stable organic load in the final effluent.
WATER ENVIRONMENT RESEARCH
(2022)
Article
Environmental Sciences
Andressa Rezende Pereira, Nathalia Vercelli de Assis, Aline Gomes de Oliveira Paranhos, Diego Roberto Sousa Lima, Bruno Eduardo Lobo Baeta, Sergio Francisco de Aquino, Silvana de Queiroz Silva
Summary: The addition of fresh manure and ruminal fluid to anaerobic sludge can improve methane production. Next Generation Sequencing analysis showed changes in microbial community in the inoculum. The inoculum with fresh bovine manure had the highest methane production, followed by the inoculum with ruminal fluid.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Raissa Machado Maluf Martins, Yasmim Arantes da Fonseca, Marina Victal Faria, Sergio Francisco de Aquino, Oscar Fernando Herrera Adarme, Bruno Eduardo Lobo Baeta
Summary: In this study, anaerobic co-digestion of cassava wastewater, cassava bagasse, and dairy manure was investigated to produce biogas. A mixture experimental design was used to determine the optimal proportion of each substrate. The results showed that the highest methane yields were obtained with 100% cassava wastewater and a mixture of 66.7% dairy manure, 16.7% cassava bagasse, and 16.7% cassava wastewater. High proportions of cassava bagasse led to low pH and high volatile fatty acid production. An energy balance calculation showed that anaerobic co-digestion could replace 22.5% of the energy demanded by the cassava processing industry.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Marine & Freshwater Biology
Emilia Marques Brovini, Gabrielle Rabelo Quadra, Jose R. Paranaiba, Luana Carvalho, Renata de Oliveira Pereira, Sergio Fracisco de Aquino
Summary: Pesticide contamination in water resources is a global threat, especially when considering mixture effects. A study in Brazil found that 3.2% of cities had pesticide occurrence above the limit of detection or quantification in surface freshwaters. The number increased to 117 cities when considering pesticide mixtures. The study highlights the importance of considering mixture effects in environmental risk assessment and the need for revising national environmental legislation to protect aquatic ecosystems in Brazil.
AQUATIC TOXICOLOGY
(2023)
Article
Engineering, Environmental
Erick Centeno Mora, Aline Gomes de Oliveira Paranhos, Sergio Francisco de Aquino, Carlos Augusto de Lemos Chernicharo
Summary: This study evaluated a novel configuration, using pressurised dynamic membrane modules (PDMMs), for treating anaerobic effluent from sewage. The results showed that the dense membrane had a more stable performance and could effectively remove pollutants such as methane and sulphide, while the microporous membrane suffered from wetting. Additionally, automated and chemical cleaning methods were effective in controlling fouling and maintaining membrane performance.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Aline Gomes de Oliveira Paranhos, Andressa Rezende Pereira, Leticia Dias Nunes Coelho, Silvana de Queiroz Silva, Sergio Francisco De Aquino
Summary: This study investigated the use of hydrothermal pretreatment (HPT) and anaerobic digestion (AD) alone or combined to produce methane and remove contaminants from poultry litter. The results showed that the combination of HPT80 and AD-1S can produce methane and energy, while reducing tylosin concentration and antimicrobial resistance genes (ARG) in the litter.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Multidisciplinary Sciences
Ivon M. Campos, Jose Augusto Zorel, Marilia Menegatto, Flaviane Silva, Oscar F. H. Adarme, Marina Tonucci, Bruno E. L. Baeta, Sergio F. Aquino, Silvana Q. Silva
Summary: This study aimed to investigate the metabolism involved in hydrogen production using sugars released by thermochemical pretreatment of lignocellulosic biomass as substrate. The results showed negative effects of acetic acid, formic acid, and furfural on bacterial metabolism, while powdered activated carbon significantly enhanced hydrogen production in the experiment.
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
(2021)
