Article
Plant Sciences
Karyna Hordiei, Tetiana Gontova, Sonata Trumbeckaite, Maksym Yaremenko, Lina Raudone
Summary: The study evaluated the phenolic profiles and antioxidant activity of cultivated feverfew plants in Ukraine. Eleven phenolic compounds were identified in the samples, with hydroxycinnamic acids predominating. The total flavonoid content ranged from 0.8% to 2.6%, while the hydroxycinnamic acid content varied from 3.3% to 6.5%. These findings suggest the potential use of Ukrainian feverfew as a raw material for the development of new herbal medicines.
Article
Food Science & Technology
Ravshanbek Sultanbekovich Alibekov, Siti Mazlina Mustapa Kamal, Farah Saleena Taip, Alifdalino Sulaiman, Abdugani Mutalovich Azimov, Klara Abdyrazahovna Urazbayeva
Summary: This study focused on utilizing subcritical water to extract phenolic compounds from jackfruit seeds and correlate them with antioxidant activity. The highest total phenolic compounds (TPC) and antioxidant activity (AA) were obtained at 210°C, 30 min, and 15% solid loading under subcritical water extraction, with TPC of 1.84 mg GAE/100 g and AA of 86%. The subcritical water extraction obtained a higher amount of TPC compared to Soxhlet extraction.
Article
Biochemistry & Molecular Biology
Zening Wang, Colin J. Barrow, Frank R. Dunshea, Hafiz A. R. Suleria
Summary: Five Australian grown pear varieties were selected for this study, with Beurre Bosc and Josephine de Malines exhibiting high levels of phenolic compounds, suggesting potential health benefits.
Article
Biotechnology & Applied Microbiology
Soniya Mohammadi, Andrea C. Alfaro, Saeid Baroutian, Ali Seyfoddin
Summary: Water-soluble bioactive compounds were extracted from New Zealand black-footed abalone (Haliotis iris) using subcritical water extraction technique. The study found that the extraction temperature significantly influenced the extraction performance and bioactivity of the extracts.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Article
Plant Sciences
Katarzyna Angelika Gil, Stela Jokic, Ana-Marija Cikos, Marija Banozic, Martina Jakovljevic Kovac, Antonella Fais, Carlo Ignazio Giovanni Tuberoso
Summary: This study investigated the effects of four green extraction techniques (ultrasound-assisted extraction, supercritical fluid extraction, subcritical water extraction, and extraction using deep eutectic solvents) on the extraction of flavonoids from edible feijoa flowers. The highest yields for specific flavonoids were obtained with ultrasound-assisted extraction and deep eutectic solvents. Supercritical CO2 extraction resulted in the highest yield of flavone. Ultrasound-assisted extraction also had the highest total polyphenol content and antioxidant activity.
Article
Chemistry, Applied
Patricia Campos Mesquita, Luiz Gustavo G. Rodrigues, Simone Mazzutti, Paulo Riceli Vasconcelos Ribeiro, Edy Sousa de Brito, Marcelo Lanza
Summary: The study compared the chemical profiles of acerola pomace extracts using untargeted metabolomics approach, showing that subcritical water extraction saves time and solvent while extracting valuable components compared to Soxhlet. Increasing temperature significantly improved extraction yield and antioxidant activity.
Article
Biotechnology & Applied Microbiology
Ye-Seul Park, Vikash Chandra Roy, Jin-Seok Park, Ji-Min Han, Yu-Na Shin, Ye-Ryeon Shin, Sin-Won Park, Byung-Soo Chun
Summary: Bioactive compounds were extracted from the brown seaweed Ecklonia stolonifera using subcritical water hydrolysis, which is a green extraction technique. The release of active compounds such as sugars, phenolics, flavonoids, and antioxidants was influenced by reaction temperature, with an optimum extraction temperature of 195°C. Six different phenolic compounds were identified, with gallic acid being the most abundant. The hydrolysates obtained exhibited strong antioxidant and antimicrobial activities. This study provides valuable insights for the further utilization of brown seaweeds in applications with potential benefits for humans.
JOURNAL OF APPLIED PHYCOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Katarzyna Angelika Gil, Paulina Nowicka, Aneta Wojdylo, Gabriele Serreli, Monica Deiana, Carlo Ignazio Giovanni Tuberoso
Summary: This study evaluated the antioxidant activity and inhibition of targeted digestive enzymes of original smoothies made from strawberry tree fruit puree and apple juice enriched with various fruits. The results showed that the addition of certain fruits increased the antioxidant activity and ability to scavenge reactive oxygen species. The smoothies also exhibited inhibitory activity on alpha-amylase and alpha-glucosidase. The total polyphenol content ranged between 535.75 mg/100 g fw and 635.96 mg/100 g fw, with Acca sellowiana providing the highest amount. Flavan-3-ols were the dominant phenolic compounds, while only smoothies enriched with Crocus sativus showed a high amount of anthocyanins. These original smoothies have potential as nutraceuticals due to their favorable antioxidant compound profile.
Article
Chemistry, Applied
P. Alonso-Riano, M. T. Sanz, O. Benito-Roman, S. Beltran, E. Trigueros
Summary: The study explored the valorization of brewer's spent grain through subcritical water hydrolysis, revealing the highest protein solubilization rate at 185 degrees C, the highest free amino acid content at 160 degrees C, and the maximum total phenolic compounds at 185 degrees C. This research provides insights into the fractionation of bioactive compounds and the integration of small breweries into the biorefinery concept.
Article
Food Science & Technology
Pattarin Supanivatin, Aluck Thipayarat, Suwit Siriwattanayotin, Paweena Ekkaphan, Anat Deepatana, Jakrapop Wongwiwat
Summary: This study investigated the extraction of antioxidants and antibacterial substances from Robusta-roasted coffee using different extraction techniques. The results showed that HCFC-22 extraction had the highest yield, while HFC-134a extraction exhibited the highest antioxidant potential. Room-temperature batch extraction yielded slightly higher amounts of extracts with higher antioxidant potential compared to other methods. The extracts obtained using SCCO2 extraction had similar yield and antioxidant potential to those obtained using HFC-134a and HCFC-22 extractions.
Article
Food Science & Technology
Serena Carpentieri, Giuseppina Augimeri, Jessica Ceramella, Adele Vivacqua, Maria Stefania Sinicropi, Gianpiero Pataro, Daniela Bonofiglio, Giovanna Ferrari
Summary: The study utilized pulsed electric field pretreatment to enhance the extractability of valuable compounds from artichoke by-products, demonstrating the antioxidant and anti-inflammatory properties of the extracts. Biological effects on THP-1 macrophages were investigated.
Article
Biochemistry & Molecular Biology
Mounia Chroho, Aziz Bouymajane, Mustapha Aazza, Yassine Oulad El Majdoub, Francesco Cacciola, Luigi Mondello, Touriya Zair, Latifa Bouissane
Summary: Origanum compactum extracts are rich in total phenols and flavonoids, and contain various phenolic compounds. In addition, the extract exhibits strong antioxidant activity and shows antibacterial effects against several bacteria.
Article
Food Science & Technology
Katarzyna Angelika Gil, Aneta Wojdylo, Paulina Nowicka, Paola Montoro, Carlo Ignazio Giovanni Tuberoso
Summary: Using a multi-analytical approach, this study investigated the impact of adding Arbutus unedo and Diospyros kaki fruits, Myrtus communis berry extract, Acca sellowiana, or Crocus sativus flower by-products to apple juice on bioactive compounds and antioxidant activity. The highest polyphenol content and antioxidant activity were found in products with added A. sellowiana and D. kaki, respectively. The addition of A. unedo fruits significantly increased vitamin C content. The study demonstrated that the new apple smoothies were enriched in beneficial molecules and antioxidant activity.
Article
Food Science & Technology
Gia Toan Vo, Ziyao Liu, Osbert Chou, Biming Zhong, Colin J. Barrow, Frank R. Dunshea, Hafiz A. R. Suleria
Summary: The study reveals the qualitative and quantitative analysis of phenolic composition and antioxidant capacity in five varieties of Australian grapes. Golden Globe grapes exhibit the highest levels of phenolic content and antioxidant capacity, while Thompson Seedless grapes excel in certain aspects.
Article
Food Science & Technology
Yuwei Wang, Ying Ye, Le Wang, Wei Yin, Jian Liang
Summary: Subcritical water extraction (SWE) is an efficient and environmentally friendly method for extracting anthocyanins from raspberry, with high extraction efficiency and superior antioxidant activity compared to conventional extraction methods.
Article
Environmental Sciences
Natasa Nastic, Ana Vasic, Dragana Soronja Simovic, Jelena Vladic, Stela Jokic, Krunoslav Aladic, Senka Vidovic
Summary: Fruit crop by-products and waste have become a focus for creating new fortified products, especially in the food and pharmaceutical industry. This research proposed new approaches for utilizing Rosa canina herbal dust and its functional ingredients, highlighting the potential for industrial applications in baking.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Food Science & Technology
Diana Pinto, Manuela M. Moreira, Elsa F. Vieira, Jaroslava Svarc-Gajic, Anna Vallverdu-Queralt, Tanja Brezo-Borjan, Cristina Delerue-Matos, Francisca Rodrigues
Summary: Functional cookies made from Chestnut (Castanea sativa) shells (CSs) extract show good nutritional composition, high phenolic and flavonoid contents, excellent antioxidant and antiradical activities, and great sensory evaluation. This study encourages the sustainable recovery of antioxidants from CSs and their further use as active nutraceutical ingredients in functional cookies.
Article
Chemistry, Analytical
Alvaro Torrinha, Miguel Tavares, Vitoria Dibo, Cristina Delerue-Matos, Simone Morais
Summary: The increase in anthropogenic pollution raises concerns about water and aquatic species contamination, which could have implications for human health. Pharmaceutical compounds, a type of emerging contaminant, are increasingly consumed and found in the aquatic environment. In this study, a simple electrochemical sensor based on untreated carbon fiber paper was used for the analysis of trimethoprim antibiotic in fish samples. The sensor showed comparable performance to commonly used sensors, with a linear range of 0.05 to 2 mu M, sensitivity of 48.8 mu A mu M-1 cm(-2), and LOD of 0.065 mu M. It was successfully applied to trimethoprim determination in fish samples.
Article
Green & Sustainable Science & Technology
Elena Surra, Alvaro Torrinha, Cristina Delerue-Matos, Simone Morais
Summary: Life cycle assessment (LCA) was used to compare the environmental impacts of using a simple electrochemical carbon paper sensor (CPS) and traditional liquid high-performance chromatography (HPLC) for ketoprofen detection in fish. The results showed that CPS had significant advantages over HPLC in 16 out of 18 impact categories, with average CPS values 26% lower than HPLC. CPS saved significant amounts of non-carcinogenic and carcinogenic human toxicities, fossil resources, and greenhouse gas emissions compared to HPLC.
Article
Engineering, Chemical
Tanja Brezo-Borjan, Jaroslava Svarc-Gajic, Simone Morais, Cristina Delerue-Matos, Francisca Rodrigues, Ivana Loncarevic, Biljana Pajin
Summary: Orange peels were treated with subcritical water to obtain extracts rich in bioactive compounds. The highest total phenolics content, total flavonoids content, and total antioxidant capacity were obtained at low temperatures and short extraction times. These results demonstrate the potential of subcritical water treatment as a green technology for obtaining bioactive compounds.
Review
Chemistry, Analytical
Patricia Rebelo, Isabel Seguro, Henri P. A. Nouws, Cristina Delerue-Matos, Joao G. Pacheco
Summary: The scarcity of clean water leads to the exploration of using treated wastewater. Monitoring campaigns have found emerging contaminants present in trace amounts, including pharmaceuticals, pesticides, and personal care products. Plasmonic sensors with molecularly imprinted polymers (MIPs) offer a potential solution for monitoring analytes in water samples, providing higher sensitivity and fast response through miniaturization. This work provides an overview of MIP-based plasmonic sensors, focusing on the fabrication/recognition procedure and the use of metals and nanomaterials to enhance sensor performance.
Review
Chemistry, Analytical
Mariana Lamas, Francisca Rodrigues, Maria Helena Amaral, Cristina Delerue-Matos, Virginia Cruz Fernandes
Summary: Environmental pollution is a significant issue in our society, and it is important to understand its consequences, including increased contaminant cocktails in the environment. The contamination of honeybees can lead to contamination of their products, such as honey. Controlling the quality and safety of honey, including evaluating contaminants and following legislation, is crucial.
Article
Chemistry, Analytical
Sladana Krivosija, Igor Jerkovic, Natasa Nastic, Mire Zloh, Stela Jokic, Marija Banozic, Krunoslav Aladic, Senka Vidovic
Summary: This study focuses on finding new ways to utilize the fruit dust obtained from orange peel during industrial processing. It investigates the integration of two green extraction methods, CO2-assisted extraction and ultrasound-assisted extraction (UAE). The chemical characterization of the extracts obtained through these methods is analyzed, and in silico testing is performed to identify the most valuable bioactive compounds.
MICROCHEMICAL JOURNAL
(2023)
Article
Polymer Science
Silvia D. Martinho, Virginia Cruz Fernandes, Sonia A. Figueiredo, Rui Vilarinho, J. Agostinho Moreira, Cristina Delerue-Matos
Summary: This study simulated the aging process of six types of microplastics in freshwater and seawater ecosystems and evaluated the effects using various analysis methods. The results showed that aging caused changes in the surface characteristics of microplastics and their interaction with other pollutants.
Review
Polymer Science
Diana Rede, Cristina Delerue-Matos, Virginia Cruz Fernandes
Summary: Plastic, a crucial material in modern society, has caused significant ecological stress due to high production rates and inadequate waste management. Microplastics (MPs) have emerged as a major environmental problem globally, affecting both terrestrial and aquatic ecosystems. This review emphasizes the need for interdisciplinary collaboration to address the issue of MP pollution and highlights gaps in the existing literature for future research.
Editorial Material
Chemistry, Multidisciplinary
Simone Morais
Article
Biology
Isabella Bracchi, Juliana Guimaraes, Catarina Rodrigues, Rui Azevedo, Claudia Matta Coelho, Catia Pinheiro, Juliana Morais, Ines Barreiros-Mota, Virginia Cruz Fernandes, Cristina Delerue-Matos, Edgar Pinto, Andre Moreira-Rosario, Luis Filipe Ribeiro de Azevedo, Claudia Camila Dias, Jorge Lima, Ines Sapinho, Carla Ramalho, Conceicao Calhau, Joao Costa Leite, Agostinho Almeida, Diogo Pestana, Elisa Keating
Summary: This study aimed to evaluate the role of essential trace elements in pregnancy health. The findings suggest that high urinary zinc levels increase the risk of pre-eclampsia, but decrease the risk of small head circumference at birth.
Article
Environmental Sciences
Luisa Correia-Sa, Virginia C. Fernandes, Maria Luz Maia, Edgar Pinto, Sonia Norberto, Agostinho Almeida, Cristina Santos, Cristina Delerue-Matos, Conceicao Calhau, Valentina F. Domingues
Summary: This study evaluated the exposure of Portuguese children to environmental chemicals through urine analysis and identified predictors of exposure. The results showed that region, age, diet, and weight group were significant predictors of urinary concentrations of certain elements.
Article
Chemistry, Physical
P. Belmonte, J. M. Garcia-Vargas, J. F. Rodriguez, I. Garrido, M. T. Garcia, M. J. Ramos
Summary: In this study, four polythiourethane films with different types of polyols and isocyanates were synthesized, characterized, and foamed. The results showed that the type of isocyanate greatly influenced the crystallinity and stiffness of the polymers, while the type of polyol modified the FT-IR spectra and the decomposition curve of the material with temperature. Furthermore, the choice of isocyanate also affected the properties of the foams obtained from the polymeric material.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Xutao Zhu, Jianguo Yan, Shouchun Liu, Fengling Zhu
Summary: This study experimentally assessed the hydrodynamic characteristics of supercritical-pressure R134a in a horizontal circular tube. It was found that the hydrodynamic characteristic curve of R134a under supercritical pressure does not have a negative-slope region but a transition region. The transition region becomes more evident with increasing heat flux, while it weakens with increasing pressure and inlet temperature. Moreover, the onset of the transition region shifts in the direction of high mass flow rate with increasing heat flux.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Stefania Mottola, Iolanda De Marco
Summary: In this study, corticosteroids were micronized with cyclodextrin using Supercritical Assisted Atomization (SAA), resulting in spherical micrometric particles with improved dissolution time.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Honghai Liu, Yu Xie, Zhilan Li, Xiaokai Zhang
Summary: This study compared the effects of supercritical carbon dioxide dewatering (SCD) and conventional kiln drying (CKD) at a temperature of 55 degrees C on the dewatering rate, moisture transfer and distribution, shrinkage, and stress characteristics of bamboo strips. The results showed that SCD had a faster dewatering rate and lower shrinkage compared to CKD, but was less effective in reducing drying stress in bamboo.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Tahmasb Hatami, Ozan N. Ciftci
Summary: This study fills the gap in previous research by establishing a hierarchy of significance for factors affecting SFE profitability, providing a deeper understanding of how technical and economic factors impact profitability. The findings highlight that the SFE facility becomes profitable when the extractor capacity surpasses 42 L.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Tingshan Guo, Chuang He, Zhiyuan Liang, Qinxin Zhao
Summary: The initial oxidation behavior of Fe10Cr and Fe20Cr alloys in supercritical H2O and supercritical CO2 with O2 has been investigated. The results show that O2 has the highest adsorption energy on FeCr alloys and reacts faster than H2O and CO2.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Vikash Chandra Roy, Jin-Seok Park, Ahmed Redwan Haque, Md Sadek Ali, Hee-Jeong Lee, Byung-Soo Chun
Summary: This research aimed to valorize brewery spent grain (BSG) using subcritical water hydrolysis (SWH) modified by six different natural deep eutectic solvents (DES) and determining their bipotentialities. The findings showed that BSG hydrolysates obtained through DES-induced SWH contained high levels of sugars, proteins, flavonoids, phenolic compounds, and essential amino acids. The hydrolysates also demonstrated antimicrobial activities, and the presence of bioactive compounds was confirmed through FT-IR analysis. This comprehensive profiling of bioactive compounds from BSG using DES-mediated SWH can contribute to the efficient valorization of BSG for industrial purposes.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Kailiang Zhang, Hanyu Wang, Tong Liu, Zhu Wang, Lvxing Wang, Ping Fan, Feng Chen, Mingqiang Zhong, Bozhen Wu, Shanqiu Liu, Jintao Yang
Summary: This study investigates the influence of foam cell structure on the electromagnetic interference shielding performance of conductive polymer composite foam. The results suggest that foamed composites exhibit improved EMI shielding performance, and bimodal cell foams have higher electric conductivity but lower EMI shielding compared to uniform cell foams.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Jaromir Valtr, Petr Roztocil, David Dasek, Radek Musalek, Frantisek Lukac, Jakub Klecka, Marek Janata, Mariana Arnoult-Ruzickova, Eva Mistova, Ludek Jelinek, Petr Sajdl, Jan Macak
Summary: This paper focuses on the design of an experimental facility for in-situ electrochemical testing at supercritical water conditions, including the design of the electrode system and surface insulation coating for electrode leads.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Richard Djimasbe, Mikhail A. Varfolomeev, Nailya M. Khasanova, Ameen A. Al-Muntaser, Rustam R. Davletshin, Muneer A. Suwaid, Gazinur Z. Mingazov
Summary: This study confirms the capability of supercritical water to generate active hydrogen that interacts with different fractions in unconventional feedstocks, leading to synthetic oil production during hydrothermal reactions. The findings suggest that a maximum yield of 16.78% can be achieved at a temperature of 380 oC and a reaction time of 1-12 hours.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
