Article
Chemistry, Physical
Rayane Monique Sete da Cruz, Camila da Silva, Edson Antonio da Silva, Pablo Hegel, Carlos Eduardo Barao, Lucio Cardozo-Filho
Summary: The study showed that extraction using pressurized n-propane for insect oils required less time and resulted in oils with good oxidative stability compared to Soxhlet extraction with hexane. The extracted oils possessed characteristics between animal and vegetable oils, making them an alternative source of oils and fats.
JOURNAL OF SUPERCRITICAL FLUIDS
(2022)
Article
Chemistry, Medicinal
Chen Yong, Guoshun Huang, Hongwei Ge, Yiye Zhu, Yang Yang, Yongfei Yu, Fang Tian, Kun Gao, Enchao Zhou
Summary: This study found that P. frutescens can alleviate TMAO-induced kidney damage by inhibiting ASK1-JNK phosphorylation, suggesting it may be an effective treatment for TMAO damage in CKD.
PHYTOTHERAPY RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Youssef Elouafy, Zineb Lakhlifi El Idrissi, Adil El Yadini, Hicham Harhar, Mohammed Merae Alshahrani, Ahmed Abdullah Al Awadh, Khang Wen Goh, Long Chiau Ming, Abdelhakim Bouyahya, Mohamed Tabyaoui
Summary: This study evaluated the oxidative stability of roasted and unroasted walnut oils under accelerated storage conditions. The results showed slight changes in chemical composition and antioxidant activity for the roasted oil, while the fatty acid profiles remained stable. Both oils exhibited excellent physicochemical properties and were able to withstand high temperature conditions.
Article
Chemistry, Physical
Bruno Rodrigues Wenceslau, Katia Andressa Santos, Edson Antonio da Silva, Lucio Cardozo-Filho, Camila da Silva, Rogerio Favareto
Summary: The study investigated oil extraction from Syagrus oleracea kernels using supercritical CO2 and compressed propane. It found that compressed propane extraction had lower pressure and solvent consumption, and was advantageous for the recovery of beta-sitosterol.
JOURNAL OF SUPERCRITICAL FLUIDS
(2021)
Article
Energy & Fuels
Hassan Sadeghi Yamchi, Mohsen Zirrahi, Hassan Hassanzadeh, Jalal Abedi
Summary: This study conducted comprehensive liquid-liquid equilibrium measurements for propane + n-butane/bitumen mixtures, providing experimental data and a predictive model for solvent-based bitumen and heavy oil recovery processes. The results are applicable in optimizing the composition of multi-component solvents in these processes.
Article
Chemistry, Applied
Sulaiman N. Basahel, Asma H. A. Medkhali, Mohamed Mokhtar, Katabathini Narasimharao
Summary: Noble metals incorporated LaFeO3 perovskite oxide nanostructures were synthesized and used as catalysts for olefin production through oxidative cracking of n-propane. The incorporation of Rh into LaFe framework showed the best catalytic performance. The correlation between the structural properties of the synthesized catalysts and their catalytic activity was investigated.
Article
Engineering, Electrical & Electronic
Chao Zhang, Xuefeng Jiang, Yufei Zhao
Summary: This article investigates an instantaneous channel propagation modeling scheme with compressed sensing recovery and electromagnetic interpolation for aeronautical communications systems to reduce the cost of flight experiments. The experimental results show the effectiveness of the proposed method in reducing the number of sampling points.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Environmental Sciences
Bo Hu, Jianing Quan, Kun Huang, Jianqiang Zhao, Guohua Xing, Pei Wu, Ying Chen, Xiaoqian Ding, Yuansheng Hu
Summary: The C/N ratio and DO concentration are crucial factors influencing the aerobic denitrification process, with the model revealing that nitrogen removal efficiency increases with higher C/N ratio and lower DO concentration. The synthesis of cell internal storage products is impacted by C/N ratio, while the effects of DO concentration are due to competition for substrate between heterotrophs and aerobic denitrifiers.
Article
Computer Science, Information Systems
Lihui Pang, Hyoungshick Kim, Bin Yang, Xinlin Wang, Yansong Gao
Summary: The study evaluated the security of nCk-PUF numerically, finding that modeling attacks could break the unpredictability of nCk-PUF despite possible increase in its non-linearity. Therefore, n-Choose-k-Sum PUFs, including mrSPUF, may pose security risks.
Article
Biotechnology & Applied Microbiology
Jetsada Ruangsuriya, Neal M. Davies, Kewalin Inthanon
Summary: Age-related diseases and cellular senescence are major concerns in Thailand and the ASEAN region due to the aging population. This study evaluated the antioxidant and anti-aging properties of Amaranthus dubius leaves, Perilla frutescens seeds, and Phyllanthus emblica fruits. The results showed that all plant extracts possessed antioxidant properties, with Phyllanthus emblica displaying the highest efficacy. However, Phyllanthus emblica showed potential toxicity to normal cells.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Satoshi Asada, Koichi Murata, Hidekazu Tsuchida
Summary: The current-voltage characteristics of an n-type 4H-silicon carbide epilayer with a stacking fault were studied using TCAD simulation. A quantum well model was used to represent the stacking fault, which was found to dominantly affect the electron conductance. By deducing the energetic depth and width of the quantum well, the temperature dependence of the experimental current-voltage characteristics of Schottky barrier diodes with the stacking fault was accurately reproduced, demonstrating the quantitative prediction capability of the proposed simulation model.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Chemistry, Applied
Jose-Luis Sanchez-Garcia, Brent E. Handy, Angel G. Rodriguez, Marco Martin Gonzalez-Chavez, Roberto Garcia de Leon, Maria-Guadalupe Cardenas-Galindo
Summary: Four V-Ce/SiO2 catalysts were synthesized using different methods for Ce incorporation, leading to different VOx speciation. The catalyst with V2O5 nano-crystals synthesized via Ce impregnation showed high selectivity and acid strength, while the catalyst with Cerium vanadate phase prepared via grafted Ce lacked acidity and exhibited low selectivity to dehydrogenation products.
TOPICS IN CATALYSIS
(2022)
Article
Biochemical Research Methods
Chenguang Liang, Austin W. T. Chiang, Nathan E. Lewis
Summary: Variations in N-glycosylation impact glycoprotein functions, diseases, and biotherapeutic drug safety and efficacy. This article presents a protocol using GlycoMME to study N-glycosylation biosynthesis from glycomics data. The protocol includes steps for data annotation, quantifying perturbations, and predicting the impact of mutations and glycoengineering strategies. For complete details, refer to Liang et al. (2020).
Article
Thermodynamics
Vener F. Khairutdinov, Ilnar Sh. Khabriev, Farid M. Gumerov, Talgat R. Akhmetzyanov, Lenar Yu. Yarullin, Ludmila Yu. Sabirova, Ilya Polishuk, Ilmutdin M. Abdulagatov
Summary: In this study, the isothermal vapor-liquid equilibrium of propane + phenol and tetracosane + propane/n-butane systems was directly determined using a high-pressure optical cell. The critical properties of both mixtures were derived from the measured VLE data, and the qualitative behavior of heat capacities and compressibility of the propane + phenol binary mixture near the critical point was studied. The simplified critical point-based perturbed-chain statistical association fluid theory was found to accurately predict the properties of phenol and had reliable predictive capabilities for other systems.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2022)
Article
Biotechnology & Applied Microbiology
Maraisa Lopes de Menezes, Gracielle Johann, Alexandre Diorio, Joana Schuelter Boeing, Jesui Vergilio Visentainer, Ana Caroline Raimundini Aranha, Nehemias Curvelo Pereira
Summary: Grape seeds, the byproduct of grape processing, contain oil with high-quality compounds. Grape seed oil extracted using different methods showed variations in physicochemical properties, fatty acid composition, antioxidant capacity, degree of unsaturation, and critical properties. The highest antioxidant capacity was observed in lipophilic and hydrophilic extracts, and the content of linoleic acid differed based on the extraction method. Cabernet Sauvignon and Ives grape seeds had oil contents ranging from 7% to 18%, with varying concentrations of saturated, mono- and polyunsaturated fatty acids. The ultrasound-assisted extraction method resulted in the highest oil content under specific conditions.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Applied
Jesui Vergilio Visentainer, Luciana Pelissari Manin, Adriela Albino Rydlewski, Jessica Santos Pizzo, Victor Hugo Maldonado da Cruz, Eloize da Silva Alves, Patricia Daniele Silva Santos, Jane Martha Graton Mikcha, Marcelo Cristianini, Oscar Oliveira Santos
Summary: The effects of high-pressure processing (HPP) and Holder pasteurization (HoP) on mature human milk were compared. Both processes eliminated microorganisms and showed no significant differences in macronutrients and acidity. HPP had a higher concentration of palmitic and oleic acids. The TAG profile analysis suggested that HPP with lower pressures was more beneficial and could be a promising alternative to HoP in human milk banks.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Engineering, Chemical
Marina Roberto Martins, Gracielle Johann, Fernando Palu, Edson Antonio da Silva
Summary: This study investigated the impact of pre-heat treatment on the oil extraction process from guaco leaves and determined the optimal operating conditions. The results showed that under the optimal conditions, the energy consumption of drying was minimized while maximizing the oil mass. These findings contribute to ensuring safety in storing guaco leaves and optimizing the extraction process.
JOURNAL OF FOOD PROCESS ENGINEERING
(2023)
Article
Biochemical Research Methods
Jessica S. Pizzo, Victor H. M. Cruz, Luciana P. Manin, Patricia D. S. Santos, Geovane R. Silva, Patricia M. Souza, Alisson L. Figueiredo, Oscar O. Santos, Jesui V. Visentainer
Summary: The study aims to assess the quality and purity of 10 body oils based on sweet almond oils available in the Brazilian market. Gas chromatography and mass spectrometry were used to analyze the fatty acid composition and triacylglycerol profiles. The presence of soybean oil as an adulterant was confirmed in most samples. This highlights the importance of better regulation to ensure the authenticity and quality of sweet almond oil products.
JOURNAL OF MASS SPECTROMETRY
(2023)
Article
Biotechnology & Applied Microbiology
Thainara Bovo Massa, Lucio Cardozo-Filho, Camila da Silva
Summary: This study investigated the reaction of fusel oil (FO) with pressurized water in a continuous flow reactor to understand the effects of operating conditions on reaction products formation and antimicrobial activity. FO composition was characterized using high resolution mass spectrometry and gas chromatography coupled mass spectrometry, and reaction products were evaluated for antifungal potential. Results showed that FO mainly consisted of isoamyl alcohol and organic functions like alcohols, aldehydes, ketones, and lipids. Different reaction mechanisms were observed in subcritical and supercritical states, leading to the identification of pyrazine derivatives compounds in the reaction products. The reaction products obtained at 300°C and 400°C demonstrated strong inhibition against Schizophyllum commune and Trametes versicolor fungi.
Article
Chemistry, Applied
Jessica S. Pizzo, Jesui V. Visentainer, Andre L. B. R. da Silva, Camila Rodrigues
Summary: Growers commonly use chemical sanitizers to wash fresh produce during postharvest handling, but this poses risks to both the washing systems and workers' health. Essential oils such as thyme, oregano, cinnamon, and clove have been studied as potential alternatives to chemical sanitizers for produce washing. The combination of essential oils and surfactants can enhance the antimicrobial activity of emulsions, but further research is needed to evaluate the effect of different chemical components of essential oils and preparations. Overcoming challenges such as high levels of essential oils needed, unwanted impact on produce quality, and poor solubility in aqueous solutions should also be addressed.
Article
Biochemistry & Molecular Biology
Eloize Silva Alves, Cintia Stefhany Ripke Ferreira, Paulo Ricardo Souza, Andressa Rafaella Silva Bruni, Matheus Campos Castro, Bruno Henrique Figueiredo Saqueti, Oscar Oliveira Santos, Grasiele Scaramal Madrona, Jesui Vergilio Visentainer
Summary: This study investigated the effects of maltodextrin and gum arabic on freeze-dried human milk (HM), aiming to improve its quality and solubility. The results showed that both coatings led to higher solubility and better stabilization of HM, with gum arabic demonstrating superior performance. The combination of gum arabic and maltodextrin also showed promising results, indicating their potential synergistic effects.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Food Science & Technology
Andreia Farias Pereira Batista, Luana Carolina Martins Rosa, Jessica Santos Pizzo, Alex Fiori da Silva, Jesui Vergilio Visentainer, Benicio Alves de Abreu Filho, Renata Katsuko Takayama Kobayashi, Gerson Nakazato, Jane Martha Graton Mikcha
Summary: This study evaluated the antibacterial activity of cinnamaldehyde (CIN) and biogenic silver nanoparticles (BioAgNP) both alone and in combination against Escherichia coli, Salmonella Typhimurium, and Staphylococcus aureus in vitro. The combination of CIN and BioAgNP showed a synergistic effect at low concentrations and effectively inhibited the growth of E. coli on fresh sweet grape tomatoes within 5 minutes of contact. Furthermore, this combination did not significantly alter the physicochemical properties of the tomatoes and could potentially be used for decontamination of fruits and vegetables to prevent foodborne diseases.
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
(2023)
Article
Chemistry, Multidisciplinary
Rodrigo Sadao Inumaro, Rhaira Fernanda Ayoub Casalvara, Rubia Carvalho Gomes Correa, Lillian Barros, Carla Pereira, Ricardo M. Calhelha, Sandrina A. Heleno, Tatiana Colombo Pimentel, Jose Eduardo Goncalves, Lucio Cardozo-Filho
Summary: This study aimed to determine the best extraction parameters for supercritical fluid-assisted extraction of hop cone residue. The extracts showed inhibitory action towards certain bacteria and were safe for food and pharmacological applications. Lower temperatures, pressures, and ethanol percentages resulted in higher concentrations of certain compounds and higher antioxidant activity in cell-based assays, while higher ethanol percentages resulted in higher concentrations of other compounds and increased antioxidant activity in chemical systems. The hop cone residue can be upcycled into multifunctional ingredients for the food and pharmacological industries. Using 40 degrees C, 10 MPa, and 5 or 10% ethanol percentage as process parameters is advisable.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Multidisciplinary
Rafael Abrantes Penchel, Ivan Aldaya, Lucas Marim, Mirian Paula dos Santos, Lucio Cardozo-Filho, Veeriah Jegatheesan, Jose Augusto de Oliveira
Summary: Cleaner production is a comprehensive approach to reduce or avoid environmental impact in various fields during the production stage. Using dimensionality reduction and artificial neural networks, this study models the relationship between input variables (cleaner production techniques) and output variables (cleaner production performance) to assess their sensitivity. The results suggest that improving practices with lower ratings can greatly enhance the overall output figures, particularly in the area of reuse.
APPLIED SCIENCES-BASEL
(2023)
Article
Food Science & Technology
Jonas Marcelo Jaski, Rayane Monique Sete da Cruz, Tatiana Colombo Pimentel, Natalia Stevanato, Camila da Silva, Carlos Eduardo Barao, Lucio Cardozo-Filho
Summary: This study aimed to combine two high-quality products, olive leaves and chia and sesame seeds, to obtain oils with attractive nutritional properties and high levels of bioactive compounds. The use of pressurized propane in vegetable oil extraction provided solvent-free oil. The mass percentage yields of the olive leaf extracts with chia and sesame oils were 23.4% and 24.8%, respectively.
Article
Biochemistry & Molecular Biology
Gustavo Leite Dias Pereira, Lucio Cardozo-Filho, Veeriah Jegatheesan, Reginaldo Guirardello
Summary: This study aims to extend the Hermia model by introducing new values of parameter n and improving its effectiveness in fitting experimental data. The extended Hermia model (EHM) performs consistently better than the original model in six micro- and ultrafiltration examples. The study also discusses the impact of factors such as transmembrane pressure, crossflow rate, crossflow velocity, membrane composition, and pretreatments on the blocking mechanisms.
Article
Immunology
Maiara A. A. Daga, Scheila T. T. Nicolau, Juliana Jurumenha-Barreto, Lucas B. S. Lima, Isaac L. L. Cabral, Ana Paula Pivotto, Amanda Stefanello, Joao P. A. Amorim, Jaqueline Hoscheid, Edson A. A. Silva, Thais S. Ayala, Rafael A. A. Menolli
Summary: In this study, a supercritical CO2 extract from the leaves of Cecropia pachystachya was evaluated for its in vitro and in vivo activity against Trypanosoma cruzi. The extract showed activity against different stages of the parasite without affecting macrophages viability, and demonstrated a selectivity index similar to the reference drug. However, in vivo experiments showed that the extract had a negative effect on infected mice, possibly due to its anti-inflammatory activity.
PARASITE IMMUNOLOGY
(2023)
Article
Environmental Sciences
Mariana Bisinotto Pereira, Guilherme Botelho Meireles de Souza, Isabela Milhomem Dias, Julles Mitoura dos Santos-Junior, Antonio Carlos Daltro de Freitas, Jose M. Abelleira-Pereira, Christian Goncalves Alonso, Lucio Cardozo-Filho, Reginaldo Guirardello
Summary: Teaching and research laboratories generate various types of wastes, which are carelessly discarded due to lax waste management policies. This study proposes the use of supercritical water oxidation (SCWO) for treating complex wastewater generated in these laboratories. The SCWO process, which is environmentally friendly, effectively degrades highly toxic and bio-refractory organic compounds. Experimental results show that SCWO can efficiently treat wastewater without producing harmful gases and adding hazardous chemicals.
Article
Engineering, Environmental
Suelen P. Facchi, Paulo R. Souza, Debora A. de Almeida, Liszt Y. C. Madruga, Priscila Rosseto, William M. de Carvalho Nunes, Matt J. Kipper, Alessandro F. Martins, Lucio Cardozo-Filho
Summary: This study proposes polymeric surface coatings based on chitosan and tannins as antimicrobial agents against Xanthomonas vasicola pv. vasculorum (Xvv) in corn plants. The coatings demonstrated antimicrobial activity and anti-adhesive properties against Xvv in in vitro assays, and they effectively protected corn plants from Xvv infection as physical barriers in in vivo assays. This research introduces a promising strategy using environmentally-friendly polymers to combat bacterial corn streak disease.
CHEMICAL ENGINEERING JOURNAL
(2023)
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)
