Article
Biochemistry & Molecular Biology
Mmabatho Kgongoane Segwatibe, Sekelwa Cosa, Kokoette Bassey
Summary: This study assessed the free radical scavenging ability, reducing power, and antimicrobial activities of two extracts and two pure compounds of Moringa oleifera. The ethanol extract showed the highest antioxidant potential, followed by compound E3, compound Ra, and finally the hexane extract. However, the extracts and pure compounds of M. oleifera had little to no antibacterial potential. This research highlights the antioxidant properties of M. oleifera extracts, which can be beneficial for degenerative conditions such as cancer and cardiovascular disease.
Review
Biochemistry & Molecular Biology
Kanika Sharma, Manoj Kumar, Roji Waghmare, Rajat Suhag, Om Prakash Gupta, Jose M. Lorenzo, Suraj Prakash, Radha, Nadeem Rais, Vellaikumar Sampathrajan, Chandan Thappa, T. Anitha, Ali A. S. Sayed, Basel A. Abdel-Wahab, Marisennayya Senapathy, R. Pandiselvam, Abhijit Dey, Sangram Dhumal, Ryszard Amarowicz, John F. Kennedy
Summary: Moringa oleifera Lam. is a plant with various bioactivities, including polysaccharides and gums. Polysaccharides have been found to possess antihyperlipidemic, anti-diabetic, immunomodulatory, antihypertensive, and gastrointestinal protection functions. The extraction methods can influence the structure and bioactivity of polysaccharides. This review provides updated information on the extraction, purification, structural characterization, bioactivities, and potential applications of moringa polysaccharides.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Review
Chemistry, Multidisciplinary
Xinyue Su, Guanzheng Lu, Liang Ye, Ruyu Shi, Maomao Zhu, Xinming Yu, Zhiyong Li, Xiaobin Jia, Liang Feng
Summary: This paper discusses the current application of Moringa oleifera Lam. by summarizing its medicinal parts, active components, and potential mechanisms. The emerging products like drug preparation and product application in recent years are also clarified. Based on literature reports, further study is needed on the unique components and biological activities of M. oleifera.
Article
Biochemistry & Molecular Biology
Roberta Ceci, Mariateresa Maldini, Mark E. Olson, Domenico Crognale, Katy Horner, Ivan Dimauro, Stefania Sabatini, Guglielmo Duranti
Summary: This study evaluated the antioxidant effect of Moringa oleifera leaf extract (MOLE) on muscle cells under oxidative stress. The results showed that MOLE could restore the redox status of muscle cells, increase the antioxidant enzymatic system, and reduce oxidative damage.
Article
Plant Sciences
Siqiniseko S. Ndlovu, Anil A. Chuturgoon, Terisha Ghazi
Summary: The World Health Organization (WHO) reported that there are 37 million individuals living with HIV worldwide, with the majority in South Africa. This study investigated the toxicity of ARV drugs on mitochondria and the NRF2 antioxidant pathway and its possible amelioration using Moringa oleifera Lam (MO) leaf extracts.
Article
Chemistry, Applied
Athira D. Nair, T. J. James, S. L. Sreelatha, Bibu John Kariyil, Suresh N. Nair
Summary: The study demonstrated the protective efficacy of Moringa oleifera against age-related oxidative stress in the brains of aged rats, showing reduced lipid peroxidation and lipofuscin pigmentation, as well as increased levels of antioxidant enzymes and serotonin in treated groups. LC-MS-MS analysis revealed blood-brain barrier permeable secondary metabolites from the extract, with certain compounds showing promising binding affinity to key proteins involved in the antioxidant response.
NATURAL PRODUCT RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Curro Polo-Castellano, Rosa Maria Mateos, Francisco Visiedo, Miguel Palma, Gerardo F. Barbero, Marta Ferreiro-Gonzalez
Summary: Moringa oleifera Lam. is a tree with significant antioxidant properties, making the development of an optimal extraction method crucial for obtaining pharmacological products based on its bioactive compounds. Enzymatic extraction conditions were optimized using Plackett-Burman and Box-Behnken designs, with normalized areas and relative mass as response and quantification variables, respectively. Under the optimal extraction conditions, enzyme extractions were performed and evaluated for antioxidant power, total phenolic compounds, repeatability, and intermediate precision.
Article
Biochemistry & Molecular Biology
Martina Cirlini, Lorenzo Del Vecchio, Leandra Leto, Federica Russo, Luca Dellafiora, Valeria Guarrasi, Benedetta Chiancone
Summary: The study found that Moringa seeds have high germinability under different conditions, and the extracts obtained have varying total phenolic content and antioxidant activity. This research provides initial evidence to evaluate Moringa sprouts as future novel functional food or valuable source of bioactive compounds.
Article
Food Science & Technology
Tatiane Luiza C. Oldoni, Nathalie Merlin, Thariane Carvalho Bicas, Anaclara Prasniewski, Solange Teresinha Carpes, Jociani Ascari, Severino Matias de Alencar, Adna Prado Massarioli, Margarete Dulce Bagatini, Rafael Morales, Gustavo Thome
Summary: For the first time, the antihyperglycemic activity of Moringa oleifera leaves cultivated in Brazil was studied using a bioguided approach, leading to the isolation of phenolic compounds with high antioxidant activity. The ethyl acetate fraction showed significant antioxidant potential and protected the liver and kidney of diabetic rats.
FOOD RESEARCH INTERNATIONAL
(2021)
Review
Horticulture
Attilio Anzano, Mohammad Ammar, Marina Papaianni, Laura Grauso, Mohammed Sabbah, Rosanna Capparelli, Virginia Lanzotti
Summary: Moringa oleifera is a drought-resistant tree with high phytonutrient content, used for curing malnutrition and possessing medicinal properties. Phytochemical and pharmacological studies have confirmed its potential benefits in treating various diseases.
Article
Plant Sciences
Sharon T. Chitiyo, Bhekumthetho Ncube, Ashwell R. Ndhlala, Zivanai Tsvuura
Summary: The study found that as moisture stress increased, the accumulation patterns and concentration of proline, phenolic compounds, and antioxidant activity in Moringa oleifera leaves also increased. This suggests that the plant adapts to drought stress by synthesizing antioxidant and osmoprotectant compounds.
SOUTH AFRICAN JOURNAL OF BOTANY
(2021)
Article
Plant Sciences
Wang Fang, Bao Yifan, Shen Xinchun, Zengin Gokhan, Lyu Yi, Xiao Jianbo, Weng Zebin
Summary: Niazirin from M. oleifera exhibits significant antioxidant activity, effectively inhibiting the proliferation of vascular smooth muscle cells under high glucose conditions. It reduces ROS and MDA production, increases antioxidant capacity, and can be utilized as a potential natural antioxidant in preventing diabetic atherosclerosis.
Article
Horticulture
Tassia Fernanda Santos Neri Soares, Ana Veruska Cruz da Silva, Rajeev Arora
Summary: This study assessed the chilling tolerance of Moringa oleifera Lam. and found that chilling injury caused irreversible damage to the physiological indicators of the tree.
SCIENTIA HORTICULTURAE
(2023)
Review
Pharmacology & Pharmacy
Melva Louisa, Cyntia Gracesella Hutami Patintingan, Bantari W. K. Wardhani
Summary: Cardiometabolic disorders (CMD) have become a global emergency and pose a growing burden on health and economy. Studies have found that Moringa oleifera possesses antioxidant and anti-inflammatory effects, which can effectively treat CMD by regulating glucose and lipid metabolism and protecting against organ damage. Additionally, Moringa oleifera can regulate the gut microbiome and reduce harmful bacteria.
FRONTIERS IN PHARMACOLOGY
(2022)
Review
Food Science & Technology
Fang Wang, Yifan Bao, Chen Zhang, Libin Zhan, Washim Khan, Sahifa Siddiqua, Sayeed Ahmad, Esra Capanoglu, Krystyna Skalicka-Wozniak, Liang Zou, Jesus Simal-Gandara, Hui Cao, Zebin Weng, Xinchun Shen, Jianbo Xiao
Summary: Moringa oleifera, a tropical deciduous tree, has high economic and pharmaceutical value. It is rich in nutrients and bioactive phytochemicals, attracting attention for its anti-diabetic properties. Recent studies have reported numerous new chemical structures and pharmacological activities related to Moringa oleifera's anti-diabetic properties. This review summarizes the bioactive phytochemicals present in M. oleifera and provides experimental and clinical evidence, along with underlying mechanisms, for its therapeutic potential in diabetes. Insights gained from this review can contribute to the development of novel drugs.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2022)
Article
Chemistry, Applied
Denilson S. Costa, Ruan S. Gomes, Cristiane B. Rodella, Roberto B. da Silva Junior, Roger Frety, Erico Teixeira Neto, Soraia T. Brandao
Article
Biochemistry & Molecular Biology
Juliana L. Santana, Juliana M. Oliveira, Jamily S. Nascimento, Silvana Mattedi, Laiza C. Krause, Lisiane S. Freitas, Eliane B. Cavalcanti, Matheus M. Pereira, Alvaro S. Lima, Cleide M. F. Soares
BIOTECHNOLOGY AND APPLIED BIOCHEMISTRY
(2020)
Article
Chemistry, Physical
Rafaely N. Lima, Alan Diego C. Santos, Adauto S. Ribeiro, Lucio Cardozo-Filho, Lisiane S. Freitas, Andersson Barison, Emmanoel Costa, Pericles B. Alves
JOURNAL OF SUPERCRITICAL FLUIDS
(2020)
Article
Environmental Sciences
Maira Feitosa Menezes Macedo, Andre Luis Dantas Ramos
AIR QUALITY ATMOSPHERE AND HEALTH
(2020)
Article
Biochemistry & Molecular Biology
Lays C. Almeida, Milson S. Barbosa, Felipe A. de Jesus, Roberta M. Santos, Alini T. Fricks, Lisiane S. Freitas, Matheus M. Pereira, Alvaro S. Lima, Cleide M. F. Soares
Summary: The study demonstrated that guava seed biochar can serve as an effective support for Burkholderia cepacia lipase (BCL) in the transesterification reaction of crude coconut oil and ethanol, with the optimal condition of enzyme loading of 0.15 g/g at 40 degrees Celsius for 24 hours, which yielded the highest conversion rate.
BIOTECHNOLOGY AND APPLIED BIOCHEMISTRY
(2021)
Article
Chemistry, Applied
Breno C. da Silva, Pedro Henrique C. Bastos, B. S. Roberto, N. R. Checca, Roger Frety, Soraia T. Brandao
Summary: The study found that the addition of strontium led to a less active catalyst, while the replacement of lanthanum with cerium increased the overall activity of the catalyst. Nickel-based catalysts play a crucial role in the methane Oxy-CO2 reforming reaction.
Article
Engineering, Chemical
Samia Tassia Andrade Maciel, Alexander Andrey Lopes da Silva, Yasmin Guimaraes Pedro, Cristiano Nunes da Silva, Leoncio Diogenes Tavares Camara, Joao Monnerat Araujo Ribeiro de Almeida, Emerson Schwingel Ribeiro, Gabriel Francisco da Silva, Lisiane Santos Freitas, Donato Alexandre Gomes Aranda
CHEMICAL ENGINEERING & TECHNOLOGY
(2020)
Article
Chemistry, Applied
Breno C. da Silva, Pedro Henrique C. Bastos, Roberto B. S. Junior, N. R. Checca, Denilson S. Costa, Roger Frety, Soraia T. Brandao
Summary: It was found in the study that the La0.95Ce0.05Ni0.5Al0.5O3 sample, doped with aluminum and cerium, exhibited good resistance to carbon poisoning in dry methane reforming, with a high syngas yield and potential as a catalyst.
Article
Engineering, Chemical
Samia Tassia Andrade Maciel, Jorge Henrique Cardoso Reis, Gabriel Francisco da Silva, Lisiane dos Santos Freitas
Summary: The thermal degradation of lignocellulosic materials is a promising approach for obtaining energy sources and chemical products. The study showed that Moringa oleifera Lam. seeds and residues can potentially be used for energy production through thermochemical conversion, and that moringa residues can serve as a productive source of bioproducts, reducing the harmful effects of chemicals from fossil fuels.
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Thermodynamics
Silvia R. S. Martins, Suellen M. S. Andrade, Alini T. Fricks, Alvaro S. Lima, Daniel P. Silva, Renan T. Figueiredo, Lisiane S. Freitas, Rebeca Y. Cabrera-Padilla, Cleide M. F. Soares, Ranyere L. Souza
Summary: The present study evaluated the synergistic effect of imidazolium-based ionic liquids (IL) in the preparation and immobilization of Burkholderia cepacia lipase, using a hybrid support of poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) and silica. The results showed that the use of IL significantly increased the immobilization yield of the lipase and caused changes in the morphological structure of the hybrid support. Transesterification reactions using the immobilized lipase showed high conversion rates under specific conditions.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Energy & Fuels
Milena de Santana Santos, Roger Frety, Luciana Lisi, Stefano Cimino, Soraia Teixeira Brandao
Summary: Perovskite oxides LaNi1-xCoxO3 (x = 0.0; 0.2; 0.5; 1.0) were studied in chemical looping combustion of methane. Nickel substitution for cobalt decreased active oxygen, while cobalt insertion improved re-oxidation rates and reduced coke deposits. The best CLC sample in the series was found to be LaNi0.5Co0.5O3 due to its faster complete reduction and resistance to coke formation.
Review
Engineering, Chemical
Katilla M. C. Santos, Tamires R. Menezes, Marilia R. Oliveira, Thauane S. L. Silva, Klebson S. Santos, Vinicius A. Barros, Darley C. Melo, Andre L. Ramos, Cesar C. Santana, Elton Franceschi, Claudio Dariva, Silvia M. Egues, Gustavo R. Borges, Juliana F. De Conto
Summary: The production of natural gas has significantly increased due to the discovery of large reserves in unconventional reservoirs, making it a crucial component of the world's nonrenewable energy matrix that has seen the most growth in the last decade. In Brazil, the pre-salt layer reserves account for 47% of total natural gas production until 2020. However, there are technological challenges to overcome, particularly in developing more efficient strategies for gas conditioning and transport, including the removal of water in the gas stream.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Debora Carvalho de Lira Lima, Isleide Pereira Lemos, Ruan Silveira Gomes, Lilian Maria Tosta Simplicio Rodrigues, Roger Thomas Frety, Carlo Resini, B. S. Junior Roberto, Soraia Teixeira Brandao
Summary: This study synthesized LaNi1-xCoxO3 materials with different ratios and investigated their catalytic performance in dry reforming of methane (DRM). The substitution of Ni by Co resulted in a decrease in catalytic performances, indicating the crucial role of Ni in the catalytic activity. CO2 conversion was consistently higher than CH4 conversion during the DRM process. Carbon-based deposits and the formation of La-oxycarbonates were observed on the catalyst surface.
Article
Chemistry, Multidisciplinary
Roberta M. Santos, Diego F. Bispo, Honnara S. Granja, Eliana M. Sussuchi, Andri Luis D. Ramos, Lisiane S. Freitas
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2020)
Article
Energy & Fuels
Yingna Du, Chen Huang, Wei Jiang, Qiangwei Yan, Yongfei Li, Gang Chen
Summary: In this study, anionic surfactants modified hydrotalcite was used as a flow improver for crude oil under low-temperature conditions. The modified hydrotalcite showed a significant viscosity reduction effect on crude oil. The mechanism of the modified hydrotalcite on viscosity and pour point of crude oil was explored through characterization and analysis of the modified hydrotalcite and oil samples.
Article
Energy & Fuels
Mohammad Saeid Rostami, Mohammad Mehdi Khodaei
Summary: In this study, a hybrid structure, MIL-53(Al)@MWCNT, was synthesized by combining MIL-53(Al) particles and -COOH functionalized multi-walled carbon nanotube (MWCNT). The hybrid structure was then embedded in a polyethersulfone (PES) polymer matrix to prepare a mixed matrix membrane (MMM) for CO2/CH4 and CO2/N2 separation. The addition of MWCNTs prevented MIL-53(Al) aggregation, improved membrane mechanical properties, and enhanced gas separation efficiency.
Article
Energy & Fuels
Yunlong Li, Desheng Huang, Xiaomeng Dong, Daoyong Yang
Summary: This study develops theoretical and experimental techniques to determine the phase behavior and physical properties of DME/flue gas/water/heavy oil systems. Eight constant composition expansion (CCE) tests are conducted to obtain new experimental data. A thermodynamic model is used to accurately predict saturation pressure and swelling factors, as well as the phase boundaries of N2/heavy oil systems and DME/CO2/heavy oil systems, with high accuracy.
Article
Energy & Fuels
Morteza Afkhamipour, Ebad Seifi, Arash Esmaeili, Mohammad Shamsi, Tohid N. Borhani
Summary: Non-conventional amines are being researched worldwide to overcome the limitations of traditional amines like MEA and MDEA. Adequate process and thermodynamic models are crucial for understanding the applicability and performance of these amines in CO2 absorption, but studies on process modeling for these amines are limited. This study used rate-based modeling and Deshmukh-Mather method to model CO2 absorption by DETA solution in a packed column, validated the model with experimental data, and conducted a sensitivity analysis of mass transfer correlations. The study also compared the CO2 absorption efficiency of DETA solution with an ionic solvent [bmim]-[PF6] and highlighted the importance of finding optimum operational parameters for maximum absorption efficiency.
Article
Energy & Fuels
Arastoo Abdi, Mohamad Awarke, M. Reza Malayeri, Masoud Riazi
Summary: The utilization of smart water in EOR operations has gained attention, but more research is needed to understand the complex mechanisms involved. This study investigated the interfacial tension between smart water and crude oil, considering factors such as salt, pH, asphaltene type, and aged smart water. The results revealed that the hydration of ions in smart water plays a key role in its efficacy, with acidic and basic asphaltene acting as intrinsic surfactants. The pH also influenced the interfacial tension, and the aged smart water's interaction with crude oil depended on asphaltene type, salt, and salinity.
Article
Energy & Fuels
Dongao Zhu, Kun Zhu, Lixian Xu, Haiyan Huang, Jing He, Wenshuai Zhu, Huaming Li, Wei Jiang
Summary: In this study, cobalt-based metal-organic frameworks (Co-based MOFs) were used as supports and co-catalysts to confine the NHPI catalyst, solving the leaching issue. The NHPI@Co-MOF with carboxyl groups exhibited stronger acidity and facilitated the generation of active oxygen radicals O2•, resulting in enhanced catalytic activity. This research provides valuable insights into the selection of suitable organic linkers and broadens the research horizon of MOF hybrids in efficient oxidative desulfurization (ODS) applications.
Article
Energy & Fuels
Edwin G. Hoyos, Gloria Amo-Duodu, U. Gulsum Kiral, Laura Vargas-Estrada, Raquel Lebrero, Rail Munoz
Summary: This study investigated the impact of carbon-coated zero-valent nanoparticle concentration on photosynthetic biogas upgrading. The addition of nanoparticles significantly increased microalgae productivity and enhanced nitrogen and phosphorus assimilation. The presence of nanoparticles also improved the quality of biomethane produced.
Article
Energy & Fuels
Yao Xiao, Asma Leghari, Linfeng Liu, Fangchao Yu, Ming Gao, Lu Ding, Yu Yang, Xueli Chen, Xiaoyu Yan, Fuchen Wang
Summary: Iron is added as a flocculant in wastewater treatment and the hydrothermal carbonization (HTC) of sludge produces wastewater containing Fe. This study investigates the effect of aqueous phase (AP) recycling on hydrochar properties, iron evolution and environmental assessment during HTC of sludge. The results show that AP recycling process improves the dewatering performance of hydrochar and facilitates the recovery of Fe from the liquid phase.
Article
Energy & Fuels
He Liang, Tao Wang, Zhenmin Luo, Jianliang Yu, Weizhai Yi, Fangming Cheng, Jingyu Zhao, Xingqing Yan, Jun Deng, Jihao Shi
Summary: This study investigated the influence of inhibitors (carbon dioxide, nitrogen, and heptafluoropropane) on the lower flammability limit of hydrogen and determined the critical inhibitory concentration needed for complete suppression. The impact of inhibitors on explosive characteristics was evaluated, and the inhibitory mechanism was analyzed with chemical kinetics. The results showed that with the increase of inhibitor quantity, the lower flammability limit of hydrogen also increased. The research findings can contribute to the safe utilization of hydrogen energy.
Article
Energy & Fuels
Zonghui Liu, Zhongze Zhang, Yali Zhou, Ziling Wang, Mingyang Du, Zhe Wen, Bing Yan, Qingxiang Ma, Na Liu, Bing Xue
Summary: In this study, high-performance solid catalysts based on phosphotungstic acid (HPW) supported on Zr-SBA-15 were synthesized and evaluated for the one-pot conversion of furfural (FUR) to γ-valerolactone (GVL). The catalysts were characterized using various techniques, and the ratio of HPW and Zr was found to significantly affect the selectivity of GVL. The HPW/Zr-SBA-15 (2-4-15) catalyst exhibited the highest GVL yield (83%) under optimized reaction conditions, and it was determined that a balance between Bronsted acid sites (BAS) and Lewis acid sites (LAS) was crucial for achieving higher catalytic performance. The reaction parameters and catalyst stability were also investigated.
Article
Energy & Fuels
Michael Stoehr, Stephan Ruoff, Bastian Rauch, Wolfgang Meier, Patrick Le Clercq
Summary: As part of the global energy transition, an experimental study was conducted to understand the effects of different fuel properties on droplet vaporization for various conventional and alternative fuels. The study utilized a flow channel to measure the evolution of droplet diameters over time and distance. The results revealed the temperature-dependent effects of physical properties, such as boiling point, liquid density, and enthalpy of vaporization, and showed the complex interactions of preferential vaporization and temperature-dependent influences of physical properties for multi-component fuels.
Article
Energy & Fuels
Yuan Zhuang, Ruikang Wu, Xinyan Wang, Rui Zhai, Changyong Gao
Summary: Through experimental validation and optimization of the chemical kinetic model, it was found that methanol can accelerate the oxidation reaction of ammonia, and methanol can be rapidly oxidized at high concentration. HO2 was found to generate a significant amount of OH radicals, facilitating the oxidation of methanol and ammonia. Rating: 7.5/10.
Article
Energy & Fuels
Radwan M. EL-Zohairy, Ahmed S. Attia, A. S. Huzayyin, Ahmed I. EL-Seesy
Summary: This paper presents a lab-scale experimental study on the impact of diethyl ether (DEE) as an additive to waste cooking oil biodiesel with Jet A-1 on combustion and emission features of a swirl-stabilized premixed flame. The addition of DEE to biodiesel significantly affects the flame temperature distribution and emissions. The W20D20 blend of DEE, biodiesel, and Jet A-1 shows similar flame temperature distribution to Jet A-1 and significantly reduces UHC, CO, and NOx emissions compared to Jet A-1.
Article
Energy & Fuels
Jiang Bian, Ziyuan Zhao, Yang Liu, Ran Cheng, Xuerui Zang, Xuewen Cao
Summary: This study presents a novel method for ammonia separation using supersonic flow and develops a mathematical model to investigate the condensation phenomenon. The results demonstrate that the L-P nucleation model accurately characterizes the nucleation process of ammonia at low temperatures. Numerical simulations also show that increasing pressure and concentration can enhance ammonia condensation efficiency.
Article
Energy & Fuels
Shiyuan Pan, Xiaodan Shi, Beibei Dong, Jan Skvaril, Haoran Zhang, Yongtu Liang, Hailong Li
Summary: Integrating CO2 capture with biomass-fired combined heat and power (bio-CHP) plants is a promising method for achieving negative emissions. This study develops a reliable data-driven model based on the Transformer architecture to predict the flowrate and CO2 concentration of flue gas in real time. The model validation shows high prediction accuracy, and the potential impact of meteorological parameters on model accuracy is assessed. The results demonstrate that the Transformer model outperforms other models and using near-infrared spectral data as input features improves the prediction accuracy.