Article
Chemistry, Medicinal
Gil Soo Kim, Jun-Pil Jang, Tae Hoon Oh, Mincheol Kwon, Byeongsan Lee, Jung-Sook Lee, Sung-Kyun Ko, Young-Soo Hong, Jong Seog Ahn, Jae-Hyuk Jang
Summary: Two angucyclines, pseudonocardones D and E, were isolated from Streptomyces sp. KCB15JA151, and their planar structure was elucidated through comprehensive spectroscopic analysis. The absolute configuration of the sugar unit was determined based on various analytical methods. Compound 1 was predicted to be an ER alpha antagonist through computational target prediction and further tests confirmed its antiestrogenic activity.
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Applied
Esun Selvam, Yuqing Luo, Marianthi Ierapetritou, Raul F. Lobo, Dionisios G. Vlachos
Summary: The accumulation of plastic waste in the environment is a significant threat to both the environment and human health. Polyethylene terephthalate (PET), mainly found in single-use plastic bottles, contributes greatly to this waste. Current recycling strategies are not sufficient to address the global plastic waste problem. PET glycolysis shows promise as a depolymerization method, but finding effective and sustainable catalysts, as well as improving energy efficiency, remain challenges. In this study, we use microwave heating in PET glycolysis and identify ZnO as an excellent catalyst. We demonstrate how ZnO's particle size, facet, and hydrogen bonding affect its activity. We also show that ZnO-catalyzed glycolysis achieves high yields of bis(2-hydroxyethyl) terephthalate (BHET) from real-world post-consumer PET waste in less than 10 minutes. Life cycle assessment indicates that BHET produced by ZnO-catalyzed glycolysis has lower global warming potential compared to petrochemical-based production and homogeneously-catalyzed glycolysis.
Article
Agriculture, Dairy & Animal Science
Joohyeong Lee, Eunhye Kim, Seon-Ung Hwang, Lian Cai, Mirae Kim, Hyerin Choi, Dongjin Oh, Eunsong Lee, Sang-Hwan Hyun
Summary: The study showed that treatment with glucuronic acid and N-acetyl-D-glucosamine during porcine oocyte in vitro maturation can enhance oocyte diameter, perivitelline space thickness, reduce reactive oxygen species levels, improve gene expression, and enhance cortical granule reaction. This treatment also led to higher blastocyst rates in both chemically defined and complex media, indicating beneficial effects on early embryonic development after parthenogenesis and somatic cell nuclear transfer.
Article
Engineering, Chemical
Mohammad Rezaee, Shihua Han, Daulet Sagzhanov, Behzad Vaziri Hassas, Tania M. Slawecki, Dinesh Agrawal, Hamid Akbari, Robert Mensah-Biney
Summary: This study investigated the effect of microwave power on phase transformation and leachability of spodumene. The results showed that microwave power has a significant impact on both phase transformation and leachability of spodumene. Microwave heating not only provides a faster and more energy-efficient calcination process, but also results in lower recovery values of certain elements during the leaching process, offering an advantage in downstream purification processes.
Review
Chemistry, Applied
Hao Xu, Hao Li
Summary: This review critically summarizes the potentials and challenges of alcohol-assisted hydrodeoxygenation (HDO) strategy from diverse perspectives including safety, economics, and catalytic efficiency. The alcohol-assisted strategy is divided into combined reforming-HDO route and catalytic transfer hydrogenation/hydrogenolysis (CTH) route based on the discrepancies of in-situ hydrogen generation. Different catalytic behaviors are described and their applications are elaborated in several upgrading processes of representative biomass model compounds, aiming to illustrate the potentials of alcohol-assisted HDO in biomass utilization.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Qiaozhi Zhang, Shuguang Xu, Yang Cao, Roger Ruan, James H. Clark, Changwei Hu, Daniel C. W. Tsang
Summary: This study focuses on the production of two organic acids, gluconic acid (GOA) and glucuronic acid (GUA), from biomass-derived glucose using microwave-assisted catalytic oxidation. It demonstrates that the synthesis conditions of the Cu-based catalysts can be adjusted to improve the yield of the desired products. The study also provides insights into the reaction pathways using density functional theory simulation. These findings are valuable for the design of low-cost and efficient catalysts for glucose oxidation.
Article
Multidisciplinary Sciences
Wioleta Mikucka, Magdalena Zielinska, Katarzyna Bulkowska, Izabela Witonska
Summary: This study investigated the extraction of polyphenols from distillery waste and found that microwave-assisted extraction and ultrasound-assisted extraction were more efficient methods compared to conventional solid-liquid extraction. These methods showed higher yields of polyphenols, increased antioxidant activity, and shorter extraction times. The recovered polyphenols were found to have a significant positive correlation with phenolic acid content.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Environmental
Laura Aguado-Deblas, Rafael Estevez, Marco Russo, Valeria La Parola, Felipa M. Bautista, Maria Luisa Testa
Summary: Sulfonic and propylsulfonic silica-based catalysts were synthesized and used in the acetalization reaction of glycerol under microwave irradiation. The sulfonic materials prepared by hydrothermal grafting showed excellent performance in terms of activity, selectivity and stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Qi Li, Liang Lv, Xudong Zhao, Yong Wang, Yongzhen Wang
Summary: Coal gangue can be used to synthesize an analcime-activated carbon composite, which shows a high surface area and excellent adsorption capacity for Pb2+ in aqueous solution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Microbiology
Raquel Burin, Devendra H. Shah
Summary: Salmonella ingeniously scavenges energy from tyramine and d-glucuronic acid in the host, using specific enzymes to oxidize and hydrolyze these substrates to promote growth. Drugs like phenelzine and amoxapine can inhibit Salmonella growth by targeting these key enzymes.
Review
Chemistry, Multidisciplinary
Xianfeng Yi, Yung-Kang Peng, Wei Chen, Zhiqiang Liu, Anmin Zheng
Summary: Acid catalysis in heterogeneous systems plays a crucial role in various industrial processes, with the performance closely linked to acidic features of the catalysts. Solid-state nuclear magnetic resonance (SSNMR) technique with suitable probe molecules is recognized as a reliable tool to study the structures and properties of acidic sites. This approach provides qualitative and quantitative information on each acidic site, contributing to a deeper understanding of solid acid catalysis.
ACCOUNTS OF CHEMICAL RESEARCH
(2021)
Article
Chemistry, Medicinal
Yijing Wang, Xinyi Li, Jingjing Wei, Xue Zhang, Yongjun Liu
Summary: In this study, the detailed formation mechanism of UDP-apiose and UDP-xylose catalyzed by UAXS was investigated using an enzyme-substrate reactant model and QM/MM calculations. The reaction was found to start from C4-OH oxidation with conformational transformation of the sugar ring. Sugar ring-opening precedes decarboxylation, and keto-enol tautomerization is necessary for ring closure/contraction. Titratable residues steer the reaction by proton transfer, and Thr139 and Tyr105 promote catalysis through hydrogen-bonding interactions. These findings provide valuable insights into the catalysis of the SDR family.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2022)
Article
Polymer Science
Aleksandra Nesic, Maria Valeria De Bonis, Giovanni Dal Poggetto, Gianpaolo Ruocco, Gabriella Santagata
Summary: This study investigates the potential of Sargassum algae as a source of sodium alginate. The authors developed a new eco-sustainable and cost-effective method to extract alginate from organic Sargassum seaweeds. The results show that microwave dynamic pre-treatment followed by alkaline extraction is the most effective way to obtain sodium alginate. The authors also evaluate the applications of the extracted alginate as mulching films for agriculture.
Article
Chemistry, Physical
Poyil Aswathy, Shruti Suriyakumar, Sreelakshmi Anil Kumar, Muhammed Shafeek Oliyantakath Hassan, Vinesh Vijayan, Manikoth M. Shaijumon
Summary: A simple, accelerated, and energy-efficient method for the synthesis of highly crystalline cubic sodium thiophosphate solid electrolyte (Na3PS4) is developed in this study. The electrochemical properties and the interfacial stability of the electrolyte with the metallic sodium anode are thoroughly investigated. The results demonstrate the promising application prospects of the synthesized solid electrolyte in all-solid-state batteries.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Food Science & Technology
Chunyan Zhu, Yunchang Fan, Xiujun Bai
Summary: In this study, a microwave-assisted extraction (MAE) method using polyethylene glycols (PEGs) as extraction solvents was developed for the extraction of carnosic acid (CA) and rosmarinic acid (RA) from Rosmarinus officinalis leaves (ROLs). The optimal extraction conditions were determined as follows: 45% PEG-400, 4.3% phosphoric acid, 20 s microwave irradiation time at 280 W power, and a 10 mg mL(-1) solid-liquid ratio. PEG-400 extract showed stronger DPPH radical scavenging ability compared with butylated hydroxytoluene (BHT). The developed PEG-400 based MAE exhibited the highest extraction ability and fastest extraction rate for CA and RA compared with other extraction methods.
Review
Food Science & Technology
Huimin Guo, Yuqiong Hao, Xiushi Yang, Guixing Ren, Aurore Richel
Summary: This review focuses on the biological properties of quinoa protein hydrolysate and peptides, summarizing the preparation and functional testing methods. The combination of milling fractionation and solvent extraction is recommended for efficient production of quinoa protein. Extensive research has been conducted on the antidiabetic, antihypertensive, anti-inflammatory, and antioxidant activities of quinoa protein hydrolysate using in vitro studies and limited animal models. Additionally, bioinformatics analysis provides a means to explore the potential bioactivity of quinoa protein and peptides. However, further research is needed for industrial production of bioactive quinoa peptides, verification of health benefits in humans, and interpretation of observed effects.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Article
Energy & Fuels
Nguyen Ngoc Thanh Tien, Ngoc Lieu Le, Tran Tien Khoi, Aurore Richel
Summary: The chemical profiles of plants are directly affected by the diversity in growing conditions, maturity, or diseases. This research characterized the chemical constituents of dragon fruit branches harvested from four different sites in Binh Thuan province, Vietnam, at different maturities, seasons, and with or without plant disease. The results showed the influence of season, plant disease, and maturity on the chemical composition of these branches.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Agriculture, Multidisciplinary
Arnaud Segers, Lionel Dumoulin, Rudy Caparros Megido, Nicolas Jacquet, Christine Cartrysse, Paul Malumba Kamba, Jerome Pierreux, Aurore Richel, Christophe Blecker, Frederic Francis
Summary: By evaluating the combined effect of faba bean varieties and climate on crop productivity, seed quality, and Bruchus spp. infestation, researchers have identified a stable and promising faba bean variety for use as a local protein source in the food industry. Annual effects significantly impact field yield and protein production, while varietal effects significantly impact seed protein content and infestation rates. The spring variety Fanfare exhibited the best results over the study periods, while variety was found to be the main parameter impacting bruchid infestations.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Article
Food Science & Technology
Nguyen Ngoc Thanh Tien, Ngoc Lieu Le, Tran Tien Khoi, Aurore Richel
Summary: This research evaluates the physicochemical characteristics of dragon fruit peel pectin extracted using the solvent system of choline chloride-glucose-water and sequential microwave-ultrasound-assisted approach (PC-MUAE), comparing it with commercial pectin and other extraction methods. The results show that PC-MUAE is categorized as high methoxyl pectin and possesses potential characteristics for the food industry.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Chemical
Jingwang Chen, Hongnan Sun, Taihua Mu, Christophe Blecker, Aurore Richel, Gaetan Richard, Nicolas Jacquet, Eric Haubruge, Dorothee Goffin
Summary: It was found that adding gelatin and increasing printing temperature can improve the 3D printability of SPI-based pastes, resulting in more stable structures and tighter connections, thereby enhancing the texture of the food.
JOURNAL OF FOOD ENGINEERING
(2022)
Article
Nutrition & Dietetics
Hongru Zhang, Liwei Qi, Qingshan Shen, Ruiqi Wang, Yujie Guo, Chunhui Zhang, Aurore Richel
Summary: This study investigates the therapeutic effects of bioactive compounds from chicken cartilage food supplements on osteoarthritis. The results show that oral chondroitin sulfate can improve athletic ability and reduce inflammatory cytokine levels in rats with osteoarthritis, indicating its potential as a treatment option.
FRONTIERS IN NUTRITION
(2022)
Article
Multidisciplinary Sciences
Lena Jeannerod, Archibald Carlier, Bertrand Schatz, Clothilde Daise, Aurore Richel, Yannick Agnan, Mathilde Baude, Anne-Laure Jacquemart
Summary: Pollen provides essential nutrients for pollinators, but the amino acid profiles and contents in pollen can vary among plant families and chromatography methods. Some plant species offer high nutritional quality pollen, while others may lack certain essential amino acids. The choice of chromatography method can also affect the measured amino acid contents. These differences in pollen nutritional quality may impact the foraging behavior of pollinators.
Article
Energy & Fuels
Ajaikumar Samikannu, Jyri-Pekka Mikkola, Alina Tirsoaga, Vlad Tofan, Radu Claudiu Fierascu, Aurore Richel, Marian Nicolae Verziu
Summary: This study investigated the one-pot depolymerisation of formic acid lignin (FAL) and ammonia lignin (AL) extracted from Miscanthus plants using Ni- and/or Nb-doped SBA-15 as catalysts. The addition of Nb into the SBA-15 structure increased the acidity and promoted the selective cleavage of β-O-4 linkages in AL. The catalytic performance and stability of Ni-Nb-SBA-15 were influenced by the chemical composition of the lignin samples extracted from Miscanthus plants.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Multidisciplinary
Sergio Martinez-Villarreal, Maroua Kammoun, Aurore Richel
Summary: Synthetic fuels are crucial for the environmental transition in transportation, and their viability is closely linked to the availability and impact of hydrogen as a source. This review highlights the role of hydrogen in producing synthetic fuels from renewable resources like plant biomass and microalgae.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Hongru Zhang, Liwei Qi, Xiaodan Wang, Yujie Guo, Jiqian Liu, Yang Xu, Chengjiang Liu, Chunhui Zhang, Aurore Richel
Summary: This study successfully prepared a cattle bone-derived collagen peptide-calcium chelate using the ultrasound method and characterized its structure, stability, and bioactivity on MC3T3-E1 cells. The chelate showed good calcium-chelating ability and stability, and it enhanced osteoblast proliferation and mineralization.
Article
Chemistry, Applied
Shunshun Zhu, Hongnan Sun, Taihua Mu, Qiang Li, Aurore Richel
Summary: This study aimed to realize high value utilization of purple sweet potato peels by extracting anthocyanins and preparing cellulose nanocrystals (CNCs) using ultrasound-assisted methods. The results showed promising potential for the industrialization of CNCs.
Article
Chemistry, Applied
Simin Fan, Debao Wang, Xiangyuan Wen, Xin Li, Fei Fang, Aurore Richel, Naiyu Xiao, Marie-Laure Fauconnier, Chengli Hou, Dequan Zhang
Summary: In this research, chitosan/gelatin complex films were incorporated with cinnamon essential oil (CEO) loaded Pickering emulsion. The effects of different contents of CEO-loaded Pickering emulsion on the microstructure, physicochemical, mechanical, barrier, and antimicrobial properties of the biobased packaging films were evaluated. The CEO-loaded Pickering emulsion, prepared with zein nanoparticles as a stabilizer, showed compatibility with the CS/GEL matrix and significantly improved the mechanical and barrier properties of the films. Furthermore, the CEO-loaded Pickering emulsion exhibited high antimicrobial activity against Pseudomonad paralactis MN10 and Lactobacillus sakei VMR17 with slow-release behavior of CEO.
FOOD HYDROCOLLOIDS
(2023)
Article
Chemistry, Applied
Xin Fan, Huimin Guo, Aurore Richel, Lizhen Zhang, Chenghong Liu, Peiyou Qin, Christophe Blecker, Guixing Ren
Summary: This study established a convenient and efficient method for producing plant-based peptides with decent gel-forming ability from quinoa proteins. The hydrogels made from quinoa protein hydrolysis exhibited potent self-assembly capacity, enhanced gel hardness, and improved rheological properties. The amino acid composition and sequence of quinoa peptides significantly influenced the formation of self-assembled hydrogels.
FOOD HYDROCOLLOIDS
(2023)
Review
Chemistry, Multidisciplinary
Maroua Kammoun, Antigoni Margellou, Vesislava B. B. Toteva, Anna Aladjadjiyan, Andreai F. F. Sousa, Santiago V. V. Luis, Eduardo Garcia-Verdugo, Konstantinos S. S. Triantafyllidis, Aurore Richel
Summary: Currently, there is a growing interest in the chemical industry for the production of furanic compounds, renewable alternatives to fossil molecules. This review focuses on the conversion potential of European lignocellulosic biomass into furan derivatives and discusses technological approaches for their production with minimum environmental impact. The aim is to bring these chemically furan derivatives into the market within a green European context.
Article
Chemistry, Multidisciplinary
Brieuc Lecart, Chloe Baumsteiger, Florent Monie, Andrea Di Maria, Christophe Detrembleur, Aurore Richel, Herve Vanderschuren
Summary: In this study, suberin was efficiently extracted from barks and peels using supercritical and near-supercritical transesterification without the need for catalysts. The suberinic extracts were found to be useful in non-isocyanate polyurethane foams and in extending the shelf-life of fruits.
Article
Chemistry, Organic
Geeta Devi Yadav, Pooja Chaudhary, Balaram Pani, Surendra Singh
Summary: Chiral transition metal complexes with privileged ligands are efficient catalysts for various asymmetric organic transformations. Transition metal complexes of C1-symmetric pyrrolidine-based ligands have been widely used in asymmetric organic reactions. However, a comprehensive review article on the transition metal complexes of chiral C1-symmetric pyrrolidine-based ligands derived from (L)-proline has not been published.
TETRAHEDRON LETTERS
(2024)
