Article
Biochemistry & Molecular Biology
Lili Zhen, Heiko Lange, Claudia Crestini
Summary: Both condensed and hydrolysable tannins are versatile natural polyphenolic structures with various activities that can be used in different fields. Researchers have analyzed a selection of commercially available tannins for their structural features and purity using a combination of analytical techniques, ensuring the accuracy of the claimed features.
Article
Green & Sustainable Science & Technology
Tao Lang, Ping Xiang, Mingdang Li, Zhiteng Chen, Fenglan Li, Mingguo Jiang, Haichao Zhou
Summary: This study analyzed the chemical structures of tannins from mangrove plants using various extraction and purification methods. The results showed the influence of different methods on the characteristics of the tannins. The study identified the best methods for extracting and purifying tannins, providing accurate structural information for future research on mangrove tannins.
Article
Forestry
Emanuele Cesprini, Alberto De Iseppi, Samuele Giovando, Elisa Tarabra, Michela Zanetti, Primoz Sket, Matteo Marangon, Gianluca Tondi
Summary: In this study, cherry wood was chemically analyzed to determine its composition and characteristics. The analysis showed that cherry extract has a low phenolic content, mainly consisting of pyrogallic flavonoids and polysaccharides.
WOOD SCIENCE AND TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Muhammad Ramzan, Ali Raza, Zaib Un Nisa, Syed Ghulam Musharraf
Summary: The continuous development of resistance to antibiotic drugs by microorganisms causes high mortality and morbidity. Pathogens with distinct features and biochemical abilities make them destructive to human health. Therefore, early identification of the pathogen is of substantial importance for quick ailments and healthcare outcomes. Several advanced spectroscopic techniques have been utilized for the identification of microorganisms, particularly bacteria, in research studies conducted in the last five years. Among these techniques, mass spectrometry (MS), infrared (IR) spectroscopy, Raman spectroscopy (RS), and nuclear magnetic resonance (NMR) spectroscopy have been widely used. MALDI-TOF/MS, a type of MS technique, has been particularly favored for microbial identification. The review discusses the identification of 44 bacteria using these techniques, with the most studied organisms being E. coli, S. aureus, and other microorganisms.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Agricultural Engineering
Armel Edwige Mewoli, Cesar Segovia, Abel Emmanuel Njom, Fabien Betene Ebanda, Jean Jalin Eyinga Biwole, Xinyi Chen, Atangana Ateba, Pierre Girods, Antonio Pizzi, Nicolas Brosse
Summary: The new biocomposites bonded with extracted Aningeria altissima tannin showed high water sensitivity and improved thermal stability and mechanical properties with the incorporation of Triumfetta cordifolia natural fibers. The biocomposite with the optimum properties was obtained from fibers bonded with hexamine-cured tannin resin.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Plant Sciences
Shu-Xi Jing, Yvette Alania, Mariana Reis, James B. McAlpine, Shao-Nong Chen, Ana K. Bedran-Russo, Guido F. Pauli
Summary: This study investigated the interaction between PAC oligomers and dentin, and found that aesculitannin E is the most potent PAC compound known to date for enhancing the mechanical properties of dentin.
JOURNAL OF NATURAL PRODUCTS
(2022)
Article
Forestry
Jorge Santos, Danilo Escobar-Avello, Cecilia Fuentealba, Gustavo Cabrera-Barjas, Julia Gonzalez-Alvarez, Jorge M. Martins, Luisa H. Carvalho
Summary: One of the most important by-products in the Chilean forestry industry is the bark obtained during the debarking process. The bark of Pinus radiata is a potential source of extracts rich in condensed tannins, while the bark of Eucalyptus globulus has extracts rich in hydrolyzable tannins. This study investigates the potential joint valorization of these by-products and demonstrates the potential application of the extracts in bioadhesive formulation.
Article
Biochemistry & Molecular Biology
Liangliang Zhang, He Zhang, Lihua Tang, Xinyu Hu, Man Xu
Summary: The characteristics and metal-binding capacity of polymeric condensed tannins from plum fruit were studied. The results showed that these tannins have strong antioxidant activity comparable to a synthetic antioxidant. Additionally, a simple UV-Vis spectra method was developed to determine the protein-precipitating capacity of tannins.
Article
Polymer Science
Elham Azadeh, Ummi Hani Abdullah, Nurul Basirah Md Ali, Antonio Pizzi, Christine Gerardin-Charbonnier, Philippe Gerardin, Wan Sarah Samiun, Siti Efliza Ashari
Summary: Tannin-furanic foams with decreased surface friability and improved water repellence were prepared by esterifying a polyflavonoid tannin extract with palmitic acid, oleic acid, or lauric acid.
Article
Biochemistry & Molecular Biology
Rosaria Ornella Bua, Angela Messina, Luisa Sturiale, Rita Barone, Domenico Garozzo, Angelo Palmigiano
Summary: The study aimed to explore the human RBC N-glycome using high-sensitivity MALDI-MS techniques to outline a fingerprint of RBC N-glycans, revealing the predominant occurrence of neutral and sialylated complex N-glycans with different blood types. The presence of glycans bearing ABO(H) antigens allowed for the definition of a distinctive spectrum for each blood group, showcasing the potential for early detection of glycome changes associated with disease conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Agriculture, Multidisciplinary
Igor Moreira, Jessica Costa, Leonardo Vilela, Nelson Lima, Cledir Santos, Rosane Schwan
Summary: This study evaluated the impact of different starter cultures on the fermentation of different cocoa hybrids, showing that co-culturing S. cerevisiae and P. kluyveri can lead to the production of sweeter and more preferred chocolates. Analysis of volatile organic compounds (VOCs) and protein profiles during fermentation revealed significant changes, indicating the influence of microbial cultures on chocolate sensory characteristics. Further research is needed to understand the dynamics of protein degradation during inoculated fermentations.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2021)
Article
Biochemistry & Molecular Biology
Adam Choma, Zbigniew Kaczynski, Iwona Komaniecka, Anita Swatek, Katarzyna Kasperkiewicz, Malgorzata Pawlik, Zofia Piotrowska-Seget
Summary: The O-specific polysaccharide (OPS) was isolated from the lipopolysaccharide of Pseudomonas sp. Strain L1, an endophytic bacteria found in Lolium perenne plants in an industrial area in Southern Poland. Chemical methods, mass spectrometry, and NMR spectroscopy were used to study the structure of the high-molecular-weight O-PS fraction. It was found to consist of tetra-saccharide units composed of specific residues.
CARBOHYDRATE RESEARCH
(2023)
Article
Microbiology
Ehsan Asghari, Annika Kiel, Bernhard Peter Kaltschmidt, Martin Wortmann, Nadine Schmidt, Bruno Huesgen, Andreas Huetten, Cornelius Knabbe, Christian Kaltschmidt, Barbara Kaltschmidt
Summary: New ecological trends and changes in consumer behavior are leading to increased biofilm formation in household appliances, creating a demand for new antimicrobial materials and surfaces. Laboratory-cultivated biofilms identified bacterial strains using MALDI-TOF-MS and analyzed the main genera found in these habitats, such as Staphylococci and pseudomonads, offering better understanding of biofilm formation mechanisms.
Article
Food Science & Technology
Farhana Sharmin, Tomoyuki Koyama, Hiroki Koyama, Shoichiro Ishizaki
Summary: Steroidal glycosides, the predominant metabolites of starfish, exhibit various biological activities, including a self-defense mechanism. The ability of cholesterol-binding in different starfish species was evaluated, with Asterias amurensis showing the highest cholesterol-binding ability attributed to thornasteroside A. This discovery not only has implications for the utilization of starfish, but also for food and pharmaceutical research.
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
(2021)
Article
Polymer Science
Giuseppe Impallomeni, Placido Giuseppe Mineo, Fabiana Vento, Alberto Ballistreri
Summary: Biodegradable polymers are widely used in biomedical devices such as implants and drug delivery systems. Researchers successfully conjugated a non-steroidal anti-inflammatory drug with a polymer to improve drug delivery.
POLYMER INTERNATIONAL
(2021)
Article
Polymer Science
Alejandro Torres-Rodriguez, Luc Averous, Eric Pollet, Gerardo de Jesus Sosa-Santillan, Alejandro Zugasti-Cruz, Crystel Aleyvick Sierra-Rivera, Nancy Veronica Perez-Aguilar, Marco Antonio Garcia-Lobato, Ernesto Oyervides-Munoz
Summary: Three novel polyaspartate derivatives with antibacterial properties and low hemolytic effects were synthesized and tested, showing potential as antimicrobial agents.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Review
Chemistry, Multidisciplinary
Agathe Mouren, Luc Averous
Summary: Polyurethanes are a versatile polymer family that can be synthesized using sustainable feedstocks to achieve specific properties. Different sustainable building blocks can be used to develop polyurethanes with various characteristics such as rigidity, flexibility, and transparency. This review provides an overview of the synthesis of sustainable polyurethanes using renewable products and discusses their applications in fields such as building, transportation, packaging, and biomedicine.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Matteo Andrea Lucherelli, Antoine Duval, Luc Averous
Summary: This study reports the synthesis of novel dually crosslinked covalent adaptable networks (CAN) using a single biobased building block, 2,5-furandicarboxaldehyde (FDC), to obtain dynamic associative imine linkages and dissociative Diels-Alder adducts. The linear polyimine based on FDC showed fast coupling with maleimides in Diels-Alder reactions, leading to the rapid formation of polymer networks. The resulting sustainable polymer systems exhibited behavior intermediate to vitrimers and dissociative CANs, with tunable mechanical behavior and excellent reprocessability.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Correction
Polymer Science
Antoine Duval, Alexandru Sarbu, Florent Dalmas, David Albertini, Luc Averous
Article
Chemistry, Multidisciplinary
L. Polo Fonseca, A. Duval, E. Luna, M. Ximenis, S. De Meester, L. Averous, H. Sardon
Summary: Polyurethanes (PUs) are widely used polymers with various applications, but they generate long-lasting and potentially polluting waste. This review focuses on the latest advances in chemical and biological recycling routes for PUs, which can potentially recover and reuse monomers for new PUs with identical properties. The importance of using life cycle assessment (LCA) to find sustainable solutions and promote industrial implementation of recycling approaches is also highlighted.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Green & Sustainable Science & Technology
Lisa Sougrati, Sophie Wendels, Sorina Dinescu, Liliana-Roxana Balahura (Stamat), Lea Sleiman, Luc Averous
Summary: In this study, sustainable macromolecular architectures were designed and tested to synthesize fully biobased polyfunctional NCO terminated prepolymers. Two-component adhesive systems were prepared, and the properties of the resulting biobased polyurethanes were studied, showing good biocompatibility and potential biomedical application.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2023)
Article
Agricultural Engineering
Federico Cerrone, Binbin Zhou, Agathe Mouren, Luc Averous, Stephen Conroy, Jeremy C. Simpson, Kevin E. O'Connor, Tanja Narancic
Summary: Polyhydroxyalkanoates (PHAs) are considered as a potential replacement for petrochemical plastics. This study demonstrates that a metabolically versatile Pseudomonas umsongensis can synthesize a blend of short chain length (scl) and medium chain length (mcl)-PHA. The resulting blend exhibits specific physical and mechanical properties.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Lisa Sougrati, Antoine Duval, Luc Averous
Summary: In the past two decades, covalent adaptable networks (CANs) have emerged as an important class of polymer materials that combine the benefits of thermoplastics and thermosets. These materials can undergo repeated processing cycles by incorporating dynamic covalent bonds within a cross-linked network. By integrating renewable resources, such as lignins, into these innovative systems, sustainable materials can be developed in line with the circular bioeconomy. By modifying lignin into liquid polyols and polyacetoacetates, an innovative strategy was developed to create recyclable lignin-based vinylogous urethane (VU) networks with tunable structures and properties. These biobased aromatic vitrimers exhibited fast stress-relaxations, allowing for easy and fast mechanical reprocessing, and demonstrated healing ability, enhancing their lifecycle and sustainability.
Article
Polymer Science
Alexis Morinval, Luc Averous
Summary: This study developed a thermally responsive network based on reversible Diels-Alder reaction, by chemically modifying AMS and PBAT. It successfully addressed the incompatibility between the two materials, offering potential for developing high-performance materials in the circular bioeconomy.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Polymer Science
Agathe Mouren, Luc Averous
Summary: This study focuses on the synthesis and structure-property relationships of sustainable aromatic TPUs derived from different potential sustainable resources. The presence of aromatic rings enhances phase segregation and improves thermo-mechanical and mechanical properties. Conversely, methoxy groups and the asymmetry of the aromatic diisocyanate hinder the organization of the hard segments, leading to reduced structuration and lower mechanical properties of TPUs.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Polymer Science
Antoine Duval, Luc Averous
Summary: An original segmented thermoplastic polyurethane (TPU) was synthesized with a biobased aromatic chain extender prepared from caffeic acid (EC-diol). The TPU exhibited phase segregation between soft and hard segments, leading to remarkable mechanical and thermal properties. The unique structure of EC-diol allowed for crosslinking through photodimerization under UV irradiation.
Article
Materials Science, Multidisciplinary
Aleksandra Buzarovska, Aida Selaru, Mirela Serban, Gratiela G. Pircalabioru, Marieta Costache, Mariacristina Cocca, Gennaro Gentile, Luc Averous, Sorina Dinescu
Summary: Renewable foams based on blends of thermoplastic polyurethane (TPU) and polylactic acid (PLA) were fabricated and evaluated for their biocompatibility and antibacterial properties for wound dressing applications.
JOURNAL OF MATERIALS SCIENCE
(2023)
