Article
Environmental Sciences
Lei Wang, Yang Fang, Jun Yin, Xiaohan Li, Jungang Jiang, Yifan Zhang, Haiping Yang
Summary: This study investigated the mechanism of CH4 formation during lignin pyrolysis using in-situ FTIR, 2D-PCIS, and DFT calculation, revealing that the homolytic cleavage of the methoxyl functional group is crucial for CH4 formation. The research established a new methodology to evaluate the CH4 formation mechanism in GS-type lignin at the molecular level, offering insights for lignin valorization and environmental improvement.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Forestry
Jiawei Wang, Eiji Minami, Mohd Asmadi, Haruo Kawamoto
Summary: This study evaluates the effects of ball milling on the thermal degradation reactivities of cedar and beech woods, showing that ball milling affects the structure of lignin and cellulose and the temperature ranges for cellulose degradation in wood cell walls. The role of uronic acid and lignin in the matrix of cell walls is crucial in determining the behavior of wood components during thermal degradation.
JOURNAL OF WOOD SCIENCE
(2021)
Article
Agriculture, Multidisciplinary
Xuhai Zhu, Jussi Sipila, Antje Potthast, Thomas Rosenau, Mikhail Balakshin
Summary: Recent studies have identified significant amounts of various alkyl ether moieties in milled wood lignin (SMWL), which have not been fully characterized. This study used experimental NMR data and computer simulation to analyze the different types of alkyl ether structures in SMWL. Specific regions in the HSQC spectrum were attributed to different alkyl ether moieties, but the differences were subtle and difficult to separate from other lignin moieties. Additionally, the quantification of individual alkyl ether types was challenging, and the study discussed potential formation mechanisms of alkyl ether structures in lignin biosynthesis, aging, and ball milling of wood.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Wen-Yue Wang, Zhao Qin, Hua-Min Liu, Xue-De Wang, Jing-Hao Gao, Guang-Yong Qin
Summary: Subcritical water treatment of Chinese quince fruits was found to increase xylose content and enhance thermal stability and molecular weight of milled wood lignin. NMR analysis revealed the presence of mainly β-O-4' ether bonds and G-S-H units in the lignin structure.
Article
Microbiology
Rana Haidar, Amira Yacoub, Jessica Vallance, Stephane Compant, Livio Antonielli, Ahmad Saad, Birgit Habenstein, Brice Kauffmann, Axelle Grelard, Antoine Loquet, Eleonore Attard, Remy Guyoneaud, Patrice Rey
Summary: The study found that bacteria inhabiting grapevine wood can influence the ability of the fungus Fmed to degrade wood. Some bacteria may have a synergistic interaction with Fmed, enhancing wood degradation. This suggests the possibility of a synergistic interaction between Fmed and certain bacterial strains, promoting grapevine wood degradation.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Engineering, Chemical
Moritz Eisenlauer, Ulrich Teipel
Summary: This study focuses on the impact of different types of mills on the comminution of lignocellulosic biomass and investigates the specific comminution energy and particle properties. The results of the experiments show that the type of mill, moisture content, type of wood, and comminution ratio have significant effects on specific comminution energy.
Article
Materials Science, Paper & Wood
Ramunas Digaitis, Emil E. Thybring, Lisbeth G. Thygesen, Maria Fredriksson
Summary: The study demonstrated a refined chemical modification method to improve the durability of wood in outdoor environments and control the spatial distribution of acetylation in different parts of the wood structure. This targeted acetylation procedure allowed independent alteration of wood-water interactions inside and outside of cell walls, providing a novel approach for studying wood-water interactions in moist environments and how moisture distribution affects susceptibility towards fungal decomposition.
Article
Microbiology
Ehsan Bari, Katie Ohno, Nural Yilgor, Adya P. Singh, Jeffrey J. Morrell, Antonio Pizzi, Mohammad Ali Tajick Ghanbary, Javier Ribera
Summary: The study found that three fungi (Pleurotus ostreatus, P. pulmonarius, and Lentinus sajor-caju) were able to cause greater lignin degradation during decay, leading to reduced refining energy; Trametes versicolor had the most significant glucan loss, while P. ostreatus and L. sajor-caju had the lowest losses; Fourier transform infrared spectroscopy (FTIR) analyses confirmed that white-rot fungi caused greater lignin degradation. In conclusion, P. ostreatus and L. sajor-caju have the greatest potential for biopulping based on lignin and cellulose loss.
Article
Energy & Fuels
E. T. Liakakou, A. Infantes, A. Neumann, B. J. Vreugdenhil
Summary: The integration of gasification with syngas fermentation is in the early stages of development, focusing on defining gasification conditions that provide suitable syngas quality for fermentation. Balancing gasification conditions with minimal gas cleaning needs is crucial to improve economic feasibility.
Article
Chemistry, Multidisciplinary
Ruibo Li, Ryota Ouda, Chihiro Kimura, Ryo Narita, Hiroshi Nishimura, Takashi Fujita, Takashi Watanabe
Summary: This study developed a simple method to convert woody biomass into antiviral substances, which showed strong activity against encephalomyocarditis virus (EMCV). The research provides a green strategy for producing large amounts of antiviral substances from sustainable bioresources.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Polymer Science
Mario J. Rosado, Jorge Rencoret, Ana Gutierrez, Jose C. del Rio
Summary: The lignin structure of orange tree pruning (OTP) residue was examined. The OTP-MWL mainly consisted of guaiacyl (G) units with minor amounts of syringyl (S) and p-hydroxyphenyl (H) units. The lignin contained various linkages, including beta-O-4 ' alkyl-aryl ethers, phenylcoumarans, resinols, dibenzodioxocins, and spirodienones. The presence of condensed linkages makes the lignocellulosic residue more recalcitrant to delignification.
Article
Chemistry, Multidisciplinary
Rosarita D'Orsi, Nicola Di Fidio, Claudia Antonetti, Anna Maria Raspolli Galletti, Alessandra Operamolla
Summary: This study investigated a three-step approach to extract lignin and cellulose, the main components of lignocellulosic cardoon. The defatted biomass was treated with steam explosion and then subjected to an organosolv treatment to extract soluble lignin (L1). Enzymatic hydrolysis was carried out to decompose the saccharidic portion into monosaccharides and isolate residual lignin (L2). The fractions were characterized using advanced techniques and the impact of cellulose-rich fraction composition and crystallinity on enzymatic hydrolysis efficiency was studied.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Biotechnology & Applied Microbiology
Hongli Wu, Takehito Nakazawa, Haibo Xu, Ruiheng Yang, Dapeng Bao, Moriyuki Kawauchi, Masahiro Sakamoto, Yoichi Honda
Summary: P. ostreatus expressed variable enzymatic repertoire-related genes in response to distinct substrates; a demand to upregulate cellulolytic genes seems to be present in ligninolysis-deficient mutants; the regulation of some specific genes probably driven by the demand is dependent on the substrate.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Chemistry, Applied
Alexander Shaw, Xiaolei Zhang, Shuya Jia, Juan Fu, Lin Lang, Robert C. Brown
Summary: The formation mechanism of char from lignin monomers was studied and it was found to occur in a two-step process involving aggregation and ring forming reactions. The generated side products include hydrogen, water, methanol, and formaldehyde. The proposed mechanism provides insights for future research on char formation during biomass thermochemical conversion processes.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Food Science & Technology
Qingqing Hu, Jian Ji, Deping Xu, Yongli Ye, Jiadi Sun, Lina Sheng, Yinzhi Zhang, Xiulan Sun
Summary: This study isolated and identified two novel compounds from P. cuspidatum that have a stronger ability to lower uric acid levels. The structural characterization was done using nuclear magnetic resonance (NMR) spectroscopy, and untargeted metabolomics analysis explored the potential mechanism of uric acid reduction. These findings provide theoretical support for the utilization of P. cuspidatum as a food and medicinal material.
Article
Physiology
David K. Harrison, Mario Fasching, Mona Fontana-Ayoub, Erich Gnaiger
JOURNAL OF APPLIED PHYSIOLOGY
(2015)
Article
Polymer Science
Roger N. Ibbetta, K. Christian Schuster, Mario Fasching
Article
Polymer Science
Roger N. Ibbett, Dimitra Domvoglou, Mario Fasching
Article
Forestry
Stephanie Baumberger, Alfred Abaecherli, Mario Fasching, Goeran Gellerstedt, Richard Gosselink, Bo Hortling, Jiebing Li, Bodo Saake, Ed de Jong
Article
Polymer Science
M Fasching, A Griebl, G Kandioller, A Zieher, H Weber, H Sixta
MACROMOLECULAR SYMPOSIA
(2005)
Article
Biochemistry & Molecular Biology
M Fasching, H Persichinka, C Eichmuller, S Gschosser, B Krautler
CHEMISTRY & BIODIVERSITY
(2005)
Article
Chemistry, Multidisciplinary
B Krautler, W Fieber, S Ostermann, M Fasching, KH Ongania, K Gruber, C Kratky, C Mikl
HELVETICA CHIMICA ACTA
(2003)
Article
Chemistry, Multidisciplinary
M Fasching, W Schmidt, B Krautler, E Stupperich, A Schmidt, C Kratky
HELVETICA CHIMICA ACTA
(2000)
