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111 results for “lignin”
Decomposition and lignin content of wooden dowels deployed in a saltmarsh for 3, 5, or 7 years at Goat Island, North Inlet, Georgetown SC, 2017-2024.
Wooden dowels were used to examine organic matter decomposition in saltmarsh soils. Dowels were inserted to a depth of 45cm in control and fertilized marsh plots. They were harvested after 3, 5 or 7 years and sectioned into 5-cm segments. Weight loss of the dowel segments was used to quantify the fate of labile organic matter, while change in lignin content was used to quantify the fate of refractory organic matter.
Dissolved Organic Carbon Stable Isotopes and Lignin Phenols from Everglades National Park (FCE LTER), South Florida, USA, January 2019 - ongoing
Estuarine and coastal waters are home to more than half of the world's population and provide many social and economic benefits to society. Additionally, these ecosystems are sites of intense carbon cycling and are under pressure from changing land uses and climate. DOM is functionally defined as the OM passed through a 0.7 µm borosilicate glass fiber filter (GF/F) and is primarily made up of viruses, bacteria, colloids, lignins, humic substances, organic acids, and other small organic compounds (Repeta, 2015). Approximately 50% of DOM is generally considered to be dissolved organic carbon (DOC) (Stedmon and Nelson, 2015). Thus, DOC can be used as a proxy for quantifying DOM. Whole water samples were collected monthly from three different transects representing marl-dominated (Taylor Slough), peat-dominated (Shark River Slough), and seagrass-dominated (Florida Bay) environments. The water was filtered using 0.7 µm porosity glass fiber filters, then acidified to pH 2 and stored at 4°C until processing occurred. DOC concentration and the stable isotope ratio of DOC (δ13C-DOC) was measured on an OI Analytical TOC analyzer coupled to an Agilent Delta V plus Isotope Ratio Mass Spectrometer using high-temperature combustion (Lalonde et al., 2014). Dissolved vanillyl (vanillin, acetovanillone, vanillin acid), syringyl (syringaldehyde, acetosyringone, syringic acid), cinnamyl (p-coumaric acid, ferulic acid), and 3,5-hydroxybenzoic acid lignin phenols were isolated from ~2 liters of 0.7 µm filtered, acidified (pH 2) water by solid phase extraction (SPE) using 1g PPL cartridges that were pre-conditioned using pH 2 water and methanol. SPE cartridges were extracted using methanol, then dried and redissolved in 2N NaOH. Cupric oxide oxidation and liquid-liquid ethyl acetate extraction were used to extract lignin oxidation products (Hedges and Ertel, 1982, modified by Goñi and Hedges, 1995; Louchouarn et al., 2000; Goñi and Montgomery, 2000; Benner and Kaiser, 2011). Briefly, NaO
Decomposition and lignin content of wooden dowels deployed in a salt- or brackish marsh for 3, 5, or 7 years at the Plum Island Ecosystem LTER site, Rowley MA, 2017-2024.
Wooden dowels were used to examine organic matter decomposition in salt- and brackish marsh soils. Dowels were inserted to a depth of 45cm in control and fertilized marsh plots. They were harvested after 3, 5 or 7 years and sectioned into 5-cm segments. Weight loss of the dowel segments was used to quantify the fate of labile organic matter while change in lignin content was used to quantify the fate of refractory organic matter.
Microbiome homeostasis on rice leaves is regulated by a precursor molecule of lignin biosynthesis
<p>A GWAS pipeline for identification of the loci associated with >3000 bacterial species (Selected from over 6000 bacterial species of rice Phyllosphere).</p><p> </p>
Polyaniline conductive composites with lignin.
<p>This data set corresponds to the analyses carried out in the following article: Arias-Ferreiro, G., Lasagabáster-Latorre, A., Ares-Pernas, A., Ligero, P., García-Garabal, S. M., Dopico-García, M. S., & Abad, M. J. (2022). <br>Lignin as a High-Value Bioaditive in 3D-DLP Printable Acrylic Resins and Polyaniline Conductive Composite. Polymers, 14(19), 4164. <br>DOI:10.3390/polym14194164</p>
Lignin, litter, and soil carbon decomposition from soil samples collected from 20 National Ecological Observatory Network (NEON) sites in 2019
These data support the findings of a manuscript by Huang et al. (2023) published in Nature Communications (doi pending). We used incubations of soil and stable isotope measurements to measure lignin, litter, and SOC decomposition over an 18-month lab incubation and assessed their relationships with geochemical, microbial, N-related and climatic factors across 156 mineral soils collected from 20 National Ecological Observatory Network (NEON) sites, which span broad biophysical gradients (climate, soil, and vegetation type) across North America. The soils were collected in 2019. Lignin decomposition and biogeochemical variables were also measured in an approximately 12-month field incubation.
An exploratory study of consumers' familiarity, attitude, and purchase intentions for lignin-based sunscreens and bio-based skincare products [dataset]
<p>Dataset for <em>An exploratory study of consumers’ familiarity, attitude, and purchase intentions for lignin-based sunscreens and bio-based skincare products.</em></p>
Nutrient controls on carbohydrate and lignin decomposition in beech litter
<p>Raw data for</p> <p>Nutrient controls on carbohydrate and lignin decomposition in beech litter</p> <p>Lukas Kohl, Wolfgang Wanek, Katharina Keiblinger, Ieda Hämmerle, Lucia Fuchslueger, Thomas Schneider, Katharina Riedel, Leo Eberl, Sophie Zechmeister-Boltenstern, Andreas Richter</p> <p>https://doi.org/10.1016/j.geoderma.2022.116276</p>
Photonic crystals with rainbow colors by centrifugation-assisted assembly of colloidal lignin nanoparticles
<p>Source data (CSV files) associated with the publication titled <strong>Photonic crystals with rainbow colors by </strong><strong>centrifugation-assisted assembly </strong><strong>of colloidal lignin nanoparticles</strong>.</p>
Respiration, isotope composition, and carbon source partitioning from incubations of soil amended with litter and isotope-labeled lignin
We incubated 10 forest soils (collected from sites across North America, including the Luquillo LTER/CZO) in the laboratory for over two years to quantify the decomposition of carbon derived from added litter and lignin, as well as from extant soil organic matter. Each soil was subjected to two substrate addition treatments: a) litter derived from a C4 grass precipitated with 13C-enriched lignin, or the same C4 grass litter was precipitated with natural-abundance lignin. The concentrations and delta13C composition of carbon dioxide produced from each soil were measured periodically over time and partitioned into sources (soil organic matter, litter, and added lignin) using isotope mixing models. The methods and results are described in detail by a manuscript in Ecology (Hall et al., 2020).
Biobased Structurally Compatible Polymer Blends Based on Lignin and Thermoplastic Elastomer Polyurethane as Carbon Fiber Precursors
<p>The production of carbon fibers based on lignin reduces the cost and the environmental impact associated with carbon fiber manufacturing. However, the melt processing of lignin as a carbon fiber precursor is challenging due to its brittleness and limited thermoplastic behavior. For this reason we produce biopolymer blends based on Alcell organosolv hardwood lignin, hydroxypropyl modified Kraft hardwood, and a thermoplastic elastomer polyurethane (TPU). Samples with TPU content greater than 30% showed excellent melt processability and carbonization yield (35% carbon yield for the samples containing 30% of TPU). The thermal properties were analyzed by differential scanning calorimetry, rheology and thermogravimetric analysis. Fourier infrared measurements were utilized to explain the lignin/TPU interactions which governed the thermal and rheological behavior of the blends. SEM analysis showed that the blends produce a homogeneous structure which was void free after carbonization. These structurally complementary biopolymeric blends should open up new avenues for lignin valorization and bring closer the realization of the production of carbon fibers from biosources.</p>
Bio‐derived Carbon Nanofibres from Lignin as High‐Performance Li‐Ion Anode Materials
<p>Development of cost‐effective and increasingly efficient sustainable materials for energy‐storage devices, such Li‐ion batteries, is of crucial future importance. Herein, the preparation of carbon nanofibres from biopolymer blends of lignin (byproduct from the paper and pulp industry) and polylactic acid (PLA) or a thermoplastic elastomeric polyurethane (TPU) is described. SEM analysis shows the evolving microstructural morphology after each processing step (electrospinning, stabilisation and carbonisation). Importantly, it is possible to tailor the nanofibre porosity by utilising miscibility/immiscibility rules between lignin and the polymer additive (PLA/TPU). PLA blends (immiscible) generate porous structures whereas miscible lignin/TPU blends are solid when carbonised. Electrodes produced from 50 % PLA blends have capacity values of 611 mAh g<sup>−1</sup> after 500 charge/discharge cycles, the highest reported to date for sustainable electrodes for Li‐ion batteries. Thus, this work will promote the development of lignocellulose waste materials as high‐performance energy‐storage materials.</p>
Input Data for "Molecular Lignin Solubility and Structure in Organic Solvents"
<p>Input structures for a manuscript, along with selected output data and structures. This directory structure contains a cut-down copy of the directories used to generate the simulation data and the analysis. In order to make this fit into the 50GB Zenodo limit, it was constructed with the following tar command: `tar -zcvf ligninsolvationstudy.tar.gz --exclude="*BAK" --exclude="*#" --exclude="*xtc" --exclude="*gro" --exclude="*log" --exclude="*[0-9].out" --exclude="*npz" --exclude="*pkl" --exclude="*npy" --exclude="*png" --exclude="*bmim*" --exclude="*old" --exclude="*dcd" --exclude="*tmp" --exclude="*xst" --exclude="*edr" --exclude="*txt" --exclude="*state_prev.cpt" LigninSolvation`, which intentionally excludes large files. The full dataset is available upon request.</p> <p><strong>Directory Descriptions</strong></p> <p><strong>BuildSolventBoxes</strong> contains the scripts and inputs needed to make the solvent boxes suitable for use with the VMD solvate plugin.<br> <strong>BuildSystems</strong> assembles the lignin polymers and solvates them into a complete simulation system. Depends on the outputs from [LigninBuilder](https://github.com/jvermaas/LigninBuilder).<br> <strong>Equilibrium</strong> has all the equilibrium trajectories and the scripts needed to set them up.<br> <strong>FEP</strong> has the free energy perturbation calculation key outputs (the fepout files) and the scripts needed to set up the calculation and analyze them.</p> <p>The scripts are <em>mostly</em> python scripts, but some are also in tcl, and have the appropriate file endings. GROMACS run input files (.tpr) and namd configuration files (.namd) may also be of general interest.</p>
Lignin biorefinery experimental optimization using BOSS
<p>This dataset was employed in the manuscript:</p> <p> [1] Löfgren J, Tarasov D, Koitto T, Rinke P, Balakshin M, Todorović M.<br> Machine Learning Optimization of Lignin Properties in Green Biorefineries.<br> ChemRxiv. Cambridge: Cambridge Open Engage; 2022.</p> <p>This dataset contains the results of optimizing the green AquaSolv Omni biorefinery concept using the Bayesian optimization code BOSS. The input data represents the experimental processing conditions for each sample, namely the reactor temperature and P-factor (reaction severity). For each sample, the lignin yield was measured and the number of ß-O-4 linkages, ratio of syringyl and guaiacyl units, and total carbohydrate content were quantified using a 2D NMR HSQC method. The lignin yield is given in weight percent of the original biomass and the NMR-quantified moieties are measured in terms of number of units per 100 aromatic (Ar) units.</p> <p>The data found in this record comes in two different versions: one for the Combined Acquisitions (CA) and one for the Pure Acquisitions (PA) strategy described in [1]. For each strategy, there is one data file for the training data and one for the test data.</p> <p>For additional details on the experimental processing and Bayesian optimization, please refer to [1].</p>
Supplementary material from: Wolz D, Seidel-Greiff R, Behnisch T, Kruppke I, Kuznik I, Bertram P, Jäger H, Gude M, Cherif C (2024) Potentials of Polyacrylonitrile Substitution by Lignin for Continuous Manufactured Lignin/Polyacrylonitrile-Blend-Based Carbon Fibers
<p>This material contains all research data concerning the analyses conducted in the work taht was published as "<strong>Potentials of Polyacrylonitrile Substitution by Lignin for Continuous Manufactured Lignin/Polyacrylonitrile-Blend-Based Carbon Fibers</strong>" in the <strong>MDPI</strong> journal <strong>Fibers.</strong></p> <p>Process data cannot be included for reasons of confidentiality.</p>
Fabrication, Characterization and Evaluation of an Alginate–Lignin Composite for Rare-Earth Elements Recovery
<p>This dataset contains the raw data for the publication "Fabrication, Characterization and Evaluation of an Alginate–Lignin Composite for Rare-Earth Elements Recovery" by Fila et al, published in Materials. The upload includes raw data of physicochemical characterizations of alginate-based composite, i.e. alginate-lignin, including BET, SEM, TG, XPS and XRD analyses. </p>
Fig. 3 in Evaluation of a lignin-encapsulated nootkatone formulation against Tetranychus urticae (Acari: Tetranychidae)
Fig. 3. Mean (± SEM) percent of Tetranychus urticae egg hatch at 7 and 9 d afer treatment with water (control), surfactant control (1 mL per L EZ-Mulse), 1 g per L lignin-encapsulated (LE) nootkatone, or a 1 g per L lignin-encapsulated nootkatone/surfactant mixture on lima bean leaf discs. Treatments within a date with different letters were significantly different (P <0.05), with Tukey's test.
Fig. 2 in Evaluation of a lignin-encapsulated nootkatone formulation against Tetranychus urticae (Acari: Tetranychidae)
Fig. 2. Percent (± SEM) inactive Tetranychus urticae adults on leaf discs treat- ed with lignin-encapsulated (LE) nootkatone: (A) 1 g per L lignin-encapsulated nootkatone solution (webbing not present); (B) 1 g per L and 2 g per L ligninencapsulated nootkatone solution (webbing present); (C) 1 g per L lignin-encapsulated nootkatone + 0.1% carvacrol solution (webbing present). Treatment means at 48 h with different letters were significantly different (P <0.05), with Tukey's test.
Fig. 1 in Evaluation of a lignin-encapsulated nootkatone formulation against Tetranychus urticae (Acari: Tetranychidae)
Fig. 1. Choice-test bioassay arena design with parallel treatment filter paper arms and a filter paper bridge.
Data for "Global Riverine Export of Dissolved Lignin Constrained by Hydrology, Geomorphology and Land-Cover"
<p>Dataset for the "Global Riverine Export of Dissolved Lignin Constrained by Hydrology, Geomorphology and Land-Cover". Dataset 01 includes site locations, basin area, dissolved organic carbon (DOC), dissolved lignin concentration and relevant references. Dataset 03 includes mean/discharge-weighted DOC, mean/discharge-weighted dissolved lignin concentrations. Dataset 03 includes geomorphological, climatic, hydrological and land-cover data for the 25 rivers. Dataset 04 includes the reconstructed yield of dissolved lignin and basin area of the 79 rivers.</p>
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