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163 results for “biodegradability”
Figure 5 in Biodegradation of petroleum by bacteria isolated from fishes of Indian Ocean
Figure 5. (A) GC-MS spectra Control Crude oil (No inoculation); (B) GC-MS spectra Sample crude oil (Inoculated).
Figure 4 in Biodegradation of petroleum by bacteria isolated from fishes of Indian Ocean
Figure 4. Phylogenetic tree showing position of 4 isolated strains. The optimal tree with the sum of branch length = 0.20627849 is shown. The nucleotide sequence used for finding evolutionary relationship was ~ 950 bp. The evolutionary distances were computed using the Maximum Composite Likelihood method and are in the units of the number of base substitutions per site. This analysis involved 16 nucleotide sequences. All ambiguous positions were removed for each sequence pair (pairwise deletion option). There were a total of 844 positions in the final dataset.
Figure 3 in Biodegradation of petroleum by bacteria isolated from fishes of Indian Ocean
Figure 3. Comparison of 24 h LB broth culture (without crude oil) and 10-day MSM culture containing 0.5% crude oil.
Figure 1 in Biodegradation of petroleum by bacteria isolated from fishes of Indian Ocean
Figure 1. Bacterial growth against crude oil on MSA media. The Y axis shows the percentage of crude oil concentration while the X axis shows the number of bacterial isolates survived.
Figure 2 in Biodegradation of petroleum by bacteria isolated from fishes of Indian Ocean
Figure 2. Comparison of 24 h bacterial culture using LB broth containing crude oil and MS broth without crude oil.
Figure 6 in Biodegradation of petroleum by bacteria isolated from fishes of Indian Ocean
Figure 6. (A) GC-MS spectra Control used Engine oil (No inoculation). B. GC-MS spectra Used Engine oil sample (inoculated).
Selected Simple Natural Antimicrobial Terpenoids as Additives to Control Biodegradation of Polyhydroxy Butyrate
<p><strong>Abstract</strong></p> <div>In this experimental research, different types of essential oils (EOs) were blended with polyhydroxybutyrate (PHB) to study the influence of these additives on PHB degradation. The blends were developed by incorporating three terpenoids at two concentrations (1 and 3%). The mineralization rate obtained from CO<sub>2</sub> released from each sample was the factor that defined biodegradation. Furthermore, scanning electron microscope (SEM), differential scanning calorimetry (DSC), and dynamic mechanical analysis (DMA) were used in this research. The biodegradation percentages of PHB blended with 3% of eucalyptol, limonene, and thymol after 226 days were reached 66.4%, 73.3%, and 76.9%, respectively, while the rate for pure PHB was 100% after 198 days, and SEM images proved these results. Mechanical analysis of the samples showed that eucalyptol had the highest resistance level, even before the burial test. The other additives showed excellent mechanical properties although they had less mechanical strength than pure PHB after extrusion. The samples’ mechanical properties improved due to their crystallinity and decreased glass transition temperature (Tg). DSC results showed that blending terpenoids caused a reduction in Tg, which is evident in the DMA results, and a negligible reduction in melting point (Tm).</div> <p> </p> <p><strong>Open access data</strong></p> <p>The datasets for this publication can be accessed using the DOI: 10.5281/zenodo.13829790 or via the zip folder below.</p>
Linked collectors and determiners for: Fungi for wood biodegradation and preservation (IBE-WOOD-BIODECAY).
Natural history specimen data linked to collectors and determiners held within, "Fungi for wood biodegradation and preservation (IBE-WOOD-BIODECAY)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/0b6e46e4-84ff-4552-bf06-92e13975f911">https://bionomia.net/dataset/0b6e46e4-84ff-4552-bf06-92e13975f911</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/0b6e46e4-84ff-4552-bf06-92e13975f911">https://gbif.org/dataset/0b6e46e4-84ff-4552-bf06-92e13975f911</a>. Formatted as a Frictionless Data package.
Dataset for "Biodegradable materials as sensitive coatings for humidity sensing in S-band microwave frequencies"
<p>This dataset contains the data collected during the SNSF BRIDGE GREENsPACK project (Grant no. 40B2-0_187223) in association with the recent publication entitled “Biodegradable materials as sensitive coatings for humidity sensing in S-band microwave frequencies”.</p> <p>This work aims to study the humidity response of eco-friendly materials in the S-band (2-4GHz) using a microstrip line resonating at 3.3GHz. Several sensors coated with different biodegradable materials were tested and simulations have been performed. The S12 signal of the resonator was measured when varying the humidity. The data that was collected in the frame of this work is present in this repository.</p> <p>More information about the content of the dataset is present in the included README file.</p>
Dataset for the paper submitted for peer-review with the title "Quantifying heterotrophic bacteria parameters and dissolved organic carbon biodegradability through oxygen data assimilation in a river water quality model"
<p>The proposed dataset is related to the following article submitted for peer review:</p> <p>Hasanyar, M., Flipo, N., Romary, T., Wang, S. (2023), Quantifying heterotrophic bacteria parameters and dissolved organic carbon biodegradability through oxygen data assimilation in a river water quality model, UNDER PEER-REVIEW</p> <p>It consists of command files for the prose-pa0.74 software available here: https://gitlab.com/prose-pa/prose-pa </p> <p>To run the model :</p> <p>1. Compile prose-pa0.74</p> <p>2. Copy the executable in the current directory</p> <p>3. In a terminal launch</p> <p>> ./prose-pa0.74 simulation.COMM test.log</p> <p>The “simulation.COMM” holds the settings for the ProSe-PA simulation related to the paper mentioned in the front head of the current file. </p> <p>The information on different parameters of “simulation.COMM” are included in “bathymetrie”, “Cmds”, “Inflows”, “layers”, “meteo”, “o2_obs”, “param_bio”, “Reaches” and “Singularities” folders.</p> <p>The “bathymetrie” folder holds the geometric information of several cross-sections along the river. </p> <p>The Cmds folder holds the “simulation.COMM” file. </p> <p>The “Inflows” folder the information about the boundary condition inflows to the river such as discharge, concentration of organic carbon, etc.</p> <p>The layer folder holds data of the initial conditions of the model (Table 2 in the article).</p> <p>The “meteo” folder holds the meteorological information.</p> <p>The “o2_obs” folder holds the observed oxygen data needed to do data assimilation. </p> <p>The “param_bio” folder holds information on the physiology of bacteria, phytoplankton, and other model species.</p> <p>The “Reaches” folder holds information about river reaches and their manning coefficient. </p> <p>The “param_range” file holds the variation range of model parameters considered in data assimilation together with their perturbation percentage.</p> <p>The output files are written in $HOME/Outputs folder. It is possible to change it directly in simulation.COMM, last entry “Output_folder”.</p>
Physical site characteristics for the ARCSS/TK stream dissolved organic carbon biodegradability (2011) data set.
The (ARCSSTK) did extensive research during 2009-2011 field seasons in Arctic Alaska. The objective of this data set was to measure the quantity and biodegradability of DOC from headwater streams and rivers across three geographic regions and across four natural ‘treatments’ (reference; thermokarst-; burned-, and thermokarst + burned-impacted streams) to evaluate which factors most strongly influence DOC quantity and biodegradablity at a watershed scale. This table provides physical site characteristics for the locations sampled for stream water biodegradability.
ARCSS/TK stream dissolved organic carbon biodegradability (2011).
The (ARCSSTK) did extensive research during 2009-2011 field seasons in Arctic Alaska. The objective of this data set was to measure the quantity and biodegradability of DOC from headwater streams and rivers across three geographic regions and across four natural ‘treatments’ (reference; thermokarst-; burned-, and thermokarst + burned-impacted streams) to evaluate which factors most strongly influence DOC quantity and biodegradablity at a watershed scale.
Data from: Impact of agricultural weathering on physicochemical properties of biodegradable plastic mulch films: comparison of two diverse climates over four successive years
<p><span><span><span>Biodegradable plastic mulch films (BDMs) are essential in </span><span><span>the</span></span><span> production of vegetable and specialty crops due to their promotion of increased crop yield and quality. Unlike conventional polyethylene (PE) mulches, BDMs can be tilled into the soil after crop harvest to undergo biodegradation, thereby leading to minimal environmental impact. Agricultural weathering impacts both the performance of BDMs during crop production as a barrier to weeds and biodegradability of BDMs in the soil. To better understand the relative importance of climatic factors, the change of physicochemical properties of BDMs during single-season, 3-4 month, field trials for vegetable production at two diverse climates (Knoxville, TN and Mount Vernon, WA) across four successive years (2015-2018) was evaluated. Mulch treatments consisted of four commercially available BDMs composed primarily of polybutylene co-adipate- co-terephthalate (PBAT) that differed in color and polymeric feedstock</span><span><span>, a</span></span><span> black experimental BDM prepared from polylactic acid/polyhydroxybutyrate (PLA/PHA) blend, and conventional PE mulch. </span></span></span></p> <p><span><span><span>Mulch deterioration did not vary extensively between </span><span><span>years. </span></span><span><span>Solar</span></span><span> radiation, an important factor to degradation of mulches, was higher in WA than TN in most sampling years. Yet, degradation occurred </span><span><span>more greatly for</span></span><span> BDMs in TN</span><span><span>,</span></span><span> which </span><span><span>is attributable</span></span><span> to higher temperatures in TN. </span><span><span>Loss of</span></span><span> mechanical properties and color </span><span><span>was greater</span></span><span> than chemical </span><span><span>property changes.</span></span><span> </span><span><span>Differences in the extent of molecular weight decrease</span></span><span> between years correlated significantly with solar radiation </span><span><span>exposure at the two locations.</span></span><span> A black-colored PBAT-based BDM was less susceptible to degradation than equivalent clear and white-on-black films, due to carbon black acting as a photostabilizer. The impact of weathering also differed between </span><span><span>three commercially available PBAT-based films.</span></span><span> The PLA/PHA mulch was more susceptible to degradation than PBAT-based BDMs, particularly in the warmer location, TN, partially due to a leaching out of PHA and lower-molecular weight polymer molecules. The extent of change for physicochemical properties </span><span><span>of</span></span><span> BDMs due to agricultural weathering is greatly affected by polymeric composition, </span><span><span>and is greater in warmer climates.</span></span></span></span></p>
AVANCES Y DESAFÍOS RECIENTES EN EL DESARROLLO DE ENVASES BIODEGRADABLES: UNA REVISIÓN CIENTÍFICA Y TÉCNICA.
<p>Los envases biodegradables están en auge como alternativa de los plásticos convencionales debido a la creciente preocupación ambiental. Productos, como ácido poliláctico y polihidroxialcanoatos destacan por su capacidad compostable. Avances tecnológicos optimizan sus propiedades mecánicas y de barrera. Aunque existen desafíos de infraestructura y costos de producción, la innovación y el apoyo regulatorio seguirán impulsando el desarrollo de envases biodegradables.</p>
Biodegradable mulching film degradation in soil in Italy
<p><span>The biodegradable mulching samples underwent a visible degradation process in the soil at the experimental field of the University of Bari (Italy). The surface area of each sample clearly presented gaps that increased in size over time. After 42 days of burial the surface loss was 1.30%, reaching 56.70% on the last sampling. </span></p>
Biodegradable mulching film degradation in soil in Italy
<p><span>The biodegradable mulching samples underwent a visible degradation process in the soil at the experimental field of the University of Bari (Italy). The surface area of each sample clearly presented gaps that increased in size over time. After 42 days of burial the surface loss was 1.30%, reaching 56.70% on the last sampling.</span></p> <p><span> </span></p>
Data: Water quality and the biodegradability of dissolved organic carbon in drained boreal peatland under different forest harvesting intensities
<p><span>This repository consists of three files, which contain ground water and ditch water quality data in drained forested peatlands and dissolved organic carbon biodegradation to carbon dioxide. Experiments and results are presented in:</span></p> <p><span>Palviainen M., Peltomaa E., Laurén A., Kinnunen N., Ojala A., Berninger F., Zhu X., Pumpanen J. 2022. Water quality and the biodegradability of dissolved organic carbon in drained boreal peatland under different forest harvesting intensities. Science of the Total Environment 806: 150919 <a href="https://doi.org/10.1016/j.scitotenv.2021.150919">https://doi.org/10.1016/j.scitotenv.2021.150919</a>.</span></p> <p><span> </span></p>
Raw Data for "Synthesis and functionalisation of biodegradable Second Harmonic Generation nanoprobes for cell targeting"
<p>Raw data files used in the "Synthesis and functionalisation of biodegradable Second Harmonic Generation nanoprobes for cell targeting" manuscript.</p>
Transcriptomics data and script for publication "Unexpected intracellular biodegradation and recrystallization of gold nanoparticles"
<p>Transcriptomics data from DNA arrays sequencing</p> <p>Folder name : Raw_data_DNA_arrays.zip</p> <p>Number of files : 18 .cel files</p> <p> </p> <p>R script for DNA array analysis</p> <p>File name : Clean_Script.R</p>
Delivering metribuzin from biodegradable nanocarriers: Assessing herbicidal effects for soybean plant protection and weed control
<p>The data presents the indicators of soybean and soil health after metribuzin biodegradable nanocarriers and conventional metribuzin. Besides, the uptake and distribution of metribuzin in soil and weed plants (Amaranthus retroflexus) were associated with weed control evaluations.</p>
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