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Structural features of dioxane lignin: A comparative study with milled wood and formaldehyde-stabilized lignins.
Int J Biol Macromol
January 2025
Core Facility Center "Arktika", Northern (Arctic) Federal University named after M.V. Lomonosov, Northern Dvina Emb., 17, Arkhangelsk 163002, Russian Federation. Electronic address:
Dioxane lignin (DL) is isolated from plant material under mild acidolysis conditions and is widely used in many studies as a representative sample of protolignin, an alternative to milled wood lignin (MWL). However, the structural changes caused by hydrolytic degradation reactions during DL extraction are still poorly understood. In this work, an integrated approach based on 2D NMR and high-resolution mass spectrometry was used to establish the features of the lignin structure on the example of pine lignin isolated using dioxane under various conditions: MWL, DL and "formaldehyde stabilized" lignin (LSF).
View Article and Find Full Text PDFApproaches for the preparation and evaluation of hydrophilic polyethylene and polyethylene terephthalate microplastic particles suited for toxicological effect studies.
Anal Bioanal Chem
January 2025
European Commission, Joint Research Centre (JRC), Geel, Belgium.
When performing effect studies to investigate the impact of microplastic (MP) on cell lines, algae, or daphnia, it is advantageous if such experiments can be performed without the use of surfactants. The need for surfactants arises from the fact that finely milled pristine MP particles generally are hydrophobic. Methods for the preparation of larger amounts of hydrophilic and hence artificially aged MP particles and approaches for their characterization are of high importance.
View Article and Find Full Text PDFZero Waste Concept in Production of PLA Biocomposites Reinforced with Fibers Derived from Wild Plant ( L.) and Energy Crop ( (L.) Rusby).
Polymers (Basel)
January 2025
Faculty of Textile Technology, University of Zagreb, Prilaz baruna Filipovića 28 a, 10000 Zagreb, Croatia.
This research follows the principles of circular economy through the zero waste concept and cascade approach performed in two steps. Our paper focuses on the first step and explores the characteristics of developed biocomposite materials made from a biodegradable poly(lactic acid) polymer (PLA) reinforced with natural fibers isolated from the second generation of biomass (agricultural biomass and weeds). Two plants, L.
View Article and Find Full Text PDFBovine dairy products and flow mediated dilation (FMD): a systematic review of the published evidence.
Eur J Nutr
January 2025
Food for Health Ireland, University College Dublin, Dublin 4, Republic of Ireland.
Purpose: Evidence suggests bovine dairy products may have neutral or beneficial effects on cardiometabolic health, despite being a source of saturated fat. The dairy matrix, the structure and combination of protein, fat, and other nutrients, and how they interact with each other, is purported to be responsible for these beneficial health effects. Whether this relationship extends to endothelial function, as assessed by flow mediated dilation (FMD), remains to be elucidated.
View Article and Find Full Text PDFBall milling of mackinawite and oxalic acid to fabricate an efficient and stable reductive material for remediation of Cr(Ⅵ)-contaminated soil.
J Environ Manage
January 2025
School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, PR China.
Compared with zero-valent iron, iron sulfide has more diverse reactive species and higher reductivity, but it is still prone to be gradually deactivated due to various passivation factors. In this study, a novel reductive material (BMMW@OA) was prepared by ball milling of mackinawite (MW) as raw material and oxalic acid (OA) as modifier, so as to simultaneously improve its reductivity and stability by continuous releasing reductive species and maintaining freshness of the material surface. The BMMW@OA (w/w of MW/OA = 4/1) effectively removed Cr(Ⅵ) from water with wide pH adaptability.
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