A5062970395- Biofuel production and bioconversion
- Lignin and Wood Chemistry
- Wood Treatment and Properties
- Botany and Plant Ecology Studies
- Forest ecology and management
- Bioenergy crop production and management
- Advanced Cellulose Research Studies
- Scheduling and Optimization Algorithms
- Wood and Agarwood Research
- Thermochemical Biomass Conversion Processes
- Advanced Manufacturing and Logistics Optimization
- Microbial Metabolic Engineering and Bioproduction
- Forest Ecology and Biodiversity Studies
- Assembly Line Balancing Optimization
- Seaweed-derived Bioactive Compounds
- Freezing and Crystallization Processes
- Lichen and fungal ecology
- Plant Gene Expression Analysis
- Cultural Heritage Materials Analysis
- Biochemical and biochemical processes
- Tree-ring climate responses
- Agriculture, Plant Science, Crop Management
- Plant responses to elevated CO2
- Material Properties and Processing
- Renewable energy and sustainable power systems
Poznan University of Medical Sciences
2009-2025
Warsaw University of Life Sciences
2014-2024
Institute of Wood Science and Technology
2024
Wroclaw Medical University
2023
Technical University of Zvolen
2023
Warsaw University of Technology
2009-2012
Lodz University of Technology
2005
We characterized a prospective endometrial carcinoma (EC) cohort containing 138 tumors and 20 enriched normal tissues using 10 different omics platforms. Targeted quantitation of two peptides can predict antigen processing presentation machinery activity, may inform patient selection for immunotherapy. Association analysis between MYC activity metformin treatment in both patients cell lines suggests potential role non-diabetic with elevated activity. PIK3R1 in-frame indels are associated AKT...
Abstract In this paper, the influence of physicochemical pretreatment methods on chemical composition, enzymatic hydrolysis efficiency and porosity fast-growing Populus trichocarpa wood was compared. Among methods, liquid hot water (LHW) steam explosion (SE) were used, which performed at three different temperatures (160 °C, 175 °C 190 °C) two residence times (15 min 1 h). The analysis done for native solid fraction obtained after LHW SE pretreatments. by inverse size exclusion...
Summary The effects of κ‐carrageenan and its hydrolysates on modification the freezing process also inhibition excessive recrystallisation ice in sucrose solutions during storage were compared. Acid hydrolysis was carried out using sulphuric ( H 2 SO 4 ) hydrochloric acid HC l). Most effective turned to be , which degraded a molecular mass around 3 × 10 6 Da, after 1.5 h hydrolysis. Addition 0.005% new poligeenan (degraded carrageenan), solution (30%), frozen at −20 °C, caused nearly 50%...
Enzymatic hydrolysis is crucial in processing lignocellulosic biomass into valuable products biorefineries. Due to the synergistic action of used enzymes cellulose and hemicelluloses chains are digested fermentable monosaccharides. It known that process efficiency can be improved by separation reaction end-products being cellulases' inhibitors. The work aimed investigate enzymatic corn stover poplar wood a stirred dead-end membrane bioreactor, enabling continuous end-products. Four UF...
Abstract The properties of black cherry mature wood ( Prunus serotina Ehrh.) and its susceptibility to fungal decay were studied in the invaded range species on six trees aged between 39 47 years old growing poor, acidic soils with varying levels moisture organic carbon nitrogen content. Wood from that grew wetter richer soil had better physical properties. Of 95 parameters analyzed, 80 showed significant differences favor this wood. These included wider rings averaged 3.25 mm, a higher...
Biomass pretreatment is a mandatory step for the biochemical conversion of lignocellulose to chemicals. During pretreatment, soluble compounds are released into prehydrolyzate that inhibit enzymatic hydrolysis step. In this work, we investigated how reaction conditions in steam explosion beechwood (severity: 3.0–5.25; temperature: 160–230 °C) influence resulting amounts different inhibitors. Furthermore, quantified extent enzyme inhibition during Avicel presence prehydrolyzates. The...
Steam explosion is a well-known process to pretreat lignocellulosic biomass in order enhance sugar yields enzymatic hydrolysis, but pretreatment conditions have be optimized individually for each material. In this study, we investigated how the results of optimization procedure are influenced by chosen reaction hydrolysis. Beechwood was pretreated steam and resulting subjected hydrolysis at glucan loadings 1% 5% employing either washed solids or whole slurry. For both modes loading 1%,...
The paper presents the results of research on microstructure bacterial cellulose (BC-SP) obtained a medium containing sweet potato peel, which was compared to synthetic sucrose and peptone (BC-N). properties were analyzed using methods: size exclusion chromatography (SEC), X-ray diffraction (XRD), scanning electron microscope (SEM), computer microtomograph (X-ray micro-CT). BC-SP characterized by higher degree polymerization (5680) lower porosity (1.45%) than BC-N (4879, 3.27%). These give...
The purpose of the paper is designation changes in structure cellulose after methane fermentation process Miscanthus and Sorghum harvested during growing season afterwards. percentage before were studied. Investigations into conducted by SEC, FT-IR XRD methods. average for varieties was higher lower. As a result fermentation, both investigated species two growth seasons degree polymerisation plants lower most feedstock. process, polymerization increased each However, crystallinity remained...
The potential of fast-growing poplar species was evaluated for bioethanol production. yields glucose and xylose from acid enzymatic hydrolysis were compared. processes performed on raw extracted wood. wood obtained by action a chloroform 96% ethanol (93:7 w/w) mixture. Additionally, to enhance the efficiency, liquid hot water (LHW) pretreatment used. turned out be good method verify biomass After biomass, high total sugars (between 626.2 808.5 mg/g or biomass), while in case very low 45.5...
The phytoalexin deficient 4 (PAD4) gene in Arabidopsis thaliana (AtPAD4) is involved the regulation of plant--pathogen interactions. role PAD4 woody plants not known; therefore, we characterized its function hybrid aspen and reactive oxygen species (ROS)-dependent signalling wood development. Three independent transgenic lines with different suppression levels poplar PAD expression were generated. All these displayed deregulated ROS metabolism, which was manifested by an increased H2O2 level...
The influence of bacterial cellulose gel film pretreatment methods on the efficiency enzymatic hydrolysis was investigated. An increase in due to liquid hot water or steam explosion shown. glucose yield 88% obtained from raw, non-purified, treated at 130 °C. results confirm potential as a source for biofuel production.
Two hyperbranched polyglycerols (HBPGs) and one oligoglycerol containing bisphenol A in the core of molecule were synthesized from glycerol carbonate applied as polyols 2-component polyurethane adhesive systems.It was shown that mechanical performance joints made solid wood depended on hydroxyl functionality polyglycerol well type isocyanate used a crosslinker.The shear strengths best-performing exceeded substrate.Eventually, it proved might be convenient glycerol-derived raw materials for adhesives.
This study aimed to determine glucose and xylose content by acid hydrolysis of wood samples, both unmodified thermally modified (modification time was 2, 6, 10 hours), using high performance liquid chromatography. Optimization the process on native ash samples showed that 3 h best in process. After time, 58.8% 20.8% were obtained. In turn, chromatographic analysis incomplete which a nitrogen atmosphere, especially at shorter times (2 6 h) modification. With longer modification (10 h),...
PINEWOOD (PINUS SYLVESTRIS L.)Pinewood (Pinus sylvestris L.) was thermally modified at temperatures of 160ºC and 200ºC for 2, 6 10 hour periods, respectively.The severe conditions the heat treatment resulted in decreased mechanical properties (compressive strength modulus elasticity) a decrease degree cellulose polymerization.A comparison selected polymerization indicated that there relationship between them temperature duration treatment.
Production of biofuel from lignocellulosic biomass is relatively low due to the limited knowledge about natural cell wall loosening and cellulolytic processes in plants. Industrial separation cellulose fiber mass lignin, its saccharification alcoholic fermentation still cost-ineffective environmental unfriendly. Assuming that green transformation inevitable new sources raw materials for biofuels are needed, we decided study death - a process occurring plants context reducing recalcitrance...
This paper compares the acid and enzymatic hydrolysis in relation to bioethanol production.The pulp obtained from wood of fast-growing poplar species (Populus deltoides x maximowiczii Populus trichocarpa Torr.& A. Gray ex Hook) was used as a feedstock.The delignification process by Kraft method carried out with 19% 26% active alkali (NaOH Na 2 S).The sugars (xylose glucose) were analyzed high-performance liquid chromatography.The results concluded that is better than because higher content...
Abstract The aim of this study was to determine the changes occurring in wood cellulose fast-growing poplar ( Populus deltoides × maximowiczii ) under influence steam explosion (SE) pretreatment. Cellulose from native and after pretreatment at 160 205 °C isolated. polymerization degree by size exclusion chromatography (SEC) crystallinity index Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR) were determined. profiles sugars solid fraction (using acid hydrolysis...