A5059778931- Lignin and Wood Chemistry
- Advanced Cellulose Research Studies
- Polysaccharides and Plant Cell Walls
- Biofuel production and bioconversion
- Non-Destructive Testing Techniques
- Nuclear Physics and Applications
- Aerogels and thermal insulation
- Fault Detection and Control Systems
- Water Systems and Optimization
- Wood Treatment and Properties
- Geophysical and Geoelectrical Methods
- Scientific Research and Discoveries
- Enzyme-mediated dye degradation
- Concrete Corrosion and Durability
Aalto University
2016-2021
VTT Technical Research Centre of Finland
2014
Dynamic vapor sorption (DVS) coupled with deuterium exchange was applied in determining the amount of hydroxyl (OH) groups accessible for deuteration pulps and pure cellulose quantitatively. The samples studied method were different types chemical as well microcrystalline amorphous powders. measurement sequence consisted drying first until change sample mass less than 0.0005% min−1 followed by rewetting oxide (D2O) at set relative humidity (RH) 95% 600 min then again same way initial done....
Enzymatic modification of bleached softwood kraft fibres for improved fibre reactivity was studied at high (20% w/w) and low (1% dry matter content. The role enzyme family structure in assessed using endoglucanases from three structurally different glycoside hydrolase (GH) families (5, 7 45) with without a carbohydrate binding module (CBM). Based on the amount dissolved sugars, action consistency about sixfold higher compared to treatment consistency. GH45 endoglucanase found be most...
Abstract Cellulose utilization at its full potential often requires dissolution which is challenging. Aqueous NaOH the solvent of choice due to rapid, non-toxic, low cost and environmentally friendly process. However, there are several limitations, such as required temperature cellulose´s moderately degree polymerization concentration. Moreover, a tendency for gelation semidilute solutions with time temperature. The addition ZnO aids cellulose hinders self-aggregation in solution; however,...
Abstract This paper discusses the effect of hydrolytic pretreatments on pulp dissolution in aqueous NaOH–ZnO solvent system. Eight samples were studied. They consisted a never-dried softwood kraft that was hydrolyzed under seven different conditions as well without hydrolysis reference. The pulps evaluated both at macro level molecular based their reactivity with 4-acetamido-2,2,6,6-tetramethylpiperidine-1-oxo-piperidium (4-AcNH-TEMPO + ). fiber properties (i.e. extent fibrillation, amount...