A5002514645- Lignin and Wood Chemistry
- Biofuel production and bioconversion
- Advanced Cellulose Research Studies
- Fermentation and Sensory Analysis
- Analytical Chemistry and Chromatography
- Phytochemicals and Antioxidant Activities
- Plant Pathogens and Fungal Diseases
- Horticultural and Viticultural Research
- Insect and Pesticide Research
- Polysaccharides and Plant Cell Walls
- Advanced Chemical Sensor Technologies
- Catalysis for Biomass Conversion
- Chromatography in Natural Products
- Transgenic Plants and Applications
- Fungal and yeast genetics research
- CRISPR and Genetic Engineering
- Microbial Metabolites in Food Biotechnology
- Plant Surface Properties and Treatments
- Tea Polyphenols and Effects
- Spectroscopy and Chemometric Analyses
- Pharmacology and Obesity Treatment
- Mycotoxins in Agriculture and Food
- Plant Disease Resistance and Genetics
- Microbial Metabolic Engineering and Bioproduction
- Analytical chemistry methods development
BOKU University
2015-2021
Christian Doppler Laboratory for Thermoelectricity
2016
Austrian Agency for Health and Food Safety
2008-2009
Oxidation of cellulose with periodate under aqueous conditions yields dialdehyde cellulose, a promising functional derivative. The main obstacles for this oxidation have been its slow kinetics and the dilute reaction conditions, requiring considerable amounts water energy. In study, these drawbacks are overcome by conducting at high cellulosic pulp consistency cellulose/water weight ratio 1:4. oxidizer, efficiently mixed in ball mill. occurs mostly subsequent step, during resting time (no...
This work established an energy-saving and straightforward treatment of cellulosic pulp to obtain functional cellulose nanofibers equipping them at the same time with catalytic activity flame-retardant properties. For this purpose, dried was mixed a recyclable swelling agent, ZnCl2 hydrate, room temperature. The mild affected crystal structure through partial amorphization, yielding mix native I regenerated II. tremendously facilitated fibrillation into nanofiber (CNF) network. In comparison...
Light dependent processes are involved in the regulation of growth, development and enzyme production Trichoderma reesei. The photoreceptors BLR1, BLR2 ENV1 exert crucial functions these processes. We analyzed involvement transcription factor SUB1 sexual as well secondary metabolism its position light signaling cascade. influences growth contrast to homologue N. crassa, is not essential for fruiting body formation male fertility T. reesei, but required female fertility. Accordingly,...
Anthocyanins are abundant secondary metabolites responsible for most blue to blue-black, and red purple colors of various plant organs. In wheat grains, anthocyanins accumulated in the pericarp and/or aleurone layer. Anthocyanin pigmented grains can be processed into functional foods with potential health benefits due antioxidant properties anthocyanins. The grain anthocyanin content increased by pyramidizing different genes accumulation layers. Our objective was develop a high-performance...
Ephedra herb extracts are being extensively investigated in terms of their antioxidative, antimicrobial and antiproliferative properties, with phenolic components the general carriers these bioactivities. Here we describe a comprehensive set analytical methods employed to determine characterize both antioxidative activity qualitative profile acids flavonoids present several species different geographical origin. Spectrophotometric were used total content, flavonoid content activity....
The filamentous fungus Trichoderma reesei is found predominantly in the tropics but also more temperate regions, such as Europe, and widely known a producer of large amounts plant cell wall-degrading enzymes. We sequenced genome sexually competent isolate CBS999.97, which phenotypically different from female sterile strain QM6a can cross with QM6a. Transcriptome data for growth on cellulose showed that entire carbohydrate-active enzyme (CAZyme) families are consistently differentially...
The aim of this study was to develop a specific and sensitive identification method for two Aureobasidium pullulans biocontrol strains, CF10 CF40, based on sequence-characterized amplified region (SCAR) derived from RAPD - multiplex-RAPD PCR analysis.The random polymorphic DNA (RAPD) multiplex RAPD-PCR techniques were used preliminary screening A. genetic variability among 200 isolates. This approach allowed the selection ten fragments present solely in strains CF40. cloned, sequenced design...
Abstract A new and robust high performance thin-layer chromatography (HPTLC) method has been developed for carbohydrate analysis in biorefinery streams. The samples can be applied directly from industrial streams without any purification or pretreatment, saving time resources avoiding potential alterations to the samples’ composition. main neutral monosaccharides found wood-based lignocellulosic biomass – glucose, xylose, mannose, arabinose galactose separated quantified using...
A method for lignin quantification is presented that based on densitometry and multivariate calibration by partial least squares (PLS). Densitometry removes interferences otherwise caused undissolved liquor components solvents, while accounts other sample components, such as extractives or chromophoric compounds. Method validation predicted a bias very close to 0% an uncertainty of 10% (kraft) 20% less (lignosulfonate). In trials with three industrial kraft liquors, biases from 0 5% were...
Thin-layer chromatography (TLC) allows the swift analysis of larger sample sets in almost any laboratory. The obtained chromatograms are patterns coloured zones that conveniently evaluated and classified by visual inspection. This manual approach reaches its limit when several dozens or a few hundred samples need to be evaluated. Methods classify TLCs automatically objectively have been explored but without definitive conclusion; established methods, such as principal component analysis,...