293 search results for “biomass residue harvesting” in the Public website
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Development of life cycle assessment for residue-based bioenergy
What are the key issues in conducting LCA of bioenergy systems? What is the environmental sustainability status of second generation bioethanol? How much would the final results of biogenic carbon neutrality assumptions deviate from the true values based on a complete inventory? How to assess the impact…
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Development of life cycle assessment for residue-based bioenergy
Promotores: Prof.dr.G.R. de Snoo and Dr. R. Heijungs
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The unit residue group
The unit residue group, to which the present thesis is devoted, is defined using the norm-residue symbol, which Hilbert introduced into algebraic number theory in 1897.
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HARVEST: Plant foods in human evolution
The HARVEST project explores the dietary choices that our hominin ancestors and relatives made, by recovering information on what they consumed, and how factors like environmental variation, intrinsic biology, and development of food processing technologies could have influenced their decisions.
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On the computation of norm residue symbols
An algorithm is discussed to compute the exponential representation of principal units in a finite extension field F of the p-adic rationals.
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Towards in-cell structural study of light-harvesting complexes : an investigation with MAS-NMR
Light-Harvesting Complex II (LHCII) is responsible for light absorption and excitation energy transfer in plants and photosynthetic algae, while in high light it undergoes conformational changes by which it quenches excitations to prevent photodamage.
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Chitin in the fungal cell wall: towards valorization of spent biomass of Aspergillus niger
Aspergillus niger is an important industrial producer of organic acids and enzymes producing large amounts of spent fungal biomass.
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Discovery and exploitation of the transcriptional regulatory system of pectinases in Aspergillus niger
Pectin is a plant cell wall polysaccharide made of mainly D-galacturonic acid (GA) subunits. The potency of the filamentous fungus Aspergillus niger to naturally secrete high amounts of pectinases to degrade pectin has been utilized for the industrial production of pectinases.
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for community ecology; a next generation of eDNA monitoring tool for biomass studies in freshwater environments
How can we quantify the density of species within a community through environmental DNA concentrations?
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In vitro investigation of the photoprotection mechanism of Light Harvesting Complex II
Solar energy is used by photosynthetic organisms to drive energy required cellular processes. Is absorbed by two groups of pigments, located in the LHCs.
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soil microbial community dynamics to N2O emission after bioenergy residue amendments
Vinasse is a major by-product generated by the sugarcane biofuel industry. It is a source of microbes, nutrients and organic matter and often it is recycled as fertilizer.
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NWO-grant for degration of biomass
Dr. Erik Vijgenboom (IBL) and Dr. Peter Punt (IBL/TNO) obtained a new NWO-grant for their project FILAZYME to develop filamentous micro-organisms for enzyme production to degrade biomass.
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Development of homogeneous catalysts for the selective conversion of levulinic acid to caprolactam
Promotors: Prof.dr. E. Bouwman, Prof.dr. E. Drent
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CO2-Calculator
Development of GHG calculator for bio-electricity and heat.
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What to do with the fruit residue from oil palm seeds: refine it into bio-ethanol or use it as fertilizer?
When oil is harvested from the seeds of the oil palm tree, the fruit residue can be used to make bio-ethanol. However, it can also be used as a fertilizer on palm tree plantations; which option is best for the environment? Edi Wiloso compared the two green options at the Institute of Environmental Sciences…
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Phenotypic engineering of photosynthesis related traits in Arabidopsis thaliana using genome interrogation
Promotor: P.J.J. Hooykaas, Co-Promotor: E.J. van der Zaal
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Laboratory for Artefact Studies
Commercial enterprises who want to make use of the expertise and facilities are referred to LAB , the commercial unit responsible for specialized laboratory work.
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Hunter-gatherer toolkits and tasks: detecting microwear traces and residues on Northwestern European Mesolithic artefac
Prof.dr. Annelou van Gijn has obtained a Marie Curie subsidy for research on wetland activity patterns in Mesolithic Northwest Europe. This funding has been used to employ the researcher dr. Aimée Little. The project will commence in November 2011.
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Annelou van GijnFaculteit Archeologie
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Anjali PanditScience
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Papyri: the written residue of daily life during the formative period of Islam
How did people experience Islam on a day-to-day basis in the early centuries of Islam? That's where the papyri come in, says professor of Arabic Petra Sijpesteijn in the fourth video of the Leiden | Islam interview series.
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Structure and regulation in photosynthesis
Plants, algae and cyanobacteria have the amazing capacity to perform delicate photophysical and photochemical processes of light capture, excitation transfer, charge separation and catalysis in fluctuating living environments. As a consequence, photosynthetic proteins and membranes form dynamic architectures.…
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Research
Research at the Macromolecular Biochemistry group is comprised of the following research themes:
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Valerio GentileFaculteit Archeologie
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Geeske LangejansFaculteit Archeologie
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What’s in a plant?
Tracking early human behaviour through plant processing and -exploitation.
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Connecting dots between natural and artificial Photosynthesis
Decentralized plug and play systems for energy production are the future picture of our society. Artificial photosynthetic systems are used for this purpose.
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Regulation of enzyme production in fungal cell factories
Our object is to identify and characterize transcription factors involved in lignocellulosic biomass degradation in the filamentous fungus Aspergillus niger.
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Novel approaches to develop filamentous micro-organisms for enzyme production (FILAZYME)
Can we develop new enzymes and cell factories to upgrade current enzyme cocktails towards complete degradation of biomass?
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BioSustain
Examining the sustainability aspects of biotechnology, especially those related to the production of ethanol from biomass.
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Effects of glufosinate-ammonium on off crop vegetation
Description of Effects of glufosinate-ammonium on off crop vegetation.
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Photosynthetic light reactions at the gold interface
Promotor: Prof.dr. T.J. Aartsma, Co-promotor: R.N. Frese
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The unit residue group
PhD Defence
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A computational study of structural and excitonic properties of chlorosomes
The long-held desire - to link structure directly to function and to explain molecular mechanisms based on basic chemical or physical principles - is finally coming closer, satisfying not only our scientific curiosity but also offering new solutions to the many challenges in the field of health, energy…
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A semisynthetic peptide-metalloporphyrin responsive matrix for artificial photosynthesis
This thesis is concerned with the constitution of chiral responsive matrix assemblies that may undergo light-driven conformational changes and self-select vibrations to develop vibronic states for driving semi-classical coherent transfer with nearly 100% yield in a lossless NCAP process.
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Nanoparticle – redox protein biohybrids
Artificial photosynthesis aims to produce fuels from solar energy using chemical processes. In semi-artificial photosynthesis, a hybrid approach is taken using both chemical and biotechnology approaches. We aim to develop hybrid systems between light-harvesting nanoparticles and redox-enzymes (oxidoreductases)…
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Research Grant for tuning into photosynthesis
Biophysicist Anjali Pandit has been awarded a FOM 'Projectruimte' research grant for her proposal ‘Tuning into the photosynthetic membrane with atomistic precision’.
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Analysis of Energy Systems
The Institute of Environmental Sciences has carried out and participates in several projects that deal with the analysis of energy systems.
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Scanning mutagenesis in a yeast system delineates the role of the NPxxY(x)(5,6)F motif and helix 8 of the adenosine A(2B) receptor in G protein
Source: Biochem Pharmacol, Volume 95, Issue 4, pp. 290-300 (2015)
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In shape for photoregulation
How does the photoregulation mechanism work in detail?
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PhD Theses
A full overview of BPOC/SSNMR PhD theses.
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On the computation of norm residue symbols
PhD Defence
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Inverse problems for universal deformation rings of group representations
Promotor: P. Stevenhagen, Co-promotores: B. de Smit, F. Andreatta
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The activation mechanisms of G protein-coupled receptors: the case of the adenosine A2B and HCA2/3 receptors
Promotor: A.P. IJzerman
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Discovery and development of inhibitors selective for human constitutive proteasome and immunoproteasome active sites
This thesis describes the design and development of subunit‐selective inhibitors of particular catalytically active subunits of human constitutive proteasomes and immunoproteasomes.
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Scalable organic solvent free supercritical fluid spray drying process for producing dry protein formulations
In this study, we evaluated the influence of supercritical carbon dioxide (scCO2) spray drying conditions, in the absence of organic solvent, on the ability to produce dry protein/trehalose formulations at 1:10 and 1:4 (w/w) ratios.
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Waste Separation
What is better for waste recycling: a plastic, paper or ceramic cup? A bio-based or fossil-based coating? Waste sorting at the source or at a recycling facility? Ask ten experts and you will get ten different opinions. We can all agree on one thing: doing nothing is not an option. Thus, Leiden University…
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Master Projects
Master projects are available in
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A yeast screening method to decipher the interaction between the adenosine A2B receptor and the C-terminus of different G protein α-subunits
Source: Purinergic Signal., Volume 10, Issue 3, pp. 441-53 (2014)
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Piecewise deterministic Markov processes: an analytic approach
Promotor: S.M. Verduyn Lunel, Co-Promotores: S.C.Hille, O.W. van Gaans