Agata Olszewska‐Widdrat

ORCID: 0000-0002-7843-6846
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About
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Research Areas
  • Microbial Metabolic Engineering and Bioproduction
  • Biofuel production and bioconversion
  • Geomagnetism and Paleomagnetism Studies
  • Magnetic and Electromagnetic Effects
  • Enzyme Production and Characterization
  • Microbial Metabolites in Food Biotechnology
  • Bioeconomy and Sustainability Development
  • Zeolite Catalysis and Synthesis
  • Enzyme Catalysis and Immobilization
  • Bacteriophages and microbial interactions
  • Geology and Paleoclimatology Research
  • Membrane-based Ion Separation Techniques
  • Catalysis and Oxidation Reactions
  • Advanced Scientific Research Methods
  • Viral Infectious Diseases and Gene Expression in Insects
  • Digital Transformation in Industry
  • Food Industry and Aquatic Biology
  • Technology Assessment and Management
  • Minerals Flotation and Separation Techniques
  • Microfluidic and Bio-sensing Technologies
  • Catalytic Processes in Materials Science
  • Probiotics and Fermented Foods
  • Micro and Nano Robotics

Leibniz Institute for Agricultural Engineering and Bioeconomy
2019-2024

Max Planck Institute of Colloids and Interfaces
2016-2019

Sweet sorghum juice (SSJ) was evaluated as fermentation substrate for the production of l-lactic acid. A thermophilic Bacillus coagulans isolate selected batch fermentations without use additional nutrients. The first SSJ (Batch A) resulted on higher lactic acid concentration, yield and productivity with values 78.75 g∙L−1, 0.78 g∙g−1 1.77 g∙L−1 h−1, respectively. Similar results were obtained when process transferred into pilot scale (50 L), corresponding 73 0.70 1.47 h−1. complete...

10.3390/fermentation5020036 article EN cc-by Fermentation 2019-04-26

The numerous environmental problems caused by the extensive use of fossil resources have led to formation circular bioeconomy concept. Renewable will constitute cornerstone this new, sustainable model, with biomass presenting a huge potential for production fuels and chemicals. In context, waste by-product streams from food industry be treated not as “wastes” but resources. Rice generates various which currently are highly unexploited, leading especially in countries that main producers....

10.3390/fermentation6020042 article EN cc-by Fermentation 2020-04-22

The utilisation of waste materials and industrial residues became a priority within the bioeconomy concept production biobased chemicals. aim this study was to evaluate feasibility continuously produce L-lactic acid from different renewable substrates, in multi-substrate strategy mode. Based on batch experiments observations, Bacillus coagulans A534 strain able metabolise whey, sugar beet molasses, bread, alfalfa press green juice tapioca starch. Additionally, reference showed its behaviour...

10.3390/microorganisms8071084 article EN cc-by Microorganisms 2020-07-21

Integrated biorefineries play a transformative role in sustainable development by converting biomass and biogenic residues into high-value products while minimizing waste, emissions, resource inefficiencies. This review explores innovations biorefinery processes, emphasizing the synergy between thermochemical, biochemical, biological technologies such as pyrolysis, fermentation, anaerobic digestion, hydrothermal carbonization, algae insect systems. Recent advancements, including humification...

10.18331/brj2025.12.1.4 article EN cc-by Biofuel Research Journal 2025-03-01

The microbial production of lactic acid, a crucial platform chemical for the development biobased products, aims to replace fossil-based materials, although current costs remain relatively high. Fermentation requires addition yeast extract (YE) exclude nutritional lag, which increases cost production; therefore, optimizing its amount is essential. This study explores batch fermentation with varying concentrations YE (5%, 10%, 15% and 20%) in medium using strain Bacillus coagulans A166...

10.1016/j.procbio.2024.07.017 article EN cc-by Process Biochemistry 2024-07-11

MMagnetotactic bacteria are a heterogeneous group of Gram-negative prokaryotes, which all produce special magnetic organelles called magnetosomes. The magnetosome consists nanoparticle, either magnetite (Fe3O4) or greigite (Fe3S4), embedded in membrane, renders the systems colloidaly stable, desirable property for biotechnological applications. Although these able to regulate formation magnetosomes through biologically-controlled mechanism, environment general and physico–chemical conditions...

10.3389/fmicb.2019.00582 article EN cc-by Frontiers in Microbiology 2019-03-29

The effective and cheap production of platform chemicals is a crucial step towards the transition to bio-based economy. In this work, biotechnological methods using sustainable, cheap, readily available raw materials bring bio-economy industrial microbiology together: Microbial two demonstrated [lactic (LA) succinic acid (SA)] from non-expensive side stream pulp paper industry (fibre sludge) proposing sustainable way valorize it economically important monomers for bioplastics formation. This...

10.3389/fbioe.2023.1176043 article EN cc-by Frontiers in Bioengineering and Biotechnology 2023-05-18

Abstract Magnetic chains are of fundamental and technological interest. However, 1D assemblies magnetic nanoparticles only metastable such that their controlled organization requires the use templates. Bacteriophages human‐inoffensive viruses with a filamentous morphology have been shown to exhibit great potential in materials research. Here, we thus utilized M13 phage as model for formation actuated magnetite nanoparticle superstructures. First, built sperm‐like ensemble by covalently...

10.1002/cnma.202100053 article EN cc-by ChemNanoMat 2021-05-18

<b><sc>Abstract.</sc></b> With growing concerns about climate change, energy sustainability, and bio-residue management, anaerobic digestion, lactic acid fermentation, hydrothermal humification (HTH) processing plants utilizing primary biomass bio-waste as substrates have gained popularity. Each of these strategies has its own specific goals but also great communalities. This paper presents a concept how value chain the three in question can potentially bring added value; an increase methane...

10.13031/aim.202300460 article EN 2023-01-01
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