A5051169229- Methane Hydrates and Related Phenomena
- Climate change and permafrost
- Microbial bioremediation and biosurfactants
- Enhanced Oil Recovery Techniques
- Analytical chemistry methods development
- Marine and coastal ecosystems
- Microbial Metabolites in Food Biotechnology
- Microplastics and Plastic Pollution
- Mass Spectrometry Techniques and Applications
- Environmental Chemistry and Analysis
- Isotope Analysis in Ecology
- Indigenous Studies and Ecology
- Coal and Its By-products
- Probiotics and Fermented Foods
- Phosphorus and nutrient management
- Petroleum Processing and Analysis
- Atmospheric and Environmental Gas Dynamics
- Aquatic and Environmental Studies
- Protein Hydrolysis and Bioactive Peptides
- Arctic and Russian Policy Studies
- Diatoms and Algae Research
- Humic Substances and Bio-Organic Studies
- Geological Studies and Exploration
- Water Treatment and Disinfection
- Toxic Organic Pollutants Impact
Lomonosov Moscow State University
2020-2025
Moscow State University
2020-2023
The Siberian Arctic Shelf is undergoing major climate change in the Northern Hemisphere, heavily impacted by a massive release of dissolved organic matter (DOM) due to degradation permafrost as consequence global warming. This work devoted isolation large quantities DOM from Kara Sea, Laptev and East located west east along Shelf. goal was isolate marine water reference materials, addressing gap set available materials. Large volumes (500–700 L) were collected three target seas processed...
Large scale isolation—in gram quantities—of dissolved organic matter (DOM) from natural waters is necessary for detailed investigation of its role in chemical and microbial processes driving carbon cycling under conditions global climate change. The best candidate a use these large-scale experiments bulk sorbent Bondesil PPL, which has the same modification as widely used Bond Elut PPL sorbent. There have been no studies so far reported on interchangeability sorbents with regard to DOM...
The objective of this work was to study sorption dissolved organic matter (DOM) onto Bondesil PPL and Bond Elut sorbents with particular attention impact loading on molecular composition the DOM isolated a use solid phase extraction (SPE). It shown that batch isotherms were best fitted Langmuir model, constants 8.6·103 L·kgOC−1 10.7·103 for PPL, respectively. Breakthrough curves satisfactorily by logistic equation; maximum sorbent 13% (wt. carbon) both sorbents. relationship between values...
A search for novel sources of biologically active compounds is at the top agenda biomedical technologies. Natural humic substances (HSs) contain a large variety different chemotypes, such as condensed tannins, hydrolyzable terpenoids, lignins, etc. The goal this work was to develop an efficient separation technique based on solid-phase extraction (SPE) isolation narrow fractions HS with higher biological activity compared initial material. We used lignite acid parent material, which showed...
Pollution of the Arctic Ocean by potentially toxic elements (PTEs) is a current environmental problem. Humic acids (HAs) play an important role in regulation PTE mobility soil and water. The permafrost thaw releases ancient organic matter (OM) with specific molecular composition into watersheds. This could affect PTEs region. In our study, we isolated HAs from two types deposits: Yedoma ice complex, which contains pristine buried OM, alas formed course multiple thaw-refreezing cycles most...
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Various methods of stabilizing the cells lactic acid bacterium Enterococcus faecium during long-term storage were studied. It is shown that survival E. promoted by addition Enterosgel, Polysorb, use LB substratum, as well their immobilization in humic-silanol gel.