0599189 - ÚCHP 2025 RIV GB eng J - Článek v odborném periodiku
Bernat, S. - Di Bartolomeo, F. - Armada, S. - Valaker, E. - Bonturi, N. - Koseto, D. - Haugen, T. - Kvernbråten, A.-K. - Stavárek, Petr - Večeř, M. - Zelenka, L.
Exploring the potential of microbial biomass and microbial extracted oils in tribology: a sustainable frontier for environmentally acceptable lubricants.
Green Chemistry Letters and Reviews. Roč. 17, č. 1 (2024), č. článku 2330644. ISSN 1751-8253. E-ISSN 1751-7192
Grant CEP: GA TA ČR(CZ) TO01000250
Grant ostatní: NRC FME(NO) 257622
Institucionální podpora: RVO:67985858
Klíčová slova: environmentally acceptable lubricants * microbial biomass * lubricant additives * Saccharomyces cerevisiae * oleaginous yeast
Obor OECD: Chemical engineering (plants, products)
Impakt faktor: 5.8, rok: 2023 ; AIS: 0.872, rok: 2023
Způsob publikování: Open access
Web výsledku:
https://www.tandfonline.com/doi/full/10.1080/17518253.2024.2330644DOI: https://doi.org/10.1080/17518253.2024.2330644

Mineral oil-derived lubricants, extracted from fossil fuels, account for approximately 90% of the lubricant market. A large proportion of these lubricants end up in the environment through usage, spillage, and disposal, leading to contamination of aquatic systems, ecosystems, and agricultural lands. To address this, new regulations were released (e.g. Vessel General Permit 2013) to promote the use of Environmentally Acceptable Lubricants (EALs) over conventional, toxic, non-biodegradable mineral oils. Today, the range of EAL is limited, particularly affecting the maritime sector. Since 2013, the variety and effectiveness of EALs have improved, but further advancements and cost reductions are essential. This study focuses on developing sustainable bio-based additives from microbial processes to enhance EALs. These additives, sourced through fermentation, avoid using fossil fuels and do not require arable land, preserving water resources and food production areas. The research reveals that yeast, high in sulfur and phosphorus, and microbial oils, mainly carboxylic acids, effectively stabilize EAL formulations, reducing friction and wear in water-based lubricants. Microbial oils are superior in reducing friction, while yeast offers better wear protection. This study opens the possibility of incorporating various bio-based products into EALs, providing a sustainable, environmentally friendly option.
Trvalý link: https://hdl.handle.net/11104/0356710