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001-es BibID:	BIBFORM102052
035-os BibID:	(cikkazonosító)2196 (Scopus)85125149423 (WOS)000771615100001
Első szerző:	Bácsi István (biológus)
Cím:	The Effects of Photobioreactor Type on Biomass and Lipid Production of the Green Microalga Monoraphidium pusillum in Laboratory Scale / Bácsi István, Tóthfalusi Fruzsina, Márton Kamilla, B-Béres Viktória, Gonda Sándor
Dátum:	2022
ISSN:	2076-3417
Megjegyzések:	Mass production of microorganisms, algae among them, for new bioactive compounds and renewable innovative products is a current issue in biotechnology. The greatest challenge of basic research on this topic is to find the best solution for both physiology and scalability. In this study, the main goal was to highlight the contradictions of physiological and technological optimization in the same, relatively small, laboratory scale. The green alga Monoraphidium pusillum (Printz) Komárková-Legnorová was cultured in a conventional Erlenmeyer flask (as air bubbled in a tank-type photobioreactor) and in a hybrid (fermenter type + helical tubular type) photobioreactor of the same volume (2.8 L). Higher cell numbers from 1.7?2.3-fold, 2?2.8-fold higher dry masses, and 1.9?2.6-fold higher total lipid contents (mg?L-1) were measured in the tank reactor than in the hybrid reactor. Cultures in the conventional tank reactor were characterized with better nutrient utilization (42.8?77.7% higher phosphate uptake) and more diverse lipid composition than in the hybrid reactor. The study highlights that well-scalable arrangements and settings could be not optimal (or unsuitable in some cases) from a physiological point of view. The results suggest certain developmental directions for complex, well-scalable devices and highlight the importance of testing the gained physiological optima on these systems.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk tank-type reactor hybrid reactor laboratory scale green alga growth nutrient utilization lipid production
Megjelenés:	Applied Sciences-Basel. - 12 : 4 (2022), p. 1-19. -
További szerzők:	Tóthfalusi Fruzsina Márton Kamilla (1995-) (tanszéki mérnök) B-Béres Viktória (1981-) (biológus) Gonda Sándor (1984-) (gyógyszerész)
Pályázati támogatás:	FK131917 OTKA TKP2021-NKTA-32 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM098746
035-os BibID:	(cikkazonosító)2112 (WoS)000644099500001 (Scopus)85106221660
Első szerző:	Figler Aida (okleveles hidrobiológus)
Cím:	Effects of Nutrient Content and Nitrogen to Phosphorous Ratio on the Growth, Nutrient Removal and Desalination Properties of the Green Alga Coelastrum morus on a Laboratory Scale / Figler Aida, Márton Kamilla, B-Béres Viktória, Bácsi István
Dátum:	2021
ISSN:	1996-1073
Megjegyzések:	In wastewater, nutrient concentrations and salinity vary substantially, however, the optimal N:P ratio for the treatment using microalgae is not well described. In this study, the effects of higher and lower nitrate and phosphate contents and N:P ratios on growth, nutrient removal ability and halotolerance of the common green alga Coelastrum morus were investigated in model solutions. The results suggest that high nitrate content (above 100 mg L-1) with a similarly high phosphate concentration (resulting low N:P ratio) is not favorable for growth. The studied isolate can be considered as a halotolerant species, showing remarkable growth up to 1000 mg L?1 NaCl and it seems that despite the negative effects on growth, higher nutrient content contributes to higher halotolerance. A significant amount of nitrate removal was observed in media with different nutrient contents and N:P ratios with different salt concentrations. High N:P ratios favor phosphate removal, which is more inhibited by increasing NaCl concentration than nitrate uptake. Overall, with a relatively higher nutrient content and a favorable (5 or higher) N:P ratio, a common green algal species such as C. morus could be a promising candidate next to species from the Chlorellaceae and Scenedesmaceae families.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk green alga nutrient content N:P ratio salt tolerance nutrient removal salt content reduction
Megjelenés:	Energies. - 14 : 8 (2021), p. 1-16. -
További szerzők:	Márton Kamilla (1995-) (tanszéki mérnök) B-Béres Viktória (1981-) (biológus) Bácsi István (1977-) (biológus)
Pályázati támogatás:	NKFIH FK 131 917 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM082389
035-os BibID:	(cikkazonosító)2527 (Wos)000507378600100 (Scopus)85085000484
Első szerző:	Figler Aida (okleveles hidrobiológus)
Cím:	Salt Tolerance and Desalination Abilities of Nine Common Green Microalgae Isolates / Figler Aida, B-Béres Viktória, Dobronoki Dalma, Márton Kamilla, Nagy Sándor Alex, Bácsi István
Dátum:	2019
ISSN:	2073-4441
Megjegyzések:	Abstract: In recent years, decline of freshwater resources has been recognized as one of the main environmental problems on global level. In addition to the increasing extent of primary salinization due to climate change, secondary salinization caused by human interventions is also a significantly increasing problem, therefore, the development of various chemical-free, biological desalination and removal procedures will become increasingly important. In the present study, the salinity tolerance, salinity, and nutrient reducing ability of nine common freshwater microalgae species from the genera Chlorella, Chlorococcum, Desmodesmus, Scenedesmus, and Monoraphidium were investigated. Our results proved that the studied green microalgae species are halotolerant ones, which are able to proliferate in environments with high salt concentrations. Furthermore, most of the species were able to reduce conductivity and remove significant amounts of chloride (up to 39%) and nutrients (more than 90% nitrate). The results proved that nitrate removal of the studied species was not influenced by salt concentration, only indirectly via growth inhibition. However, the results also highlighted that N:P ratio of the medium has primarily importance in satisfactory phosphorous removal. It can be concluded that assemblages of the studied microalgae species could be able to adapt to changing conditions even of salt-rich wastewaters and improve water quality during bioremediation processes.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk green microalgae salt tolerance conductivity reduction nutrient removal
Megjelenés:	Water. - 11 : 12(2019), p. 1-17. -
További szerzők:	B-Béres Viktória (1981-) (biológus) Dobronoki Dalma (1992-) (hidrobiológus) Márton Kamilla (1995-) (tanszéki mérnök) Nagy Sándor Alex (1956-) (hidrobiológus) Bácsi István (1977-) (biológus)
Pályázati támogatás:	GINOP-2.2.1-15-2016-00029 GINOP GINOP-2.3.2-15-2016-00019 GINOP NKFIH-1150-6/2019 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM116642
035-os BibID:	(WoS)001106431100003 (Scopus)85177181822
Első szerző:	Kiss Stefánia
Cím:	Aquatic phases have a stronger effect on lotic benthic diatoms than human-induced microhabitat variability / Stefánia Kiss, Zsuzsanna Nemes-Kókai, Áron Lukács, István Bácsi, Enikő T-Krasznai, Kamilla Márton, Viktória B-Béres
Dátum:	2023
ISSN:	0018-8158 1573-5117
Megjegyzések:	Here, we studied the influence of changes of aquatic phases (standing and flowing phases) and human-induced habitat variability (natural and artificial) on the composition and diversity of benthic diatom assemblages in a small lowland stream in the Pannonian Ecoregion. Significant differences in composition were hypothesized between phases and habitats. Lower diversity was hypothesized in the flowing phase and in the artificial habitat. In addition, worser ecological status were assumed in the artificial habitat and in the standing phase than in the others. Our results only partially supported our hypotheses. While there was no significant difference in the composition of the assemblages between the natural and concreted habitats, the alteration in flow conditions resulted in a significant change. No significant differences in diversity were found between aquatic phases. In contrast, biodiversity was higher in the artificial habitat than in the natural one. While the anthropogenic impact, i.e., concreted streambed has no significant influence on diatom-based ecological status, values of diatom indices were significantly higher in the flowing phase. Our results highlight that extreme weather events play a major role in shaping diatom assemblages even during a short period, which should be taken into account in water management and nature conservation measures.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk aquatic phases compositional and biodiversity changes concrete stream bed ecological status intermittent lowland stream
Megjelenés:	Hydrobiologia. - "Accepted by Publisher" (2023). -
További szerzők:	Kókai Zsuzsanna (1989-) (hidrobiológus) Lukács Áron (1993-) (hidrobiológus) Bácsi István (1977-) (biológus) Krasznai Enikő (biológus) Márton Kamilla (1995-) (tanszéki mérnök) B-Béres Viktória (1981-) (biológus)
Pályázati támogatás:	FK 132142 Egyéb BO-00458-20-8 Egyéb ÚNKP-20-5 Egyéb ÚNKP-21-5 Egyéb ÚNKP-22-5 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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