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001-es BibID:BIBFORM108817
035-os BibID:(Scopus)85148342638 (WoS)000934691100002
Első szerző:Kovács Zoltán (biotechnológus)
Cím:Nutrichemical alterations in different fractions of multiple-harvest alfalfa (Medicago sativa L.) green biomass fortified with various selenium forms / Zoltán Kovács, Áron Soós, Béla Kovács, László Kaszás, Nevien Elhawat, Mutasem Razem, Szilvia Veres, Miklós G. Fári, Judit Koroknai, Tarek Alshaal, Éva Domokos-Szabolcsy
Dátum:2023
ISSN:0032-079X 1573-5036
Megjegyzések:Background and Aims Wet processed alfalfa-based products can provide high-quality concentrated protein, also contain nutrients and phytochemicals. Agronomic fortification can increase selenium (Se) incorporation into green biomass. For this reason, the aim was to investigate how different forms of Se are incorporated into the green biomass of multiple-harvest alfalfa and how they affect the chemical quality of the processed product candidates. Methods In this research, alfalfa was enriched with three forms of selenium at different concentrations [selenate (Se(VI)); selenite (Se(IV)); and red elemental Se (Se0)]. The fortified green biomass was fractionated into leaf protein concentrate (LPC), fiber and phytoserum, and changes in selenium content and speciation, protein and phytochemical composition were determined. Results Total Se content in alfalfa fractions drastically reduced within the four consecutive harvests, particularly for Se(VI) and Se(IV) forms, and significantly varied according to the Se treatments. Selenomethionine (SeMet) was the predominant organic Se species in LPC (35.7-246.0 ?g g?1 DW) and fiber (9.0- 47.7 ?g g?1 DW) fractions. Se-fortification induced considerable changes in the crude protein of LPC, which varied between 29-45 (m/m)%. Phytochemical composition markedly varied among Se-treatments. Besides several flavonoids, aglycones and glycosyl derivatives, apigenin glucuronide, and apigenin were the most abundant with a concentration up to 170.85 ?g g?1 DW. Medicagenic acid concentration was below 1.86 ?g g?1 DW in LPC. Conclusions Se-enhanced alfalfa green biomass could provide functional products, such as LPC, for human and animal consumption with enhanced nutritional value, including Se, protein, and phytochemical contents.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Plant and Soil. - 487 : 1-2 (2023), p. 173-195. -
További szerzők:Soós Áron (1990-) (élelmiszerbiztonsági és -minőségi mérnök) Kovács Béla (1963-) (okleveles vegyész, angol szakfordító) Kaszás László (1989-) (kertészmérnök) Elhawat, Nevien Adel (1984-) (agrármérnök) Razem, Mutasem Veres Szilvia (1972-) (biológus, biológia középiskolai tanár, angol-magyar szakfordító) Fári Miklós (1953-) (kertészmérnök) Koroknai Judit Alshaal, Tarek Ali Ahmed Ibrahim (1980-) (Soil Scientist) Domokos-Szabolcsy Éva (1978-) (molekuláris biológus)
Pályázati támogatás:GINOP-2.2.1-15-2017-00051
GINOP
TKP2021-EGA-20
Egyéb
TKP2020-IKA-04
Egyéb
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001-es BibID:BIBFORM116703
035-os BibID:(Scopus)85175305049 (WoS)001096145600003
Első szerző:Ragályi Péter
Cím:Quantitative analysis of selenium species in the edible parts of cabbage, carrot, tomato and green pea treated with selenate-enriched irrigation water / Péter Ragályi, Tünde Takács, Áron Soós, Béla Kovács, Mihály Dernovics, Zdenko Lončarić, Péter Dobosy, Gyula Záray, Márk Rékási
Dátum:2023
ISSN:0032-079X 1573-5036
Megjegyzések:Background and aims: Selenium (Se)-biofortified foods are able to compensate for Se deficient diets, but the proportion of different Se species varies among plant species, and the bioavailability of Se species also varies. This study aims to examine the Se species composition of four vegetables. Methods: The effect of Se-enriched irrigation water on the concentrations of Se species in the edible parts of cabbage, carrots, tomatoes and green peas grown on different soil types was investigated and quantified using HPLC-ICP-MS with either standard addition or isotope dilution. Results: Cabbage leaf and carrot root contained a high proportion (88 and 92%, respectively) of selenate (SeVI), while in tomato fruit and green pea seed selenomethionine (SeMet) was found in the highest proportion (33% and 48%, respectively), but elemental Se was also detected. The elemental Se concentration of peas was significantly higher on sandy soil (2.29 mg kg?1) than on sandy silt (1.38 mg kg?1) or silt soil (1.34 mg kg?1). In 100 g of fresh edible parts, the largest amount of Se species was found in cabbage leaves, but organic Se in the form of SeMet was the most abundant in green peas, being significantly higher than in carrots or tomatoes. Tomatoes contained a nearly three-fold ratio of organic Se to inorganic Se, the latter being mostly comprised of the elemental form, which is unusually high in vegetables. The highest rate of unknown Se species exceeded 66% in the case of peas, while the highest identification rate (> 95%) of Se could be achieved in tomato. Conclusion: Tomatoes converted the absorbed Se into organic Se in the highest ratio, while green peas had the highest amount of organic Se in fresh biomass, so biotransformation was the most effective for these vegetables without any significant biomass reduction. These vegetables may be adapted to soils with a higher Se content.
Tárgyszavak:Agrártudományok Élelmiszertudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Bioavailability
Biofortification
Elemental selenium
Isotope dilution
Selenium speciation
Vegetables
Megjelenés:Plant And Soil. - "Accepted by Publisher" : - (2023), p. -. -
További szerzők:Takács Tünde (agrár) Soós Áron (1990-) (élelmiszerbiztonsági és -minőségi mérnök) Kovács Béla (1963-) (okleveles vegyész, angol szakfordító) Dernovics Mihály Lončarić, Zdenko Dobosy Péter Záray Gyula Rékási Márk
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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