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Statements

Subject Item
n2:RIV%2F44555601%3A13520%2F11%3A43878317%21RIV12-MSM-13520___
rdf:type
n7:Vysledek skos:Concept
rdfs:seeAlso
http://www.academicjournals.org/AJB/PDF/pdf2011/12Dec/Trogl%20et%20al.pdf
dcterms:description
Denitrifying Bacterium Paracoccus denitrificans encapsulated in polyvinyl alcohol matrix (so called Lentikats Biocatalyst; LB) was applied for the removal of nitrates from simulated ion-exchange brines (12.14 g.L-1 Cl-, 1.35 g.L-1 SO42-, and 2.26 g.L-1 N-NO3-). The effect of brines dilution on the denitrification activity of fresh Lentikats Biocatalysts was tested simultaneously for four dilutions (100% = non-diluted, 80% = 4:1 brine:water, 60 and 40%) in four sequent repetitions per dilution without intermediate cultivation. In the first set, the denitrification of 100 and 80% brine was severely inhibited, while the denitrification activity in 60 and 40% brines was comparable to activity in non-inhibiting denitrification medium. The denitrification activity in 60 and 40% brines declined in later repetitions due to a lack of nutrients, while it increased in 80 and 100% brines before it declined as well. Such results are in contradiction to previous observations based on correlation analyses of data from longer experimental period. The detailed comparison implicates the adaptation of the encapsulated denitrification bacteria to higher salinity and emphasizes its importance for achievement of high denitrification activities of Lentikats Biocatalyst in industrial-scale applications even in non-diluted brines. Denitrifying Bacterium Paracoccus denitrificans encapsulated in polyvinyl alcohol matrix (so called Lentikats Biocatalyst; LB) was applied for the removal of nitrates from simulated ion-exchange brines (12.14 g.L-1 Cl-, 1.35 g.L-1 SO42-, and 2.26 g.L-1 N-NO3-). The effect of brines dilution on the denitrification activity of fresh Lentikats Biocatalysts was tested simultaneously for four dilutions (100% = non-diluted, 80% = 4:1 brine:water, 60 and 40%) in four sequent repetitions per dilution without intermediate cultivation. In the first set, the denitrification of 100 and 80% brine was severely inhibited, while the denitrification activity in 60 and 40% brines was comparable to activity in non-inhibiting denitrification medium. The denitrification activity in 60 and 40% brines declined in later repetitions due to a lack of nutrients, while it increased in 80 and 100% brines before it declined as well. Such results are in contradiction to previous observations based on correlation analyses of data from longer experimental period. The detailed comparison implicates the adaptation of the encapsulated denitrification bacteria to higher salinity and emphasizes its importance for achievement of high denitrification activities of Lentikats Biocatalyst in industrial-scale applications even in non-diluted brines.
dcterms:title
Application of Lentikats Biotechnology for removal of nitrates from ion-exchange brines: Implications for adaptation of encapsulated denitrifiers Application of Lentikats Biotechnology for removal of nitrates from ion-exchange brines: Implications for adaptation of encapsulated denitrifiers
skos:prefLabel
Application of Lentikats Biotechnology for removal of nitrates from ion-exchange brines: Implications for adaptation of encapsulated denitrifiers Application of Lentikats Biotechnology for removal of nitrates from ion-exchange brines: Implications for adaptation of encapsulated denitrifiers
skos:notation
RIV/44555601:13520/11:43878317!RIV12-MSM-13520___
n7:predkladatel
n14:orjk%3A13520
n3:aktivita
n16:S n16:P
n3:aktivity
P(1M0554), S
n3:cisloPeriodika
79
n3:dodaniDat
n15:2012
n3:domaciTvurceVysledku
n4:4859995 n4:3521117
n3:druhVysledku
n12:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
186799
n3:idVysledku
RIV/44555601:13520/11:43878317
n3:jazykVysledku
n10:eng
n3:klicovaSlova
polyvinyl alcohol; Paracoccus denitrificans; Lentikats Biocatalyst; ion-exchange brines; Denitrification
n3:klicoveSlovo
n5:polyvinyl%20alcohol n5:Denitrification n5:Lentikats%20Biocatalyst n5:ion-exchange%20brines n5:Paracoccus%20denitrificans
n3:kodStatuVydavatele
KE - Keňská republika
n3:kontrolniKodProRIV
[DBE289C085D9]
n3:nazevZdroje
African Journal of Biotechnology
n3:obor
n19:DJ
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
5
n3:projekt
n17:1M0554
n3:rokUplatneniVysledku
n15:2011
n3:svazekPeriodika
10
n3:tvurceVysledku
Stloukal, Radek Trögl, Josef Mrákota, Jan Boušková, Alžběta Pilařová, Věra
n3:wos
000299742400035
s:issn
1684-5315
s:numberOfPages
7
n6:doi
10.5897/AJB11.2302
n8:organizacniJednotka
13520