Ministry of Science and Technological Development of the Republic of Serbia

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Antioxidative activities and chemical characterization of polysaccharides extracted from the basidiomycete Schizophyllum commune

Klaus, Anita; Kozarski, Maja S.; Nikšić, Miomir; Jakovljević, Dragica; Todorović, Nina; Van Griensven, Leo J. L. D.

(Elsevier, 2011)

TY  - JOUR
AU  - Klaus, Anita
AU  - Kozarski, Maja S.
AU  - Nikšić, Miomir
AU  - Jakovljević, Dragica
AU  - Todorović, Nina
AU  - Van Griensven, Leo J. L. D.
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/853
AB  - Antioxidant properties properties of hot water extract (HWE), hot water extracted polysaccharides (HWP) and hot alkali extracted polysaccharides (HWAE) were obtained from fruiting bodies of the wild basidiomycete Schizophyllum commune. All extracts contained both alpha- and beta-glucans as determined by Megazyme beta-glucan assay kit. Glucose was found by TLC and NMR to be the prevalent monosaccharide in all extracts. Total phenol contents were in descending order of HWP approximate to HWE > HWAE. Median effective concentrations (EC(50) values) of antioxidant activities were 8.3 +/- 0.1, 6.9 +/- 0.0 and 8.9 +/- 0.1 mg/mL, and of the DPPH scavenging activity 0.8 +/- 0.0, 0.6 +/- 0.0 and 1.8 +/- 0.0 mg/mL, for HWE, HWP and HWAE, respectively. EC(50) values of reducing power were 7.6 +/- 0.1, 7.9 +/- 0.0 and 12.5 +/- 0.1 mg/mL, whereas those of the chelating abilities on ferrous ions were 3.1 +/- 0.0, 4.6 +/- 0.1 and 4.9 +/- 0.1 mg/mL The EC(50) values of the antioxidant activity, of the DPPH scavenging, and of the reducing power were correlated with total polysaccharide as well as with total phenol content. The antioxidant activities of all the extracts may be caused by both polysaccharides and polyphenols or by a complex of both.
PB  - Elsevier
T2  - Lwt-Food Science and Technology
T1  - Antioxidative activities and chemical characterization of polysaccharides extracted from the basidiomycete Schizophyllum commune
VL  - 44
IS  - 10
SP  - 2005
EP  - 2011
DO  - 10.1016/j.lwt.2011.05.010
ER  - 
@article{
author = "Klaus, Anita and Kozarski, Maja S. and Nikšić, Miomir and Jakovljević, Dragica and Todorović, Nina and Van Griensven, Leo J. L. D.",
year = "2011",
abstract = "Antioxidant properties properties of hot water extract (HWE), hot water extracted polysaccharides (HWP) and hot alkali extracted polysaccharides (HWAE) were obtained from fruiting bodies of the wild basidiomycete Schizophyllum commune. All extracts contained both alpha- and beta-glucans as determined by Megazyme beta-glucan assay kit. Glucose was found by TLC and NMR to be the prevalent monosaccharide in all extracts. Total phenol contents were in descending order of HWP approximate to HWE > HWAE. Median effective concentrations (EC(50) values) of antioxidant activities were 8.3 +/- 0.1, 6.9 +/- 0.0 and 8.9 +/- 0.1 mg/mL, and of the DPPH scavenging activity 0.8 +/- 0.0, 0.6 +/- 0.0 and 1.8 +/- 0.0 mg/mL, for HWE, HWP and HWAE, respectively. EC(50) values of reducing power were 7.6 +/- 0.1, 7.9 +/- 0.0 and 12.5 +/- 0.1 mg/mL, whereas those of the chelating abilities on ferrous ions were 3.1 +/- 0.0, 4.6 +/- 0.1 and 4.9 +/- 0.1 mg/mL The EC(50) values of the antioxidant activity, of the DPPH scavenging, and of the reducing power were correlated with total polysaccharide as well as with total phenol content. The antioxidant activities of all the extracts may be caused by both polysaccharides and polyphenols or by a complex of both.",
publisher = "Elsevier",
journal = "Lwt-Food Science and Technology",
title = "Antioxidative activities and chemical characterization of polysaccharides extracted from the basidiomycete Schizophyllum commune",
volume = "44",
number = "10",
pages = "2005-2011",
doi = "10.1016/j.lwt.2011.05.010"
}
Klaus, A., Kozarski, M. S., Nikšić, M., Jakovljević, D., Todorović, N.,& Van Griensven, L. J. L. D.. (2011). Antioxidative activities and chemical characterization of polysaccharides extracted from the basidiomycete Schizophyllum commune. in Lwt-Food Science and Technology
Elsevier., 44(10), 2005-2011.
https://doi.org/10.1016/j.lwt.2011.05.010
Klaus A, Kozarski MS, Nikšić M, Jakovljević D, Todorović N, Van Griensven LJLD. Antioxidative activities and chemical characterization of polysaccharides extracted from the basidiomycete Schizophyllum commune. in Lwt-Food Science and Technology. 2011;44(10):2005-2011.
doi:10.1016/j.lwt.2011.05.010 .
Klaus, Anita, Kozarski, Maja S., Nikšić, Miomir, Jakovljević, Dragica, Todorović, Nina, Van Griensven, Leo J. L. D., "Antioxidative activities and chemical characterization of polysaccharides extracted from the basidiomycete Schizophyllum commune" in Lwt-Food Science and Technology, 44, no. 10 (2011):2005-2011,
https://doi.org/10.1016/j.lwt.2011.05.010 . .
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112

n-alkanes in the needle waxes of Pinus heldreichii var. pančići

Nikolić, Biljana; Tešević, Vele; Đorđević, Iris; Jadranin, Milka; Todosijević, Marina; Bojovic, Srdjan; Marin, Petar D.

(Serbian Chemical Soc, Belgrade, 2010)

TY  - JOUR
AU  - Nikolić, Biljana
AU  - Tešević, Vele
AU  - Đorđević, Iris
AU  - Jadranin, Milka
AU  - Todosijević, Marina
AU  - Bojovic, Srdjan
AU  - Marin, Petar D.
PY  - 2010
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/675
AB  - This is the first report of n-alkanes in needle epicuticular waxes of the variety Bosnian pine, Pinus heldreichii var. pančići. n-Hexane extracts of needle samples, originating from seven isolated localities in Serbia, were analysed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The results evidenced n-alkanes ranging from C18 to C33 in epicuticular waxes. The most abundant alkanes were C27, C23, C25 and C29 (12.53 %, 12.46 %, 12.00 % and 10.38 % on average, respectively). The carbon preference index (CPItotal) of Pinus heldreichii var. pančići ranged from 1.1 to 2.1 (1.6 on average), while the average chain length (ACLtotal) ranged from 25.0 to 25.8 (25.3 on average). A high level of individual quantitative variation in all of these hydrocarbon parameters was also found. The obtained results were compared with the bibliographic references for Pinus heldreichii var. leucodermis and other species of the Pinus genus.
AB  - Ovo je prvo saopštenje o n-alkanima u voskovima iglica varijeteta munike, Pinus heldreichii var. pančići. n-Heksanski ekstrakti uzoraka iglica koji potiču sa sedam izolovanih lokaliteta u Srbiji analizirani su gasnom hromatografijom (GC) i gasnom hromatografijom-masenom spektrometrijom (GC-MS). Rezultati su pokazali da se n-alkani nalaze u opsegu od C18 do C33. Među njima su najobilniji C27, C23, C25 i C29 (12,53, 12,46, 12,00 i 10,38 % u proseku, redom). Ugljenični preferencijalni indeks (CPItotal) Pinus heldreichii var. pančići je bio u opsegu od 1,1 do 2,1 (prosečno 1,6), a dužina niza ugljenikovih atoma (ACLtotal) u opsegu od 25,0 do 25,8 (prosečno 25,3). Takođe je utvrđen visok nivo individualne kvantitativne varijabilnosti u svim analiziranim parametrima ovih ugljovodonika. Dobijeni rezultati su upoređeni sa literaturnim podacima koji se odnose na Pinus heldreichii var. leucodermis i druge vrste roda Pinus.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - n-alkanes in the needle waxes of Pinus heldreichii var. pančići
T1  - n-alkani u voskovima iglica Pinus heldreichii var. pančići
VL  - 75
IS  - 10
SP  - 1337
EP  - 1346
DO  - 10.2298/JSC100322089N
ER  - 
@article{
author = "Nikolić, Biljana and Tešević, Vele and Đorđević, Iris and Jadranin, Milka and Todosijević, Marina and Bojovic, Srdjan and Marin, Petar D.",
year = "2010",
abstract = "This is the first report of n-alkanes in needle epicuticular waxes of the variety Bosnian pine, Pinus heldreichii var. pančići. n-Hexane extracts of needle samples, originating from seven isolated localities in Serbia, were analysed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The results evidenced n-alkanes ranging from C18 to C33 in epicuticular waxes. The most abundant alkanes were C27, C23, C25 and C29 (12.53 %, 12.46 %, 12.00 % and 10.38 % on average, respectively). The carbon preference index (CPItotal) of Pinus heldreichii var. pančići ranged from 1.1 to 2.1 (1.6 on average), while the average chain length (ACLtotal) ranged from 25.0 to 25.8 (25.3 on average). A high level of individual quantitative variation in all of these hydrocarbon parameters was also found. The obtained results were compared with the bibliographic references for Pinus heldreichii var. leucodermis and other species of the Pinus genus., Ovo je prvo saopštenje o n-alkanima u voskovima iglica varijeteta munike, Pinus heldreichii var. pančići. n-Heksanski ekstrakti uzoraka iglica koji potiču sa sedam izolovanih lokaliteta u Srbiji analizirani su gasnom hromatografijom (GC) i gasnom hromatografijom-masenom spektrometrijom (GC-MS). Rezultati su pokazali da se n-alkani nalaze u opsegu od C18 do C33. Među njima su najobilniji C27, C23, C25 i C29 (12,53, 12,46, 12,00 i 10,38 % u proseku, redom). Ugljenični preferencijalni indeks (CPItotal) Pinus heldreichii var. pančići je bio u opsegu od 1,1 do 2,1 (prosečno 1,6), a dužina niza ugljenikovih atoma (ACLtotal) u opsegu od 25,0 do 25,8 (prosečno 25,3). Takođe je utvrđen visok nivo individualne kvantitativne varijabilnosti u svim analiziranim parametrima ovih ugljovodonika. Dobijeni rezultati su upoređeni sa literaturnim podacima koji se odnose na Pinus heldreichii var. leucodermis i druge vrste roda Pinus.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "n-alkanes in the needle waxes of Pinus heldreichii var. pančići, n-alkani u voskovima iglica Pinus heldreichii var. pančići",
volume = "75",
number = "10",
pages = "1337-1346",
doi = "10.2298/JSC100322089N"
}
Nikolić, B., Tešević, V., Đorđević, I., Jadranin, M., Todosijević, M., Bojovic, S.,& Marin, P. D.. (2010). n-alkanes in the needle waxes of Pinus heldreichii var. pančići. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 75(10), 1337-1346.
https://doi.org/10.2298/JSC100322089N
Nikolić B, Tešević V, Đorđević I, Jadranin M, Todosijević M, Bojovic S, Marin PD. n-alkanes in the needle waxes of Pinus heldreichii var. pančići. in Journal of the Serbian Chemical Society. 2010;75(10):1337-1346.
doi:10.2298/JSC100322089N .
Nikolić, Biljana, Tešević, Vele, Đorđević, Iris, Jadranin, Milka, Todosijević, Marina, Bojovic, Srdjan, Marin, Petar D., "n-alkanes in the needle waxes of Pinus heldreichii var. pančići" in Journal of the Serbian Chemical Society, 75, no. 10 (2010):1337-1346,
https://doi.org/10.2298/JSC100322089N . .
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Consistent force field for metalloporphyrins

Anđelković, Ljubica; Grubišić, Sonja; Đorđević, Ivana; Zlatar, Matija; Niketić, Svetozar R.; Gruden-Pavlović, Maja

(Serbian Chemical Soc, Belgrade, 2010)

TY  - JOUR
AU  - Anđelković, Ljubica
AU  - Grubišić, Sonja
AU  - Đorđević, Ivana
AU  - Zlatar, Matija
AU  - Niketić, Svetozar R.
AU  - Gruden-Pavlović, Maja
PY  - 2010
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/690
AB  - Molecular mechanics (MM) calculations to analyze the puckering of metalloporphyrins isolated and adsorbed on a graphite layer (0001) as a function of metal ion size and the peripheral substitution are presented. The Consistent Force Field (CFF) program was used with new parameters for metalloporphyrins, which included an out-of-plane bending function. Normal-coordinate structural decomposition (NSD) analysis was performed on the equilibrium structures obtained by the MM calculations. The conformers were also stereo-chemically characterized and compared with available experimental data and with conformers obtained in a previous MM study.
AB  - Konzistentno polje sila (CFF) za molekulsko modeliranje metaloporfirina, koje uključuje novouvedenu out-of-plane funkciju, parametrizovano je na osnovu kristalnih struktura Ni(II)-porfirina, nikal(II)-mono-tercbutilporfirina, nikal(II)-di-tercbutilporfirina, nikal(II)-tetrafenilporfirina i nikal(II)-oktaetil-tetrafenilporfirina. Ono je upotrebljeno za proučavanje uticaja veličine centralnog metalnog jona, periferne supstitucije kao i uticaja prisutnog supstrata na konformacije porfirinskog jezgra kod okta- i tetrahalogeno-tetrafenilporfirina sa Ni(II) i Tb(III). Jedinstvene ravnotežne strukture, dobijene na osnovu molekulsko-mehaničkih proračuna velikog broja početnih struktura, pokazuju dobro slaganje sa kristalnim strukturama, kao i sa prethodno publikovanim rezultatima, ne samo u metričkim podacima, već i u načinu nabiranja porfirinskog jezgra. Metod normalne-koordinatne strukturne dekompozicije (NSD) omogućava da se na jednoznačan način opiše svaka optimizovana konformacija dobijena molekulsko-mehaničkim proračunima.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Consistent force field for metalloporphyrins
T1  - Konzistentno polje sila za metaloporfirine
VL  - 75
IS  - 12
SP  - 1671
EP  - 1683
DO  - 10.2298/JSC100701095A
ER  - 
@article{
author = "Anđelković, Ljubica and Grubišić, Sonja and Đorđević, Ivana and Zlatar, Matija and Niketić, Svetozar R. and Gruden-Pavlović, Maja",
year = "2010",
abstract = "Molecular mechanics (MM) calculations to analyze the puckering of metalloporphyrins isolated and adsorbed on a graphite layer (0001) as a function of metal ion size and the peripheral substitution are presented. The Consistent Force Field (CFF) program was used with new parameters for metalloporphyrins, which included an out-of-plane bending function. Normal-coordinate structural decomposition (NSD) analysis was performed on the equilibrium structures obtained by the MM calculations. The conformers were also stereo-chemically characterized and compared with available experimental data and with conformers obtained in a previous MM study., Konzistentno polje sila (CFF) za molekulsko modeliranje metaloporfirina, koje uključuje novouvedenu out-of-plane funkciju, parametrizovano je na osnovu kristalnih struktura Ni(II)-porfirina, nikal(II)-mono-tercbutilporfirina, nikal(II)-di-tercbutilporfirina, nikal(II)-tetrafenilporfirina i nikal(II)-oktaetil-tetrafenilporfirina. Ono je upotrebljeno za proučavanje uticaja veličine centralnog metalnog jona, periferne supstitucije kao i uticaja prisutnog supstrata na konformacije porfirinskog jezgra kod okta- i tetrahalogeno-tetrafenilporfirina sa Ni(II) i Tb(III). Jedinstvene ravnotežne strukture, dobijene na osnovu molekulsko-mehaničkih proračuna velikog broja početnih struktura, pokazuju dobro slaganje sa kristalnim strukturama, kao i sa prethodno publikovanim rezultatima, ne samo u metričkim podacima, već i u načinu nabiranja porfirinskog jezgra. Metod normalne-koordinatne strukturne dekompozicije (NSD) omogućava da se na jednoznačan način opiše svaka optimizovana konformacija dobijena molekulsko-mehaničkim proračunima.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Consistent force field for metalloporphyrins, Konzistentno polje sila za metaloporfirine",
volume = "75",
number = "12",
pages = "1671-1683",
doi = "10.2298/JSC100701095A"
}
Anđelković, L., Grubišić, S., Đorđević, I., Zlatar, M., Niketić, S. R.,& Gruden-Pavlović, M.. (2010). Consistent force field for metalloporphyrins. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 75(12), 1671-1683.
https://doi.org/10.2298/JSC100701095A
Anđelković L, Grubišić S, Đorđević I, Zlatar M, Niketić SR, Gruden-Pavlović M. Consistent force field for metalloporphyrins. in Journal of the Serbian Chemical Society. 2010;75(12):1671-1683.
doi:10.2298/JSC100701095A .
Anđelković, Ljubica, Grubišić, Sonja, Đorđević, Ivana, Zlatar, Matija, Niketić, Svetozar R., Gruden-Pavlović, Maja, "Consistent force field for metalloporphyrins" in Journal of the Serbian Chemical Society, 75, no. 12 (2010):1671-1683,
https://doi.org/10.2298/JSC100701095A . .
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