Djukić-Vuković, Aleksandra

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Utilization of stillages from bioethanol production from various substrates

Djukić-Vuković, Aleksandra; Mladenović, Dragana; Nikolić, Valentina; Kocic-Tanackov, Suncica; Pejin, Jelena; Mojović, Ljiljana

(Belgrade : Association of the Chemical Engineers of Serbia, 2019)

TY  - JOUR
AU  - Djukić-Vuković, Aleksandra
AU  - Mladenović, Dragana
AU  - Nikolić, Valentina
AU  - Kocic-Tanackov, Suncica
AU  - Pejin, Jelena
AU  - Mojović, Ljiljana
PY  - 2019
UR  - http://rik.mrizp.rs/handle/123456789/860
AB  - Stillage is a main by-product of the bioethanol industry and, depending on the
origin of substrates for bioethanol production, it can be a significant pollutant
affecting the profitability of bioethanol production. Directing the stillage towards
the production of bio-based chemicals or high-quality feed is a preferred stra-
tegy. In this paper, a complete utilization of stillages of different origins was
assessed. Thin stillages from bioethanol production from molasses, wasted
bread and corn were chemically characterized, evaluated and compared as
substrates for lactic acid (LA) and probiotic biomass production by Lactobacil-
lus rhamnosus ATCC 7469, while solid fractions of wasted bread and corn stil-
lages were analyzed for feed. The impact of pH control using CaCO 3 or NaOH
was also examined, both in terms of LA production and valorization of the
remains generated in each process.A maximal LA productivity of 1.14 g/(L h)
was obtained on thin wasted bread stillage with pH control by NaOH while the
number of viable probiotic bacterial cells was above 109 CFU/mL. The com-
position of the solid fraction of the wasted bread stillage was complementary
with the needs of monogastric animals, while the solid fraction of corn stillage
was more adequate for the nutritional requirements of ruminants.
AB  - Džibra je najznačajniji otpadni ili sporedni proizvod industrije bioetanola. U zavisnosti od
porekla supstrata koji se koriste u proizvodnji bioetanola, može biti značajan zagađivač,
pa utiče na profitabilnost proizvodnje bioetanola. Upotreba džibre u biotehnološkim
postupcima proizvodnje hemikalija ili visoko vredne stočne hrane je poželjna strategija
za smanjenje negativnih efekata džibre na životnu sredinu i profitabilnost proizvodn je
bioetanola. U ovom radu je analizirana mogućnost kompletnog iskorišćenja džibre.
Tečne džibre iz proizvodnje bioetanola na melasi, otpadnom hlebu i kukuruzu su
hemijski okarakterisane i upoređene kao supstrati za proizvodnju mlečne kiseline (MK) i
probiotske biomase soja Lactobacillus rhamnosus ATCC 7469, dok je čvrsti ostatak
hlebne i kukuruzne džibre analiziran kao hrana za životinje. Takođe je ispitan uticaj pH
kontrole pomoću CaCO3 ili NaOH sa aspekta proizvodnje MK i sa aspekta iskorišćenja
ostataka iz oba procesa. Maksimalna produktivnost MK od 1,14 g/(L h) je dobijena na
tečnoj džibri iz otpadnog hleba sa pH kontorolom pomoću NaOH, dok je broj živih pro-
biotskih bakterija bio preko 10 9 CFU/mL. Rezultati su pokazali da je sastav čvrste frak-
cije otpadne hlebne džibre komplementaran sa potrebama monogastričnih životinja, dok
sastav čvrste frakcije kukuruzne džibre više odgovara nutritivnim potrebama preživara.
PB  - Belgrade : Association of the Chemical Engineers of Serbia
T2  - Chemical Industry and Chemical Engineering Quarterly
T1  - Utilization of stillages from bioethanol production from various substrates
T1  - Mogućnosti upotrebe džibre iz proizvodnje bioetanola na različitim supstratima
VL  - 25
IS  - 2
SP  - 97
EP  - 106
DO  - 10.2298/CICEQ180123023D
ER  - 
@article{
author = "Djukić-Vuković, Aleksandra and Mladenović, Dragana and Nikolić, Valentina and Kocic-Tanackov, Suncica and Pejin, Jelena and Mojović, Ljiljana",
year = "2019",
abstract = "Stillage is a main by-product of the bioethanol industry and, depending on the
origin of substrates for bioethanol production, it can be a significant pollutant
affecting the profitability of bioethanol production. Directing the stillage towards
the production of bio-based chemicals or high-quality feed is a preferred stra-
tegy. In this paper, a complete utilization of stillages of different origins was
assessed. Thin stillages from bioethanol production from molasses, wasted
bread and corn were chemically characterized, evaluated and compared as
substrates for lactic acid (LA) and probiotic biomass production by Lactobacil-
lus rhamnosus ATCC 7469, while solid fractions of wasted bread and corn stil-
lages were analyzed for feed. The impact of pH control using CaCO 3 or NaOH
was also examined, both in terms of LA production and valorization of the
remains generated in each process.A maximal LA productivity of 1.14 g/(L h)
was obtained on thin wasted bread stillage with pH control by NaOH while the
number of viable probiotic bacterial cells was above 109 CFU/mL. The com-
position of the solid fraction of the wasted bread stillage was complementary
with the needs of monogastric animals, while the solid fraction of corn stillage
was more adequate for the nutritional requirements of ruminants., Džibra je najznačajniji otpadni ili sporedni proizvod industrije bioetanola. U zavisnosti od
porekla supstrata koji se koriste u proizvodnji bioetanola, može biti značajan zagađivač,
pa utiče na profitabilnost proizvodnje bioetanola. Upotreba džibre u biotehnološkim
postupcima proizvodnje hemikalija ili visoko vredne stočne hrane je poželjna strategija
za smanjenje negativnih efekata džibre na životnu sredinu i profitabilnost proizvodn je
bioetanola. U ovom radu je analizirana mogućnost kompletnog iskorišćenja džibre.
Tečne džibre iz proizvodnje bioetanola na melasi, otpadnom hlebu i kukuruzu su
hemijski okarakterisane i upoređene kao supstrati za proizvodnju mlečne kiseline (MK) i
probiotske biomase soja Lactobacillus rhamnosus ATCC 7469, dok je čvrsti ostatak
hlebne i kukuruzne džibre analiziran kao hrana za životinje. Takođe je ispitan uticaj pH
kontrole pomoću CaCO3 ili NaOH sa aspekta proizvodnje MK i sa aspekta iskorišćenja
ostataka iz oba procesa. Maksimalna produktivnost MK od 1,14 g/(L h) je dobijena na
tečnoj džibri iz otpadnog hleba sa pH kontorolom pomoću NaOH, dok je broj živih pro-
biotskih bakterija bio preko 10 9 CFU/mL. Rezultati su pokazali da je sastav čvrste frak-
cije otpadne hlebne džibre komplementaran sa potrebama monogastričnih životinja, dok
sastav čvrste frakcije kukuruzne džibre više odgovara nutritivnim potrebama preživara.",
publisher = "Belgrade : Association of the Chemical Engineers of Serbia",
journal = "Chemical Industry and Chemical Engineering Quarterly",
title = "Utilization of stillages from bioethanol production from various substrates, Mogućnosti upotrebe džibre iz proizvodnje bioetanola na različitim supstratima",
volume = "25",
number = "2",
pages = "97-106",
doi = "10.2298/CICEQ180123023D"
}
Djukić-Vuković, A., Mladenović, D., Nikolić, V., Kocic-Tanackov, S., Pejin, J.,& Mojović, L.. (2019). Utilization of stillages from bioethanol production from various substrates. in Chemical Industry and Chemical Engineering Quarterly
Belgrade : Association of the Chemical Engineers of Serbia., 25(2), 97-106.
https://doi.org/10.2298/CICEQ180123023D
Djukić-Vuković A, Mladenović D, Nikolić V, Kocic-Tanackov S, Pejin J, Mojović L. Utilization of stillages from bioethanol production from various substrates. in Chemical Industry and Chemical Engineering Quarterly. 2019;25(2):97-106.
doi:10.2298/CICEQ180123023D .
Djukić-Vuković, Aleksandra, Mladenović, Dragana, Nikolić, Valentina, Kocic-Tanackov, Suncica, Pejin, Jelena, Mojović, Ljiljana, "Utilization of stillages from bioethanol production from various substrates" in Chemical Industry and Chemical Engineering Quarterly, 25, no. 2 (2019):97-106,
https://doi.org/10.2298/CICEQ180123023D . .
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