prikaz prve stranice dokumenta Modelling the effect of different substrates and temperature on the growth and lactic acid production by Lactobacillus amylovorus DSM 20531T in batch process
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Modelling the effect of different substrates and temperature on the growth and lactic acid production by Lactobacillus amylovorus DSM 20531T in batch process
Food Technology and Biotechnology, 48 (2010), 3; 352-361. urn:nbn:hr:159:642072
Trontel, Antonija; Baršić, Vanda; Slavica, Anita; Šantek, Božidar; Novak, Srđan

Institucijski repozitorij: Repozitorij Prehrambeno-biotehnološkog fakulteta u Zagrebu

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Trontel, A., Baršić, V., Slavica, A., Šantek, B. i Novak, S.. Modelling the effect of different substrates and temperature on the growth and lactic acid production by Lactobacillus amylovorus DSM 20531T in batch process. Food Technology and Biotechnology, 48. (3), 352-361. Preuzeto s https://urn.nsk.hr/urn:nbn:hr:159:642072

Trontel, Antonija, et al. "Modelling the effect of different substrates and temperature on the growth and lactic acid production by Lactobacillus amylovorus DSM 20531T in batch process." Food Technology and Biotechnology, vol. 48, br. 3, str. 352-361. https://urn.nsk.hr/urn:nbn:hr:159:642072

Trontel, Antonija, Vanda Baršić, Anita Slavica, Božidar Šantek i Srđan Novak. "Modelling the effect of different substrates and temperature on the growth and lactic acid production by Lactobacillus amylovorus DSM 20531T in batch process." Food Technology and Biotechnology 48, br. 3 352-361. https://urn.nsk.hr/urn:nbn:hr:159:642072

Trontel, A., et al. 'Modelling the effect of different substrates and temperature on the growth and lactic acid production by Lactobacillus amylovorus DSM 20531T in batch process', Food Technology and Biotechnology, 48(3), str. 352-361. Preuzeto s: https://urn.nsk.hr/urn:nbn:hr:159:642072 (Datum pristupa: 30.12.2024.)

Trontel A, Baršić V, Slavica A, Šantek B, Novak S. Modelling the effect of different substrates and temperature on the growth and lactic acid production by Lactobacillus amylovorus DSM 20531T in batch process. Food Technology and Biotechnology [Internet]. [pristupljeno 30.12.2024.];48(3):352-361. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:159:642072

A. Trontel, V. Baršić, A. Slavica, B. Šantek i S. Novak, "Modelling the effect of different substrates and temperature on the growth and lactic acid production by Lactobacillus amylovorus DSM 20531T in batch process", Food Technology and Biotechnology, vol. 48, br. 3, str. 352-361. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:159:642072. [Citirano: 30.12.2024.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:159:642072
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Naslov (engleski)Modelling the effect of different substrates and temperature on the growth and lactic acid production by Lactobacillus amylovorus DSM 20531T in batch process
AutorAntonija Trontel
AutorVanda Baršić
AutorAnita Slavica
AutorBožidar Šantek
AutorSrđan Novak
Autorova ustanovaSveučilište u Zagrebu
Prehrambeno-biotehnološki fakultet
Znanstveno / umjetničko
područje, polje i grana		BIOTEHNIČKE ZNANOSTI
Biotehnologija
Sažetak (engleski)
Amylolytic lactic acid bacterium Lactobacillus amylovorus DSM 20531T utilised glucose, sucrose and starch as a sole carbon and energy source. The three substrates were completely depleted from MRS medium during batch cultivations carried out in a laboratory scale stirred tank bioreactor at constant temperature (40 °C) and pH value (5.5). Under the tested conditions, the bacterium was capable of conducting simultaneously starch hydrolysis and fermentation. A mixture of two stereoisomers, D-(–)- and L-(+)-lactic acid, was produced in all cases by highly efficient homofermentative bioprocess with 0.93 to 1 g of lactate produced per g of total (consumed) substrate. The effect of temperature on the kinetics of cell growth and lactic acid production by the amylolytic strain in the starch-containing medium was also investigated. Efficient simultaneous saccharification and fermentation (SSF) were obtained at 35, 40 and 45 °C with completely degraded complex carbohydrate in 8 to 12 h and the product yield coefficient in the range from 0.91 to 0.93 g/g. Maximum values for substrate consumption rate (0.89 h–1), maximum specific growth rate (0.87 h–1), product formation rate (2.01 h–1), and productivity of lactic acid (1.45 g/(L·h)) were obtained at 45 °C, while maximum biomass concentration (4.38 g/L) was attained at 40 °C. The ratio of the two stereoisomeric forms of produced lactic acid was strongly affected by the temperature. Unstructured kinetic model was used to describe the consumption of the three substrates, bacterial biomass formation and lactic acid production by L. amylovorus DSM 20531T. The dependence of biokinetic parameters on temperature was described by cardinal temperature model. The applied models successfully predicted all experimental data.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaFood Technology and Biotechnology
Brojčani podacivol. 48, br. 3, str. 352-361
p-ISSN1330-9862
e-ISSN1334-2606
URN:NBNurn:nbn:hr:159:642072
Datum prihvaćanja za tisak2010-04-09
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Imenovanje-Bez prerada 4.0 međunarodna (CC BY-ND 4.0)
Datum i vrijeme pohrane2019-02-22 08:48:25