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Ethanol Production from Different Intermediates of Sugar Beet Processing

Mladen Pavlečić ; Zavod za biokemijsko inženjerstvo, Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Pierottijeva 6/IV, HR-10000 Zagreb, Hrvatska
Ivna Vrana ; Zavod za biokemijsko inženjerstvo, Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Pierottijeva 6/IV, HR-10000 Zagreb, Hrvatska
Kristijan Vibovec ; Zavod za biokemijsko inženjerstvo, Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Pierottijeva 6/IV, HR-10000 Zagreb, Hrvatska
Mirela Ivančić Šantek ; Zavod za biokemijsko inženjerstvo, Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Pierottijeva 6/IV, HR-10000 Zagreb, Hrvatska
Predrag Horvat ; Zavod za biokemijsko inženjerstvo, Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Pierottijeva 6/IV, HR-10000 Zagreb, Hrvatska
Božidar Šantek orcid.org/0000-0001-9583-534X ; Zavod za biokemijsko inženjerstvo, Prehrambeno-biotehnološki fakultet, Sveučilište u Zagrebu, Pierottijeva 6/IV, HR-10000 Zagreb, Hrvatska

Sažetak

In this investigation, the production of ethanol from the raw sugar beet juice and raw sugar beet cossettes has been studied. For ethanol production from the raw sugar beet juice, batch and fed-batch cultivation techniques in the stirred tank bioreactor were used, while batch ethanol production from the raw sugar beet cossettes was carried out in horizontal rotating tubular bioreactor (HRTB). In both cases, Saccharomyces cerevisiae was used as a production microorganism. During batch ethanol production from the raw sugar beet juice, ethanol yield was 59.89 g/L and production efficiency 78.8 %, and in fed-batch process the yield was 92.78 g/L and efficiency 93.4 %. At the same time, ethanol production in HRTB from the raw sugar beet cossettes with inoculum of 16.7 % V/m (raw sugar beet cossettes) resulted in the highest ethanol yield of 54.53 g/L and production efficiency of 79.5 %. The obtained results clearly show that both intermediates of sugar beet processing can be successfully used for ethanol production.

Ključne riječi

ethanol; fermentation; raw sugar beet juice; raw sugar beet cossettes; stirred tank bioreactor; horizontal rotating tubular reactor (HRTB)

Hrčak ID:

57568

URI

https://hrcak.srce.hr/57568

Datum izdavanja:

9.8.2010.

Podaci na drugim jezicima: hrvatski

Posjeta: 5.832 *