Distillery Stillage as a New Substrate for Lactic Acid Production in Batch and Fed-batch Fermentation
Lactic acid and biomass production on distillery stillage - a by-product of bioethanol industry - was studied in this paper. Batch and fed-batch fermentation strategies for lactic acid production on distillery stillage were performed by Lactobacillus rhamnosus ATCC 7469. The most appropriate initial...
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AIDIC Servizi S.r.l.
2013-09-01
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Series: | Chemical Engineering Transactions |
Online Access: | https://www.cetjournal.it/index.php/cet/article/view/6203 |
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doaj-adaddfbb8da245f8b748a29615ab82672021-02-21T21:02:39ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162013-09-013410.3303/CET1334017Distillery Stillage as a New Substrate for Lactic Acid Production in Batch and Fed-batch FermentationA. Djukic-VukovicL. MojovicS. NikolicJ. PejinS. Kocic-TanackovK. MihajlovskiLactic acid and biomass production on distillery stillage - a by-product of bioethanol industry - was studied in this paper. Batch and fed-batch fermentation strategies for lactic acid production on distillery stillage were performed by Lactobacillus rhamnosus ATCC 7469. The most appropriate initial sugar concentration in the stillage was determined and different fermentation strategies were studied under selected conditions The most efficient sugar conversion in batch fermentation was attained with the initial sugar concentrationof 55 g/L. Enhancement in lactic acid productivity (up to 1.80 g/Lh) and a very high number of viable cells (108 CFU/mL) were achieved in fed-batch fermentation. The high lactic acid concentration attained in fed- batch fermentation opened a new possibility for stillage processing. In addition, extensive bacterial growthachieved during fermentation of the stillage could bring additional value to the process through utilization of the spent media for animal feed formulae enriched in lactic acid bacteria.https://www.cetjournal.it/index.php/cet/article/view/6203 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
A. Djukic-Vukovic L. Mojovic S. Nikolic J. Pejin S. Kocic-Tanackov K. Mihajlovski |
spellingShingle |
A. Djukic-Vukovic L. Mojovic S. Nikolic J. Pejin S. Kocic-Tanackov K. Mihajlovski Distillery Stillage as a New Substrate for Lactic Acid Production in Batch and Fed-batch Fermentation Chemical Engineering Transactions |
author_facet |
A. Djukic-Vukovic L. Mojovic S. Nikolic J. Pejin S. Kocic-Tanackov K. Mihajlovski |
author_sort |
A. Djukic-Vukovic |
title |
Distillery Stillage as a New Substrate for Lactic Acid Production in Batch and Fed-batch Fermentation |
title_short |
Distillery Stillage as a New Substrate for Lactic Acid Production in Batch and Fed-batch Fermentation |
title_full |
Distillery Stillage as a New Substrate for Lactic Acid Production in Batch and Fed-batch Fermentation |
title_fullStr |
Distillery Stillage as a New Substrate for Lactic Acid Production in Batch and Fed-batch Fermentation |
title_full_unstemmed |
Distillery Stillage as a New Substrate for Lactic Acid Production in Batch and Fed-batch Fermentation |
title_sort |
distillery stillage as a new substrate for lactic acid production in batch and fed-batch fermentation |
publisher |
AIDIC Servizi S.r.l. |
series |
Chemical Engineering Transactions |
issn |
2283-9216 |
publishDate |
2013-09-01 |
description |
Lactic acid and biomass production on distillery stillage - a by-product of bioethanol industry - was studied in this paper. Batch and fed-batch fermentation strategies for lactic acid production on distillery stillage were performed by Lactobacillus rhamnosus ATCC 7469. The most appropriate initial sugar concentration in the stillage was determined and different fermentation strategies were studied under selected conditions The most efficient sugar conversion in batch fermentation was attained with the initial sugar concentrationof 55 g/L. Enhancement in lactic acid productivity (up to 1.80 g/Lh) and a very high number of viable cells (108 CFU/mL) were achieved in fed-batch fermentation. The high lactic acid concentration attained in fed- batch fermentation opened a new possibility for stillage processing. In addition, extensive bacterial growthachieved during fermentation of the stillage could bring additional value to the process through utilization of the spent media for animal feed formulae enriched in lactic acid bacteria. |
url |
https://www.cetjournal.it/index.php/cet/article/view/6203 |
work_keys_str_mv |
AT adjukicvukovic distillerystillageasanewsubstrateforlacticacidproductioninbatchandfedbatchfermentation AT lmojovic distillerystillageasanewsubstrateforlacticacidproductioninbatchandfedbatchfermentation AT snikolic distillerystillageasanewsubstrateforlacticacidproductioninbatchandfedbatchfermentation AT jpejin distillerystillageasanewsubstrateforlacticacidproductioninbatchandfedbatchfermentation AT skocictanackov distillerystillageasanewsubstrateforlacticacidproductioninbatchandfedbatchfermentation AT kmihajlovski distillerystillageasanewsubstrateforlacticacidproductioninbatchandfedbatchfermentation |
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