| Integrated production of lactic acid and biomass on distillery stillage. | |
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MedLine Citation:
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PMID: 23114502 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The possibilities of parallel lactic acid and biomass production in batch and fed-batch fermentation on distillery stillage from bioethanol production were studied. The highest lactic acid yield and productivity of 92.3 % and 1.49 g L(-1) h(-1) were achieved in batch fermentation with initial sugar concentration of 55 g L(-1). A significant improvement of the process was achieved in fed-batch fermentation where the concentration of lactic acid was increased to 47.6 % and volumetric productivity for 21 % over the batch process. A high number of Lactobacillus rhamnosus ATCC 7469 viable cells of 10(9) CFU ml(-1) was attained at the end of fed-batch fermentation. The survival of 92.9 % of L. rhamnosus cells after 3 h of incubation at pH 2.5 validated that the fermentation media remained after lactic acid removal could be used as a biomass-enriched animal feed thus making an additional value to the process. |
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Authors:
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Aleksandra P Djukić-Vuković; Ljiljana V Mojović; Maja S Vukašinović-Sekulić; Svetlana B Nikolić; Jelena D Pejin |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-11-1 |
Journal Detail:
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Title: Bioprocess and biosystems engineering Volume: - ISSN: 1615-7605 ISO Abbreviation: Bioprocess Biosyst Eng Publication Date: 2012 Nov |
Date Detail:
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Created Date: 2012-11-1 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101088505 Medline TA: Bioprocess Biosyst Eng Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Biochemical Engineering and Biotechnology, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000, Belgrade, Serbia, adjukic@tmf.bg.ac.rs. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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