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Possibility of L-(+)-lactic acid fermentation using malting, brewing, and oil production by-products
dc.creator | Pejin, Jelena | |
dc.creator | Radosavljević, Miloš | |
dc.creator | Pribić, Milana | |
dc.creator | Kocić-Tanackov, Sunčica | |
dc.creator | Mladenović, Dragana | |
dc.creator | Đukić-Vuković, Aleksandra | |
dc.creator | Mojović, Ljiljana | |
dc.date.accessioned | 2021-03-10T13:46:54Z | |
dc.date.available | 2021-03-10T13:46:54Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 0956-053X | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3940 | |
dc.description.abstract | Industrial by-products such as brewer's spent grain (BSG) hydrolysate, malt rootlets extract (MRE) and soybean meal extract (SME) were used for L-(+) lactic acid (LA) production by a pure L rhamnosus ATCC 7469 strain. The effect of the addition of MRE (10-50%) or SME (10-50%) in BSG hydrolysate on batch and fed-batch LA fermentation was evaluated. The addition of MRE and SME increased the concentration of free amino nitrogen (FAN) and essential minerals (Fe, Mg, Mn, and Zn), which had a positive effect on the fermentation. Also, the MRE addition significantly lowered C/N ration to a more favorable level for the efficient LA fermentation. In batch fermentation, the highest LA concentration (25.73 g/L), yield (86.31%), and volumetric productivity (0.95 g/L h(-1)), were obtained with the addition of 50% MRE. Further increase in LA concentration to 58.01 g/L, yield to 88.54%, and volumetric productivity to 1.19 h(-1) was achieved in fed-batch fermentation with addition of 50% MRE. A high optical purity of LA with 99.7% of L-(+)- isomer was obtained on the substrate based on industrial by-products. In addition, solid remains after BSG hydrolysis and MRE and SME preparation, together with the biomass of L. rhamnosus separated after the fermentation could be a good base for feed preparation. | en |
dc.publisher | Pergamon-Elsevier Science Ltd, Oxford | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/31017/RS// | |
dc.rights | restrictedAccess | |
dc.source | Waste Management | |
dc.subject | Lactic acid fermentation | en |
dc.subject | Brewer's spent grain | en |
dc.subject | Malt rootlets | en |
dc.subject | Soybean meal | en |
dc.subject | By-products utilization | en |
dc.title | Possibility of L-(+)-lactic acid fermentation using malting, brewing, and oil production by-products | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 163 | |
dc.citation.other | 79: 153-163 | |
dc.citation.rank | M21 | |
dc.citation.spage | 153 | |
dc.citation.volume | 79 | |
dc.identifier.doi | 10.1016/j.wasman.2018.07.035 | |
dc.identifier.pmid | 30343741 | |
dc.identifier.scopus | 2-s2.0-85050526008 | |
dc.identifier.wos | 000449133500016 | |
dc.type.version | publishedVersion |