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dc.creatorPejin, Jelena
dc.creatorRadosavljević, Miloš
dc.creatorKocić-Tanackov, Sunčica
dc.creatorMarković, Romeo
dc.creatorĐukić-Vuković, Aleksandra
dc.creatorMojović, Ljiljana
dc.date.accessioned2021-03-10T13:54:47Z
dc.date.available2021-03-10T13:54:47Z
dc.date.issued2019
dc.identifier.issn0046-9750
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/4062
dc.description.abstractThe application of by-products from the brewing industry in lactic acid (LA) production was investigated in order to replace expensive nitrogen sources (such as yeast extract) with cheaper and renewable nitrogenous materials such as brewer's yeast (BY). In this study, brewer's spent grain (BSG) hydrolysate was used for L-(+)-LA fermentation by Lactobacillus rhamnosus ATCC 7469. The effect of pH control during the fermentation and the addition of various BY contents (5-50 g/L) in BSG hydrolysate on fermentation parameters was evaluated. BY addition significantly increased free amino nitrogen (FAN) concentration (by 25.2% at 5 g/L to 616% at 50 g/L). A strong positive correlation between FAN concentration in the hydrolysate and concentration of L-(+)-LA produced was observed (correlation coefficient of 0.913). A high cell viability of L. rhamnosus ATCC 7469 (1.95-3.32 x 10(9) CFU/mL at the end of fermentation) was achieved in all fermentations with the addition of brewer's yeast. The addition of BY increased L-(+)-lactic acid yield and volumetric productivity up to 8.4% (5 g/L) and 48.3% (50 g/L). The highest L-(+)-LA yield (89%) and volumetric productivity (0.89 g/L h(-1)) were achieved in fermentation of BSG hydrolysate with 50 g/L of BY.en
dc.publisherInst Brewing, London
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/31017/RS//
dc.rightsrestrictedAccess
dc.sourceJournal of the Institute of Brewing
dc.subjectlactic acid fermentationen
dc.subjectbrewer's spent grainen
dc.subjectbrewer's yeasten
dc.subjectfree amino nitrogenen
dc.titleUse of spent brewer's yeast in L-(+) lactic acid fermentationen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage363
dc.citation.issue3
dc.citation.other125(3): 357-363
dc.citation.rankM23
dc.citation.spage357
dc.citation.volume125
dc.identifier.doi10.1002/jib.572
dc.identifier.scopus2-s2.0-85068083256
dc.identifier.wos000482457700008
dc.type.versionpublishedVersion


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