Document Detail


Utilization of fermented barley extract obtained from a by-product of barley shochu for nisin production.
MedLine Citation:
PMID:  19000617     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Fermented barley extract (FBE) obtained from a barley shochu by-product (shochu kasu) and its ethanol fractions were evaluated as a medium and supplement, respectively, for nisin A production by Lactococcus lactis subsp. lactis ATCC 11454. A Brix 2.5 FBE medium supplemented with glucose provided a high level of nisin A production with a nisin yield comparable to that from a nutritionally rich laboratory medium (basal medium). By adding the ethanol-insoluble (EI) fraction of FBE to the basal medium, nisin A production was enhanced concomitant with an increase in bacterial cell growth, while the ethanol-soluble (ES) fraction had a negative effect on nisin A production. These findings indicate that FBE obtained from shochu kasu can be utilized as a preferable medium for nisin A production and could be converted into a value-added food product having preservative functions. The procedure developed in this study would promote recycling of shochu kasu.
Authors:
Yoshifumi Furuta; Naruyuki Maruoka; Akihiro Nakamura; Toshiro Omori; Kenji Sonomoto
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of bioscience and bioengineering     Volume:  106     ISSN:  1347-4421     ISO Abbreviation:  J. Biosci. Bioeng.     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-11-12     Completed Date:  2009-03-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888800     Medline TA:  J Biosci Bioeng     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  393-7     Citation Subset:  IM    
Affiliation:
Research Laboratory, Sanwa Shurui, Co. Ltd., 2231-1 Yamamoto, Usa, Oita 879-0495, Japan. furuta-y@kokuzo.co.jp
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MeSH Terms
Descriptor/Qualifier:
Bioreactors / microbiology
Culture Media / metabolism
Ethanol / chemistry
Fermentation*
Glucose / chemistry,  metabolism
Hordeum / metabolism*
Hydrogen-Ion Concentration
Lactates / chemistry
Lactic Acid / chemistry
Lactococcus lactis / metabolism
Nisin / biosynthesis*,  chemistry
Solubility
Temperature
Chemical
Reg. No./Substance:
0/Culture Media; 0/Lactates; 0/nisin A; 1414-45-5/Nisin; 50-21-5/Lactic Acid; 50-99-7/Glucose; 64-17-5/Ethanol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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