Utilization of Fermented Barley Extract Obtained from a By-product of Barley Shochu for Nisin Production

Yoshifumi Furuta, Naruyuki Maruoka, Akihiro Nakamura, Toshiro Omori, Kenji Sonomoto

研究成果: ジャーナルへの寄稿学術誌査読

23 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)393-397
ページ数5
ジャーナルJournal of Bioscience and Bioengineering
106
4
DOI
出版ステータス出版済み - 10月 2008

!!!All Science Journal Classification (ASJC) codes

  • バイオテクノロジー
  • バイオエンジニアリング
  • 応用微生物学とバイオテクノロジー

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