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Effect of feeding regimens on polyhydroxybutyrate production from food wastes by Cupriavidus necator

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Title: Effect of feeding regimens on polyhydroxybutyrate production from food wastes by Cupriavidus necator
Authors: Hafuka, Akira Browse this author
Sakaida, Kenji Browse this author
Satoh, Hisashi Browse this author →KAKEN DB
Takahashi, Masahiro Browse this author
Watanabe, Yoshimasa Browse this author
Okabe, Satoshi Browse this author
Keywords: Polyhydroxybutyrate
Food wastes
Filtration
Feeding regimens
Continuous PHB production
Issue Date: Feb-2011
Publisher: ELSEVIER SCI LTD
Journal Title: BIORESOURCE TECHNOLOGY
Volume: 102
Issue: 3
Start Page: 3551
End Page: 3553
Publisher DOI: 10.1016/j.biortech.2010.09.018
PMID: 20870404
Abstract: We investigated the effects of different feeding regimens (1-pulse, stepwise, and continuous) of fermented food-waste liquid on polyhydroxybutyrate (PHB) production. The fermentation liquid was filtered with a membrane filter (pore size, 0.45 mu m) to remove anaerobic microorganisms and solids and used as a carbon source for Cupriavidus necator. One-pulse feeding yielded the highest cell concentration of C. necator. However, the PHB concentration was higher in the stepwise- and continuous-feeding regimens. Therefore, the continuous-feeding regimen was used for continuous PHB production. PHB could be produced over 259 h (8 draw-fill cycles) with a maximal PHB content of 87%, but the PHB concentration and content decreased with an increase in the operation time. (C) 2010 Elsevier Ltd. All rights reserved.
Type: article (author version)
URI: http://hdl.handle.net/2115/44977
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 佐藤 久

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