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

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- 바이오정밀화학
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논문

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

학술지

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

저자명

Hafuka, A.; Sakaida, K.; Satoh, H.; Takahashi, M.; Watanabe, Y.; Okabe, S.

초록

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, 0.45μm) 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 259h (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.

발행연도

2011

발행기관

Elsevier Applied Science

ISSN

0960-8524

권

102

호

페이지

pp.3551-3553

DOI