Effect on Ultrafiltration of Lactic Acid Fermentation Broth by Using Inclined Tubes Sedimentation as Pretreatment

Li Juan Wang; Qun Hui Wang; Yan Li; Da Qi Cao

doi:10.4028/www.scientific.net/AMR.496.224

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 496Effect on Ultrafiltration of Lactic Acid...

Effect on Ultrafiltration of Lactic Acid Fermentation Broth by Using Inclined Tubes Sedimentation as Pretreatment

Abstract:

lactic acid, inclined tube sedimentation, ultrafiltration, flow velocity Abstract This study combined inclined tube sedimentation with ultrafiltration to remove the particles and protein in lactic acid fermentation broth. The influence of flow velocity on the extract property was investigated as well as the variations of flux, protein removal rate and lactic acid recovery in ultrafiltration. The result indicated that the inclined tube sedimentation was effective to remove the particles of fermentation broth. When the flow velocity was 0.031cm/s, the percentage of particles smaller than 10μm was 77%. The flow velocity 0.143cm/s in inclined tube sedimentation was more suitable in this study. SS removal rate can achieve 45.5% while protein removal rate and lactic acid recovery can be maintained above 90% in such situation

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Periodical:

Advanced Materials Research (Volume 496)

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224-229

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.496.224

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March 2012

Authors:

Li Juan Wang, Qun Hui Wang, Yan Li, Da Qi Cao

Keywords:

Flow Velocity, Inclined Tube Sedimentation, Lactic Acid, Ultrafiltration (UF)

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