Fermentation of lactose to ethanol in cheese whey permeate and concentrated permeate by engineered Escherichia coli
作者: Lorenzo PasottiSusanna ZuccaMichela CasanovaGiuseppina MicoliMaria Gabriella Cusella De AngelisPaolo Magni
作者单位: 1University of Pavia
2Centro di Ricerche Ambientali, IRCCS Fondazione Salvatore Maugeri
刊名: BMC Biotechnology, 2017, Vol.17 (1)
来源数据库: Springer Nature Journal
DOI: 10.1186/s12896-017-0369-y
关键词: EthanolLactoseFermentationEscherichia coliWhey permeate
英文摘要: Whey permeate is a lactose-rich effluent remaining after protein extraction from milk-resulting cheese whey, an abundant dairy waste. The lactose to ethanol fermentation can complete whey valorization chain by decreasing dairy waste polluting potential, due to its nutritional load, and producing a biofuel from renewable source at the same time. Wild type and engineered microorganisms have been proposed as fermentation biocatalysts. However, they present different drawbacks (e.g., nutritional supplements requirement, high transcriptional demand of recombinant genes, precise oxygen level, and substrate inhibition) which limit the industrial attractiveness of such conversion process. In this work, we aim to engineer a new bacterial biocatalyst, specific for dairy waste fermentation.
原始语种摘要: Whey permeate is a lactose-rich effluent remaining after protein extraction from milk-resulting cheese whey, an abundant dairy waste. The lactose to ethanol fermentation can complete whey valorization chain by decreasing dairy waste polluting potential, due to its nutritional load, and producing a biofuel from renewable source at the same time. Wild type and engineered microorganisms have been proposed as fermentation biocatalysts. However, they present different drawbacks (e.g., nutritional supplements requirement, high transcriptional demand of recombinant genes, precise oxygen level, and substrate inhibition) which limit the industrial attractiveness of such conversion process. In this work, we aim to engineer a new bacterial biocatalyst, specific for dairy waste fermentation.
全文获取路径: Springer Nature  (合作)
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影响因子:2.165 (2012)

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关键词翻译
关键词翻译
  • permeate 渗透
  • Fermentation 发酵
  • concentrated 集中的
  • waste 岩屑
  • valorization 政府稳定物价之措施
  • effluent 
  • fermentation 发酵
  • Escherichia 埃希氏菌属
  • ethanol 乙醇
  • lactose 乳糖