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Efficient utilization of inulin and glycerol as fermentation substrates in erythritol and citric acid production using Yarrowia lipolytica expressing inulinase

Rakicka, Magdalena ; Lazar, Zbigniew ; Rywińska, Anita ; Rymowicz, Waldemar

Chemical papers, 2016-11, Vol.70 (11), p.1452-1459 [Periódico revisado por pares]

Cham: Springer International Publishing

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  • Título:
    Efficient utilization of inulin and glycerol as fermentation substrates in erythritol and citric acid production using Yarrowia lipolytica expressing inulinase
  • Autor: Rakicka, Magdalena ; Lazar, Zbigniew ; Rywińska, Anita ; Rymowicz, Waldemar
  • Assuntos: Biochemistry ; Biotechnology ; Chemistry ; Chemistry and Materials Science ; Chemistry/Food Science ; citric acid ; erythritol ; glycerol ; Industrial Chemistry/Chemical Engineering ; inulin ; Materials Science ; Medicinal Chemistry ; Original Paper
  • É parte de: Chemical papers, 2016-11, Vol.70 (11), p.1452-1459
  • Descrição: Inulin and glycerol were used as substrates for efficient erythritol and citric acid production by newly engineered Yarrowia lipolytica strains. Hydrolysis of inulin by the Y. lipolytica Wratislavia K1 strain was established by expressing the Kluyveromyces marxianus INU1 gene. Erythritol was produced in two stages: inulin was used for biomass formation, followed by erythritol biosynthesis initiated by glycerol addition. The highest titer of erythritol obtained, 120.9 g L −1 with the yield of 0.6 g g −1 , was produced by the K1 INU 6 strain. Moreover, the K1 INU 6 strain in fed-batch culture produced a high amount of citric acid: 105.2 g L −1 after 235 h from 200 g L −1 of inulin. Maximum activity of inulinase during this culture was 14000 U g −1 of cell dry mass. The presented study proves the potential of new Y. lipolytica transformants for efficient erythritol and citric acid production from inexpensive raw materials such as inulin and glycerol.
  • Editor: Cham: Springer International Publishing
  • Idioma: Inglês;Alemão;Russo;Eslovaco
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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