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Potential of Datura innoxia cell suspension cultures for glucosylating hydroquinone

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Abstract

The efficiency of glucosylation of hydroquinone by Datura innoxia cell suspension cultures was investigated. The yield of arbutin was 2.4 g/l medium when 10 mM of hydroquinone was added to a suspension culture that was then incubated for 24 h, but the yield decreased at a higher concentration. This decrease, which could not be overcome by changing the growth phase or increasing the cell density used, could be avoided by the repeated addition of a low concentration of hydroquinone over 3 days. This increased the yield of arbutin to 4.2 g/l at the usual cell density and to 7.1 g/l at a high density. The kinetics of this reaction were explained by the Michaelis-Menten formula. The theoretical maximum velocity of the arbutin-forming reaction was estimated as 0.77 mg/h/g. The velocity increased linearly up to a cell density of 300 g/l under standard aeration, the theoretical maximum yield of arbutin being calculated to be 5.5 g/l/day.

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References

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Author information

Correspondence to Toshiyuki Suzuki.

Additional information

Communicated by F. Constabel

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Suzuki, T., Yoshioka, T., Tabata, M. et al. Potential of Datura innoxia cell suspension cultures for glucosylating hydroquinone. Plant Cell Reports 6, 275–278 (1987). https://doi.org/10.1007/BF00271997

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Keywords

  • Cell Suspension
  • Cell Density
  • Growth Phase
  • Suspension Culture
  • Maximum Yield