Molecules and Cells

, Volume 36, Issue 4, pp 355–361 | Cite as

Enzymatic synthesis of apigenin glucosides by glucosyltransferase (YjiC) from Bacillus licheniformis DSM 13

  • Rit Bahadur Gurung
  • Eun-Hee Kim
  • Tae-Jin Oh
  • Jae Kyung Sohng
Research Article


Apigenin, a member of the flavone subclass of flavonoids, has long been considered to have various biological activities. Its glucosides, in particular, have been reported to have higher water solubility, increased chemical stability, and enhanced biological activities. Here, the synthesis of apigenin glucosides by the in vitro glucosylation reaction was successfully performed using a UDP-glucosyltransferase YjiC, from Bacillus licheniformis DSM 13. The glucosylation has been confirmed at the phenolic groups of C-4′ and C-7 positions ensuing apigenin 4′-O-glucoside, apigenin 7-O-glucoside and apigenin 4′,7-O-diglucoside as the products leaving the C-5 position unglucosylated. The position of glucosylation and the chemical structures of glucosides were elucidated by liquid chromatography/mass spectroscopy and nuclear magnetic resonance spectroscopy. The parameters such as pH, UDP glucose concentration and time of incubation were also analyzed during this study.


apigenin enzymatic synthesis glucosides UDP-glucosyltransferase YjiC 


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Copyright information

© The Korean Society for Molecular and Cellular Biology and Springer Netherlands 2013

Authors and Affiliations

  • Rit Bahadur Gurung
    • 1
  • Eun-Hee Kim
    • 2
  • Tae-Jin Oh
    • 1
  • Jae Kyung Sohng
    • 1
  1. 1.Department of Pharmaceutical Engineering, Institute of Biomolecule ReconstructionSun Moon UniversityAsanKorea
  2. 2.Division of Magnetic ResonanceKorea Basic Science InstituteOchangKorea

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