Archives of Microbiology

, Volume 195, Issue 7, pp 463–471 | Cite as

Chryseobacterium yeoncheonense sp. nov., with ginsenoside converting activity isolated from soil of a ginseng field

  • Van-An Hoang
  • Yeon-Ju Kim
  • Ngoc Lan Nguyen
  • Deok-Chun Yang
Original Paper


A Gram-staining negative, aerobic, non-motile, non-flagellate, yellow-pigmented, rod-shaped bacterial strain, designated strain DCY67T, was isolated from ginseng field in Republic of Korea. Strain DCY67T contained β-glucosidase activity which converts ginsenoside Rb1 to compound K. Optimum growth of DCY67T occurred at 30 °C and pH 6.0–6.5. Analysis of the 16S rRNA gene sequences revealed that strain DCY67T belonged to the family Flavobacteriaceae and was most closely related to Chryseobacterium ginsenosidimutans THG 15T (97.5 %). The genomic DNA G+C content was 36.1 mol%. The predominant quinones were MK-6 (90.9 %) and MK-7 (9.15 %). The major fatty acids were iso-C15:0, summed feature 3 (containing C16:1 ω7c and/or C16:1 ω6c) and iso-C17:0 3-OH. On the basis of these phenotypic, genotypic and chemotaxonomic studies, strain DCY67T represents a novel species of the genus Chryseobacterium, for which, name Chryseobacterium yeoncheonense sp. nov. proposed the type strain is DCY67T (=KCTC 32090T = JCM 18516T).


Taxonomy Bacteroidetes Chryseobacterium yeoncheonense Ginsenoside bioconversion 



This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (#20110015122).

Supplementary material

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Supplementary material 1 (PPTX 571 kb)
203_2013_898_MOESM2_ESM.docx (25 kb)
Supplementary material 2 (DOCX 24 kb)


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Korean Ginseng Center and Ginseng Genetic Resource BankKyung Hee UniversityGiheung-gu, Yongin-siRepublic of Korea

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