Deok-Kun Oh

Prof. Dr. Deok-Kun Oh

orcid

Research Focus & Metrics

Academic Career Length

21Years (2006-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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8 April 2010 in Applied Microbiology and Biotechnology
Verified
Journal Article
Closed access
PDF file
CPChang-Su Park
Chang-Su Park
MYMi-Hyun Yoo
Mi-Hyun Yoo
KNKyeong-Hwan Noh
Kyeong-Hwan Noh
DODeok-Kun Oh
Deok-Kun Oh

10 May 2007 in Applied Microbiology and Biotechnology
Verified
Journal Article
Closed access
PDF file
DODeok-Kun Oh
Deok-Kun Oh

27 November 2009 in Applied Microbiology and Biotechnology
Verified
Journal Article
Closed access
PDF file
APAh-Reum Park
Ah-Reum Park
DODeok-Kun Oh
Deok-Kun Oh

1 February 2006 in Applied and Environmental Microbiology
Verified
Journal Article
Closed access
PDF file
HKHye-Jung Kim
Hye-Jung Kim
EHEun-Kyung Hyun
Eun-Kyung Hyun
YKYeong-Su Kim
Yeong-Su Kim
YLYong-Joo Lee
Yong-Joo Lee
DODeok-Kun Oh
Deok-Kun Oh
The noncharacterized gene previously proposed as the d -tagatose 3-epimerase gene from Agrobacterium tumefaciens was cloned and expressed in Escherichia coli . The expressed enzyme was purified by three-step chromatography with a final specific activity of 8.89 U/mg. The molecular mass of the purified protein was estimated to be 132 kDa of four identical subunits. Mn 2+ significantly increased the epimerization rate from d -fructose to d -psicose. The enzyme exhibited maximal activity at 50°C and pH 8.0 with Mn 2+ . The turnover number ( k cat ) and catalytic efficiency ( k cat / K m ) of the enzyme for d -psicose were markedly higher than those for d -tagatose, suggesting that the enzyme is not d -tagatose 3-epimerase but d -psicose 3-epimerase. The equilibrium ratio between d -psicose and d -fructose was 32:68 at 30°C. d -Psicose was produced at 230 g/liter from 700-g/liter d -fructose at 50°C after 100 min, corresponding to a conversion yield of 32.9%.

1 April 2017 in Progress in Lipid Research
Verified
Journal Article
Closed access
MSMin-Ju Seo
Min-Ju Seo
DODeok-Kun Oh
Deok-Kun Oh

21 June 2011 in Applied Microbiology and Biotechnology
Verified
Journal Article
Closed access
PDF file
CPChang-Su Park
Chang-Su Park
JKJung-Eun Kim
Jung-Eun Kim
JCJin-Geun Choi
Jin-Geun Choi
DODeok-Kun Oh
Deok-Kun Oh