Results 101 to 110 of about 1,259 (144)

Systematic synthesis of rare sugars and stereospecific conversion via photocatalysis. [PDF]

open access: yesSci Rep
Patil PB   +7 more
europepmc   +1 more source

Overexpression of d-psicose 3-epimerase from Ruminococcus sp. in Escherichia coli and its potential application in d-psicose production

Biotechnology Letters, 2012
The D-psicose 3-epimerase (DPE) gene from Ruminococcus sp. was cloned and overexpressed in Escherichia coli. The recombinant protein was purified and characterized. It was optimally active at pH 7.5-8.0 and 60 °C. Activity was not dependent on the presence of metal ions; however, it became more thermostable with added Mn(2+).
Yueming Zhu   +6 more
semanticscholar   +3 more sources

Characterization of a d-psicose-producing enzyme, d-psicose 3-epimerase, from Clostridium sp.

Biotechnology Letters, 2013
The gene coding for D-psicose 3-epimerase (DPEase) from Clostridium sp. BNL1100 was cloned and expressed in Escherichia coli. The recombinant enzyme was purified by Ni-affinity chromatography. It was a metal-dependent enzyme and required Co(2+) as optimum cofactor.
W. Mu   +5 more
semanticscholar   +3 more sources

D‐psicose 3‐epimerase secretory overexpression, immobilization, and d‐psicose biotransformation, separation and crystallization

Journal of Chemical Technology & Biotechnology, 2018
AbstractBACKGROUNDD‐psicose is a rare sugar and exists in extremely small quantities in nature. It has important physiological functions and is allowed to be used as an ingredient in foods and dietary supplements. The aim of this study is to develop the biotransformation, separation and purification methods for highly efficient mass production of d ...
Can Li   +6 more
semanticscholar   +2 more sources

Efficient biosynthesis of D-allulose in Bacillus subtilis through D-psicose 3-epimerase translation modification.

International Journal of Biological Macromolecules, 2021
The combined catalysis of glucose isomerase (GI) and D-psicose 3-epimerase (DPEase) provided a convenient route for the direct synthesis of D-allulose from d-glucose, whose cost is lower than d-fructose. In the present research, the weak activity of DPEase was the key rate-limiting step and resulted in the accumulation of d-fructose in engineered ...
Jingyi Zhao   +5 more
semanticscholar   +3 more sources

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