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公开(公告)号:US20180273994A1
公开(公告)日:2018-09-27
申请号:US15524362
申请日:2015-11-06
发明人: Seon-Won KIM , Min-Jin CHOI , Seong-Hee JEONG , Dae-Yun LEE
CPC分类号: C12P19/02 , B01D15/08 , C12P7/18 , C12Y101/01067 , C12Y101/01255 , C13K13/007
摘要: A method for obtaining psicose from a mixture of fructose and psicose includes adding a mannitol dehydrogenase to a mixture of fructose and psicose to convert fructose into mannitol, and separating the mannitol from the psicose. Accordingly, the psicose can be more easily isolated from the mannitol with high efficiency by using the method.
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公开(公告)号:US20170298400A1
公开(公告)日:2017-10-19
申请号:US15516342
申请日:2015-10-01
发明人: Seon-Won KIM , Min-Jin CHOI , Seong-Hee JEONG , Dae-Yun LEE
CPC分类号: C12P19/02 , C12N9/90 , C12P19/24 , C12Y501/03 , Y02P20/582
摘要: A method of preparing D-psicose includes a step of reacting D-fructose as a substrate and an epimerase thereof in microorganisms at a temperature of 40° C. or higher. The method may further includes inducing the microorganisms to have resting cells by culturing the microorganisms in a medium not containing the D-fructose before the reaction. The method of preparing D-psicose may significantly improve the production amount of D-psicose and production rate of D-psicose.
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