동아시아식생활학회지 (Journal of the East Asian Society of Dietary Life)

  • 제5권3호
  • /
  • Pages.233-238
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  • 1995
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  • 1225-6781(pISSN)
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  • 2288-8802(eISSN)
동아시아식생활학회 (The East Asian Society of Dietary Life)
권호 표지

Candida utilis에 의한 Cytidine 5'-diphosphate Choline의 발효생산

Fermentative Production of Cytidine 5'-diphosphate Choline by Candida utilis

  • 발행 : 1995.12.01
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초록

CDP-choline is known as an intermediate of lecithin biosynthesis, and as an important drug for nervous diseases of the brain, For the bioconversion of CMP and choline to CDP-choline, ATP is required as an energy source. In these studies, the biosynthetic reaction of CDP-choline was coupled with ATP regenerating system by glycolysis. As a microorganism containing the highest conversion activity of CMP and choline to CDP-choline, Candida utilis ATCC 42416 was selected. The optimum reaction condition were 50mM choline chloride, 20mM CMP, 100mM potassium phosphate (pH8.0), 300mM glucose, 50mM MgSO4, 10% dried cells with shaking incubation at 3$0^{\circ}C$. The reaction was thus performed for 10 hours under the above optimum conditions. The concentration of CDP-choline was 16mM(80% in conversion ratio).

키워드

참고문헌

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