山东化工
山東化工
산동화공
SHANDONG CHEMICAL INDUSTRY
2014年
7期
24-27
,共4页
胞苷三磷酸%啤酒酵母%生物转化%最优条件
胞苷三燐痠%啤酒酵母%生物轉化%最優條件
포감삼린산%비주효모%생물전화%최우조건
cytidine triphosphate%saccharomyces cerevisiae%biotransformation%optimal condition
以胞苷一磷酸(CMP)为底物,利用啤酒酵母细胞内的酶系催化合成了胞苷三磷酸(CTP),实验采用高效液相色谱分析了底物浓度、葡萄糖浓度、磷酸盐浓度、酵母量、反应时间等因素对转化反应的影响。结果表明,最佳转化条件为:CMP 20 mmol/ L、葡萄糖150 mmol/ L、磷酸盐250 mmol/ L、酵母量0.3 g/ mL、反应时间75 min。在此条件下,CTP 的平均产率可高达59.01%。
以胞苷一燐痠(CMP)為底物,利用啤酒酵母細胞內的酶繫催化閤成瞭胞苷三燐痠(CTP),實驗採用高效液相色譜分析瞭底物濃度、葡萄糖濃度、燐痠鹽濃度、酵母量、反應時間等因素對轉化反應的影響。結果錶明,最佳轉化條件為:CMP 20 mmol/ L、葡萄糖150 mmol/ L、燐痠鹽250 mmol/ L、酵母量0.3 g/ mL、反應時間75 min。在此條件下,CTP 的平均產率可高達59.01%。
이포감일린산(CMP)위저물,이용비주효모세포내적매계최화합성료포감삼린산(CTP),실험채용고효액상색보분석료저물농도、포도당농도、린산염농도、효모량、반응시간등인소대전화반응적영향。결과표명,최가전화조건위:CMP 20 mmol/ L、포도당150 mmol/ L、린산염250 mmol/ L、효모량0.3 g/ mL、반응시간75 min。재차조건하,CTP 적평균산솔가고체59.01%。
Cytidine triphosphate(CTP)produced from cytidine monophosphate(CMP)utilizing enzymes in saccharomyces cerevisiae was studied. The effects of some key factors,such as the concentration of CMP,glucose,phosphate,yeast cells and reaction time on the biotransformation process were studied by HPLC method. Results showed that the optimal conditions were obtained as follow:20 mmol/ L CMP,150 mmol/ L glucose,250 mmol/ L phosphate,0. 3 g/ mL yeast and reaction time 75 min. Under optimal conditions,yield of CTP was up to 59. 01% .