Acremonium chrysogenum is an important filamentous fungus which produces cephalosporin C in industry.This review summarized the study on genetic engineering of Acremonium chrysogenum,including biosynthesis and regulat...Acremonium chrysogenum is an important filamentous fungus which produces cephalosporin C in industry.This review summarized the study on genetic engineering of Acremonium chrysogenum,including biosynthesis and regulation for fermentation of cephalosporin C,molecular techniques,molecular breeding and transcriptomics of Acremonium chrysogenum.We believe with all the techniques available and full genomic sequence,the industrial strain of Acremonium chrysogenum can be genetically modified to better serve the pharmaceutical industry.展开更多
建立了一种采用超声辅助提取(UAE)、强阴离子交换固相萃取(SAX-SPE)净化、高效液相色谱(HPLC)测定土壤中残留头孢菌素C(CPC)简单、快速方法。样品以超纯水为提取剂,超声辅助提取,SPE柱子以3 m L甲醇和3 m L水活化,采用5 m L的10%甲醇水...建立了一种采用超声辅助提取(UAE)、强阴离子交换固相萃取(SAX-SPE)净化、高效液相色谱(HPLC)测定土壤中残留头孢菌素C(CPC)简单、快速方法。样品以超纯水为提取剂,超声辅助提取,SPE柱子以3 m L甲醇和3 m L水活化,采用5 m L的10%甲醇水溶液作为淋洗液,2 m L的5%甲酸水溶液/甲醇溶液(体积比50∶50)进行洗脱,高效液相色谱紫外检测器(HPLC-PDA)测定,检测波长λ=254 nm,柱温30℃,流动相为0.1%甲酸水溶液/甲醇溶液(体积比95∶5)对土壤中不同加标浓度的CPC进行检测,方法的回收率在77.9%~98.9%,标准偏差范围为5.0%~6.3%(n=5),方法检出限(LOD)为340.4μg/kg,定量限(LOQ)为1126.8μg/kg。同时采用此方法检测分析新疆某药厂附近阳性土壤样品,不同批次土壤样品结果分别为:检出(低于定量限)、1532.1μg/kg。展开更多
文摘Acremonium chrysogenum is an important filamentous fungus which produces cephalosporin C in industry.This review summarized the study on genetic engineering of Acremonium chrysogenum,including biosynthesis and regulation for fermentation of cephalosporin C,molecular techniques,molecular breeding and transcriptomics of Acremonium chrysogenum.We believe with all the techniques available and full genomic sequence,the industrial strain of Acremonium chrysogenum can be genetically modified to better serve the pharmaceutical industry.
文摘建立了一种采用超声辅助提取(UAE)、强阴离子交换固相萃取(SAX-SPE)净化、高效液相色谱(HPLC)测定土壤中残留头孢菌素C(CPC)简单、快速方法。样品以超纯水为提取剂,超声辅助提取,SPE柱子以3 m L甲醇和3 m L水活化,采用5 m L的10%甲醇水溶液作为淋洗液,2 m L的5%甲酸水溶液/甲醇溶液(体积比50∶50)进行洗脱,高效液相色谱紫外检测器(HPLC-PDA)测定,检测波长λ=254 nm,柱温30℃,流动相为0.1%甲酸水溶液/甲醇溶液(体积比95∶5)对土壤中不同加标浓度的CPC进行检测,方法的回收率在77.9%~98.9%,标准偏差范围为5.0%~6.3%(n=5),方法检出限(LOD)为340.4μg/kg,定量限(LOQ)为1126.8μg/kg。同时采用此方法检测分析新疆某药厂附近阳性土壤样品,不同批次土壤样品结果分别为:检出(低于定量限)、1532.1μg/kg。
