A novel Eucommia antifungal peptide, named EAFP3, was isolated from the bark of Eucommia ul- moides by NaC1 extract, gel filtration and reverse phase high performance liquid chromatography. The molecular mass of EAFP3...A novel Eucommia antifungal peptide, named EAFP3, was isolated from the bark of Eucommia ul- moides by NaC1 extract, gel filtration and reverse phase high performance liquid chromatography. The molecular mass of EAFP3 is 4157.3 Da, and its partial amino acid sequence is -. LYQQLIAGITLNK.-. EAFP3 exerts an inhibitory activity against Candida albicans in vitro and the drug concentration required for 50% growth inhibition (IC50) is 31.25μg/mL.展开更多
目的:为了评价杜仲再生皮质量,测定了杜仲三次再生皮中降压有效成分松脂醇二葡萄糖苷(P inores-inol d iglucoside,PDG)含量。方法:采用HPLC法,色谱柱为国产YWG C18柱(46×250 mm,10μm),以甲醇-水(30∶75)为流动相,流速1.0 m l/m ...目的:为了评价杜仲再生皮质量,测定了杜仲三次再生皮中降压有效成分松脂醇二葡萄糖苷(P inores-inol d iglucoside,PDG)含量。方法:采用HPLC法,色谱柱为国产YWG C18柱(46×250 mm,10μm),以甲醇-水(30∶75)为流动相,流速1.0 m l/m in,柱温为室温,检测波长为277 nm,进样量为10μl。结果:第一次剥皮后的再生皮中PDG含量略高于原生皮;第二次剥皮后的再生皮中PDG含量与剥皮前的一次再生皮相当;第三次剥皮后的再生皮中PDG含量明显低于剥皮前的二次再生皮。结论:为了保证药材质量,杜仲剥皮再生可进行两次,每次间隔时间不少于5年,第三次剥皮后的再生皮中PDG含量有待提高。展开更多
基金the National Natural Science Foundation of China(30660146)the Ministry of Sciences of Technology Program of China(2003CCA02600)
文摘A novel Eucommia antifungal peptide, named EAFP3, was isolated from the bark of Eucommia ul- moides by NaC1 extract, gel filtration and reverse phase high performance liquid chromatography. The molecular mass of EAFP3 is 4157.3 Da, and its partial amino acid sequence is -. LYQQLIAGITLNK.-. EAFP3 exerts an inhibitory activity against Candida albicans in vitro and the drug concentration required for 50% growth inhibition (IC50) is 31.25μg/mL.
文摘目的:为了评价杜仲再生皮质量,测定了杜仲三次再生皮中降压有效成分松脂醇二葡萄糖苷(P inores-inol d iglucoside,PDG)含量。方法:采用HPLC法,色谱柱为国产YWG C18柱(46×250 mm,10μm),以甲醇-水(30∶75)为流动相,流速1.0 m l/m in,柱温为室温,检测波长为277 nm,进样量为10μl。结果:第一次剥皮后的再生皮中PDG含量略高于原生皮;第二次剥皮后的再生皮中PDG含量与剥皮前的一次再生皮相当;第三次剥皮后的再生皮中PDG含量明显低于剥皮前的二次再生皮。结论:为了保证药材质量,杜仲剥皮再生可进行两次,每次间隔时间不少于5年,第三次剥皮后的再生皮中PDG含量有待提高。