نتایج جستجو برای: corydalis

تعداد نتایج: 342  

Journal: :Repertorium novarum specierum regni vegetabilis 1922

2014
Mingqian Sun Jianxun Liu Chengren Lin Lan Miao Li Lin

Since alkaloids are the major active constituents of Rhizoma corydalis (RC), a convenient and accurate analytical method is needed for their identification and characterization. Here we report a method to profile the alkaloids in RC based on liquid chromatography-tandem quadrupole time-of-flight mass spectrometry (LC-Q-TOF-MS/MS). A total of 16 alkaloids belonging to four different classes were...

Journal: :Molecules 2017
Huanyu Guan Kaitong Li Xiaoming Wang Xiaomei Luo Meifeng Su Wenting Tan Xiaoyan Chang Yue Shi

Dehydrocorydaline (DHC), a quaternary alkaloid from Corydalis yanhusuo, has been demonstrated to be the active constituent in the treatment of coronary heart disease. In this study, a high-performance liquid chromatography-electrospray ionization-triple quadrupole linear ion trap mass spectrometry (HPLC-ESI-QTRAP MS) technique was used to identify DHC metabolites in plasma and bile after oral a...

2005
Dibyendu Chowdhury S. Maurya M. B. Pandey V. B. Pandey B. K. Sarma U. P. Singh

Narceine methyl ester and narceine are potent alkaloids which were isolated from Corydalis longipes were found effective in vitro at very low concentration, i.e., 100~500 ppm against spore germination of some test plant pathogenic fungi (Alternaria solani, A. tagetica, Cercospora abelmoschi, Curvularia maculans, Erysiphe cichoracearum, E. pisi, Fusarium udum, Helminthosporium oryzae, H. pennise...

2011
H. Guo

Corydalis yanhusuo is used widely for the treatment of gastralgia, costalgia and dysmenorrhea in Chinese medicine. The alkaloid is the main active ingredient of C. yanhusuo. Response surface methodology was applied to optimize the separation and purification process for alkaloids by AB-8 resin-packed chromatogram column. The optimal conditions were found to be as follows: height-diameter ratio ...

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