Biflavones from Chamaecyparis obtusa

2005 ◽  
Vol 60 (9-10) ◽  
pp. 679-685 ◽  
Author(s):  
Mirosława Krauze-Baranowska ◽  
Loretta Pobłocka ◽  
Atef Ahmed El Helab
Keyword(s):  
Chamaecyparis Obtusa ◽  
Hplc Method ◽  
Chemotaxonomic Markers

Abstract From the leaves of Chamaecyparis obtusa several biflavones were isolated and identified, namely: sciadopitysin, ginkgetin, isoginkgetin, podocarpusflavone B, 7,7″-O-dimethylamentoflavone, bilobetin, podocarpusflavone A, and 7-O-methylamentoflavone. The presence of amentoflavone and hinokiflavone was also confirmed. The composition of biflavones in other Chamaecyparis species D Ch. lawsoniana, Ch. thyoides D and cultivar varieties D Ch. pisifera “Squarrosa”, Ch. pisifera “Boulevard” D was compared using the HPLC method. It was stated, that podocarpusflavone A and 7-O-methylamentoflavone in addition to amentoflavone and hinokiflavone may be classified as chemotaxonomic markers of the genus Chamaecyparis

High-Pressure Liquid Chromatography Method for Quality Evaluation of Maca (Lepidium meyenii), A Functional Food

2018 ◽  
Vol 17 (3) ◽  
pp. 306-311
Author(s):  
Peng Qiao-Ling ◽  
Hao Li-Min ◽  
Zhang Li-Ming ◽  
Cao Jie ◽  
Yang Yong-Wu
Keyword(s):  
High Pressure ◽  
Functional Food ◽  
Quality Evaluation ◽  
Reliable Method ◽  
Hplc Method ◽  
Chromatography Method ◽  
Lepidium Meyenii ◽  
Chemotaxonomic Markers ◽  
Liquid Chromatography Method

Health benefits associated with consumption of Maca (Lepidium meyenii) has been associated with relative preponderance of different aromatic glucosinolate levels. This has, therefore, led to a need for reliable method for analysis of different maca preparations. To this end, an HPLC method with high precision, reproducibility and test stability has been developed that is capable of distinguishing quality of different maca sample based on abundance of different glucosinolates. The method uses the analyses of similarity and hierarchical clustering to evaluate similarity among different maca samples. The results indicated that the combination of three aromatic glucosinolates (glucosinalbin, glucotropaeolin, and glucolimnanthin) could be used as chemotaxonomic markers for accurate recognition and quality evaluation of different maca samples.

A new HPLC method for the analysis of Crocus sativus styles

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
NS Koulakiotis ◽  
E Gikas ◽  
DG Chryssanthi ◽  
FN Lamari ◽  
P Cordopatis ◽  
...  
Keyword(s):  
Hplc Method ◽  
Crocus Sativus

A simple HPLC method for detecting adulteration of ginkgo extracts with flavonol aglycones

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
H Wohlmuth ◽  
K Savage ◽  
A Dowell ◽  
P Mouatt
Keyword(s):  
Hplc Method

Development of an HPLC method for quality control of Alpinia zerumbet

Planta Medica ◽  
2013 ◽  
Vol 79 (13) ◽  
Author(s):  
I Cardoso ◽  
M Tappin ◽  
M Nakamura ◽  
H Pereira ◽  
M Behrens
Keyword(s):  
Quality Control ◽  
Hplc Method ◽  
Alpinia Zerumbet

New HPLC - method to determine Frangulin A and B as well as Glucofrangulin A and B in Frangulae cortex

Planta Medica ◽  
2013 ◽  
Vol 79 (13) ◽  
Author(s):  
I Rosenthal ◽  
E Wolfram ◽  
B Meier
Keyword(s):  
Hplc Method

RP-HPLC method development for simultaneous determination of the drugs Ramipril and Amlodipine

2012 ◽  
Vol 2 (2) ◽  
pp. 364-367 ◽  
Author(s):  
Saida Naik Dheeravath ◽  
◽  
Kasani Ramadevi ◽  
Zilla Saraswathi ◽  
Dheeravath Maniklal ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Method Development ◽  
Hplc Method ◽  
Rp Hplc ◽  
Hplc Method Development
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