XIA Xueqing,HUANG Jianyou,HUANG Zhoufeng,et al.Extraction, isolation, identification and content determination of four chemical components in Yao medicine Ventilago leiocarpa[J].ZHONGGUO YAOFANG,2024,35(05):560-565.
XIA Xueqing,HUANG Jianyou,HUANG Zhoufeng,et al.Extraction, isolation, identification and content determination of four chemical components in Yao medicine Ventilago leiocarpa[J].ZHONGGUO YAOFANG,2024,35(05):560-565. DOI: 10.6039/j.issn.1001-0408.2024.05.09.
Extraction, isolation, identification and content determination of four chemical components in Yao medicine Ventilago leiocarpa
To extract and isolate the four chemical components of Yao medicine
Ventilago leiocarpa
, and to conduct identification and content determination for them.
METHODS
2
The chemical components of
V. leiocarpa
were separated and purified by solvent extraction, extraction, silica gel column chromatography and preparative liquid chromatography; then the chemical structures of four isolated compounds were identified based on their spectral data. The contents of four components were determined by high performance liquid chromatography(HPLC)-quantitative analysis of multi-components by single-marker (QAMS) method, with the following chromatographic conditions: chromatographic column was Echway Gowon
TM
C
18
(250 mm×4.6 mm, 5 μm). The mobile phase was acetonitrile-0.1% phosphoric acid for gradient elution; the detection wavelength was 269 nm, and the column temperature was 25 ℃. Using emodin as internal reference, the relative correction factors (
f
i
/
s
) between emodin and the other 3 components were established and used to calculate the content. At the same time, the content of each component was calculated with the external standard method (ESM), and the differences between these two methods were compared.
RESULTS
2
Four compounds were isolated from
V. leiocarpa
, and they were identified as emodin, frangulin A, pleuropyrone A, emodin-8-
O
-
β
-D-glucoside. The result of HPLC-QAMS showed that the
f
i
/
s
of pleuropyrone A, emodin-8-
O
-
β
-D-glucoside and frangulin A were 1.147 2, 0.874 7 and 0.644 4, respectively. The content of these four components was measured as a good linearity (
r
≥0.999 6); relative standard deviation (RSD) of precision, stability and reproducibility tests were all lower than 2.00%, and average recoveries were 99.41%-100.46%(RSD≤2.05%). There was no significant difference between QAMS method and ESM (RSD<3.00%).
CONCLUSIONS
2
Emodin, frangulin A, pleuropyrone A and emodin-8-
O
-
β
-D-glucoside are isolated from
V. leiocarpa
; among them, the last three components are all isolated from for the first time. The established HPLC-QAMS method is accurate and reliable for the determination of 4 components in
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Related Institution
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