HUANG Xiao-lan,HE Xu-feng,YANG Qin,et al.Simultaneous Determination of 7 Phenolic Acids in Lycopus lucidus var. hirtus Rhizome by HPLC-PDA[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(15):156-162.
HUANG Xiao-lan,HE Xu-feng,YANG Qin,et al.Simultaneous Determination of 7 Phenolic Acids in Lycopus lucidus var. hirtus Rhizome by HPLC-PDA[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(15):156-162. DOI: 10.13422/j.cnki.syfjx.20201615.
Simultaneous Determination of 7 Phenolic Acids in Lycopus lucidus var. hirtus Rhizome by HPLC-PDA
A high performance liquid chromatography-photo-diode array(HPLC-PDA) method for the simultaneous determination of the 7 phenolic acids including danshensu,protocatechuic acid,protocatechuic aldehyde,chlorogenic acid,caffeic acid,ferulic acid and rosemary acid in
Lycopus lucidus
var.
hirtus
rhizome,analyzing and evaluating the phenolic acids in
L.lucidus
var.
hirtus
rhizome collected from different habitats,is reported here.
Method
2
The sample was extracted by ultrasonic with 80% methanol solution,7 kinds of phenolic acids were separated on a CAPCELL PAK C
18
column (4.6 mm×250 mm,5 μm) with a mobile phase consisting of methanol-0.02% formic acid aqueous (pH 3.10)by gradient elution,The detection wavelength was at 279,324 nm, the column temperature was 30 ℃ with 20 μL injection volume and the flow rate was 1.0 mL·min
-1
.
Result
2
The 7 Phenolic acids had a good linear relationship (
r
≥0.999 9) within their respective mass concentration ranges,the average recovery was 96.49%-103.45% and the RSD was 0.5%-2.8%,the limit of determination was 0.008-0.046 mg·L
-1
and the limit of quantification was 0.027-0.154 mg·L
-1
.The 7 kinds of phenolic acids were all detected in
L.lucidus
var.
hirtus
rhizome and the total amount was between 5 811.01 and 11 747.23 µg·g
-1
, the average amount was 7 421.05 µg·g
-1
.The content of 7 phenolic acids was different and the rosemary acid was the highest in all the samples with an average of 7 111.19 µg·g
-1
the ratio to the total phenolic acids was 95.8%.The results of principal component analysis and cluster analysis showed that the quality of
L.lucidus
var.
hirtus
rhizome from Heze city in Shandong province was better,followed by Wanzhou district in Chongqing.
Conclusion
2
The method was simple,sensitive,accurate,practical and reliable,and is suitable for the content determination of phenolic acid in
L. lucidus
var.
hirtus
rhizome.It is expected to provide a reference for the improvement of quality standard and a new idea for the development and utilization of
LU Y H , HUANG J H , LI Y C , et al . Variation in nutritional compositions,antioxidant activity and microstructure of Lycopus lucidus Turcz.root at different harvest times [J]. Food Chem , 2015 , 183 : 91 - 100 .
黄菊华 . 地参多酚的组成及其抗氧化活性研究 [D]. 大理 : 大理学院 , 2015 .
SLUSARCZYK S , HAJNOS M , SKALICKA-Wozniak K , et al . Antioxidant activity of polyphenols from Lycopus lucidus Turcz [J]. Food Chem , 2008 , 113 ( 1 ): 134 - 138 .
LU Y H , TIAN C R , GAO C Y , et al . Protective effect of free phenolics from Lycopus lucidus Turcz.root on carbon tetrachloride-induced liver injury in vivo and in vitro [J]. Food Nutr Res. , 2018 , 62 : 1 - 10 .
REN Q , DING L , SUN S S , et al . Chemical identification and quality evaluation of Lycopus lucidus Turcz by UHPLC-Q-TOF-MS and HPLC-MS/MS and hierarchical clustering analysis [J]. Biomed Chromatogr Bmc , 2017 , 31 ( 5 ): 3867 - 3869 .
LU Y H , TIAN C R , GAO C Y , et al . Nutritional profiles,phenolics,and DNA damage protective effect of Lycopus lucidus Turcz.root at different harvest times [J]. Int J Food Prop , 2018 , 20 ( S3 ): S3062 - S3077 .