Analysis of spectrum-activity relationship among antioxidant parts of Lycii Fructus using three different chemometrics methods.
10.19540/j.cnki.cjcmm.20210308.201
- Author:
Zhen-Yu WANG
1
;
Si-Yue YANG
2
;
Wei LYU
3
;
Jian-Bao DING
4
;
Jian-Long MA
5
;
Jin YANG
1
Author Information
1. School of Chemistry and Chemical Engineering,North Minzu University Yinchuan 750021,China Key Laboratory of Chemical Engineering and Technology,State Ethnic Affairs Commission Yinchuan 750021,China.
2. Department of Statistical Sciences,University of Toronto Toronto M5T 1P5,Canada.
3. School of Chemistry and Chemical Engineering,North Minzu University Yinchuan 750021,China.
4. Ningxia Wuxing Science and Technology Co.,Ltd. Yinchuan 750002,China.
5. Ningxia Research Center for Natural Medicine Engineering and Technology Yinchuan 750021,China.
- Publication Type:Journal Article
- Keywords:
Lycii Fructus;
Pearson correlation;
antioxidant;
elastic net regression;
orthogonal partial least squares;
spectrum-activity relationship
- MeSH:
Antioxidants;
Chromatography, High Pressure Liquid;
Drugs, Chinese Herbal;
Fruit;
Phenols;
Reproducibility of Results
- From:
China Journal of Chinese Materia Medica
2021;46(13):3377-3387
- CountryChina
- Language:Chinese
-
Abstract:
The chemical components of Lycii Fructus were analyzed by liquid chromatography( LC) and mass spectrometry( MS for the establishment of spectrum-activity relationship,on the basis of which its antioxidant active ingredients were determined. In this experiment,Lycii Fructus was extracted with different solvents and then separated into 80 samples by macroporous adsorption resin and reversed-phase chromatography,respectively. The antioxidant components were enriched into 11 samples and their scavenging abilities against DPPH free radical and ferric ion reducing antioxidant power( FRAP) were significantly stronger than those before the treatment( P<0. 05). The spectrum-activity relationship regarding the antioxidant activity in vitro of Lycii Fructus was established by Pearson correlation analysis,orthogonal partial least squares( OPLS) and elastic net regression. Six chromatographic peaks greatly contributing to the antioxidant activity in vitro of Lycii Fructus were identified as rutin( P6),quercetin( P35),scopoletin( P14),N-cis-feruloyl-4-O-β-D-glucopyranosyl-tyramine or N-( 4-O-β-D-glucopyranosyl-trans-feruloyl)-tyramine( P8), ferulic acid( P13) and1,3,5-dihydroxy-2-isoprenyl-3-xanthone( P23). The active components associated with free radical scavenging were rutin and quercetin both belonging to flavonoids. The reduction of Fe3+was based on phenylpropanoids such as ferulic acid,scopoletin,xanthone and phenolic amides. These results indicated that the antioxidant activity of Lycii Fructus was ascribed to the synergistic action of different products through different ways. Besides,the data analysis model should be chosen carefully for the establishment of spectrum-activity relationship,thus ensuring the reliability of results.
