ABSTRACT
The Qinling-Daba Mountains area is the main producing areas of Gynostemma longipes for medicinal usage, and samples of wild whole plants in Pingli, Shaanxi Province and Qingchuan, Sichuan Province were collected. The ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry(UHPLC-Q-TOF-MS~E) was used to profile the chemical compositions and analyze the similarities and differences of G. longipes samples in these areas. Based on the accurate molecular weight and fragment information obtained from Q-TOF-MS~E, the structures of the main components were identified by combining with the mass spectra, chromatographic behaviors of reference standards and related literatures. The results showed that the components of wild G. longipes from different places among Qinling-Daba Mountains area were similar. Forty-five chemical components were identified in the whole plant of G. longipes from Pingli, Shaanxi Province, including 43 triterpenoid saponins and 2 flavonoids which contain all main peaks in its fingerprint. The main components are dammarane-type triterpenoid saponins, such asgypenoside ⅩLⅨ, gypenoside A and its malonylated product of glycosyl.
Subject(s)
Chromatography, High Pressure Liquid , Drugs, Chinese Herbal , Gynostemma , Mass Spectrometry , SaponinsABSTRACT
In this study, the growth index including plant height, compound leaf area, specific leaf area, leaf water content, number of branches, and leaf biomass per plant and the icariin flavonoids such as epimedin A, epimedin B, epimedin C and icariin of Epimedium pseudowushanense were determined on 30 d and 60 d under light intensity(18.2±2.5) μmol·m~(-2)·s~(-1)(L1) and(90.9 ±2.5) μmol·m~(-2)·s~(-1)(L2), and white light as control, red light, blue light and yellow light were used as three light quality treatments, to study the effect of light quality on the growth and flavonoids accumulation of E. pseudowushanense. The E. pseudowushanense was sui-table for growth under L1 light intensity, the blue light treatment significantly reduced the leaf area, but had little effect on the stem height, the red light treatment and the yellow light treatment had no obvious effect on the stem height and leaf area, but the yellow light treatment significantly increased the germination of new branches, and had a sustained promoting effect, and the biomass was significantly higher than the white light treatment at 60 d. The content of icariin flavonoids in red light, blue light and yellow light treatment was higher than that in white light treatment at 30 d and 60 d under L1 light intensity, while yellow light treatment promoted the synthesis of icariin flavonoids to the largest extent, which was 1.8 and 1.9 times of white light treatment(30 d and 60 d).Under L2 light intensity, the effect of strong light on promoting stem germination became the main factor, while the yellow light treatment showed no significant effect on promoting stem germination, and the red light treatment exhibited a significant effect on reducing leaf area. Icariin flavonoids under red light, blue light and yellow light treatment were all lower than that under white light treatment, that is, the effect of white light treatment on the synthesis of icariin flavonoids is better than red light, blue light and yellow light treatment. When the time of strong light treatment was longer, the degradation range of icariin flavonoids in other light treatment appeared, while red light treatment promotes the synthesis of icariin flavonoids. Therefore, the influence of light quality on E. pseudowushanense is quite different under different light intensity, no matter from growth index or flavonoid content index. The results support that the biomass and icariin flavonoid content can be increased by providing appropriate red and yellow light.
Subject(s)
Drugs, Chinese Herbal , Epimedium , Flavonoids , Plant LeavesABSTRACT
Ziziphi Spinosae Semen is one of the Chinese herbal medicine being susceptible to aflatoxins contamination. To investigate the sources of aflatoxins contamination and toxigenic fungi species on Ziziphi Spinosae Semen,32 samples were collected from multiple steps during the post-harvest processing in this study. Aflatoxins in these samples were determined by immunoaffinity column and HPLC coupled with post-column photochemical derivatization. The dilution-plate method was applied to the fungi isolation. The isolated fungi strains were identified by morphological characterization and molecular approaches. The results showed that aflatoxins were detected in 28 samples from every step during the processing of Ziziphi Spinosae Semen. Three samples were detected with aflatoxin B_1 and 2 samples with both aflatoxin B_1 and total aflatoxin exceeding the limit of Chinese Pharmacopoeia. Especially the samples from the washing step,with the highest detected amounts of AFB_1 and AFs were reached 94. 79,121. 43 μg·kg~(-1),respectively. All 32 samples were contaminated by fungi. The fungal counts on the newly harvested samples were 2. 20 × 10~2 CFU·g~(-1). Moreover,it increased as tphreocessing progresses,and achieved 1. 16×10~6 CFU·g~(-1) after washing. A total of 321 isolates were identified to 17 genera. Aspergillus flavus was the main source of aflatoxins during the processing and storage of Ziziphi Spinosae Semen. One isolate of A. flavus was confirmed producing AFB_1 and AFB_2. The fungal count was significantly increased by composting,and Aspergillus was the predominant genus after shell breaking. The contamination level of aflatoxins was increased by composting and washing.
Subject(s)
Aflatoxins , Aspergillus , Chromatography, High Pressure Liquid , Fungi , Seeds , Chemistry , Microbiology , Ziziphus , ChemistryABSTRACT
The change of icariin( ICA) content in thirty-three samples of five Epimedium species listed in the Chinese Pharmacopoeia( 2015 edition),including E. brevicornu,E. sagittatum,E. pubescens,E. koreanum,and E. wushanense has been investigated in this study. The results indicated that the optimized process procedure was baking at 150 ℃ for 30 min,and 3'''-carbonyl-2″-β-L-quinovosyl icariin( CQICA) could not be translated into ICA and ICA could be converted under this heating process condition. ICA increased remarkably after the heating process by 1-3 times in E. brevicornu,E. wushanense and E. koreanum,and increased lightly in E. brevicornum and E. pubescens,while ICA slightly increased or decreased in E. sagittatum and E. wushanense.
Subject(s)
Drugs, Chinese Herbal , Chemistry , Epimedium , Chemistry , Flavonoids , Hot Temperature , Phytochemicals , Specimen HandlingABSTRACT
UPLC-Q-TOF-MS was used to analyze the chemical differences in Bupleurum. chinense,B. marginatum,B. marginatum var. stenophyllum and B. smithii var. parvifolium. Chromatographic separation was carried out on an Acquity HSS T3 C_(18) column( 2. 1 mm ×100 mm,1. 8 μm,Waters) with the mobile phase composed of 0. 1% formic acid in water-acetonitrile in the gradient elution. A hybrid quadrupole time-of-flight tandem mass spectrometry( Q-TOF-MS~E) was used for mass spectrometric analysis. Finally,25 peaks were identified based on their exact mass data and fragmentation characteristics. B.chinense,B.marginatum,B. marginatum var. stenophyllum and B. smithii var. parvifolium were obviously clustered into 3 types through processing by principal component analysis( PCA). There was almost no difference between B. chinense and B. marginatum. However,the compounds existed in B. chinense were different from those in B. marginatum var. stenophyllum,and B. smithii var. parvifolium.
Subject(s)
Bupleurum , Chemistry , Classification , Chromatography, High Pressure Liquid , Drugs, Chinese Herbal , Chemistry , Phytochemicals , Tandem Mass SpectrometryABSTRACT
As an important secondary metabolites of medicinal plant, flavonoids plays a very important role on itself including light protection and antioxidant. Light is one of the important environmental factors which impacts the secondary metabolites of plant and has a significant impact on biological synthesis of flavonoids. This paper reviews the recent progress of the effects of light on flavonoids on the plants focusing from light intensity and light quality, and summarizes briefly functions of the phenylalanine ammonia lyase (PAL) in plant secondary metabolism and the upstream key enzyme chalcone synthase (CHS) in flavonoid biosynthetic pathway.
ABSTRACT
Epimedium is a widely used medicinal plants. Due to excessive use of wild resources and resource constraints, artificial cultivation is the only way to achieve sustainable use of resources. E. pseudowushannense is intended to achieve the first cultivated species, but plant production technology is not yet fully mature.The diurnal variation of photosynthetic and eco-physiological characteristics of E. pseudowushannense in different growing age was studied by the CI-340 Portable Photosynthesis System under natural conditions. The net photosynthetic rate (Pn), stomatal conductance (C), intercellular CO2 concentration (Ci), photosynthetically active radiation (PAR), relative humidity (RH), air temperature (Ta), apparent mesophyll conductance (ALMC), transpiration rate (E), leaf temperature (Tl), water use efficiency (WUE) and other photosynthetic physiological factors and environmental factors were measured. The obtained data was analyzed by correlation analysis, path analysis and stepwise multiple-regression analysis to explore the relationship between net photosynthetic rate and physiological and ecological factors. The results show that: ①The daily variation of the Pn, E, ALMC, C of E. pseudowushannense in different growing age took on"two peak type", the Pn was with an obvious midday depression phenomenon at noon.②The Pn, ALMC and C of annuals' were significantly higher than biennial or three-year; but the Ci was basically a three-year > biennial> annual.③The correlation analysis, path analysis and stepwise regression analysis showed that ALMC, Ci, Ta might played important role in the Pn and ranked as ALMC>Ci>Ta.
ABSTRACT
This study, based on the findings for Perilla resources, aimed to describe the species, distribution, importance, features, utilization and status of quantitative Perilla resources in China. This not only helps people to know well about the existing resources and researching development, but also indicates the overall distribution, selection and rational use of Perilla resource in the future. According to the output types, Perilla resources are divided into two categories: wild resources and cultivated resources; and based on its common uses, the cultivated resources are further divided into medicine resources, seed-used resources and export resources. The distribution areas of wild resources include Henan, Sichuan, Anhui, Jiangxi, Guangxi, Hunan, Jiangsu and Zhejiang. The distribution areas of medicine resources are concentrated in Hebei, Anhui, Chongqing, Guangxi and Guangdong. Seed-used resources are mainly distributed in Gansu, Heilongjiang, Jilin, Chongqing and Yunnan. Export resource areas are mainly concentrated in coastal cities, such as Zhejiang, Jiangsu, Shandong and Zhejiang. For the further study, the essential oil of leaf samples from different areas were extracted by the steam distillation method and analyzed by GC-MS. The differences in essential oil chemotypes among different Perilla leaves were compared by analyzing their chemical constituents. The main 31 constituents of all samples included: perillaketone (0.93%-96.55%), perillaldehyde (0.10%-61.24%), perillene (52.15%), caryophyllene (3.22%-26.67%), and α-farnesene (2.10%-21.54%). These samples can be classified into following five chemotypes based on the synthesis pathways: PK-type, PA-type, PL-type, PP-type and EK-type. The chemotypes of wild resources included PK-type and PA-type, with PK-type as the majority. All of the five chemotypes are included in cultivated resources, with PA-type as the majority. Seed-used resources are all PK-type, and export resources are all PA-type. The P. frutescens var. frutescens include five chemotypes, with PK-type as the majority. The PK-type leaves of P. frutescens var. acuta are green, while the PA-type leaves are reddish purple. The P. fruteseens var. crispa was mainly PA type with reddish purple leaves. The differences of the main chemotypes provide a scientific basis for distinguishing between Zisu and Baisu in previous literatures. Based on the lung toxicity of PK and the traditional use of Perilla, the testing standard of essential oil and Perilla herb shall be built, and PA type is recommended to be used in traditional Chinese medicine.
ABSTRACT
Plant growth retardant as one of plant growth regulator can inhibit the cell division, elongation and growth rate in shoot apical meristem (SAM), which can be reversed by gibberellin regulate the product of photosynthesis transfer to the root and rhizome part. As commonly used plant growth retardant, paclobutrazol, uniconazole, chlorocholine chloride, mepiquat chloride, choline chloride and daminozide are used to promote the growth of root and rhizome, call as "zhuanggenling", "pengdasu", "pengdaji" etc. Single or recombination of plant growth regulator is registered as pesticide, and called as pesticide "zhuanggenling" in this paper. Growth regulator which registered as a foliar fertilizer or fertilization was called agricultural fertilizer "zhuanggenling" in this paper. The author investigate the usage of "zhuanggenling" in the root and rhizome of medicinal plants cultivation from 2012 to 2014 in Sichuan province, Huangyuan town, Mianyang (Ophiopogonis Radix); Pengzhou Aoping town (Chuanxiong Rhizoma); Pengshan Xiejia town (Alismatis Rhizoma); Jiangyou Taiping town and Zhangming town (Aconiti Lateralis Radix Praeparata); Yunnan Wenshan (Notoginseng Radix et Rhizoma); Henan province, Wuzhidafeng Town (Rehmanniae Radix, Achyranthis Bidentatae Radix, Dioscoreae Rhizoma); Gansu Min county (Codonopsis Radix, Angelicae Sinensis Radix); Gansu Li county (Rhei Radix et Rhizoma). The result showed that "zhuanggenling" were applied in the most medicinal plant cultivation except Rhei Radix et Rhizoma. It has been applied widespreadly in Ophiopogonis Radix, Alismatis Rhizoma, Achyranthis Bidentatae Radix, Codonopsis Radix; Rehmanniae Radix, commonly in Angelicae Sinensis Radix application, and occasionally in Chuanxiong Rhizoma, Aconiti Lateralis Radix Praeparata, Notoginseng Radix et Rhizoma and Dioscoreae Rhizoma. In 53 collected sample from plantation areas, fifteen (28%) were pesticide "zhuanggenling", thirty-eight (72%) were pesticide "zhuanggenling". UPLC analysis results showed that 38 farmers fertilizer "zhuanggenling" content of 6 kinds of plant growth retardant. It is regarded that fertilizer "zhuanggenling" was dominant in medicinal plant cultivation, and that the plant growth retardant is added widespreadly in farm fertilizer "zhuanggenling". All evidence proves conclusively that "zhuanggenling" have been used in the proper way, whereas some others have been misused or even abused in the use regarding to type, number, use frequency. The root or rhizoma are increased to 20%-200%. But there is lack of evaluation to appraise the quality of medicinal materials from the aspects of research or industry. "zhuanggenling" has become a important Chemical control material besides fertilizer, insecticidal sterilization of pesticide
Subject(s)
China , Fertilizers , Medicine, Chinese Traditional , Plant Growth Regulators , Pharmacology , Plants, MedicinalABSTRACT
<p><b>OBJECTIVE</b>To identify the original plant of "Daibaijie", commonly used Dai herb.</p><p><b>METHOD</b>The literature review, morphology and anatomy, pharmacognosy, molecular biology, chemistry were used to analysis.</p><p><b>RESULT</b>Daibaijie's historical scientific name, Dregea sinensis Hemsl., was mistakenly given "Daibaijie" and D. sinensis have significant differences from the distribution, morphology and anatomy, pharmacognosy, molecular biology and chemical composition. "Daibaijie" matches with the characteristics of Marsdenia tenacissima (Roxb.) Moon in Flora of China in English.</p><p><b>CONCLUSION</b>Daibaijie's original plant is M. tenacissima (Roxb.) Moon. The description and illustration of M. tenacissima (Roxb.) Moon in Flora of China in China are wrong. The illustration of M. tenacissima in Flora of China in English is wrong too.</p>
Subject(s)
China , Ethnology , Herbal Medicine , Marsdenia , Classification , Medicine, Chinese Traditional , Plant Components, Aerial , ClassificationABSTRACT
To investigate the resources of medicinal plant, such as wild Apocynum, supervised classification based on Principal Component Analysis (PCA) and texture feature were used to monitor wild medicinal plants from image captured by ZY-3 and World-view-2 and compare which satellite Image are more appropriate to monitor the wild medicinal plants. The research results shows that: for more complex growth conditions wild medicinal plants Apocynum, high-resolution images Worldview-2 is more suitable for its remote identification, the low-resolution satellite ZY-3 can only recognizes the wild medicinal plants which distributed intensively. If the study target distribution is more intensive and larger scale, and cultivated type medicinal plants, the use of satellite ZY-3 in low resolution remote sensing data to identify the target can be a good choice, it is not necessary to buy high-resolution data, in order to avoid waste of expenditure, for the scattered distribution, the high-resolution satellite imagery data may be indispensable to identify targets.
Subject(s)
Apocynum , Chemistry , China , Conservation of Natural Resources , Geographic Information Systems , Plant Dispersal , Plants, Medicinal , Chemistry , Remote Sensing Technology , MethodsABSTRACT
A Cleanert Alumina-N-SPE column (0.5 g/6 mL) chromatograpy with 5 mL of chloroform-methanol (7: 3) as eluent, instead of aluminum oxide column (100-200 mesh, 5 g, 1 cm) chromatograpy eluted successively with chloroform and the chloroform-methanol (7:3) (20 mL each), was applied to enrich matrine and oxymatrine in Sophora flavescens. Also, the optimization of the HPLC determination conditions with acetonitrile-ethanol absolute-3% phosphoric acid solution (84: 6: 10) as mobile phase, instead of acetonitrile-ethanol absolute -3% Phosphoric acid solution (80: 10: 10) recorded in Chinese Pharmacopoeia 2010 Edition, was more suitable for determination of matrine and oxymatrine in S. flavescens. This method has advantage of reducing sample handling time and solvent volume and increasing the accuracy and feasibility, which can simplify the procedure for determination of matrine and oxymatrine in S. flavescens.
Subject(s)
Alkaloids , Chromatography, High Pressure Liquid , Methods , Drugs, Chinese Herbal , Quinolizines , Solid Phase Extraction , Methods , Sophora , ChemistryABSTRACT
Plant growth retardants are widely used in cultivation of medicinal plant, but there is still lack of scientific guidance. In order to guide the use of plant growth retardants in medicinal plant cultivation efficiently and reasonably, this paper reviewed the mechanism, function characteristic, plant and soil residue of plant growth retardants, such as chlorocholine chloride, mepiquat chloride, paclobutrazol, unicnazle and succinic acid, and summarized the application of plant growth retardants in medicinal plants cultivation in recent years, with focus on the effect of growth and yield of the officinal organs and secondary metabolites.
Subject(s)
Agriculture , Agrochemicals , Pharmacology , Plant Development , Plants, MedicinalABSTRACT
<p><b>OBJECTIVE</b>To develop an HPLC method for determining oxyphyllenodiol A (1) and teuhetenone A (2) contained in Alpinia oxyphylla and to compare the contents of the two components contained in medicinal materials and prepared herbal medicines in pieces sold in the market and different fractions.</p><p><b>METHOD</b>HPLC and Waters sunfire C18 column (4. 6 mm x 250 mm, 5 microm) were adopted for gradient elute with the mobile phase of acetonitrile and water. The flow rate was 1.0 mL x min(-1) and the detection wavelength was 250 nm.</p><p><b>RESULT</b>1 and 2 showed a good linear relationship within the range of 0.1296 - 0.8640 microg and 0.1635 - 1.0900 microg respectively, with the average recoveries of 99.08% and 97.80%. Their content ranges were 0.0059% - 0.0149% and 0.0080% - 0.0164% in different samples. The mean value of 1 and 2 were 0.0085% and 0.0104% in the whole fruits, and 0.0137% and 0.0157% in the seeds. They were undetected in the nutshells.</p><p><b>CONCLUSION</b>The method is so precise, accurate and highly reproducible that it can be used to determine the contents of oxyphyllenodiol A and teuhetenone A in A. oxyphylla. The contents of the two components are mainly extracted from the seeds, with certain difference among different samples. There are a higher contents and no significant difference in the salted and raw seeds.</p>
Subject(s)
Alpinia , Chemistry , Chromatography, High Pressure Liquid , Methods , Drugs, Chinese Herbal , SesquiterpenesABSTRACT
<p><b>OBJECTIVE</b>To establish an effective method for the identification of Herba Epimedii.</p><p><b>METHOD</b>The HPLC fingerprints of 8 officinal species including 5 species recorded in 'Chinese Pharmacopoeia', which are Epimedium brevicornu, E. sagittatum, E. pubescens, E. koreanum and E. wushanense, and the other 3 species, E. acuminatum, E. myrianthum and E. leptorrhizum, recorded in 'Guizhou Quality Criteria for Traditional Chinese Medical Material and Nationality Medical Material', and of other 24 species in genus Epimedium in China as well had been analyzed and some fingerprinting features for the identification had been pointed out.</p><p><b>RESULT AND CONCLUSION</b>The fingerprinting features of E. koreanum are rather different from others and can be used for the species identification. There are some common fingerprinting features in the most samples of E. brevicornu, E. acuminatum and E. myrianthum, respectively, and these features are seldom found in the samples of other species. The HPLC fingerprints of E. pubescens and E. leptorrhizum appear steadily among all samples of the species respectively, but it is difficult to distinguish the spcecies from other species with the HPLC fingerprints only. The HPLC fingerprints of E. sagittatum and E. wushanense vary greatly within the species. It is also showed that the quality of Herba Epimedii varied significantly according to the HPLC features.</p>
Subject(s)
Chromatography, High Pressure Liquid , Drugs, Chinese Herbal , Chemistry , Epimedium , Chemistry , ClassificationABSTRACT
<p><b>OBJECTIVE</b>To investigate the total alkaloids content profile and diversity of medicinal materials of Tripterygium.</p><p><b>METHOD</b>The total alkaloids were extracted by organic solvent and purified by column chromatography (aluminium oxide), and determined by UV spectrometry.</p><p><b>RESULT AND CONCLUSION</b>The total alkaloids content in phloem was 2 to 5 times richer than that in xylem, and their changes had shown concordance. For the different species/types, the content from high to low in order was T. hypoglaucum, Tripterygium F, T. wilfordii and T. regellii, but in each type, the disparity among different populations content was very small. The populations with higher content were in Suichuan, Jiangxi Province, Huangshan, Anhui Province, Jingning, Zhejiang Province and Kunming, Yuannan Province; which came from T. hypoglaucum and Tripterygium F. The degree of difference of total alkaloids content among individuals in each population was different. The populations, which had a rich content diversity, were in Jingning, Zhejiang Province, Taining, Fujian Province and Kunming, Yunnan Province. They will be used for good germplasm selecting. The thickness of medicinal materials did not affect the total alkaloids content in the same plant. The total alkaloids content in xylem changed with seasons: the highest in March, then declining from June to December, the lowest in December, While this did not happen in phloem.</p>
Subject(s)
Alkaloids , Chemistry , China , Drugs, Chinese Herbal , Chemistry , Seasons , Tripterygium , ChemistryABSTRACT
<p><b>OBJECTIVE</b>To reveal the relationship between the storage time of the bark of Magnolia officinalis and the content of phenols in it, and lay a theoretical foundation for the harvest, processing, management and storage.</p><p><b>METHOD</b>The contents of magnolol and honokoiol in 15 bark samples, collected from the main producing areas in China, were determined in the time of freshly harvest and 3 and 10 years after respectively by HPLC method.</p><p><b>RESULT</b>It showed that within a certain period of time, bark storage was favorable to conversion and accumulation of phenols, that the content of magnolol tended to increase from year 0 to year 3, then followed by slight decrease with years on account of volatilization of phenols, but was still higher when the bark was stored for 10 years than that that when the bark was freshly harvested, and the content of honokoiol still tended to increase when the bark had been stored for 10 years.</p><p><b>CONCLUSION</b>The phenols in bark of M. officinalis is quite stable and the bark can be stored for 10 years or longer.</p>
Subject(s)
Biphenyl Compounds , Drug Storage , Methods , Drugs, Chinese Herbal , Chemistry , Lignans , Magnolia , Chemistry , Plant Bark , Chemistry , Time FactorsABSTRACT
<p><b>OBJECTIVE</b>To study the genetic relationship and diversity of 3 species which belong to Tripterygium.</p><p><b>METHOD</b>Samples were collected and divided into 4 types: typical T. wilfordii, typical T. hypoglaucum and their middle type according to morphological characters, and T. regelii. RAPD markers were used to measure the genetic relationship and diversity of 110 individuals from 22 natural populations in China.</p><p><b>RESULT AND CONCLUSION</b>10 primers were selected from 100 ones screened. A total of 128 bands were scored and 123 of them were polymorphic. Cluster analysis indicated that all the samples could be divided into 3 parts: 5 individuals from T. regelii gathered closely and were separated from other population and formed single branch. All 4 populations from T. hypoglaucum gathered directly. The middle type showed a nearer relationship with T. wilfordii than with T. hypoglaucum, although there was genetic differentiation between populations from middle type and those from T. wilfordii. The middle type has more diversity than T. wilfordii. The distance between different middle type populations and T. wilfordii was different. The existence of middle type populations between T. wilfordii and T. hypoglaucum suggested that the 2 species should be combined into one species. Considering all populations except T. regeli, the generic differentiation among populations was significant and the genetic diversity existed mainly among different populations. So samples of Tripterygii should be collected from different ppopulations for the reservation of the genetic diversity.</p>
Subject(s)
Biodiversity , China , Cluster Analysis , DNA, Plant , Genetics , Genetic Variation , Genetics, Population , Phylogeny , Plants, Medicinal , Classification , Genetics , Random Amplified Polymorphic DNA Technique , Tripterygium , Classification , GeneticsABSTRACT
<p><b>OBJECTIVE</b>To achieve the quality control of Herba Epimedii, and to evaluate the quality of medical materials of the 8 official species including the 5 species recorded in 'Chinese Pharmacopoeia' including Epimedium brevicornum, E. sagittatum, E. pubescens, E. koreanum and E. wushanense, and the 3 other species (E. acuminatum, E. myrianthum, E. leptorrhizum) recorded in 'Guizhou Quality Criteria for Traditional Chinese Medical Material and Nationality Medical Material', and E. pseudowushanuse (new species) which is used as E. wushanense for a long time.</p><p><b>METHOD</b>The contents of icariin and total flavonoids of 102 samples of 9 officinal species of Herba Epimedii were determined by HPLC and UV, respectively.</p><p><b>RESULT AND CONCLUSION</b>The contents of icariin in about 30% of the samples of the 5 species recorded in 'Chinese Pharmacopoeia' were lower than 0.5%, which is acceptable quality recorded in 'Chinese Pharmacopoeia'. Refering the literatures, we suggested the total contents of epimedin A, B, C and icariin (epi-medium multi-glycosides, ABCI) should be established as a new standard instead of the content of icariin. The content of total flavonoids, not less than 5.0%, and ABCI, not less than 1.3%, could be used to evaluate the quality of the above medical materials efficiently.</p>
Subject(s)
Drugs, Chinese Herbal , Reference Standards , Epimedium , Chemistry , Classification , Flavonoids , Flavonols , Pharmacognosy , Plants, Medicinal , Chemistry , Classification , Quality Control , Reproducibility of Results , Seasons , Species SpecificityABSTRACT
Researches on taxonomy, resources, cultivation, quality, chemicals and processing of Herba Epimedii in last ten years were reviewed. The taxonomy of Chinese species in "Flora of China (Vo1.29)" (published in 2001) and "The genus Epimedium and other herbaceous Berberidaceae" (published in 2002) were mainly introduced and commented. The quality evaluation of raw material of Herba Epimedii, and effects of distribution, growing time and medicinal part on the quality were summarized.