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OBJECTIVE To analyze the chemical constituents and components absorbed into plasma of the extract of Ardisia crenata and to elucidate its possible pharmacodynamic material basis. METHODS Overall， 12 rats were randomly assigned to the blank group （n＝6） and A. crenata group （n＝6） by the paired comparison method. The drug was administered once daily in the morning and afternoon for three days. Serum samples were prepared from serum after redosing on 4th day. The UPLC-QE-HF-MS/ MS was used to analyze and identify the chemical constituents in A. crenata extract and serum samples. Compound Discoverer 3.0 was employed for retention time correction， peak identification， and peak extraction. According to the secondary mass spectrometry information， the Thermo mzCloud online and Thermo mzVault local databases， referring to the relevant literature and control quality spectrum information were used to preliminarily identify the chemical constituents and components absorbed into plasma of A. crenata. RESULTS A total of 34 compounds were identified from the extract of A. crenata， mainly coumarins， flavonoids， organic acids， amino acids， including bergenin， quercetin， gallic acid， L-pyroglutamic acid， etc. Besides， 5 components absorbed into plasma were identified from serum samples: L-pyroglutamic acid， syringic acid， bergenin， cinnabar root saponin A， and mycophenolic acid. CONCLUSIONS L-pyroglutamic acid， syringic acid， bergenin， cinnabar root saponin A， and mycophenolic acid may act as the pharmacodynamic material basis of A. crenata.
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Rubi fructus mainly contains contents of flavonoids,coumarins,phenolic acids,polysaccharides,alkaloids and trace elements.Meanwhile,it has activity effects of anti-tumor,anti-oxidation,anti-aging and anti-inflammation,and is widely used in medicine,food,health food and other fields.Research progress on chemical constituents,pharmacological action and clinical application of Rubi fructus were summarized in this paper,in order to provide the theoretical guidance for the rational use of Rubi fructus and the sustainable development of the resources.
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Objective To quickly analyze and identify the chemical constituents in Zhuangxi-6 powders by HPLC-Q-Exactive-MS.Methods The separation was performed on Shim-pack GIST C18 column(150 mm×4.6 mm,5 μm)with the mobile phase of methanol-0.1%formic acid aqueous solution(gradient elution).The flow rate was 0.35 mL/min,column temperature was 35℃,and the volume of sample injection was 10 μL.Electrospray ionization was applied for scanning under positive and negative ion modes with the scanning range of m/z 110-1 200.Results Combining mass spectrometry data and literature information,a total of 65 components were identified in Zhuangxi-6 powders,including 16 alkaloids,11 flavonoids,14 organic acids,6 chromones,7 sesquiterpenoids,4 fatty acids,3 amino acids,2 tannins,1 phenolic acids,and 1 phenylpropanoid.Conclusion HPLC-Q-Exactive-MS method can quickly identify the chemical components of Zhuangxi-6 powders,laying a foundation for the further research on the pharmacodynamics substances of Zhuangxi-6 powders.
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AIM To establish an HPLC method for the simultaneous content determination of gallic acid,protocatechuic acid,morroniside,loganin,sweroside,paeoniflorin,hypericin,astragalin,salvianolic acid B,salvianolic acid A,epimedin C and icariin in Bushen Huoxue Sanjie Capsules.METHODS The analysis was performed on a 30℃thermostatic Agilent 5 TC-C18 column(250 mm×4.6 mm,5 μm),with the mobile phase comprising of acetonitrile-0.1%phosphoric acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelength was set at 240 nm.RESULTS Twelve constituents showed good linear relationships within their own ranges(r≥0.999 8),whose average recoveries were 97.11%-101.14%with the RSDs of 0.60%-2.65%.CONCLUSION This simple,accurate and reproducible method can be used for the quality control of Bushen Huoxue Sanjie Capsules.
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AIM To establish an HPLC method for the simultaneous content determination of urine,guanosine,adenosine,(R,S)-hysterone,chlorogenic acid,forsythian glycoside A,luteolin,3,5-dicaffeioyl quinic acid,4,5-dicaffeioyl quinic acid and phillyrin in Xiao'er Ganmao Granules.METHODS The analysis was performed on a 40℃thermostatic Welchrom C18 column(4.6 mm×250 mm,5 μm),with the mobile phase comprising of acetonitrile-0.2%glacial acetic acid flowing at 0.8,1.0 mL/min in a gradient elution manner,and the detection wavelengths were set at 230,254,327 nm.RESULTS Ten constituents showed good linear relationships within their own ranges(r≥0.999 0),whose average recoveries were 93.68%-98.08%with the RSDs of 0.90%-1.86%.CONCLUSION This stable and reliable method can be used for the quality control of Xiao'er Ganmao Granules.
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AIM To analyze the component composition of Xeriga-4 Powder,and to determine the contents of phellodendrine,chlorogenic acid,gardenoside,berberine,rutin and curcumin.METHODS The high performance liquid chromatography-Q-exactive orbitrap mass spectrometry(HPLC-Q-Exactive-MS)qualitative analysis was performed on a 35℃thermostatic Agilent ZORBAX SB-Aq column(4.6 mm×150 mm,5 μm),with the mobile phase comprising of methanol-0.1%formic acid flowing at 0.35 mL/min in a gradient elution manner,and electron spray ionization source was adopted in positive and negative ion scanning.High performance liquid chromatography tandem mass spectrometry(HPLC-MS/MS)quantitative analysis was performed on a 35℃thermostatic Shim-pack GIST-HP C18 column(2.1 mm×100 mm,3 μm),with the mobile phase comprising of methanol-0.1%formic acid flowing at 0.25 mL/min in a gradient elution manner,and electron spray ionization source was adopted in positive and negative ion scanning with multiple reaction monitoring mode.RESULTS Total 65 constituents were identified,containing 19 alkaloids,13 organic acids,13 flavonoids,7 curcumins,6 iridoids,4 fatty acids,2 aldehydes,and 1 amino acid.Six constituents showed good linear relationships within their own ranges(r≥0.999 1),whose average recoveries were 96.44%-102.37%with the RSDs of 2.05%-3.74%.CONCLUSION This study can provide a reference for the quality control for Xieriga-4 Powder.
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AIM To establish an UPLC-MS/MS method for simultaneous content determination of protocatechuic acid,epicatechin,chlorogenic acid,quercitrin,gaultherin and gaultheroside A in Gaultheria leucocarpa var.yunnanensis.METHODS The analysis was performed on a 40℃thermostatic Waters BEH C18 column(100 mm×2.1 mm,1.7 μm),with the mobile phase comprising of water(containing 0.1%formic acid)-acetonitrile(containing 0.1%formic acid)flowing at 0.3 mL/min in a gradient elution manner,and electron spray inoization source was adopted in positive and negative ion scanning with multiple reaction monitoring(MRM)mode.Hierarchical cluster analysis(HCA)and principal component analysis(PCA)was used to screen important components that affect the quality of medicinal materials.RESULTS Six constituents showed good linear relationships within their own ranges(R2≥0.998 2),whose average recoveries were 98.76%-101.88%with the RSDs of 1.0%-2.5%.The constituents of G.leucocarpa in the roots and aerial parts were quite different.Gaultherin,epicatechin and protocatechuic acid may be the quality mark constituents of G.leucocarpa.CONCLUSION This accurate and efficient method can be used for the quality control of G.leucocarpa.
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AIM To study the chemical constituents from Ganoderma angustisporum J.H.Xing,B.K.Cui&Y.C.Dai and their α-glucosidase inhibitory activities.METHODS The ethyl acetate extract from G.angustisporum was isolated and purified by silica gel,ODS,TLC and HPLC,then the structures of obtained compounds were identified by physicochemical properties and spectral data.pNPG method was used to evaluate their α-glucosidase inhibitory activities.RESULTS Seven compounds were isolated and identified as N-acetyl-L-phenylalanine ethyl ester(1),N-acetyl-L-phenylalanine methyl ester(2),4-hydroxy-17R-methylincisterol(3),6,8-di-O-methylaverufin(4),aversin(5),methyl 2-(4-hydroxyphenyl)aceate(6),5-toluene-1,3-diol(7).Compounds 1-2,4-7 showed inhibitory activities of α-glucosidase with IC50 values being(33.80±0.47),(45.45±7.95),(48.80±5.86),(39.48±2.82),(41.47±6.68),(55.38±10.12)μmol/L,and compound 1 showed good inhibitory activity.CONCLUSION Compound 1 is a new natural product.Compounds 2-7 are isolated from genus Ganoderma for the first time.Compounds 1-2,4-7 have α-glucosidase inhibitory activities.
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AIM To establish a UPLC-MS/MS method for the simultaneous content determination of liquiritin apioside,alibiflorin,swertiamarin,methyl gallate,benzoylpaeoniflorin,sweroside,6′-O-β-D-glucosylgentiopicroside,isoliquiritigenin,loganic acid,liquiritigenin,gallic acid,paeoniflorin,oxypaeoniflorin,gentiopicroside,glycyrrhizic acid,isoliquiritoside and liquiritin in Yangxue Ruanjian Capsules.METHODS The analysis was performed on a 40℃thermostatic Waters BEH C18column(2.1 mm×100 mm,1.7 μm),with the mobile phase comprising of 2 mmol/L ammonium acetate(containing 0.1%formic acid)-acetonitrile flowing at 0.3 mL/min in a gradient elution manner,and electron spray ionization source was adopted in negative ion scanning with multiple reaction monitoring mode.RESULTS Seventeen constituents showed good linear relationships within their own ranges(r>0.999 6),whose average recoveries were 91.33%-104.03%with the RSDs of 1.58%-3.50%.CONCLUSION This rapid,accurate and stable method can be used for the quality control of Yangxue Ruanjian Capsules.
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AIM To establish a quantitative analysis of multi-components by single-marker(QAMS)method for the simultaneous content determination of gastrodin,parishin E,syringin,parishin B,parishin C,ferulic acid,parishin A,buddleoside,harpagoside and cinnamic acid in Tianma Toufengling Capsules.METHODS The analysis was performed on a 30℃thermostatic GL Science InertsilTM ODS-3 column(150 mm×4.6 mm,5 μm),with the mobile phase comprising of acetonitrile-0.1%phosphoric acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelengths were set at 220,280 nm.Syringin was used as an internal standard to calculate the relative correction factors of the other nine constituents,after which the content determination was made.RESULTS Ten constituents showed good linear relationships within their own ranges(r≥0.999 7),whose average recoveries were 98.53%-102.22%with the RSDs of 1.26%-2.68%.The result obtained by QAMS approximated those obtained by external standard method.CONCLUSION This accurate and specific method can be used for the quality control of Tianma Toufengling Capsules.
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AIM To simultaneously determine the contents of neochlorogenic acid,caffeic acid,chlorogenic acid,cryptochlorogenic acid,hydroxysafflor yellow A,ferulic acid,senkyunolide I,senkyunolide H and senkyunolide A in Fuyang Granules,and to make chemical pattern recognition.METHODS The UHPLC was performed on a 35℃thermostatic Waters Acquity UPLC?BEH C18 column(150 mm×2.1 mm,1.7 μm),with the mobile phase comprising of acetonitrile-0.01%phosphoric acid flowing at 0.4 mL/min in a gradient elution manner,and the detection wavelengths were set at 278,322,325,390 nm.Then heatmap clustering analysis and principal component analysis were adopted.RESULTS Nine constituents showed good linear relationships within their own ranges(r>0.999 0),whose average recoveries were 93.89%-102.25%with the RSDs of 0.85%-2.88%.Different batches of samples from the same enterprises demonstrated consistent overall qualities,while the overall qualities of samples from different enterprises exhibited obvious differences.CONCLUSION This simple and accurate method can be used for the quality control of Fuyang Granules.
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AIM To identify the endophytic fungus G-(JK)-2 from Orixa japonica Thunb.and to study its secondary metabolites and their α-glucosidase inhibitory activities.METHODS Through the ITS sequence,the evolutionary tree that identifies the endophytic fungus G-(JK)-2 was established.Then 45 days rice solid medium of endophytic fungus G-(JK)-2 was extracted by methanol,and then by ethyl acetate.The ethyl acetate extract was separated and purified by silica gel chromatography,Sephadex LH-20,and semi-preparative HPLC.The structures of obtained compounds were identified by physicochemical properties and spectral data.Their α-glucosidase inhibitory activities were evaluated by PNPG method.RESULTS The endophytic fungus G-(JK)-2 from O.japonica was identified as Fusarium nematophilum.Thirteen compounds were isolated and identified as p-hydroxybenzaldehyde(G1),4-hydroxyacetophenone(G2),anhydromevalonolactone(G3),flazine(G4),salicylic acid(G5),p-hydroxybenzoic acid(G6),di-(2-ethylhexyl)-phthalate(G7),terephthalic acid bis(2-ethyl-hexyl)ester(G8),thymine(G9),uridine(G10),adenosine(G11),2′-deoxyuridine(G12),nicotinic acid(G13).The inhibitory effect of each compound on α-glucosidase was in sequence of G4>G11>G10>G13>G12.CONCLUSION All compounds are first isolated from the endophytic fungi of the O.japonica,and G10,G11,G13 are first isolated from the endophytic fungi of Fusarium.G4 and G11 have mild inhibition to α-glucosidase.
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AIM To study the chemical constituents from the leaves of Cyanocarya paliurus(Batalin)Iljinskaja and their α-glucosidase inhibitory activities.METHODS The 95%ethanol extract from the leaves of C.paliurus was isolated and purified by macroporous resin,silica gel,Sephadex LH-20,polyamide,C18 reversed-phase silica gel and semi-preparative HPLC,then the structures of obtained compounds were identified by physicochemical properties and spectral data.Their α-glucosidase inhibitory activities were evaluated by PNPG.RESULTS Fifteen compounds were isolated and identified as cyclopaloside C(1),cyclopaloside A(2),juglanosides E(3),vaccinin A(4),ent-murin A(5),kaempferol 3-O-α-L-rhamnopyranoside(6),kaempferol-3-O-β-D-glucopyranoside(7),kaempferol-3-O-β-D-glucuronide methyl ester(8),kaempferol-3-O-β-D-glucuronide ethyl ester(9),kaempferol-3-O-β-D-glucuronide butyl ester(10),quercetin-3-O-α-L-rhamnopyranoside(11)quercetin-3-O-β-D-glucopyranoside(12),quercetin-3-O-β-D-galactopyranoside(13),quercetin-3-O-β-D-glucuronide butyl ester(14),dihydrokaempferol(15).The IC50 value of total extracts ihibited α-glucosidase was(1.83±0.04)μg/mL,and the IC50 values of compounds 1,4-5 were(29.48±1.86),(0.50±0.07),(0.71±0.07)μmol/L,respectively.CONCLUSION Compound 1 is a new tetrahydronaphthalene glycoside.Compounds 4-5,8-10 and 14 are isolated from the leaves of C.paliurus for the first time.Compounds 4-5 are relatively rare flavonoid lignans with potential inhibitory activities against α-glucosidase.
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AIM To study the chemical constituents from the twigs of Aglaia perviridis Hiern and their total antioxidant and neuroprotective activities.METHODS The 95%ethanol extract from the twigs of A.perviridis were isolated and purified by silica gel,ODS and semi-preparative HPLC,then the structures of obtained compounds were identified by physicochemical properties and spectral data.The antioxidant and neuroprotective activities were evaluated by T-AOC kit and MTT assay,respectively.RESULTS Twenty-one compounds were isolated and identified as 3-epicotillol(1),syringic acid(2),palmitic acid(3),di-N-pentyl phthalate(4),ethyl-4-hydroxyphenylacetate(5),7-hydroxy-6-methoxycoumarin(6),1-octanol(7),p-hydroxyphenylacetic acid(8),(+)-syringaresinol-4-O-β-D-glucopyranoside(9),(+)-episyring-4-O-β-D-glucopyranoside(10),methy-4-hydroxyphenylacetate(11),koaburaside(12),byzantionoside B(13),quercetin 3-O-α-L-rhamnopyranoside(14),(2R,3R)-(+)-glucodistylin(15),(2S,3S)-(-)-glucodistylin(16),(+)-lyoniresinol-3α-O-β-D-glucopyranoside(17),(+)-isolariciresinol-9'-O-β-D-glucopyranosidede(18),(-)-lyoniresinol-3α-O-β-D-glucopyranoside(19),phlorizin(20),β-sitosterol(21).The total antioxidant capacity of compounds2,9-10,14-20 was 10.300-38.367 U/(mmol·L-1).The neuroprotective effects of compounds 2,10 and 17 were concentration-dependent,and the optimal concentrations of compounds 9 and 15 were 50,100 μmol/L,respectively.CONCLUSION Compounds 1-20 are isolated from this plant for the first time.Compounds 2,9-10,14-20 have strong total antioxidant activities.Compounds 2,9-10,15,17 have neuroprotective activities.
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Cibotii Rhizoma has a long history of folk usage and clinical applications,which is commonly used to treat symptoms such as waist and knee soreness,numbness of hands and feet.Its chemical components mainly include sugars and glycosides,aromatics,volatile oils,pterosins,flavonoids,steroids,pyranones,amino acids and inorganic elements.Pharmacological studies have shown that Cibotii Rhizoma has antioxidant,anti-inflammatory,anti-osteoporosis,gastrointestinal protection,antibacterial,liver protection,anticancer,analgesic and other effects.This paper systematically reviews the research status of chemical constituents,pharmacological effects and quality control of Cibotii Rhizoma,which provides reference for the development and rational use of Cibotii Rhizoma.
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@#In order to investigate the chemical constituents of glycosides in Piper sintenense Hatusima, column chromatographic techniques such as silica gel, ODS, MCI GEL CHP20P, Sephadex LH-20, and semi-preparative high performance liquid chromatography were used to afford nine glycosides from the n-butanol part of the 95% ethanol extract of Piper sintenense Hatusima. Based on the physicochemical properties and NMR data, the above compounds were identified as (2S)-2-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone-2-O-β-D-glucopyranoside (1), 2-phenylethyl β-D-glucopyranoside (2), benzyl α-L-arabinopyranosyl-(1''→6')-β-D-glucopyranoside (3), benzyl β-D-xylopyanosyl-(1''→6')-β-D-glucopyranoside (4), phenethyl β-D-apiofuranosyl-(1''→ 2')-β-D-glucopyranoside(5), salidroside (6), phenethanol β-D-xylopyanosyl-(1''→6')-β-D-glucopyranoside (7), (Z)-hexenyl-O-α-L-arabinopyranosyl-(1''→6')-O-β-D-glucopyranoside (8), (Z)-hexenyl-O-β-D-xylopyanosyl-(1''→6')-O-β-D-glucopyranoside (9). Compound 1 was identified as a new compound, and compounds 3-9 were isolated from the genus Piper for the first time.
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OBJECTIVE To establish the characteristic chromatogram of the volatile oil in the standard decoction of Qingshang juantong decoction， and preliminarily infer the main active components of volatile oil that affect the clinical therapeutic effect. METHODS The volatile oil in the standard decoction of Qingshang juantong decoction was extracted by steam distillation. The ultra-high performance liquid chromatography （UPLC） characteristic chromatograms of 15 batches of samples were established by the Similarity Evaluation System of TCM Chromatographic Fingerprint （2012 edition）， and the similarity evaluation was carried out. The volatile oil of standard decoction was identified by UPLC coupled with quadrupole time-of-flight mass spectrometry （UPLC-Q-TOF/MS）. Then the volatile oil components were analyzed by GC-MS. RESULTS The similarities of UPLC characteristic chromatograms for volatile oil of 15 batches of Qingshang juantong decoction were between 0.949 and 0.997. A total of 12 common peaks were obtained. According to the UPLC-Q-TOF/MS， the main components were methyl eugenol， E-ligustilide， E-butylidenephthalide and so on. A total of 23 components were identified by GC-MS， which were mainly 3，4，5-trimethoxy- methylbenzene， patchouli alcohol， Z-ligustilide and so on. CONCLUSIONS The characteristic chromatograms of the volatile oil in the standard decoction of Qingshang juantong decoction is established， and it is inferred that methyl eugenol， ligustilide， E- butylidenephthalide， patchouli alcohol， 3，4，5-trimethoxy-methylbenzene might be the main active components affecting the clinical therapeutic effect of the volatile oil of Qingshang juantong decoction.
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Objective To explore the chemical basis of Shenxianshengmai oral liquid.Method UHPLC-Q Exactive Focus MS/MS technology was used to identify the chemical components of Shenxianshengmai oral liquid.The chromatographic separation was performed on a Thermo Accucore aQ C18 column(150 mm×2.1 mm,2.6 μm)with mobile phase gradient elution of 0.1%formic acid aqueous solution(A)and methanol(B)for 0-13 min,5%-60%B;13-27 min,60%-95%B;27-30 min,95%B,the flow rate was 0.3 mL·min-1,and the column temperature was at 30℃.The mass spectrometry was performed by heating electrospray ionization(H-ESI)with positive and negative ion scanning modes.The scanning range was m/z 120-1800,and the collision energies were 30 eV,50 eV and 70 eV.Result A total of 160 components were identified,including 29 flavonoids,24 organic acids,21 alkaloids,19 terpenoids,15 phenylpropanoids,12 saponins and 40 other components.Six chemical constituents(rutin,psoralenoside,isopsoralenoside,psoralen,isopsoralen and bakuchiol)were confirmed by comparison with reference substances.Conclusion In this study,an UHPLC-Q Exactive Focus MS/MS method has been established for accurate,rapid and systematic identification of the constituents in Shenxian Shengmai oral liquid,which provides an important basis for clarifying the chemical basis and quality control.
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Eucommia ulmoides， a plant belonging to Eucommiaceae， has a history of medical use for over two thousand years in China. The dried bark and leaves of this plant are usually used as medicinal materials. Due to the high safety in clinical application， E. ulmoides leaves were officially recognized for both medicinal and edible use by the food safety evaluation in 2019， providing a valuable resource for the development of food and health products. According to the traditional Chinese medicine theory， E. ulmoides has the effects of nourishing the liver and kidneys， strengthening sinews and bones， and calming fetus. Modern research has shown that different parts such as the bark， leaves， flowers， and seeds of E. ulmoides contain similar chemical components， including phenylpropanoids， terpenoids， flavonoids， phenolic acids， steroids， and polysaccharides. E. ulmoides exhibits diverse pharmacological activities such as lowering blood pressure and blood lipid and glucose levels， preventing osteoporosis and possesses anti-tumor， anti-bacterial， antiviral， anti-inflammatory， antioxidant， and hepatoprotective effects. Therefore， it holds great potential for the development of products with both medicinal and edible values. This review systematically summarizes the chemical constituents， pharmacological activities， and representative medicinal and edible products of different parts of E. ulmoides. It is expected to provide theoretical references for the clinical application of E. ulmoides and its active components and the development and utilization of the products with both medicinal and edible values. This review contributes to a deeper understanding of the medicinal properties of E. ulmoides and provides guidance for further exploration of its applications in the healthcare field. As a plant with both medicinal and edible values， E. ulmoides is expected to attract more attention in future research and contribute to human health.
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OBJECTIVE To identify the chemical constituents of Rhamni Songoricae Fructus and to establish their fingerprints and the method for simultaneous determination of four constituents to comprehensively evaluate the quality of Rhamni Songoricae Fructus. METHODS The chemical constituents in Rhamni Songoricae Fructus were qualitatively analyzed by ultra-performance liquid chromatography quadrupole-time-of-flight tandem mass spectrometry. The fingerprints of 15 batches of Rhamni Songoricae Fructus were established by HPLC and chemometric analysis was performed by using SPSS 26.0 and SIMCA 14.1 software； the contents of quercetin， kaempferol， kaempferide and emodin were determined by the same method. RESULTS A total of 35 constituents were identified， including 28 kinds of flavonoids， 5 kinds of anthraquinones and 2 kinds of organic acids. A total of 19 common peaks were identified in the HPLC fingerprints， recognizing quercetin， kaempferol， kaempferide and emodin. The similarities between HPLC fingerprints of 15 batches of samples and control chromatograms were greater than 0.9. The results of cluster analysis showed that 15 batches of samples were divided into 2 classes， of which S1-S5， S7 and S9 were one class and the rest were one class， similar to the results of principal component analysis. The results of the orthogonal partial least squares- discriminant analysis showed that the variable importance projections of peaks No. 2， 6， 1， 11 （quercetin）， 3， 14， 8， 10， 19 （emodin）， 5 were all greater than 1. The contents of quercetin， kaempferol， kaempferide and emodin ranged from 0.710 to 10.478 mg/g， 0.236 to 0.660 mg/g， 0.334 to 3.039 mg/g， and 0.261 to 0.504 mg/g. CONCLUSIONS The constructed chemical constituent identification， fingerprint and content determination methods are simple， feasible and reproducible， which combined with chemometric analysis can be used for comprehensive evaluation of the quality of Rhamni Songoricae Fructus.