OBJECTIVETo establish methods of RP-HPLC respectively for content-determination of two types of constituents in the Cassia obtusifolia respectively, and tp determine the constituents between the raw and roasted seeds of C. obtusifolia in order to distinguish the difference of those seeds.

METHODHPLC systems consisted of Alltima C18 (4.6 mm x 150 mm, 5 microm), column temperature at 30 degrees C, flow rate of 1.0 mL x min(-1). Two different mobile phases and detection wavelengths: I , ACN-THF-0.1% H3 PO4 (17 : 3:80), 278 nm; II , MeOH-0.1% H3PO4 (79:21), 254 nm. Analyzed and compared the content of the two types of constituents between the raw and roasted seeds of C. obtusifolia.

RESULTThe calibrate curves of 5 constituents were linear (r > 0.999 7). The precision and repeatability were perfect (RSD < 1.6%, 1.8%). The samples were stabile during 24 h.

CONCLUSIONThe study provide a better universal reference for evaluating and controlling the quality of C. obtusifolia pieces.

Cassia ; chemistry ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; analysis ; Hot Temperature ; Seeds ; chemistry

OBJECTIVETo establish HPLC fingerprint for the identification of Cassia obtusifolia and compare chemical constituents of the raw and roasted seeds of C. obtusifolia.

METHODChromatographic fingerprint of C. obtusifolia was investigated by RP-HPLC and the gradient elution mode was applied to chromatographic separation. Data were analyzed by fingerprint similarity evaluation software to compare the similarity of the samples for identifying the main chromatographic peaks furthermore.

RESULTHaving compared the HPLC fingerprint of the raw and roasted seeds of C. obtusifolia were compared preliminarily, and 12 main chromatographic peaks were identified.

CONCLUSIONHPLC method can be used in quality control and identification of the raw and roasted seeds of C. obtusifolia.

Cassia ; chemistry ; Chromatography, High Pressure Liquid ; Cooking ; Drugs, Chinese Herbal ; chemistry ; Hot Temperature ; Seeds ; chemistry

OBJECTIVETo investigate the chemical constituents of the roasted seeds of Cassia obtusifolia to illuminate the change of its effective components before and after roasted.

METHODCompounds were separated by silica gel chromatography, and their structures were evaluated by spectral analysis and chemical evidence.

RESULTSeven compounds were isolated from the ethanol extract. Their structures were identified as chrysophanol (1), physcion (2), 8-methoxylchrysophanol (3), beta-sitosterol (4), emodin (5), obtusin (6) and obtusifolin-2-O-beta-D-(6'-O-acetyl) glucopyranside (7).

CONCLUSIONCompounds 1-7 were isolated from the roasted seeds of C. obtusifolia for the first time, and compound 7 was a new compound.

Cassia ; chemistry ; Cooking ; Hot Temperature ; Organic Chemicals ; analysis ; isolation & purification ; Seeds ; chemistry

OBJECTIVETo compare the contents of iridoid in the different processed products from Gardenia jasminoides.

METHODContents of geniposide and genipin gentiobioside in products were determined simultaneously by HPLC. A kromasil C18 column at 35 degrees C was used with the acetonitrile-0.3% formic acid anhydrous (12:88) as the mobile phrase. The detection wavelength was set at 238 nm and the flow rate was 1.0 mL x min(-1).

RESULTThe obtained linearity of the two components was good with that the relative coefficients (r) were over 0.9994 and the average recoveries were 101.8%, 99.1%, respectively.

CONCLUSIONThe method is simple, accurate with good reproducibility. The results showed contents of two components are difference in the different processed products.

Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; Gardenia ; chemistry ; Iridoids ; chemistry

OBJECTIVETo establish the HPLC fingerprint method and compare the changes of chemical compositions of the processed products from Sinapis alba.

METHODThe procedure of HPLC analysis was performed on a agilent TC-C18 (2) column at 35 degrees C with the acetonitrile -0.1% phosphoric acid in gradient elution as the mobile phase. The detection wavelength was set at 254 nm, and the flow rate was 1.0 mL x min(-1). The similarity evaluation system for chromatographic fingerprint of traditional Chinese medicine (Version 2004 A) was applied to analyze the similarity.

RESULTThe average similarities among the processed products were over 0.96, the standard HPLC fingerprint and five main chromatographic peaks with the isolated compounds was obtained and identified.

CONCLUSIONThe established methods with two solvents are suitable for the HPLC fingerprints determination which elementary elucidate the scientific intensions of breaking the enzyme for glycosides.

Chemistry, Pharmaceutical ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; analysis ; Sinapis ; chemistry

OBJECTIVETo compare the contents of diterpenoid pigments in the different processed products of Gardenia jasminoides.

METHODThe separation of Crocin 1, Crocin 2, Crocin 3, Crocetin were determined simultaneously by HPLC on a kromasil C18 column at 35 degrees C with the m methanol-acetonitrile-0.3% formic acid anhydrous in gradient elution as the mobile phrase. The detection wavelength was set at 440 nm and the flow rate was 1.0 mL x min(-1).

RESULTThe obtained linearity of the four components was better over 0.9995 and the average recoveries were 97.77%, 100.05% , 98.40%, 101.02%, respectively.

CONCLUSIONThe method is simple, accurate with good reproducibility. The results showed that the remarkable variation regulations appear among the different processed products.

Carotenoids ; chemistry ; Chromatography, High Pressure Liquid ; Diterpenes ; chemistry ; Drugs, Chinese Herbal ; chemistry ; Gardenia ; chemistry ; Reproducibility of Results

OBJECTIVETo compare the contents of chromones in the different isolation and purification procedures from Saposhnikovia divaricata.

METHODThe separation of six chromones was determined simultaneously by HPLC on a Kromasil C18 column at 35 degrees C with the methanol-0.1% phosphoric acid in gradient elution as the mobile phrase. The detection wavelength was set at 254 nm and the flow rate was 1.0 mL x min(-1).

RESULTAll the obtained correlation coefficient of the six components was over 0.9995 and the average recoveries were not less than 97% (RSD <5%), respectively.

CONCLUSIONThe method is simple, accurate with good reproducibility. Results showed the better preparation procedure is water-decoction and ethanol-precipitation with resin separation and silica gel purification.

Apiaceae ; chemistry ; Chromones ; analysis ; isolation & purification ; Plants, Medicinal ; chemistry

To evaluate the differences of Ophiopogonjaponicus from different cultivations, the metabolomics based method was conducted to compare the effects of Hangmaidong and Chuanmaidong (Chinese name) on plasma endogenous metabolites of normal rats. Data were collected by ultra performance liquid chromatography quadrupole time of flight mass spectrometry (UPLC-Q-TOF/MS), and were analyzed by multivariate statistical method, such as Principal Component Analysis and Orthogonal Signal Correction Partial Least Square Discriminant Analysis. Results revealed that the plasma metabolites profiling of low and middle dose group of Chuanmaidong were similar to the control group, but different from the high dose group obviously. Meanwhile the high, middle and low dose groups of Hangmaidong were different from control group notably, and the difference is dose dependent. Lysophosphatidylcholines, the possible endogenous metabolites which contribute to the classification most significantly, are closely related to cardiovascular system diseases. Compared with the group of Chuanmaidong, Hangmaidong has greater impact on the plasma metabolic profiling of normal rats. Hangmaidong and Chuanmaidong showed significant differences pharmacodynamically.
Animals ; Biomarkers ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; pharmacology ; Least-Squares Analysis ; Mass Spectrometry ; Metabolomics ; Principal Component Analysis ; Rats

OBJECTIVETo compare the contents of five anthraquinone components in five different processed products from Rheum palamatum.

METHODThe contents of aleo-emodin, rhein, emodin, chrysophanol and physcion were determined simultaneously by HPLC on plogilent TC-C18 (2) column at 35 degrees C with the methanol-0.1% phosphoric acid (85: 15). The detection wavelength was set at 254 nm and the flow rate was 1.0 mL x min(-1).

RESULTThe obtained linearity of the five components was better over 0.999 9 and the average recoveries were 96.44%, 98.11%, 99.30%, 98.00% and 97.86%, respectively.

CONCLUSIONThe results showed the remarkable variation regulations show in the five different processed products. Compared to the no-parched pieces, the contents of the five anthraquinone components have evidently increased in the braising with liquor and the charring products, and reduced in the vinegar and the liquor sauted pieces.

Anthraquinones ; analysis ; Pharmaceutical Preparations ; analysis ; Rheum ; chemistry

OBJECTIVETo identificate and compare constituents in the HPLC fingerprint of five Chinese herbal pieces from Radix et Rhizoma Rhei.

METHODHPLC analysis was carried out with methyl alcohol 1% glacial acetic acid as gradient elution, changes in five Chinese herbal pieces and medicinal material under 280 nm and 430 nm were compared.

RESULTHPLC fingerprints of the no-parched pieces, the liquor and the vinegar roasts pieces were similar, 24 peaks were identified under 280 nm 19 or 22 peaks could be indicated in the braising with liquor and the charring respectively. Under 430 nm, 8 peaks were identified except the braising with liquor.

CONCLUSIONHPLC fingerprints of the no-parched pieces, the liquor and the vinegar roasts pieces are similar while the changes on chemical composition and the content in braising with liquor and the charring are remarkable.

Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; analysis ; Rheum ; chemistry