ABSTRACT
The main chemical constituents of naphthopyrone reference extract( NRE) with definite content and relatively fixed chemical composition were analyzed and determined. Ultra-high performance liquid chromatography-LTQ-Orbitrap XL mass spectrometry and high performance liquid chromatography were used to systematically study NRE from the aspects of main chemical components and determination. The results showed that the chemical composition of naphthopyrone reference extract of Cassiae Semen was relatively fixed,and seven naphthalopyranones were identified. Cassiaside B_2,cassiaside C_2,rubrofusarin-6-O-β-D-gentiobioside and cassiaside C were the main chemical constituents of NRE,of which the determination and uncertainty results were( 11. 40+ 0. 26) %,( 11. 68+0. 24) %,( 16. 60+0. 22) %,( 28. 8+0. 48) %,respectively. This study contributed to the accurate evaluation of NRE and the foundation for the application of NRE in the quality control of Cassiae Semen,and provided a new idea for the replacement of single chemical reference substance by the reference extract of traditional Chinese medicine.
Subject(s)
Cassia , Chemistry , Certification , Chromatography, High Pressure Liquid , Drugs, Chinese Herbal , Reference Standards , Mass Spectrometry , Plant Extracts , Reference Standards , Quality Control , Seeds , ChemistryABSTRACT
A quality control method of Semen Cassiae was established by using naphthopyrone reference extract(NRE). Meanwhile, the feasibility about NRE replacing single component reference in quality control of traditional Chinese medicine was explored. After NRE of Semen Cassiae being prepared by chromatographic separation technology, we determined the three main components, cassiaside B2, rubrofusarin-6-O-β-D-gentiobioside and cassiaside C. In the meantime, an HPLC analytical method, based on the NRE as standard substance, was developed to determinate the contents of three main components in Semen Cassiae. T-test was used for comparison of the determination results of the two methods(single chemical component and NRE as reference substances, respectively), and the T-test result demonstrated that there was no significant difference between the two methods. The results developed scientific basis for the application of NRE of Semen Cassia in the quality control, which could be applied for the quality control of traditional Chinese medicine using reference extract substituting single chemical reference, and provide a new research model for the quality control of Chinese medicine.
ABSTRACT
Objective To develop a method of quantitative analysis of multi-components by single marker(QAMS) for determination of effective components of naphthopyrone glycosides and anthraquinone aglycone in Cassia tora L.Methods The separation was performed on a Sunfire C18 column (4.6 mm ×250 mm,5 μm), and column temperature 30 ℃.Aetonitrile-0.1% H3PO4 was used as the mobile phase with gradient elution.The detection wavelength was at 278 nm and 284 nm.Relative correction factor by determination of Between aurantio-obtusin and rubrofusarin-gentiobioside or chrysophanol or physcion.the method was evaluated for reproducibility, and the difference between calculated and measured values was compared. Results Rubrofusarin-gentiobioside, aurantio-obtusin, chrysophanol and physcion respectively 0.0503-1.5078, 0.3197-9.5899, 0.5070-15.2108, 0.4027-12.0814μg showed a good linear relationship, and the regression equation is Y =4.95X +2.01(R2 =0.9998),Y =1.03X +0.03(R2 =0.9999),Y=3.98X-0.12(R2 =0.9993),Y =4.81X +0.26(R2 =0.9996).The quantitative results of six batches of Cassia tora L by QAMS was basically consistent with that by external standard method.Conclusion The QAMS method was reliable and accurate, which might be used for the quality control of Cassia tora L.
ABSTRACT
Cassia tora Linn. (Caesalpinaceae) is a semi-wild annual herb grown widely in different places of south-east Asia including India, Northern Australia and Americas. This plant species is well known for having potential in traditional medicine practices for the treatment of a variety of disorders and ailments ranging from simple cough, hypertension to diabetes. Recent scientific investigation reveals its phytochemical as well as biological potential. C. tora has been proven to be medicinally effective for having antimicrobial, antiantioxidant, antihypertensive, antidiabetic and antimutagenic activities, just to name a few. This paper encompasses a comprehensive review on phytochemical and biological aspects of Cassia tora L.
ABSTRACT
RESULTS: Rubrofusarin gentiobioside and isorubrofusarin gentiobioside could convert in water and ammonia at a certain temperature, but the reaction could not happen in acid solvent. On the other hand, solvent and temperature could affect the stability of the two compounds.