ABSTRACT
Objective:To identify the chemical constituents of Fangfeng-Tongsheng Pills by ultra-high performance liquid chromatography coupled with hybrid quadrupole-orbitrap mass spectrometry (UPLC-Q-Orbitrap HRMS). Methods:Take Agilent InfinityLab Poroshell 120 C18 column (150 mm×3.0 mm, 2.7 μm) and make water containing 0.1% formic acid and acetonitrile as gradient eluents. Data was collected with positive and negative ion modes using full scan and two-stage threshold-triggered mass modes (Full MS/dd-MS 2) and HESI source. The main chemical constituents of Fangfeng-Tongsheng Pills were identified according to the exact molecular mass, the cleavage fragments of MS 2, the retention time of reference substances, mzVault 2.0 MS database and literature review. Results:A total of 82 chemical constituents including 33 flavonoids, 13 chromones, 8 triterpenoid saponins, 6 coumarin, 5 iridoids, 4 phthalides, 4 terpenoids, 3 phenolic acids, 3 lignans, 2 anthraquinone and 1 alkaloids, were detected and identified.Conclusions:UPLC-Q-Orbitrap HRMS could identify the main chemical constituents of Fangfeng-Tongsheng Pills rapidly and accurately, which may provide a theoretical basis for further studies on the mechnism and quality control of this formula.
ABSTRACT
Objective To identify the common Tibetan herb Dong-Na Duan-Chi by molecular pharmacognosy. Methods Ethnopharmacology investigation was carried out and local herbalists were visited to observe which plants were being used as Dong-Na Duan-Chi. Then, nuclear ribosomal DNA ITS sequences were amplified and sequenced for molecular identification. Results The botanic origins of Dong-Na Duan-Chi in Tibet Autonomous Region were authenticated as two species, i.e. Veronica eriogyne H.Winkl. and Veronica ciliata Fisch.. The sequences of ITS for Veronica eriogyne and Veronica ciliata are 551 bp and 552 bp in size. The results showed that nrDNA ITS sequences could be used to discriminate V.eriogyne and V.ciliata from closely related species. Conclusion nrDNA ITS sequences can be used as the molecular markers to identify the Tibetan herb Dong-Na Duan-Chi from other species of the same genus Veronica L.
ABSTRACT
<p><b>OBJECTIVE</b>To study seed biological characteristics of Gentiana crassicaulis.</p><p><b>METHOD</b>The samples were collected from five localities, and the morphological observation, germination test and viability TTC test were carried out.</p><p><b>RESULT</b>The seed morphological characters of all samples were similar to each other. The viability of all samples was similar to each other, but the germination rate of wild seed was the highest in all samples after stored for 8 months. Also, the seed energy of wild seed and sample 2008XR02 was higher than other three samples. There was no obvious correlation between thousand seed weight and germination rate.</p><p><b>CONCLUSION</b>The quality of wild seed and sample 2008XR02 was superior than that of the other three samples. The results can be used for basic data of in situ conservation and germplasm breeding of G. crassicaulis.</p>