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Objective: To establish the chemical fingerprint and multi-index components determination of Tibetan medicine Bangna of Aconitum genus, and provide references for the formulation of quality standards of multi-base original medicinal materials and clinically safe medication. Methods: HPLC fingerprint of Bangna was established and evaluated by the similarity evaluation system of TCM. In addition, the content of the seven components of Bangna from 30 batches and the difference of chemical information between the two species of Bangna was investigated by principal component analysis and orthogonal partial least squares discrimination analysis (OPLS-DA) respectively. Results: A total of 17 common peaks were identified in the fingerprint that was established by the determination of 30 batches of Bangna, and seven components of which were identified with 12-epi-napelline, songorine, benzoylmesaconitine, benzoylaconine, mesaconitine, aconitine, 3-acetylaconitine. Based on similarity results, the fingerprint had good consistency between the same origin and minor diversity between the different sources. The results of principal component analysis and OPLS-DA showed that there were some differences in the content of seven components between the two species. Based on the results of OPLS-DA and t test, it could be determined that the contents of 12-epi-napelline and aconitine of Aconitum flavum were significantly higher than those in Aconitum pendulum (P < 0.01). Conclusion: The fingerprint and multi-component quantitative analysis methods were used for the quality and clinically safe medication control of Bangna in this paper is simple, easy to operate, and informative. Moreover, it is necessary to establish and improve the limit determination of diester alkaloids.
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Objective To establish the adventitious root induction and culture system ofAconitum pendulum Busch.Methods The influence of different explants and plant growth substances on adventitious induction proliferation ofAconitum pendulumBusch were investigated through tissue culturing.Results Explants induction ability was: root>stem>leaf. 2.5 mg/L IBA was in favor of induction and multiplication adventitious root ofAconitum pendulumBusch.ConclusionThe culture system of induction and proliferation adventitious roots ofAconitum pendulum Busch was preliminary established, which provides a new way for resource exploitation and utilization of Aconitum pendulum Busch.
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Objective: To identify Aconitum pendulum Busch. and Aconitum kongboense Lauener. Methods: Aconitum pendulum Busch. and Aconitum kongboense Lauener were identified by microscopical identification and TLC. And the contents of aconitine in the two herbs were determined by HPLC. Results:Microscopical identification showed they were different from each other, and aconitine was used as the reference component. Using the solution consisting of hexane ∶ethyl acetate ∶diethylamine (10 ∶6 ∶0. 8) as the developing solvent, the compositions in the two herbs were different in TLC. The content of aconitine in Aconitum pendulum Busch was 0. 71 mg· g-1 , while that in Aconitum kongboense Lauener was only 0. 03 mg·g-1 . Conclusion:Aconitum pendulum Busch. and Aconitum kong-boense Lauener Identified by microscopical identification, TLC and HPLC,SHOW NOTABLE differences between them, and Aconitum kongboense Lauener should not be used as Aconitum pendulum Busch.
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Objective To study the diterpene alkaloids from the roots and processed products of Aconitum pendulum.Methods The chemical constituents were isolated and purified using silica gel column chromatography.Their structures were determined on the basis of NMR and mass spectra.ResultsTwelve compounds were isolated and identified as deoxyaconitine(1),3-acetylaconitine(2),aconitine(3),15?-OH-neoline(4),8-acetyl-15-hydroxyneoline(5),neoline(6),14-benzoyl-8-O-methylaconine(7),benzoylaconine(8),polyschistine D(9),benzoyldeoxyaconine(10),polyschistine A(11),and aconine(12).Conclusion Diterpene alkaloids are the main chemical constituents of A.pendulum and compounds 4—8 are found in this plant for the first time.Compared to raw materials,some boiled processed products change into new components:polyschistine D(9),benzoyldeoxyaconine(10),polyschistine A(11),and aconine(12).Identification of these components provides basis for the processing principles.