Differences in chemical components in processing of dried ginger-steamed, sand-fried, and rice swill water-bleached Aconiti Lateralis Radix Praeparata pieces in "Jianchang" faction based on UPLC-MS/MS / 中国中药杂志

This study compared the changes in chemical components during the processing of different types of Aconiti Lateralis Radix Praeparata(ALRP) in "Jianchang" faction, i.e., dried ginger-steamed ALRP pieces(Yin-FP), sand-fried ALRP pieces(Yang-FP), and rice swill water-bleached ALRP pieces(DFP), and provided a scientific basis for the mechanism in toxicity reduction and efficacy enhancement from a compositional perspective. Samples were collected during the processing of the three types of ALRP pieces, yielding raw ALRP pieces, water-bleached Yin-FP, ginger juice-moistened Yin-FP, steamed Yin-FP, water-bleached Yang-FP, sand-fried Yang-FP, water-bleached DFP, rice swill water-bleached DFP, and roasted DFP. Aconitine, mesaconitine, hypaconitine, benzoylaconine, benzoylmesaconine, benzoylhypaconine, aconine, mesaconine, hypaconine, salsolinol, fuziline, and higenamine in the extracts were determined by UPLC-MS/MS, and then content analysis and cluster heatmap analysis were performed on 11 sets of samples. During the processing of the three types of ALRP pieces, bleaching significantly reduced the content of 12 alkaloids; steaming, stir-frying, and roasting significantly reduced the content of diester-type alkaloids(aconitine, mesaconitine, and hypaconitine) and significantly increased the content of monoester-type alkaloids(benzoylaconine, benzoylmesaconine, and benzoylhypaconine) and aminoalcohol-type alkaloids(aconine, mesaconine, and hypaconine). During the processing of Yin-FP, the diester-type alkaloids continuously decreased, while the monoester-type and aminoalcohol-type alkaloids showed an initial decrease followed by an increase. During the processing of Yin-FP, Yang-FP, and DFP, the diester-type alkaloids continuously decreased, while the monoester-type and aminoalcohol-type alkaloids showed an initial decrease followed by an increase. Steamed Yin-FP showed a higher increase in content than fried Yang-FP and roasted DFP. Comprehensive analysis of content differences in toxic and therapeutic components in three ALRP pieces suggests that the distinctive processing methods in "Jianchang" faction can indeed achieve detoxification and efficacy enhancement on ALRP. This study provides references for understanding the mechanisms of action of the three processing methods.

Study on identification of aconiti by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry / 法医学杂志

OBJECTIVE@#The merhod of determination of traditional Chinese medicine of aconitum root has been established by using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry.@*METHODS@#With optimized matrix of 2,5-Dihydroxy- benzoic acid for herbal extract, the identification of aconitum root by MALDI-TOF-MS has been conditioned. By comparison of mass spetra of various of aconitium root, their fingerprint mass-to-charge ratios were found to perform identification. With the characteristic mass-to-charge ratios, It was shown that the mass spectrum of raw aconitum roots were obviously different from that of processed aconitum roots.@*RESULTS@#The raw radix aconiti could be differentiated from radix aconiti preparate by determination of MALDI-TOF-MS.@*CONCLUSION@#The identifical method of aconitum root by MALDI-TOF-MS is rapid, precise and sensitive, it can be used in toxicological analysis of medical tangle and illegal medical practice.

Separation and determination of aconitine in medicine wine by reversed-phase high performance liquid chromatography / 法医学杂志

OBJECTIVE@#For the purpose of more accurate and rapid analysis of aconitine in medicine wine, a reversed-phase High Performance Liquid Chromatography (HPLC) method was developed.@*METHODS@#Standard aconitine was added to the blank wine when the wine sample was pretreated. The pretreatment method of samples, the linear range, the precision, the recoveries in the plasma were investigated by using of white wine plasma spiked with standard aconitine.@*RESULTS@#The linear range was 0.45 approximately 9.0 microg x mL(-1), r=0.998 8. The detective limit was 0.45 microg x mL(-1), The intra and inter-day precision of assay for aconitine were less than 3.1% and 4.7% (n=5) in wine respectively. The recoveries of aconitine were more (97.3+/-2.8)% in medicine wine. The HPLC method has been used to investigate the concentration of aconitine in one forensic medicine case.@*CONCLUSION@#The HPLC method of quantitative analysis aconitine is rapid and sensitive. It is only in the 2.0 h that determination of aconitine in the medicine wine.