ABSTRACT
Objective: To screen the differential ingredients between crude and wine-processed Corni Fructus and determin their content. Methods: An integrated strategy using ultra performance liquid chromatography coupled with tandem quadrupole time-of- flight mass spectrometry (UPLC-Q-TOF/MS) and the chemometric approach was applied to compare the global chemical profile of crude and wine-processed Corni Fructus. Then, the main differential ingredients were quantified by UPLC-PDA. Results: The chemical profiling of wine-processed Corni Fructus was significantly different. Ten compounds could be considered as characteristic chemical markers for distinguishing crude and wine-processed Corni Fructus, including 5-hydroxymethyl furfuraldehyde (5-HMF), gallic acid, protocatechuic acid, morroniside, loganic acid, sweroside, cornin, dihydroquercetin, loganin and cornoside. A new UPLC-PDA quantitative method for analyzing simultaneously the above ten compounds in wine-processed Corni Fructus was established. The results of methodology investigation showed that the ten components were well linear within the investigation range (r ≥ 0.999 7). Compared with the crude Corni Fructus, the content of seven components were increased, including gallic acid, 5-HMF, loganin, morroniside, cornin, sweroside and dihydroquercetin, and the other three components in wine-processed Corni Fructus were decreased. Conclusion: The differential ingredients obtained by chemometric-based approach can be used to distinguish crude and wine-processed Corni Fructus. The determination method of wine-processed Corni Fructus established is accurate and reliable, which can be used for the quality control of Corni Fructus.
ABSTRACT
Latex of Parahancornia amapa which is known as "amapa milk" in folk medicine was extracted with hexane, dichloromethane and methanol. From the hexane and dichloromethane were identified mixtures of 3-O-acyl lupeol esters such as identified previously. In the methanol extract, a large amount of carbohydrates, the phenylethanoid glucoside known as cornoside, other phenylethanoids derivatives and methylmyoinositol were identified. The analysis of IR, NMR and GC-LRMS of the natural compounds and tetra-acetylcornoside and comparison with literature data were used to identify the compounds.
O látex de Parahancornia amapa, popularmente conhecido como "leite do amapá" foi extraído com hexano, diclorometano e metanol. As frações obtidas com hexano e diclorometano forneceram misturas de 3-O-acil-lupeol e triterpenos confirmando resultados de estudos já realizados. No extrato metanólico identificou-se uma grande quantidade de mistura de carboidratos, metilmioinositol e derivados de feniletanóides tendo como principal constituinte o cornosídeo. Estes constituintes foram identificados através da análise de espectros de IV, RMN ¹H e 13C e CG-EM das frações e do derivado acetilado do cornosídeo e do metilmioinositol.