title: Phenolic Profiling of Duchesnea indica Combining Macroporous Resin Chromatography (MRC) with HPLC-ESI-MS/MS and ESI-IT-MS.
abstract: Duchesnea indica (D. indica) is an important traditional Chinese medicine, and has long been clinically used to treat cancer in Asian countries. It has been described previously as a rich source of phenolic compounds with a broad array of diversified structures, which are the major active ingredients. However, an accurate and complete phenolic profiling has not been determined yet. In the present work, the total phenolic compounds in crude extracts from D. indica were enriched and fractionated over a macroporous resin column, then identified by HPLC-ESI-MS/MS and ESI-IT-MS (ion trap MS). A total of 27 phenolic compounds were identified in D. indica, of which 21 compounds were identified for the first time. These 27 phenolic compounds encompassing four phenolic groups, including ellagitannins, ellagic acid and ellagic acid glycosides, hydroxybenzoic acid and hydroxycinnamic acid derivatives, and flavonols, were then successfully quantified using peak areas against those of the corresponding standards with good linearity (R² > 0.998) in the range of the tested concentrations. As a result, the contents of individual phenolic compounds varied from 6.69 mg per 100 g dry weight (DW) for ellagic acid to 71.36 mg per 100 g DW for brevifolin carboxylate. Not only did this study provide the first phenolic profiling of D. indica, but both the qualitative identification and the subsequent quantitative analysis of 27 phenolic compounds from D. indica should provide a good basis for future exploration of this valuable medicinal plant.
authors.affiliation: Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China. mzzhucn@hotmail.com.|State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China. mzzhucn@hotmail.com.
authors.forename: Mingzhi
authors.initials: M
authors.lastname: Zhu
authors.affiliation: Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China. dongfuxia623@163.com.
authors.forename: Xia
authors.initials: X
authors.lastname: Dong
authors.affiliation: Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China. guomq@wbgcas.cn.|Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China. guomq@wbgcas.cn.
authors.forename: Mingquan
authors.initials: M
authors.lastname: Guo
mesh_terms: D001565:Benzoates / Q000737:chemistry / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D004610:Ellagic Acid / Q000737:chemistry / Q000302:isolation & purification; D044948:Flavonols / Q000737:chemistry / Q000302:isolation & purification; D047348:Hydrolyzable Tannins / Q000737:chemistry / Q000302:isolation & purification*; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry; D031987:Potentilla / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization; D053719:Tandem Mass Spectrometry
chemical_list: D001565:Benzoates; D044948:Flavonols; D047348:Hydrolyzable Tannins; D010936:Plant Extracts; D004610:Ellagic Acid
keywords: Duchesnea indica; HPLC; mass spectrometry; phenolic profiling