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Sun H, Wang MY, Huang JQ, Cui DX, Leng L, Gao XM, Li X, Yang WZ. Characterization and identification of the wide-polarity multicomponents from Prunella vulgaris by offline two-dimensional liquid chromatography and hydrophilic interaction chromatography coupled to ion mobility-quadrupole time-of-flight mass spectrometry. J Chromatogr A 2024; 1732:465233. [PMID: 39142171 DOI: 10.1016/j.chroma.2024.465233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2024] [Revised: 07/27/2024] [Accepted: 08/06/2024] [Indexed: 08/16/2024]
Abstract
Metabolites identification is crucial to develop functional foods or perform quality control. Prunella vulgaris (Xia-Ku-Cao) is a medicinal and edible plant used as the herbal medicine or main additive in functional beverage. However, current analytical strategies can only on-line characterize tens of compounds, restricted by insufficient chromatographic resolution and low coverage of the mass spectrometric scan methods. This work was designed to characterize the wide-polarity components from the ear of P. vulgaris. The total extract was fractionated by semi-preparative high-performance liquid chromatography into the retained medium-polarity fraction and unretained polar fraction, which were further analyzed by offline two-dimensional liquid chromatography (2D-LC) and hydrophilic interaction chromatography, respectively. Data-independent high-definition MSE of the Vion™ ion mobility time-of-flight mass spectrometer was utilized enabling the high-coverage acquisition of collision-induced dissociation-MS2 data. The offline 2D-LC, configuring the XBridge Amide and HSS T3 columns, gave high orthogonality (0.81) and effective peak capacity (1555). Automatic peak annotation facilitated by the UNIFI™ bioinformatics platform and comparison with 62 reference compounds achieved the efficient and more reliable structural elucidation. We could characterize 255 compounds from P. vulgaris, with numerous phenylpropanoid phenolic acids and triterpenoid O-glycosides newly reported. Especially, collision cross section (CCS) prediction and targeted isolation of three compounds assisted in the identification of 39 groups of isomers. Additionally, 17 hydrophilic compounds, involving oligosaccharides and organic acids, were characterized from the unretained polar fraction. Conclusively, the in-depth metabolites identification of P. vulgaris was accomplished, and the results can benefit the development and better quality control of this valuable plant.
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Affiliation(s)
- He Sun
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China
| | - Meng-Yao Wang
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China
| | - Jia-Qi Huang
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China
| | - Dian-Xin Cui
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China
| | - Ling Leng
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China
| | - Xiu-Mei Gao
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China
| | - Xue Li
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China.
| | - Wen-Zhi Yang
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Tianjin Key Laboratory of Therapeutic Substance of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China.
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Wang Z, Yao M, Ouyang H, He M, Zhao W, Wei W, Cui Y, Yang S, Zhong G, Feng Y, Li J. Characterization of chemical constituents and metabolites in rat plasma after oral administration of Ainsliaea fragrans Champ by using UHPLC-QTOF-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1244:124259. [PMID: 39089065 DOI: 10.1016/j.jchromb.2024.124259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 05/23/2024] [Accepted: 07/24/2024] [Indexed: 08/03/2024]
Abstract
Ainsliaea fragrans Champ, a strong heat-clearing and detoxifying traditional Chinese medicine, has been effectively used for treating chronic cervicitis, endometritis, pelvic inflammatory diseases, and other conditions caused by damp heat. It shows a good effect in the treatment of cervicitis and has broad clinical application prospects. Nevertheless, there is no comprehensive study on its in vivo and in vitro chemical analysis. UHPLC-QTOF-MS/MS combined with the non-targeted characteristic filter analysis were used to conjecture and characterize the chemical components and in vivo metabolites of rats following oral administration of Ainsliaea fragrans Champ. In this study, A total of 85 compounds were identified in Ainsliaea fragrans Champ, including 29 flavonoids, 14 sesquiterpenoids, 25 chlorogenic acids, and 17 other compounds. In the plasma of rats after administration of Ainsliaea fragrans Champ, 160 compounds were deduced (19 prototype compounds and 141 metabolites). The 141 metabolites consist of 50 flavonoids, 80 phenolic acids and 11 Chlorogenic acids. The related metabolic pathways mainly involved demethylation, reduction, sulfonation, decarboxylation, hydroxylation, methylation, and glucuronide conjunction. In summary, the chemical components and metabolites of Ainsliaea fragrans Champ were comprehensively identified by using a rapid and accurate analysis method, which laid a foundation for dissecting its bioactive substances. In addition, it provides a scientific basis for the in-depth study of the material basis of Ainsliaea fragrans Champ efficacy and theoretical support for illustrating the mechanism of medical action and its clinical application.
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Affiliation(s)
- Zhaojun Wang
- jiangxi University of Chinese Medicine, National Pharmaceutical Engineering Center for Solid Preparations of Chinese Herbal Medicine, Nanchang 330006, China
| | - Min Yao
- jiangxi University of Chinese Medicine, National Pharmaceutical Engineering Center for Solid Preparations of Chinese Herbal Medicine, Nanchang 330006, China
| | - Hui Ouyang
- jiangxi University of Chinese Medicine, National Pharmaceutical Engineering Center for Solid Preparations of Chinese Herbal Medicine, Nanchang 330006, China
| | - Mingzhen He
- jiangxi University of Chinese Medicine, National Pharmaceutical Engineering Center for Solid Preparations of Chinese Herbal Medicine, Nanchang 330006, China
| | - Wentong Zhao
- jiangxi University of Chinese Medicine, National Pharmaceutical Engineering Center for Solid Preparations of Chinese Herbal Medicine, Nanchang 330006, China
| | - Wei Wei
- jiangxi University of Chinese Medicine, National Pharmaceutical Engineering Center for Solid Preparations of Chinese Herbal Medicine, Nanchang 330006, China
| | - Yushun Cui
- jiangxi University of Chinese Medicine, National Pharmaceutical Engineering Center for Solid Preparations of Chinese Herbal Medicine, Nanchang 330006, China
| | - Shilin Yang
- jiangxi University of Chinese Medicine, National Pharmaceutical Engineering Center for Solid Preparations of Chinese Herbal Medicine, Nanchang 330006, China
| | - Guoyue Zhong
- jiangxi University of Chinese Medicine, National Pharmaceutical Engineering Center for Solid Preparations of Chinese Herbal Medicine, Nanchang 330006, China
| | - Yulin Feng
- jiangxi University of Chinese Medicine, National Pharmaceutical Engineering Center for Solid Preparations of Chinese Herbal Medicine, Nanchang 330006, China.
| | - Junmao Li
- jiangxi University of Chinese Medicine, National Pharmaceutical Engineering Center for Solid Preparations of Chinese Herbal Medicine, Nanchang 330006, China.
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Frański R. Comment on the "Eco-friendly and efficient extraction of polyphenols from Ligustrum robustum by deep eutectic solvent assisted ultrasound". Food Chem 2024; 437:137814. [PMID: 37879155 DOI: 10.1016/j.foodchem.2023.137814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/14/2023] [Accepted: 10/18/2023] [Indexed: 10/27/2023]
Abstract
Qin et al. have proposed an ecological and efficient method of extraction polyphenols from the leaves of Ligustrum robustum using eutectic solvents, assisted by ultrasounds. The authors tested a number of solvents, optimized the extraction parameters and explored the extraction mechanism. According to the results of biological activity experiments of the prepared Ligustrum robustum leaves extracts, they seem promising for practical applications. The issue which is disputable is the identification of the phenolic compounds by using electrospray ionization mass spectrometry, as described in details in this comment.
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Affiliation(s)
- Rafał Frański
- Adam Mickiewicz University, Faculty of Chemistry, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.
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4
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Alves MF, Katchborian-Neto A, Bueno PCP, Carnevale-Neto F, Casoti R, Ferreira MS, Murgu M, de Paula ACC, Dias DF, Soares MG, Chagas-Paula DA. LC-MS/DIA-based strategy for comprehensive flavonoid profiling: an Ocotea spp. applicability case. RSC Adv 2024; 14:10481-10498. [PMID: 38567345 PMCID: PMC10985591 DOI: 10.1039/d4ra01384k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 03/22/2024] [Indexed: 04/04/2024] Open
Abstract
We introduce a liquid chromatography - mass spectrometry with data-independent acquisition (LC-MS/DIA)-based strategy, specifically tailored to achieve comprehensive and reliable glycosylated flavonoid profiling. This approach facilitates in-depth and simultaneous exploration of all detected precursors and fragments during data processing, employing the widely-used open-source MZmine 3 software. It was applied to a dataset of six Ocotea plant species. This framework suggested 49 flavonoids potentially newly described for these plant species, alongside 45 known features within the genus. Flavonols kaempferol and quercetin, both exhibiting O-glycosylation patterns, were particularly prevalent. Gas-phase fragmentation reactions further supported these findings. For the first time, the apigenin flavone backbone was also annotated in most of the examined Ocotea species. Apigenin derivatives were found mainly in the C-glycoside form, with O. porosa displaying the highest flavone : flavonol ratio. The approach also allowed an unprecedented detection of kaempferol and quercetin in O. porosa species, and it has underscored the untapped potential of LC-MS/DIA data for broad and reliable flavonoid profiling. Our study annotated more than 50 flavonoid backbones in each species, surpassing the current literature.
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Affiliation(s)
- Matheus Fernandes Alves
- Institute of Chemistry, Federal University of Alfenas-MG 37130-001 Alfenas Minas Gerais Brazil
| | - Albert Katchborian-Neto
- Institute of Chemistry, Federal University of Alfenas-MG 37130-001 Alfenas Minas Gerais Brazil
| | - Paula Carolina Pires Bueno
- Leibniz Institute of Vegetable and Ornamental Crops (IGZ) Theodor-Echtermeyer-Weg 1 14979 Großbeeren Germany
| | - Fausto Carnevale-Neto
- Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine, University of Washington 850 Republican Street Seattle Washington 98109 USA
| | - Rosana Casoti
- Antibiotics Department, Federal University of Pernambuco 50670-901 Recife Pernambuco Brazil
| | - Miller Santos Ferreira
- Institute of Chemistry, Federal University of Alfenas-MG 37130-001 Alfenas Minas Gerais Brazil
| | - Michael Murgu
- Waters Corporation Alameda Tocantins 125, Alphaville 06455-020 São Paulo Brazil
| | | | - Danielle Ferreira Dias
- Institute of Chemistry, Federal University of Alfenas-MG 37130-001 Alfenas Minas Gerais Brazil
| | - Marisi Gomes Soares
- Institute of Chemistry, Federal University of Alfenas-MG 37130-001 Alfenas Minas Gerais Brazil
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Zou J, Li H, Wang Z, Ye M. Functional characterization of two efficient glycosyltransferases catalysing the formation of rutin from Sophora japonica L. Org Biomol Chem 2023; 21:7913-7916. [PMID: 37752877 DOI: 10.1039/d3ob01281f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
Two efficient and selective glycosyltransferases were identified from Sophora japonica L. Sj3GT could regio-selectively catalyse 3-O-glucosylation of quercetin to produce isoquercitrin, and Sj6''RhaT could further catalyse its 6''-O-rhamnosylation to generate rutin. It is particularly noteworthy that Sj6''RhaT shows high sugar donor selectivity towards UDP-rhamnose.
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Affiliation(s)
- Jianlin Zou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Hongye Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Zilong Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Min Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
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Li T, Zhang K, Niu X, Chen W, Yang X, Gong X, Tu P, Wang Y, Liu W, Song Y. MS/MS fingerprint comparison between adjacent generations enables substructure identification: Flavonoid glycosides as cases. J Pharm Biomed Anal 2023; 234:115559. [PMID: 37393693 DOI: 10.1016/j.jpba.2023.115559] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 06/20/2023] [Accepted: 06/27/2023] [Indexed: 07/04/2023]
Abstract
MS/MS spectrum matching currently serves as a favored means to identify the concerned metabolites attributing to the accessibility of several famous databases. However, the rule that takes the entire structure into account frequently leads to "0 hit" when inquiring MS/MS (usually MS2) spectrum in the databases. Conjugation plays an important role for the high-level structural diversity of metabolites in all organisms, and a given conjugate usually consists of two or more substructures. If MS3 spectra participate in database retrieval, the structural annotation potential of those databases should be dramatically expanded via identifying substructures. Attributing to the ubiquitous distribution pattern, flavonoid glycosides were deployed as the representative family to justify whether the primary fragment ion termed as Y0+, resulted from neutral loss of glycosyl residue(s), generated identical MS3 spectrum with MS2 spectrum of the aglycone cation namely [A+H]+. Because of owning unique ability to measure MS/MS spectrum with the exactly desired exciting energy, linear ion trap chamber of Qtrap-MS was responsible for generating the desired MS3 and MS2 spectra. When taking both m/z and ion intensity features into consideration, the findings included: 1) glycosides sharing identical aglycones produced the same MS3 spectra for Y0+; 2) different MS3 spectra for Y0+ occurred amongst glycosides bearing distinct, even isomeric, aglycones; 3) isomeric aglycones generated different MS2 spectra; and 4) MS3 spectra for Y0+ agreed with MS2 spectra of [A+H]+ when comparing paired glycoside and aglycone. Together, fingerprint comparison between MS3 and MS2 spectra could structurally annotate the substructures and further advance MS/MS spectrum matching towards the identification of, but not limited to, aglycones for flavonoid glycosides.
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Affiliation(s)
- Ting Li
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Ke Zhang
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xiaoya Niu
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Wei Chen
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xiangfen Yang
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xingcheng Gong
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Pengfei Tu
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa 999078, Macao
| | - Wenjing Liu
- School of Pharmacy, Henan University of Chinese Medicine, Jinshui East Road, Zhengdong New District, Zhengzhou 450046, China.
| | - Yuelin Song
- Modern Research Center for Traditional Chinese Medicine, Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
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Yin J, Li C, Zhang J, Ding H, Han L, Yang W, Li F, Song X, Bie S, Yu H, Li Z. Comprehensive multicomponent characterization and quality assessment of Shuang-Huang-Lian powder injection using ultra-high-performance liquid chromatography-quadrupole time-of-flight-mass spectrometry and ultra-high-performance liquid chromatography-quadrupole-Orbitrap-mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2023; 37:e9479. [PMID: 36690334 DOI: 10.1002/rcm.9479] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/18/2023] [Accepted: 01/18/2023] [Indexed: 06/17/2023]
Abstract
RATIONALE Shuang-Huang-Lian powder injection (SHLPI) is a well-known modern traditional Chinese medicine formula preparation (TCMFP) widely used to treat acute upper respiratory infections. However, SHLPI is extracted from pure Chinese medicine and administered through an injection, and many adverse reactions have been reported clinically. Therefore, it is necessary to characterize in depth the chemical composition of SHLPI and quantitatively analyze its potential allergenic components. METHODS In this study, the samples were analyzed using ion mobility ultra-high-performance liquid chromatography-quadrupole time-of-flight-mass spectrometry (UHPLC-QTOF-MS) combined with a self-built database. Furthermore, the parallel reaction monitoring (PRM) model of ultra-high-performance liquid chromatography-quadrupole-Orbitrap-mass spectrometry (UHPLC-Q-Orbitrap-MS) was used to successfully quantify 10 representative bioactive components. RESULTS Using this strategy 90 compounds were identified, the fragmentation pathways of five representative compounds in the five main components of SHLPI were summarized, and 10 components (neochlorogenic acid, chlorogenic acid, sweroside, forsythiaside A, luteoloside, isochlorogenic acid B, isochlorogenic acid C, baicalin, phillyrin, and baicalein) were determine as the quality markers of SHLPI based on UPLC-Q-Orbitrap-MS. CONCLUSIONS This work comprehensively characterized the material basis of SHLPI, summarized the cracking laws of representative substances, and quantitatively analyzed 10 potential allergenic components. Therefore, this study could provide a basis for the quality control of SHLPI and the clinical rational use of drugs to reduce its adverse reactions.
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Affiliation(s)
- Jiaxin Yin
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Chao Li
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Jie Zhang
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Hui Ding
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Lifeng Han
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Wenzhi Yang
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
| | - Fangyi Li
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin, P. R. China
| | - Xinbo Song
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin, P. R. China
| | - Songtao Bie
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin, P. R. China
| | - Heshui Yu
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin, P. R. China
| | - Zheng Li
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P. R. China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin, P. R. China
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Bai J, Jing X, Yang Y, Wang X, Feng Y, Ge F, Li J, Yao M. Comprehensive profiling of chemical composition of Gleditsiae spina using ultra-high-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2023; 37:e9467. [PMID: 36594178 DOI: 10.1002/rcm.9467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/27/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
RATIONALE Gleditsiae spina (GS) is an important herb used in traditional and folk medicinal systems of East Asian countries for its various medicinal properties. In China, it has been traditionally used through the centuries for its anticancer, detoxication, detumescence, apocenosis, and antiparasitic effects. Although some of its ingredients have been isolated and identified, most active constituents remain unknown. Past research mostly exploited nuclear magnetic resonance for the identification of compounds, which is suitable for monomers only. Moreover, the extraction and isolation procedures for obtaining purified molecules are time consuming. Therefore, establishing an efficient approach will assist in rapid discovery of the potential active ingredients of GS. The present study aimed to identify the chemical constituents in GS by a data analysis strategy using ultra-high-performance liquid chromatography combined with quadrupole time-of-flight tandem mass spectrometry. METHODS First, the theoretical formula of the candidate compound was calculated using the accurate mass of the precursor/adduct ions. Second, the compounds were classified by the diagnostic ions from the MS/MS data. Third, characteristic ion filtering was used to identify the structures. Finally, the diverse skeletons and substitutions were further identified through the neutral loss in the GS. RESULTS A total of 277 compounds were identified in GS, comprising 169 flavonoids, 70 lignans, and 38 other compounds. At least 43 potential new compounds were represented. CONCLUSIONS This experiment devised an efficient and systematic method for detecting complex compounds and provided a foundation for future research into bioactive ingredients and quality control of GS.
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Affiliation(s)
- Jiqing Bai
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Xiucun Jing
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Yuangui Yang
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Xiaoping Wang
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Yulin Feng
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Fei Ge
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Junmao Li
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Min Yao
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, China
- Jiangxi Institute for Drug Control, Nanchang, China
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Integration of a hybrid scan approach and in-house high-resolution MS2 spectral database for charactering the multicomponents of Xuebijing Injection. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2022.104519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Characterization of Constituents with Potential Anti-Inflammatory Activity in Chinese Lonicera Species by UHPLC-HRMS Based Metabolite Profiling. Metabolites 2022; 12:metabo12040288. [PMID: 35448474 PMCID: PMC9027581 DOI: 10.3390/metabo12040288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/16/2022] [Accepted: 03/19/2022] [Indexed: 01/02/2023] Open
Abstract
This study centered on detecting potentially anti-inflammatory active constituents in ethanolic extracts of Chinese Lonicera species by taking an UHPLC-HRMS-based metabolite profiling approach. Extracts from eight different Lonicera species were subjected to both UHPLC-HRMS analysis and to pharmacological testing in three different cellular inflammation-related assays. Compounds exhibiting high correlations in orthogonal projections to latent structures discriminant analysis (OPLS-DA) of pharmacological and MS data served as potentially activity-related candidates. Of these candidates, 65 were tentatively or unambiguously annotated. 7-Hydroxy-5,3′,4′,5′-tetramethoxyflavone and three bioflavonoids, as well as three C32- and one C34-acetylated polyhydroxy fatty acid, were isolated from Lonicera hypoglauca leaves for the first time, and their structures were fully or partially elucidated. Of the potentially active candidate compounds, 15 were subsequently subjected to pharmacological testing. Their activities could be experimentally verified in part, emphasizing the relevance of Lonicera species as a source of anti-inflammatory active constituents. However, some compounds also impaired the cell viability. Overall, the approach was found useful to narrow down the number of potentially bioactive constituents in the complex extracts investigated. In the future, the application of more refined concepts, such as extract prefractionation combined with bio-chemometrics, may help to further enhance the reliability of candidate selection.
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Qian YX, Zhao DX, Wang HD, Sun H, Xiong Y, Xu XY, Hu WD, Liu MY, Chen BX, Hu Y, Li X, Jiang MT, Yang WZ, Gao XM. An ion mobility-enabled and high-efficiency hybrid scan approach in combination with ultra-high performance liquid chromatography enabling the comprehensive characterization of the multicomponents from Carthamus tinctorius. J Chromatogr A 2022; 1667:462904. [DOI: 10.1016/j.chroma.2022.462904] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/11/2022] [Accepted: 02/12/2022] [Indexed: 01/09/2023]
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Li Y, Cui Z, Li Y, Gao J, Tao R, Li J, Li Y, Luo J. Integrated molecular networking strategy enhance the accuracy and visualization of components identification: A case study of Ginkgo biloba leaf extract. J Pharm Biomed Anal 2021; 209:114523. [PMID: 34894462 DOI: 10.1016/j.jpba.2021.114523] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/02/2021] [Accepted: 12/03/2021] [Indexed: 12/15/2022]
Abstract
Molecular networking (MN) is an efficient tool for natural product research. However, single MN might lead to false annotation due to the limited information, and the importance of combining MN with chromatogram is always ignored. In this study, we proposed a comprehensive MN strategy combining feature-based molecular networking (FBMN) and dual ionization mode MS/MS to improve the annotation accuracy and to achieve structural feature visualization in a chemotaxonomic chromatogram. Three steps were taken: (1) employing FBMN and dual ionization mode MS/MS to distinguish isomers and improve components' identification accuracy. (2) Using a 3-level initiative supported by in-house database to evaluate the annotation confidence. As a result, 95 compounds were successfully identified from Ginkgo biloba leaf extract (GBE) and Ginkgo biloba leaf (GBL), and 70 compounds mainly consisting of flavonoid glycosides, ginkgolides, and lignan glycosides were assigned as high-confidence molecules. (3) Building color-dependent chemotaxonomic chromatograms, to achieve component visualization by connecting FBMN with chromatogram in which the peaks of the same color indicated the compounds with similar structural features. Our research provided a new and efficient strategy for component identification and visualization of herbal medicine.
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Affiliation(s)
- Yongyi Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Zhirong Cui
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Ying Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Juanjuan Gao
- Testing & Analysis Center, Nanjing Normal University, Nanjing 210046, People's Republic of China
| | - Rong Tao
- Testing & Analysis Center, Nanjing Normal University, Nanjing 210046, People's Republic of China
| | - Jixin Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Yi Li
- Testing & Analysis Center, Nanjing Normal University, Nanjing 210046, People's Republic of China.
| | - Jun Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China.
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Wen Z, Zhang ZM, Zhong L, Fan J, Li M, Ma Y, Zhou Y, Zhang W, Guo B, Chen B, Wang JB. Directed Evolution of a Plant Glycosyltransferase for Chemo- and Regioselective Glycosylation of Pharmaceutically Significant Flavonoids. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04191] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zexing Wen
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) and Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Zhi-Min Zhang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, P. R. China
- Guangdong Youmei Institute of Intelligent Bio-manufacturing, Foshan, Guangdong 528200, P. R. China
| | - Liang Zhong
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, P. R. China
| | - Jiaqian Fan
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) and Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Min Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) and Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Yuanhong Ma
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) and Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Yang Zhou
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, P. R. China
| | - Wei Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) and Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Bin Guo
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) and Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Bo Chen
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) and Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Jian-Bo Wang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education) and Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
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Beszterda M, Frański R. Elucidation of glycosylation sites of kaempferol di-O-glycosides from methanolic extract of the leaves of Prunus domestica subsp. syriaca. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9100. [PMID: 33830532 DOI: 10.1002/rcm.9100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/28/2021] [Accepted: 04/03/2021] [Indexed: 06/12/2023]
Abstract
RATIONALE Flavonol glycosides containing the glycosylation patterns 3,4'-di-O and 4',7-di-O are rare in nature and they have not yet been studied in detail by electrospray ionization mass spectrometry (ESI-MS(+/-), in contrast to the flavonol glycosides containing the glycosylation pattern 3,7-di-O. METHOD The leaves from Prunus domestica L. subsp. syriaca were extracted with pure methanol or, in order to perform hydrolysis and extraction simultaneously, with a 5% methanolic solution of hydrochloric acid. The high-performance liquid chromatography (HPLC)/ESI-MS(+/-) analyses were performed using a Waters model 2690 HPLC pump and a Waters/Micromass ZQ2000 mass spectrometer. RESULTS Three kinds of kaempferol di-O-glycosides have been identified, namely kaempferol-3-O-hexoside-7-O-rhamnosides, kaempferol-3-O-pentoside-4'-O-rhamnosides and kaempferol 4',7-di-O-rhamnoside. The identification was performed on the basis of the abundances of the respective Y-type product ions. CONCLUSIONS The abundances of [Yn 0 - H]-· , Yn 0 - and Yn 0 + product ions were of crucial importance for the determination of glycosylation patterns. The obtained results can be useful for HPLC/ESI-MS identification of rare flavonol-di-O-glycosides.
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Affiliation(s)
- Monika Beszterda
- Department of Food Biochemistry and Analysis, Poznań University of Life Sciences, Mazowiecka 48, Poznań, 60-623, Poland
| | - Rafał Frański
- Faculty of Chemistry, Uniwersytetu Poznańskiego 8, Adam Mickiewicz University, Poznań, 61-614, Poland
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NMR and LC-MS n coupled with pharmacological network analysis for the assessment of phytochemical content and biopharmaceutical potential of Carapa procera extracts. J Pharm Biomed Anal 2021; 203:114184. [PMID: 34107441 DOI: 10.1016/j.jpba.2021.114184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/08/2021] [Accepted: 05/30/2021] [Indexed: 11/22/2022]
Abstract
The methanolic and water extracts of Carapa procera leaves and stem barks were screened for their phytochemical content using a multi-technique approach. The extracts were also assessed for their in vitro antioxidant capacity along with their anti-diabetic (α-amylase, α-glucosidase), anti-tyrosinase, anti-elastase and anti-cholinesterase (AChE, BChE) activities. Furthermore, antibacterial and antifungal effects were determined against several bacterial and fungal strains. Data Integration Analysis for Biomarker discovery using Latent components (DIABLO) integrative analysis was conducted on collected data to determine the influence of extraction solvents and plant parts on phytochemical content, antioxidant properties and enzyme inhibitory properties of C. procera samples. Additionally, the major identified compounds were screened as modulators of multiple pathways involved in human diseases via Gene Ontology (GO) enrichment analysis. Results showed that methanolic stem bark extract exhibited the most potent ABTS scavenging, Cu2+ and Fe3+ reducing power, total antioxidant capacity and Fe2+ chelating power and displayed the highest total flavanol content. Methanolic extracts of leaves and stem barks were abounded with phenolics and had the greatest anti-AChE, anti-BChE, anti-tyrosinase and anti-elastase activities. A significant antifungal activity was observed, with the lowest minimum inhibitory concentration and minimum fungicidal values of 0.07 and 0.15 mg/mL, respectively. DIABLO integrative analysis suggested that the phytochemical content and biological activities varied significantly within the plant parts and were influenced by types of solvent used. GO enrichment analysis on the main bioactive compounds showed modulation of multiple pathways associated with cancer. Obtained results demonstrated that stem bark and leaves of C. procera can be considered as promising sources of bioactive molecules with high pharmacological values.
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Comment on "Phenolic profiling and evaluation of in vitro antioxidant, α-glucosidase and α-amylase inhibitory activities of Lepisanthes fruticosa (Roxb) Leenh fruit extracts". Food Chem 2021; 361:130107. [PMID: 34087569 DOI: 10.1016/j.foodchem.2021.130107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/29/2021] [Accepted: 05/04/2021] [Indexed: 02/03/2023]
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Dall’Acqua S, Sinan KI, Sut S, Ferrarese I, Etienne OK, Mahomoodally MF, Lobine D, Zengin G. Evaluation of Antioxidant and Enzyme Inhibition Properties of Croton hirtus L'Hér. Extracts Obtained with Different Solvents. Molecules 2021; 26:1902. [PMID: 33800622 PMCID: PMC8038089 DOI: 10.3390/molecules26071902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/20/2021] [Accepted: 03/25/2021] [Indexed: 11/20/2022] Open
Abstract
Croton hirtus L'Hér methanol extract was studied by NMR and two different LC-DAD-MSn using electrospray (ESI) and atmospheric pressure chemical ionization (APCI) sources to obtain a quali-quantitative fingerprint. Forty different phytochemicals were identified, and twenty of them were quantified, whereas the main constituents were dihydro α ionol-O-[arabinosil(1-6) glucoside] (133 mg/g), dihydro β ionol-O-[arabinosil(1-6) glucoside] (80 mg/g), β-sitosterol (49 mg/g), and isorhamnetin-3-O-rutinoside (26 mg/g). C. hirtus was extracted with different solvents-namely, water, methanol, dichloromethane, and ethyl acetate-and the extracts were assayed using different in vitro tests. The methanolic extracts presented the highest 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2'-azino-bis(3-ethylbenzothiazoline)-6-sulfonic acid (ABTS), and ferric reducing antioxidant power (FRAP) values. All the tested extracts exhibited inhibitory effects on acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), with a higher activity observed for dichloromethane (AChE: 5.03 and BChE: 16.41 mgGALAE/g), while the methanolic extract showed highest impact against tyrosinase (49.83 mgKAE/g). Taken together, these findings suggest C. hirtus as a novel source of bioactive phytochemicals with potential for commercial development.
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Affiliation(s)
- Stefano Dall’Acqua
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131 Padova, Italy; (S.S.); (I.F.)
| | - Kouadio Ibrahime Sinan
- Department of Biology, Science Faculty, Selcuk University, Campus, 42130 Konya, Turkey; (K.I.S.); (G.Z.)
| | - Stefania Sut
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131 Padova, Italy; (S.S.); (I.F.)
| | - Irene Ferrarese
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131 Padova, Italy; (S.S.); (I.F.)
| | - Ouattara Katinan Etienne
- Laboratoire de Botanique, UFR Biosciences, Université Félix Houphouët-Boigny, 00225 Abidjan, Côte d’Ivoire;
| | - Mohamad Fawzi Mahomoodally
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, 230 Réduit, Mauritius;
| | - Devina Lobine
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, 230 Réduit, Mauritius;
| | - Gokhan Zengin
- Department of Biology, Science Faculty, Selcuk University, Campus, 42130 Konya, Turkey; (K.I.S.); (G.Z.)
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Gao B, Ma Y, Zhang LT, Ren Q. Identification and characterization of the chemical components of Iris tectorum Maxim. and evaluation of their nitric oxide inhibitory activity. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e8959. [PMID: 33001505 DOI: 10.1002/rcm.8959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/07/2020] [Accepted: 09/25/2020] [Indexed: 06/11/2023]
Abstract
RATIONALE Iris tectorum Maxim. is a traditional medicinal herb that is commonly used to treat inflammatory conditions. The present study investigated the fragmentation patterns of isoflavone glycosides and their qualitative analysis. In addition, lipopolysaccharide (LPS)-induced RAW264.7 macrophages were used to evaluate the anti-inflammatory properties of I. tectorum Maxim. samples collected at different time points during the year. METHODS High-performance liquid chromatography/quadrupole time-of-flight tandem mass spectrometry (HPLC/QTOF-MS/MS) and HPLC with diode-array detection were employed for qualitative and quantitative analysis. The fragmentation patterns of the isoflavones were observed in negative electrospray ionization mode with collision-induced dissociation (CID). Their anti-inflammatory activity was assessed via nitric oxide (NO) production in LPS-treated RAW264.7 macrophages. RESULTS A total of 15 chemical components were observed and tentatively identified using HPLC/QTOF-MS/MS. At low collision energy, the relative abundances of the aglycone radical anions Y0 - , [Y0 - H]-• , [Y0 - CH3 ]-• and [Y0 - H- CH2 ]-• were used for the structural characterization of tectoridin and tectorigenin-4'-O-β-D-glucoside. The radical ions [Y0 - CH3 ]-• and [Y0 - H - 2CH3 ]-• were also employed to differentiate between iristectorin A and iristectorin B based upon their high-energy CID spectra. Levels of 9.02 mg/g of tectoridin and 1.04 mg/g of tectorigenin were found in samples collected in June, which exhibited 69.7% NO inhibitory activity. CONCLUSIONS The characteristic fragmentation patterns enabled us to reliably identify isoflavone glycosides. The results of the quantitative determination and NO inhibitory activity offer insight into the optimal I. tectorum Maxim. harvesting time.
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Affiliation(s)
- Bo Gao
- Department of Pharmacy, Jining Medical University, Rizhao, Shandong, China
| | - Yu Ma
- Department of Pharmacy, Jining Medical University, Rizhao, Shandong, China
| | - Li-Tao Zhang
- Department of Biological Science, Jining Medical University, Rizhao, Shandong, China
| | - Qiang Ren
- Department of Pharmacy, Jining Medical University, Rizhao, Shandong, China
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Secure and Sustainable Sourcing of Plant Tissues for the Exhaustive Exploration of Their Chemodiversity. Molecules 2020; 25:molecules25245992. [PMID: 33352821 PMCID: PMC7766005 DOI: 10.3390/molecules25245992] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/18/2020] [Accepted: 10/20/2020] [Indexed: 12/20/2022] Open
Abstract
The main challenge of plant chemical diversity exploration is how to develop tools to study exhaustively plant tissues. Their sustainable sourcing is a limitation as bioguided strategies and dereplication need quite large amounts of plant material. We examine if alternative solutions could overcome these difficulties by obtaining a secure, sustainable, and scalable source of tissues able to biosynthesize an array of metabolites. As this approach would be as independent of the botanical origin as possible, we chose eight plant species from different families. We applied a four steps culture establishment procedure, monitoring targeted compounds through mass spectrometry-based analytical methods. We also characterized the capacities of leaf explants in culture to produce diverse secondary metabolites. In vitro cultures were successfully established for six species with leaf explants still producing a diversity of compounds after the culture establishment procedure. Furthermore, explants from leaves of axenic plantlets were also analyzed. The detection of marker compounds was confirmed after six days in culture for all tested species. Our results show that the first stage of this approach aiming at easing exploration of plant chemodiversity was completed, and leaf tissues could offer an interesting alternative providing a constant source of natural compounds.
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Dušek M, Jandovská V, Mikyška A, Olšovská J. Novel and efficient approach to identify hop cultivars (Humulus lupulus L.) using cultivar identification diagram strategy based on fingerprint of flavonol di- and tri-O-glycosides. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03653-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kim J, Assefa AD, Song J, Mani V, Park S, Lee SK, Lee K, Kim DG, Hahn BS. Assessment of Metabolic Profiles in Florets of Carthamus Species Using Ultra-Performance Liquid Chromatography-Mass Spectrometry. Metabolites 2020; 10:metabo10110440. [PMID: 33143321 PMCID: PMC7693801 DOI: 10.3390/metabo10110440] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 10/28/2020] [Accepted: 10/28/2020] [Indexed: 12/24/2022] Open
Abstract
The genus Carthamus is a diverse group of plants belonging to the family Compositae. Florets of Carthamus species exhibit various colors, including white, yellow, orange, and red, which are related to their metabolite compositions. We aimed to investigate the metabolites accumulated in florets of three wild (C. lanatus, C. palaestinus, and C. turkestanicus) and one cultivated (C. tinctorius) species of safflower at three developmental stages. Metabolites were extracted from freeze-dried florets using 70% methanol; qualification and quantification were carried out using liquid chromatography quadrupole time-of-flight mass spectrometry in positive and negative ion modes followed by extraction of the peaks. Fifty-six metabolites, including phenylpropanoids, chalcones, isoflavonoids, flavanones, flavonols, flavones, and other primary metabolites, were identified for the first time in safflower wild species. The orange florets contained high abundances of safflomin A, anhydrosafflor yellow B, and baimaside, whereas white/cream and light-yellow pigmented florets had high abundances of 1,5-dicaffeoylquinic acid, luteolin 7-O-glucuronide, and apigenin 7-O-β-D-glucuronide. The principal component analysis clearly distinguished the samples based on their pigment types, indicating that color is a dominant factor dictating the identity and amount of the metabolites. Pearson correlation data based on levels of metabolites showed that orange and yellow florets were significantly correlated to each other. White and cream pigmented species were also highly correlated. Comparison between three developmental stages of safflower wild species based on their metabolite profile showed inconsistent. The findings of this study broaden the current knowledge of safflower metabolism. The wide diversity of metabolites in safflower materials also helps in efforts to improve crop quality and agronomic traits.
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Affiliation(s)
- Jiseon Kim
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea; (J.K.); (J.S.); (V.M.); (S.P.); (S.-K.L.); (K.L.)
| | - Awraris Derbie Assefa
- National Agrobiodiversity Center, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea;
| | - Jaeeun Song
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea; (J.K.); (J.S.); (V.M.); (S.P.); (S.-K.L.); (K.L.)
| | - Vimalaj Mani
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea; (J.K.); (J.S.); (V.M.); (S.P.); (S.-K.L.); (K.L.)
| | - Soyoung Park
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea; (J.K.); (J.S.); (V.M.); (S.P.); (S.-K.L.); (K.L.)
| | - Seon-Kyeong Lee
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea; (J.K.); (J.S.); (V.M.); (S.P.); (S.-K.L.); (K.L.)
| | - Kijong Lee
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea; (J.K.); (J.S.); (V.M.); (S.P.); (S.-K.L.); (K.L.)
| | - Dong-Gwan Kim
- Department of Bio-Industry and Bio-Resource Engineering, Sejong University, Seoul 05006, Korea;
| | - Bum-Soo Hahn
- National Agrobiodiversity Center, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Korea;
- Correspondence: ; Tel.: +82-63-238-4930
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Vidal C, Ruiz A, Ortiz J, Larama G, Perez R, Santander C, Ferreira PAA, Cornejo P. Antioxidant Responses of Phenolic Compounds and Immobilization of Copper in Imperata Cylindrica, a Plant with Potential Use for Bioremediation of Cu Contaminated Environments. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1397. [PMID: 33092309 PMCID: PMC7589974 DOI: 10.3390/plants9101397] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/16/2020] [Accepted: 10/18/2020] [Indexed: 12/14/2022]
Abstract
This work examined the capability of Imperata cylindrica to respond, tolerate and accumulate Cu when growing at high Cu concentration (300 mg kg-1 of substrate) at different times of exposure (2, 14 and 21 days). The Cu accumulation in plants was examined by atomic absorption spectroscopy (AAS) and Cu localized by Scanning Electron Microscopy-Energy Dispersive X-Ray spectroscopy. Additionally, the phenolic compound identifications and concentrations were determined using liquid chromatography coupled to mass spectrometry. Our results showed that root biomass decreased significantly at high Cu levels, with a greater decrease at 21 days (39.8% less biomass in comparison to control). The root showed 328 mg Cu kg-1 dry weight at 21 days of exposure to Cu, being the tissue that accumulates most of the Cu. Lipid peroxidation was a clear indicator of Cu stress, principally in shoots. The exposure to Cu significantly increased the synthesis of phenolic compounds in shoots of plants exposed 21 days to Cu, where 5-caffeoylquinic acid reached the highest concentrations. Our results support that I. cylindrica is a Cu accumulator plant in root organs with a medium level of accumulation (between 200-600 mg Cu kg-1 biomass), which can tolerate the exposure to high Cu levels by means of increasing the synthesis of phenolic compound in shoots, suggesting a potential use as phytoremediation tool in Cu polluted environments.
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Affiliation(s)
- Catalina Vidal
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Avda. Francisco Salazar, 01145 Temuco, Chile; (C.V.); (A.R.); (R.P.); (C.S.)
- Programa de Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Avda. Francisco Salazar, 01145 Temuco, Chile
| | - Antonieta Ruiz
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Avda. Francisco Salazar, 01145 Temuco, Chile; (C.V.); (A.R.); (R.P.); (C.S.)
| | - Javier Ortiz
- Laboratorio de Biorremediación, Facultad de Ciencias Agropecuarias y Forestales, Universidad de La Frontera, Avda. Francisco Salazar, 01145 Temuco, Chile;
| | - Giovanni Larama
- Centro de Modelación y Computación Científica, Universidad de La Frontera, Avda. Francisco Salazar, 01145 Temuco, Chile;
| | - Rodrigo Perez
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Avda. Francisco Salazar, 01145 Temuco, Chile; (C.V.); (A.R.); (R.P.); (C.S.)
- Programa de Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Avda. Francisco Salazar, 01145 Temuco, Chile
| | - Christian Santander
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Avda. Francisco Salazar, 01145 Temuco, Chile; (C.V.); (A.R.); (R.P.); (C.S.)
| | | | - Pablo Cornejo
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Avda. Francisco Salazar, 01145 Temuco, Chile; (C.V.); (A.R.); (R.P.); (C.S.)
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Li M, Wang X, Han L, Jia L, Liu E, Li Z, Yu H, Wang Y, Gao X, Yang W. Integration of multicomponent characterization, untargeted metabolomics and mass spectrometry imaging to unveil the holistic chemical transformations and key markers associated with wine steaming of Ligustri Lucidi Fructus. J Chromatogr A 2020; 1624:461228. [DOI: 10.1016/j.chroma.2020.461228] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/15/2020] [Accepted: 05/07/2020] [Indexed: 11/24/2022]
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Luo Y, Wang H, Li X, He T, Wang D, Wang W, Jia W, Lin Z, Chen S. One injection to profile the chemical composition and dual-antioxidation activities of Rosa chinensis Jacq. J Chromatogr A 2020; 1613:460663. [PMID: 31732156 DOI: 10.1016/j.chroma.2019.460663] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 10/23/2019] [Accepted: 10/29/2019] [Indexed: 10/25/2022]
Abstract
An on-line high-performance liquid chromatography-diode-array-detector-electrospray ionization-ion-trap-time-of-flight-mass spectrometry-total antioxidant capacity detection (HPLC-DAD-ESI-IT-TOF-MS-TACD) system was applied for the identification and evaluation of antioxidants in Rosa chinensis Jacq., an edible flower in food industry and a widely used traditional Chinese medicine. With the help of this platform, the HPLC fingerprint, mass fragmentations, and sample activity profiles against 1,1-diphenylpicryl-2-hydrazyl radical (DPPH•) and ferric reducing antioxidant power (FRAP) were recorded after one injection. Using this technique, 80 compounds were separated and identified by their LC/MS behaviors with the assistance of standard compounds. In addition, 11 different Rosa chinensis Jacq. samples were profiled and then quantified for their DPPH• and FRAP activities. Interestingly, a total of 52 compounds showed antioxidative effects against DPPH• and 61 were active against FRAP. The results demonstrated that the on-line system is a powerful technique for antioxidant discovery in Rosa chinensis Jacq. and other food resources.
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Affiliation(s)
- Yukun Luo
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China
| | - Hong Wang
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China
| | - Xiang Li
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China
| | - Tian He
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China
| | - Daidong Wang
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China
| | - Wanwan Wang
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China
| | - Weijuan Jia
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China
| | - Zongtao Lin
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, United States.
| | - Shizhong Chen
- School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China.
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25
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Yi S, Kuang T, Miao Y, Xu Y, Wang Z, Dong LB, Tan N. Discovery and characterization of four glycosyltransferases involved in anthraquinone glycoside biosynthesis in Rubia yunnanensis. Org Chem Front 2020. [DOI: 10.1039/d0qo00579g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four new glycosyltransferases, which were discovered from Rubia yunnanensis for mediating anthraquinone glycoside biosynthesis, were identified through the analysis of broad substrates, sugar promiscuous, and regioselective glycosylation.
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Affiliation(s)
- Shanyong Yi
- State Key Laboratory of Natural Medicines
- Department of TCMs Pharmaceuticals
- School of Traditional Chinese Pharmacy
- China Pharmaceutical University
- Nanjing 211198
| | - Tongdong Kuang
- State Key Laboratory of Natural Medicines
- Department of TCMs Pharmaceuticals
- School of Traditional Chinese Pharmacy
- China Pharmaceutical University
- Nanjing 211198
| | - Yuanyuan Miao
- State Key Laboratory of Natural Medicines
- Department of TCMs Pharmaceuticals
- School of Traditional Chinese Pharmacy
- China Pharmaceutical University
- Nanjing 211198
| | - Yanqing Xu
- State Key Laboratory of Natural Medicines
- Department of TCMs Pharmaceuticals
- School of Traditional Chinese Pharmacy
- China Pharmaceutical University
- Nanjing 211198
| | - Zhe Wang
- State Key Laboratory of Natural Medicines
- Department of TCMs Pharmaceuticals
- School of Traditional Chinese Pharmacy
- China Pharmaceutical University
- Nanjing 211198
| | - Liao-Bin Dong
- State Key Laboratory of Natural Medicines
- Department of TCMs Pharmaceuticals
- School of Traditional Chinese Pharmacy
- China Pharmaceutical University
- Nanjing 211198
| | - Ninghua Tan
- State Key Laboratory of Natural Medicines
- Department of TCMs Pharmaceuticals
- School of Traditional Chinese Pharmacy
- China Pharmaceutical University
- Nanjing 211198
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Pilon AC, Gu H, Raftery D, Bolzani VDS, Lopes NP, Castro-Gamboa I, Carnevale Neto F. Mass Spectral Similarity Networking and Gas-Phase Fragmentation Reactions in the Structural Analysis of Flavonoid Glycoconjugates. Anal Chem 2019; 91:10413-10423. [PMID: 31313915 DOI: 10.1021/acs.analchem.8b05479] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Flavonoids represent an important class of natural products with a central role in plant physiology and human health. Their accurate annotation using untargeted mass spectrometry analysis still relies on differentiating similar chemical scaffolds through spectral matching to reference library spectra. In this work, we combined molecular network analysis with rules for fragment reactions and chemotaxonomy to enhance the annotation of similar flavonoid glyconjugates. Molecular network topology progressively propagated the flavonoid chemical functionalization according to collision-induced dissociation (CID) reactions, as the following chemical attributes: aglycone nature, saccharide type and number, and presence of methoxy substituents. This structure-based distribution across the spectral networks revealed the chemical composition of flavonoids across intra- and interspecies and guided the putatively assignment of 64 isomers and isobars in the Chrysobalanaceae plant species, most of which are not accurately annotated by automated untargeted MS2 matching. These proof of concept results demonstrate how molecular networking progressively grouped structurally related molecules according to their product ion scans, abundances, and ratios. The approach can be extrapolated to other classes of metabolites sharing similar structures and diagnostic fragments from tandem mass spectrometry.
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Affiliation(s)
- Alan Cesar Pilon
- Núcleo de Bioensaios, Biossíntese e Ecofisiologia de Produtos Naturais (NuBBE), Departamento de Química Orgânica, Instituto de Química , Universidade Estadual Paulista (UNESP) , Araraquara 14800-900 , São Paulo , Brazil.,Núcleo de Pesquisa em Produtos Naturais e Sintéticos (NPPNS), Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto , Universidade de São Paulo , Ribeirão Preto 14040-903 , São Paulo Brazil
| | - Haiwei Gu
- Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine , University of Washington , 850 Republican Street , Seattle , Washington 98109 , United States.,Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation , East China Institute of Technology , Nanchang , Jiangxi Province 330013 , People's Republic of China
| | - Daniel Raftery
- Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine , University of Washington , 850 Republican Street , Seattle , Washington 98109 , United States.,Public Health Sciences Division , Fred Hutchinson Cancer Research Center , Seattle , Washington 98109 , United States
| | - Vanderlan da Silva Bolzani
- Núcleo de Bioensaios, Biossíntese e Ecofisiologia de Produtos Naturais (NuBBE), Departamento de Química Orgânica, Instituto de Química , Universidade Estadual Paulista (UNESP) , Araraquara 14800-900 , São Paulo , Brazil
| | - Norberto Peporine Lopes
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos (NPPNS), Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto , Universidade de São Paulo , Ribeirão Preto 14040-903 , São Paulo Brazil
| | - Ian Castro-Gamboa
- Núcleo de Bioensaios, Biossíntese e Ecofisiologia de Produtos Naturais (NuBBE), Departamento de Química Orgânica, Instituto de Química , Universidade Estadual Paulista (UNESP) , Araraquara 14800-900 , São Paulo , Brazil
| | - Fausto Carnevale Neto
- Núcleo de Bioensaios, Biossíntese e Ecofisiologia de Produtos Naturais (NuBBE), Departamento de Química Orgânica, Instituto de Química , Universidade Estadual Paulista (UNESP) , Araraquara 14800-900 , São Paulo , Brazil.,Núcleo de Pesquisa em Produtos Naturais e Sintéticos (NPPNS), Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto , Universidade de São Paulo , Ribeirão Preto 14040-903 , São Paulo Brazil.,Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine , University of Washington , 850 Republican Street , Seattle , Washington 98109 , United States
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Wang Y, Liang Z, Liao X, Zhou C, Xie Z, Zhu S, Wei G, Huang Y. Identification of C-glycosyl flavones by high performance liquid chromatography electrospray ionization mass spectrometry and quantification of five main C-glycosyl flavones in Flickingeria fimbriata. BMC Chem 2019; 13:94. [PMID: 31384841 PMCID: PMC6661840 DOI: 10.1186/s13065-019-0616-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 07/15/2019] [Indexed: 12/27/2022] Open
Abstract
Flickingeria fimbriata is commonly applied in China as a traditional Chinese medicine (TCM), however the quality control of it is incomplete. In this work, we aim to identify and quantify the structures of C-glycosyl flavones in F. fimbriata. High performance liquid chromatography-diode array detector (HPLC-DAD) and High performance liquid chromatography–electrospray ionization–multiple stage tandem mass spectrometry (HPLC–ESI–MSn) methods were combined to identify C-glycosyl flavones and determine their contents. Twenty acylated C-glycosyl flavones and ten non-acylated C-glycosyl flavones were identified for the first time in F. fimbriata on systematic MSn analysis via HPLC–ESI–MSn. The aglycones of all of these compounds were apigenin or chrysoeriol and were acylated with p-coumaric, ferulic, 3,4-dimethoxycinnamic or 3,4,5-trimethoxycinnamic acids. Furthermore, the quantification result suggest that two C-glycosyl flavones (vicenin-I and vicenin-III) with relative high contents were revealed to be more strongly acylated in F. fimbriata. The method is sufficiently precise, accurate, and sensitive for the qualitative and quantitative analysis of C-glycosyl flavones, which is expected to establish a standard for quality control and identification in this plant.
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Affiliation(s)
- Yawen Wang
- 1College of the First Clinical Medical, Guangzhou University of Chinese Medicine, Guangzhou, 510405 China
| | - Zhiyun Liang
- 1College of the First Clinical Medical, Guangzhou University of Chinese Medicine, Guangzhou, 510405 China
| | - Xian Liao
- 2The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405 China
| | - Chujuan Zhou
- 1College of the First Clinical Medical, Guangzhou University of Chinese Medicine, Guangzhou, 510405 China
| | - Zhenshan Xie
- 1College of the First Clinical Medical, Guangzhou University of Chinese Medicine, Guangzhou, 510405 China
| | - Sha Zhu
- 1College of the First Clinical Medical, Guangzhou University of Chinese Medicine, Guangzhou, 510405 China
| | - Gang Wei
- 3School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006 China.,Shaoguan Institute of Danxia Dendrobium Officinale (SIDDO), Shaoguan, 512005 China
| | - Yuechun Huang
- 1College of the First Clinical Medical, Guangzhou University of Chinese Medicine, Guangzhou, 510405 China.,2The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405 China
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28
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Jia-Xi L, Chun-Xia Z, Ying H, Meng-Han Z, Ya-Nan W, Yue-Xin Q, Jing Y, Wen-Zhi Y, Miao-Miao J, De-An G. Application of multiple chemical and biological approaches for quality assessment of Carthamus tinctorius L. (safflower) by determining both the primary and secondary metabolites. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 58:152826. [PMID: 30836217 DOI: 10.1016/j.phymed.2019.152826] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 12/23/2018] [Accepted: 01/08/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND The florets of Carthamus tinctorius L. (safflower) serve as the source of a reputable herbal medicine targeting gynecological diseases. Conventional investigations regarding the quality control of safflower, however, mainly focused on the secondary metabolites with primary metabolites ignored. PURPOSE To holistically evaluate the quality difference of safflower samples collected from five different producing regions by multiple chemical and biological approaches with both the primary and secondary metabolites considered. METHODS A precursor ions list-triggered data-dependent MS2 approach was established by ultra-high performance liquid chromatography/Q-Orbitrap mass spectrometry (UHPLC/Q-Orbitrap MS) to comprehensively identify the secondary metabolites from safflower. Primary metabolites were identified by various 1D and 2D nuclear magnetic resonance (NMR) experiments. Similarity evaluation and quantitative assays of all the characterized primary metabolites and a quinochalcone C-glycoside (QCG) marker, hydroxysafflor yellow A (HSYA), were performed by quantitative 1H NMR (qNMR) using an external standard method. Multiple in vitro models with respect to the antioxidant, anti-platelet aggregation, and antioxidant stress injury effects, were assayed to determine the efficacy differences. RESULTS Totally thirteen primary metabolites (including one nucleoside, two sugars, five organic alkali/acids, and five amino acids) and 135 secondary metabolites (97 QCGs and 38 flavonoids) could be identified or tentatively characterized from safflower. Good chemical consistency was observed between the commercial safflower samples and a standard safflower sample, with similarity varying in the range of 0.95‒0.99. The results from qNMR-oriented quantitative experiments (thirteen primary metabolites and HSYA) and biological assays indicated the quality of safflower samples from Xinjiang (XJ-2 and XJ-4), Hunan (HuN-1 and HuN-2), and Sichuan (SC), was comparable to the standard safflower sample. CONCLUSION The integration of multiple chemical (using two analytical platforms, UHPLC/Q-Orbitrap MS and NMR) and biological (four in vitro models) approaches by determining both the primary and secondary metabolites demonstrated a powerful strategy that could facilitate the holistic quality evaluation of traditional Chinese medicine.
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Affiliation(s)
- Lu Jia-Xi
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China
| | - Zhang Chun-Xia
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China; Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China
| | - Hu Ying
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China; Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China
| | - Zhang Meng-Han
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China
| | - Wang Ya-Nan
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Qian Yue-Xin
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China; Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China
| | - Yang Jing
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China
| | - Yang Wen-Zhi
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China; Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China.
| | - Jiang Miao-Miao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China; Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China.
| | - Guo De-An
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Tianjin 300193, China; Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
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29
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Wang Z, Wang S, Xu Z, Li M, Chen K, Zhang Y, Hu Z, Zhang M, Zhang Z, Qiao X, Ye M. Highly Promiscuous Flavonoid 3- O-Glycosyltransferase from Scutellaria baicalensis. Org Lett 2019; 21:2241-2245. [PMID: 30848604 DOI: 10.1021/acs.orglett.9b00524] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A highly regio-specific and donor-promiscuous 3- O-glycosyltransferase, Sb3GT1 (UGT78B4), was discovered from Scutellaria baicalensis. Sb3GT1 could accept five sugar donors (UDP-Glc/-Gal/-GlcNAc/-Xyl/-Ara) to catalyze 3- O-glycosylation of 17 flavonols, and the conversion rates could be >98%. Five new glycosides were obtained by scaled-up enzymatic catalysis. Molecular modeling and site-directed mutagenesis revealed that G15 and P187 were critical catalytic residues for the donor promiscuity. Sb3GT1 could be a promising catalyst to increase structural diversity of flavonoid 3- O-glycosides.
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Affiliation(s)
- Zilong Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , 38 Xueyuan Road , Beijing 100191 , China
| | - Shuang Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , 38 Xueyuan Road , Beijing 100191 , China
| | - Zheng Xu
- Hefei National Laboratory for Physical Science at Microscale and School of Life Sciences , University of Science and Technology of China , Hefei 230026 , China
| | - Mingwei Li
- Hefei National Laboratory for Physical Science at Microscale and School of Life Sciences , University of Science and Technology of China , Hefei 230026 , China
| | - Kuan Chen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , 38 Xueyuan Road , Beijing 100191 , China
| | - Yaqun Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , 38 Xueyuan Road , Beijing 100191 , China
| | - Zhimin Hu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , 38 Xueyuan Road , Beijing 100191 , China
| | - Meng Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , 38 Xueyuan Road , Beijing 100191 , China
| | - Zhiyong Zhang
- Hefei National Laboratory for Physical Science at Microscale and School of Life Sciences , University of Science and Technology of China , Hefei 230026 , China
| | - Xue Qiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , 38 Xueyuan Road , Beijing 100191 , China
| | - Min Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , 38 Xueyuan Road , Beijing 100191 , China
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30
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Enhanced identification of the in vivo metabolites of Ecliptae Herba in rat plasma by integrating untargeted data-dependent MS2 and predictive multiple reaction monitoring-information dependent acquisition-enhanced product ion scan. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1109:99-111. [DOI: 10.1016/j.jchromb.2019.02.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 01/31/2019] [Accepted: 02/01/2019] [Indexed: 02/04/2023]
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31
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Hu Z, He J, Chen K, Wang Z, Liu J, Qiao X, Ye M. Molecular cloning and biochemical characterization of a new flavonoid glycosyltransferase from the aquatic plant lotus. Biochem Biophys Res Commun 2019; 510:315-321. [PMID: 30709586 DOI: 10.1016/j.bbrc.2019.01.099] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 01/23/2019] [Indexed: 11/26/2022]
Abstract
Lotus (Nelumbo nucifera Gaertn.), one of the earliest plants in angiosperms, is a perennial aquatic herb widely distributed throughout Eastern Asia. Quercetin and its glycosides are the most abundant phenolic compounds in lotus with multiple pharmacological activities. Although many flavonoid O-glycosyltransferases involved in the biosynthesis of quercetin glycosides have been identified from terrestrial plants, no glycosyltransferase has been identified in aquatic plants. In this study, a new glycosyltransferase (NpUGT6) was identified from the embryo of Nelumbo nucifera (Nelumbinis Plumula). Function characterization demonstrated that NpUGT6 exhibited a robust capability to regio- and stereo-specific O-glycosylation at the 3-hydroxy group of quercetin scaffolds with UDP-glucose. Moreover, the O-glycosylation catalyzed by NpUGT6 was reversible. NpUGT6 is the first identified flavonoid O-glycosyltransferase from aquatic plants. Its sequence will provide useful guidance for the discovery of additional flavonoid glycosyltransferses in Nymphaeaceae and other aquatic plants.
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Affiliation(s)
- Zhimin Hu
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing, 100191, China
| | - Junbin He
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing, 100191, China
| | - Kuan Chen
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing, 100191, China
| | - Zilong Wang
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing, 100191, China
| | - Jiyang Liu
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing, 100191, China
| | - Xue Qiao
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing, 100191, China.
| | - Min Ye
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing, 100191, China.
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Systematic Profiling of the Multicomponents and Authentication of Erzhi Pill by UHPLC/Q-Orbitrap-MS Oriented Rapid Polarity-Switching Data-Dependent Acquisition and Selective Monitoring of the Chemical Markers Deduced from Fingerprint Analysis. Molecules 2018; 23:molecules23123143. [PMID: 30513579 PMCID: PMC6320785 DOI: 10.3390/molecules23123143] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 11/28/2018] [Accepted: 11/28/2018] [Indexed: 12/16/2022] Open
Abstract
The analytical platform UHPLC/Q-Orbitrap-MS offers a solution to quality investigation of TCM with high definiteness. Using Erzhi Pill (EZP) as a case, we developed UHPLC/Q-Orbitrap-MS based approaches to achieve systematic multicomponent identification and rapid authentication. Comprehensive multicomponent characterization of EZP was performed by negative/positive switching data-dependent high-energy collision-induced dissociation-MS2 (HCD-MS2) after 25 min chromatographic separation. By reference compounds comparison, elemental composition analysis, fragmentation pathways interpretation, and retrieval of an in-house library, 366 compounds were separated and detected from EZP, and 96 thereof were structurally characterized. The fingerprints of two component drugs (Ligustri Lucidi Fructus, LLF; Ecliptae Herba, EH) for EZP were analyzed under the same LC-MS condition by full scan in negative mode. In combination with currently available pharmacological reports, eight compounds were deduced as the ‘identity markers’ of EZP. Selective ion monitoring (SIM) of eight marker compounds was conducted to authenticate six batches of EZP samples. Both LLF and EH could be detected from all EZP samples by analyzing the SIM spectra, which could indicate their authenticity. Conclusively, UHPLC/Q-Orbitrap-MS by rapid polarity switching could greatly expand the potency of untargeted profiling with high efficiency, and SIM of multiple chemical markers rendered a practical approach enabling the authentication of TCM formulae.
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Simultaneously targeted and untargeted multicomponent characterization of Erzhi Pill by offline two-dimensional liquid chromatography/quadrupole-Orbitrap mass spectrometry. J Chromatogr A 2018; 1584:87-96. [PMID: 30473109 DOI: 10.1016/j.chroma.2018.11.024] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/19/2018] [Accepted: 11/15/2018] [Indexed: 11/24/2022]
Abstract
Large-scale targeted and untargeted metabolites characterization can be achieved by feat of different liquid chromatography/mass spectrometry (LC-MS) platforms by multiple MS experiments or using data-independent acquisition followed by precursor-product ions matching based on certain algorithms. The resulting insufficiency in efficiency and availability greatly restricts the applicability of these strategies in large-scale profiling and identification of various metabolites. A strategy simultaneously enabling both the targeted and untargeted metabolites characterization is established on a Q Exactive hybrid quadrupole-Orbitrap mass spectrometer, by integrating precursor ions list-triggered data-dependent MS2 acquisition (PIL/dd-MS2) of the targeted components and using the "If idle-pick others" (IIPO) function to induce untargeted metabolites fragmentation. A compounds-specific mass defect filter (MDF) algorithm is proposed as a method to generate the PIL. As a proof of concept, this strategy coupled with offline two-dimensional liquid chromatography (2D-LC) was applied to identify the multicomponents of a traditional Chinese medicine formula Erzhi Pill (EZP). A rigid MDF vehicle was elaborated by orthogonal screening of the integer mass and integer mass-dependent dynamic mass defects considering a variation of 20 ppm. The Full MS/dd-MS2 method enabling PIL and IIPO exhibited better performance than Full MS/dd-MS2 and Targeted SIM/dd-MS2 (selected ion monitoring) in respect of the sensitivity in identifying the targeted components and the ability to characterize more untargeted ones. As a consequence, 270 components were separated from EZP, and 146 thereof were selectively characterized. In conclusion, it is a practical, multifaced strategy facilitating the in-depth metabolites profiling and characterization of complex herbal and biological samples.
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34
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New acylated flavonols identified in Vitis vinifera grapes and wines. Food Res Int 2018; 112:98-107. [DOI: 10.1016/j.foodres.2018.06.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 05/20/2018] [Accepted: 06/06/2018] [Indexed: 12/11/2022]
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35
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Noestheden M, Dennis EG, Romero-Montalvo E, DiLabio GA, Zandberg WF. Detailed characterization of glycosylated sensory-active volatile phenols in smoke-exposed grapes and wine. Food Chem 2018; 259:147-156. [PMID: 29680037 DOI: 10.1016/j.foodchem.2018.03.097] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 03/14/2018] [Accepted: 03/22/2018] [Indexed: 10/17/2022]
Abstract
The exposure of Vitis vinifera L. vines to smoke from wildland fires can alter the chemical composition of the berries, such that the resulting wine can possess a defect known as smoke-taint. This work constitutes a complete method for the analysis of simple volatile phenol glycosides (VP-glycosides) that can be elevated in berries and wine following smoke exposure. We synthesized 16 model VP-glycosides, four of which are not reported previously, to facilitate method development. Fragmentation analysis using high-resolution accurate-mass spectrometry demonstrated that the glycone and aglycone influenced the fragmentation pattern of VP-glycosides. Diagnostic fragmentation patterns for the synthesized VP-glycosides were applied to identify several VP-glycosides in smoke-exposed berries and wine. The fragmentation pattern of VP-disaccharides should facilitate the characterization of modified glycones. Putative non-VP glycosides elevated in smoke-exposed berries are demonstrated for the first time. In tandem with VP-glycosides, such compounds may contribute to the expression of smoke taint.
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Affiliation(s)
- Matthew Noestheden
- Department of Chemistry, University of British Columbia, 3427 University Avenue, Kelowna, British Columbia V1V 1V7, Canada; Supra Research & Development, 4532 Sallows Road, Kelowna, British Columbia V1W 4C2, Canada
| | - Eric G Dennis
- Department of Chemistry, University of British Columbia, 3427 University Avenue, Kelowna, British Columbia V1V 1V7, Canada
| | - Eduardo Romero-Montalvo
- Department of Chemistry, University of British Columbia, 3427 University Avenue, Kelowna, British Columbia V1V 1V7, Canada
| | - Gino A DiLabio
- Department of Chemistry, University of British Columbia, 3427 University Avenue, Kelowna, British Columbia V1V 1V7, Canada; Faculty of Management, University of British Columbia, 1137 Alumni Avenue, Kelowna, British Columbia V1V 1V7, Canada
| | - Wesley F Zandberg
- Department of Chemistry, University of British Columbia, 3427 University Avenue, Kelowna, British Columbia V1V 1V7, Canada.
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Qin Y, Gao B, Shi H, Cao J, Yin C, Lu W, Yu L, Cheng Z. Characterization of flavonol mono-, di-, tri- and tetra- O -glycosides by ultra-performance liquid chromatography-electrospray ionization-quadrupole time-of-flight mass spectrometry and its application for identification of flavonol glycosides in Viola tianschanica. J Pharm Biomed Anal 2017; 142:113-124. [DOI: 10.1016/j.jpba.2017.05.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 05/02/2017] [Accepted: 05/04/2017] [Indexed: 01/26/2023]
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Barnaba C, Dellacassa E, Nicolini G, Giacomelli M, Roman Villegas T, Nardin T, Larcher R. Targeted and untargeted high resolution mass approach for a putative profiling of glycosylated simple phenols in hybrid grapes. Food Res Int 2017; 98:20-33. [PMID: 28610729 DOI: 10.1016/j.foodres.2017.01.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 11/25/2016] [Accepted: 01/12/2017] [Indexed: 11/18/2022]
Abstract
Vitis vinifera is one of the most widespread grapevines around the world representing the raw material for high quality wine production. The availability of more resistant interspecific hybrid vine varieties, developed from crosses between Vitis vinifera and other Vitis species, has generated much interest, also due to the low environmental effect of production. However, hybrid grape wine composition and varietal differences between interspecific hybrids have not been well defined, particularly for the simple phenols profile. The dynamic of these phenols in wines, where the glycosylated forms can be transformed into the free ones during winemaking, also raises an increasing health interest by their role as antoxidants in wine consumers. In this work an on-line SPE clean-up device, to reduce matrix interference, was combined with ultra-high liquid chromatography-high resolution mass spectrometry in order to increase understanding of the phenolic composition of hybrid grape varieties. Specifically, the phenolic composition of 4 hybrid grape varieties (red, Cabernet Cantor and Prior; white, Muscaris and Solaris) and 2 European grape varieties (red, Merlot; white, Chardonnay) was investigated, focusing on free and glycosidically bound simple phenols and considering compound distribution in pulp, skin, seeds and wine. Using a targeted approach 53 free simple phenols and 7 glycosidic precursors were quantified with quantification limits ranging from 0.001 to 2mgKg-1 and calibration R2 of 0.99 for over 86% of compounds. The untargeted approach made it possible to tentatively identify 79 glycosylated precursors of selected free simple phenols in the form of -hexoside (N=30), -pentoside (21), -hexoside-hexoside (17), -hexoside-pentoside (4), -pentoside-hexoside (5) and -pentoside-pentoside (2) derivatives on the basis of accurate mass, isotopic pattern and MS/MS fragmentation.
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Affiliation(s)
- Chiara Barnaba
- Centro Trasferimento Tecnologico, Fondazione E. Mach, via E. Mach 1, 38010 San Michele all'Adige, TN, Italy
| | - Eduardo Dellacassa
- Universidad de la Republica Uruguay, Facultad de Quimica, Gral. Flores 2124, C.P. 11800, Montevideo, Uruguay
| | - Giorgio Nicolini
- Centro Trasferimento Tecnologico, Fondazione E. Mach, via E. Mach 1, 38010 San Michele all'Adige, TN, Italy
| | - Mattia Giacomelli
- Centro Trasferimento Tecnologico, Fondazione E. Mach, via E. Mach 1, 38010 San Michele all'Adige, TN, Italy
| | - Tomas Roman Villegas
- Centro Trasferimento Tecnologico, Fondazione E. Mach, via E. Mach 1, 38010 San Michele all'Adige, TN, Italy
| | - Tiziana Nardin
- Centro Trasferimento Tecnologico, Fondazione E. Mach, via E. Mach 1, 38010 San Michele all'Adige, TN, Italy
| | - Roberto Larcher
- Centro Trasferimento Tecnologico, Fondazione E. Mach, via E. Mach 1, 38010 San Michele all'Adige, TN, Italy.
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An enhanced targeted identification strategy for the selective identification of flavonoid O-glycosides from Carthamus tinctorius by integrating offline two-dimensional liquid chromatography/linear ion-trap-Orbitrap mass spectrometry, high-resolution diagnostic product ions/neutral loss filtering and liquid chromatography-solid phase extraction-nuclear magnetic resonance. J Chromatogr A 2017; 1491:87-97. [PMID: 28256254 DOI: 10.1016/j.chroma.2017.02.041] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 01/23/2017] [Accepted: 02/19/2017] [Indexed: 11/21/2022]
Abstract
Targeted identification of potentially bioactive molecules from herbal medicines is often stymied by the insufficient chromatographic separation, ubiquitous matrix interference, and pervasive isomerism. An enhanced targeted identification strategy is presented and validated by the selective identification of flavonoid O-glycosides (FOGs) from Carthamus tinctorius. It consists of four steps: (i) enhanced separation and detection by offline two-dimensional liquid chromatography/LTQ-Orbitrap MS (offline 2D-LC/LTQ-Orbitrap MS) using collision-induced dissociation (CID) and high-energy C-trap dissociation (HCD); (ii) improved identification of the major aglycones by acid hydrolysis and LC-SPE-NMR; (iii) simplified spectral elucidation by high-resolution diagnostic product ions/neutral loss filtering; and (iv) more convincing structural identification by matching an in-house library. An offline 2D-LC system configuring an Acchrom XAmide column and a BEH Shield RP-18 UPLC® column enabled much better separation of the easily co-eluting components. Combined use of CID and HCD could produce complementary fragmentation information. The intensity ratios of the aglycone ion species ([Y0-H]-/Y0- and [Y0-2H]-/Y0-) in the HCD-MS2 spectra were found diagnostic for discriminating the aglycone subtypes and characterizing the glycosylation patterns. Five aglycone structures (kaempferol, 6-hydroxykaempferol, 6-methoxykaempferol, carthamidin, and isocarthamidin) were identified based on the 1H-NMR data recorded by LC-SPE-NMR. Of the 107 characterized flavonoids, 80 FOGs were first reported from C. tinctorius. Unknown aglycones, pentose, and novel acyl substituents were discovered. A new compound thereof was isolated and fully identified, which could partially validate the MS-oriented identification. This integral strategy can improve the potency, efficiency, and accuracy in the detection of new compounds from medicinal herbs and other natural sources.
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Kachlicki P, Piasecka A, Stobiecki M, Marczak Ł. Structural Characterization of Flavonoid Glycoconjugates and Their Derivatives with Mass Spectrometric Techniques. Molecules 2016; 21:E1494. [PMID: 27834838 PMCID: PMC6273528 DOI: 10.3390/molecules21111494] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 10/30/2016] [Accepted: 10/31/2016] [Indexed: 12/05/2022] Open
Abstract
Mass spectrometry is currently one of the most versatile and sensitive instrumental methods applied to structural characterization of plant secondary metabolite mixtures isolated from biological material including flavonoid glycoconjugates. Resolution of the applied mass spectrometers plays an important role in structural studies of mixtures of the target compounds isolated from biological material. High-resolution analyzers allow obtaining information about elemental composition of the analyzed compounds. Application of various mass spectrometric techniques, including different systems of ionization, analysis of both positive and negative ions of flavonoids, fragmentation of the protonated/deprotonated molecules and in some cases addition of metal ions to the studied compounds before ionization and fragmentation, may improve structural characterization of natural products. In our review we present different strategies allowing structural characterization of positional isomers and isobaric compounds existing in class of flavonoid glycoconjugates and their derivatives, which are synthetized in plants and are important components of the human food and drugs as well as animal feed.
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Affiliation(s)
- Piotr Kachlicki
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
| | - Anna Piasecka
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland.
| | - Maciej Stobiecki
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland.
| | - Łukasz Marczak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland.
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Geng P, Sun J, Zhang M, Li X, Harnly JM, Chen P. Comprehensive characterization of C-glycosyl flavones in wheat (Triticum aestivum L.) germ using UPLC-PDA-ESI/HRMS n and mass defect filtering. JOURNAL OF MASS SPECTROMETRY : JMS 2016; 51:914-930. [PMID: 27373213 PMCID: PMC5067219 DOI: 10.1002/jms.3803] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 06/15/2016] [Accepted: 06/24/2016] [Indexed: 05/25/2023]
Abstract
A comprehensive characterization of C-glycosyl flavones in wheat germ has been conducted using multi-stage high resolution mass spectrometry (HRMSn ) in combination with a mass defect filtering (MDF) technique. MDF performed the initial search of raw data with defined C-glycosyl flavone mass windows and mass defect windows to generate the noise-reduced data focusing on targeted flavonoids. The high specificity of the exact mass measurement permits the unambiguous discrimination of acyl groups (nominal masses of 146, 162 and 176.) from sugar moieties (rhamnose, glucose or galactose and glucuronic acid). A total of 72 flavone C-glycosyl derivatives, including 2 mono-C-glycosides, 34 di-C-glycosides, 15 tri-glycosides, 14 acyl di-C-glycosides and 7 acyl tri-glycosides, were characterized in wheat germ, some of which were considered to be important marker compounds for differentiation of whole grain and refined wheat products. The 7 acylated mono-O-glycosyl-di-C-glycosyl flavones and some acylated di-C-glycosyl flavones are reported in wheat for the first time. The frequent occurrence of numerous isomers is a remarkable feature of wheat germ flavones. Both UV and mass spectra are needed to maximize the structure information obtained for data interpretation. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Ping Geng
- Food Composition and Methods Development Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD, 20705, USA
| | - Jianghao Sun
- Food Composition and Methods Development Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD, 20705, USA
| | - Mengliang Zhang
- Food Composition and Methods Development Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD, 20705, USA
| | - Xingnuo Li
- Food Composition and Methods Development Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD, 20705, USA
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China
| | - James M Harnly
- Food Composition and Methods Development Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD, 20705, USA
| | - Pei Chen
- Food Composition and Methods Development Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD, 20705, USA.
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41
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Yang WZ, Wu WY, Yang M, Guo DA. Elucidation of the fragmentation pathways of a complex 3,7-O-glycosyl flavonol by CID, HCD, and PQD on an LTQ-Orbitrap Velos Pro hybrid mass spectrometer. Chin J Nat Med 2016; 13:867-872. [PMID: 26614462 DOI: 10.1016/s1875-5364(15)30091-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Indexed: 11/29/2022]
Abstract
The present study was designed to systematically investigate the ESI-MS(n) behavior of a complex 3, 7-O-glycosyl flavonol, kaempferol 3-O-α-L-[2,3-di-O-β-D-(6-E-p-coumaroyl)glucopyranosyl]-rhamnopyranosyl-7-O-α-L-rhamnopyranoside (KO) isolated from Epimedium wushanense, and to address the elimination priority among different glycosylation sites and different sugars/substituents. The direct-infusion ESI-MS(n) experiment of KO was performed on a hybrid LTQ-Orbitrap Velos Pro mass spectrometer in both negative and positive ion modes by three different fragmentation mechanisms (CID, HCD, and PQD). The CID, HCD, and PQD analyses of KO exhibited remarkable discrimination in respect of the scan range, richness, and distribution of product ions through the entire spectra. KO experienced different fragmentation pathways between two ionization modes: the negative mode CID of KO eliminated the glycosyl portions (priority: 7-sugar > 3-substituent and terminal substituents > inner sugar) and produced aglycone product ions at m/z 284.03/285.04; however, abundant sodium-adduct B(3)2 together with subsequent (i,j)X(3)0 cleavages were found characteristic for the positive mode CID-MS(n). The fragmentation pathways by CID for KO were proposed by analyzing the high accuracy ESI-MS(n) data. Complementary structural information of KO regarding the aglycone and glycosyl portions was obtained by analyzing the ESI-MS(n) data in both ionization modes. In conclusion, the LTQ-Orbitrap method facilitates highly reliable qualitative analysis of bioactive flavonoids with three alternative fragmentation modes.
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Affiliation(s)
- Wen-Zhi Yang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Wan-Ying Wu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Min Yang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - De-An Guo
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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42
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Liu M, Dong J, Lin Z, Niu Y, Zhang X, Jiang H, Guo N, Li W, Wang H, Chen S. Rapid screening of transferrin-binders in the flowers of Bauhinia blakeana Dunn by on-line high-performance liquid chromatography–diode-array detector–electrospray ionization–ion-trap–time-of-flight–mass spectrometry–transferrin–fluorescence detection system. J Chromatogr A 2016; 1450:17-28. [DOI: 10.1016/j.chroma.2016.04.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 04/07/2016] [Accepted: 04/14/2016] [Indexed: 10/21/2022]
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43
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Quantification of flavonol glycosides in Camellia sinensis by MRM mode of UPLC-QQQ-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1017-1018:10-17. [DOI: 10.1016/j.jchromb.2016.01.064] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 01/27/2016] [Accepted: 01/30/2016] [Indexed: 11/22/2022]
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44
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Yang W, Si W, Zhang J, Yang M, Pan H, Wu J, Qiu S, Yao C, Hou J, Wu W, Guo D. Selective and comprehensive characterization of the quinochalcone C-glycoside homologs in Carthamus tinctorius L. by offline comprehensive two-dimensional liquid chromatography/LTQ-Orbitrap MS coupled with versatile data mining strategies. RSC Adv 2016. [DOI: 10.1039/c5ra23744k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
An offline 2D LC/LTQ-Orbitrap MS approach and versatile data mining techniques were developed to characterize new QCGs from C. tinctorius.
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45
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Yao C, Yang W, Si W, Pan H, Qiu S, Wu J, Shi X, Feng R, Wu W, Guo D. A strategy for establishment of practical identification methods for Chinese patent medicine from systematic multi-component characterization to selective ion monitoring of chemical markers: Shuxiong tablet as a case study. RSC Adv 2016. [DOI: 10.1039/c6ra10883k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
A SMC-SIM strategy for establishment of practical identification methods for Chinese patent medicine.
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46
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Qiao X, Lin XH, Ji S, Zhang ZX, Bo T, Guo DA, Ye M. Global Profiling and Novel Structure Discovery Using Multiple Neutral Loss/Precursor Ion Scanning Combined with Substructure Recognition and Statistical Analysis (MNPSS): Characterization of Terpene-Conjugated Curcuminoids in Curcuma longa as a Case Study. Anal Chem 2015; 88:703-10. [PMID: 26606385 DOI: 10.1021/acs.analchem.5b02729] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
To fully understand the chemical diversity of an herbal medicine is challenging. In this work, we describe a new approach to globally profile and discover novel compounds from an herbal extract using multiple neutral loss/precursor ion scanning combined with substructure recognition and statistical analysis. Turmeric (the rhizomes of Curcuma longa L.) was used as an example. This approach consists of three steps: (i) multiple neutral loss/precursor ion scanning to obtain substructure information; (ii) targeted identification of new compounds by extracted ion current and substructure recognition; and (iii) untargeted identification using total ion current and multivariate statistical analysis to discover novel structures. Using this approach, 846 terpecurcumins (terpene-conjugated curcuminoids) were discovered from turmeric, including a number of potentially novel compounds. Furthermore, two unprecedented compounds (terpecurcumins X and Y) were purified, and their structures were identified by NMR spectroscopy. This study extended the application of mass spectrometry to global profiling of natural products in herbal medicines and could help chemists to rapidly discover novel compounds from a complex matrix.
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Affiliation(s)
- Xue Qiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , 38 Xueyuan Road, Beijing 100191, China
| | - Xiong-hao Lin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , 38 Xueyuan Road, Beijing 100191, China
| | - Shuai Ji
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , 38 Xueyuan Road, Beijing 100191, China
| | | | - Tao Bo
- Agilent Technologies, 3 Wangjing North Road, Beijing 100102, China
| | - De-an Guo
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , 38 Xueyuan Road, Beijing 100191, China.,State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, China
| | - Min Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , 38 Xueyuan Road, Beijing 100191, China.,State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, China
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47
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Zhang X, Lin Z, Fang J, Liu M, Niu Y, Chen S, Wang H. An on-line high-performance liquid chromatography–diode-array detector–electrospray ionization–ion-trap–time-of-flight–mass spectrometry–total antioxidant capacity detection system applying two antioxidant methods for activity evaluation of the edible flowers from Prunus mume. J Chromatogr A 2015; 1414:88-102. [DOI: 10.1016/j.chroma.2015.08.033] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 08/13/2015] [Accepted: 08/14/2015] [Indexed: 12/29/2022]
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48
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Si W, Yang W, Guo D, Wu J, Zhang J, Qiu S, Yao C, Cui Y, Wu W. Selective ion monitoring of quinochalcone C-glycoside markers for the simultaneous identification of Carthamus tinctorius L. in eleven Chinese patent medicines by UHPLC/QTOF MS. J Pharm Biomed Anal 2015; 117:510-21. [PMID: 26476296 DOI: 10.1016/j.jpba.2015.09.025] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/10/2015] [Accepted: 09/21/2015] [Indexed: 10/23/2022]
Abstract
Current China Pharmacopoeia standards for the Chinese patent medicines (CPMs) that contain one or several the same drug(s) employ case-dependent TLC or HPLC approaches to achieve qualitative identification. A qualitative "monomethod-heterotrait matrix" (MHM) strategy is thus proposed, by selective monitoring of multi-biomarkers, to achieve the identification of different CPMs. Carthamus tinctorius L. (safflower) is a reputable gynecological herbal medicine containing characteristic quinochalcone C-glycosides (QCGs) as the major bioactive components. Qualitative identification of safflower in diverse CPMs by selective monitoring of QCG markers was performed by use of the MHM strategy. Initially, 27 QCG analogs (involving 16 potentially new ones) were selectively characterized by product ion filtering (m/z 119.05) and integrated analysis of the negative mode MS(E) and Fast DDA data obtained on a UHPLC/QTOF mass spectrometer. Subsequently, by fingerprint analysis of 20 batches of safflower samples followed by a thermostable test, six QCGs (hydroxysafflor yellow A and its two isomers, anhydrosafflor yellow B, safflomin C, and isosafflomin C) were selected as the biomarkers for safflower. Then, a highly specific selective ion monitoring (SIM) method by recording centroided data was developed and applied to selectively profile six QCG biomarkers from 28 batches of CPM samples collected from versatile vendors. By reference to a standard SIM spectrum established using a home-made safflower reference extract, simultaneous identification of safflower in eleven different CPMs was accomplished with the unified sample preparation and a single UHPLC/QTOF-SIM method. The qualitative MHM strategy represents the novel methodology that facilitates the quality control of CPMs more efficiently.
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Affiliation(s)
- Wei Si
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China; Shanghai University of Traditional Chinese Medicine, Cailun Road 1200, Shanghai 201203, China
| | - Wenzhi Yang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Dean Guo
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Jia Wu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Jingxian Zhang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Shi Qiu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Changliang Yao
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Yajun Cui
- Shanghai University of Traditional Chinese Medicine, Cailun Road 1200, Shanghai 201203, China.
| | - Wanying Wu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China.
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49
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An integrated strategy for the systematic characterization and discovery of new indole alkaloids from Uncaria rhynchophylla by UHPLC/DAD/LTQ-Orbitrap-MS. Anal Bioanal Chem 2015; 407:6057-70. [PMID: 26055881 DOI: 10.1007/s00216-015-8777-0] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 05/06/2015] [Accepted: 05/08/2015] [Indexed: 10/23/2022]
Abstract
The exploration of new chemical entities from herbal medicines may provide candidates for the in silico screening of drug leads. However, this significant work is hindered by the presence of multiple classes of plant metabolites and many re-discovered structures. This study presents an integrated strategy that uses ultrahigh-performance liquid chromatography/linear ion-trap quadrupole/Orbitrap mass spectrometry (UHPLC/LTQ-Orbitrap-MS) coupled with in-house library data for the systematic characterization and discovery of new potentially bioactive molecules. Exploration of the indole alkaloids from Uncaria rhynchophylla (UR) is presented as a model study. Initially, the primary characterization of alkaloids was achieved using mass defect filtering and neutral loss filtering. Subsequently, phytochemical isolation obtained 14 alkaloid compounds as reference standards, including a new one identified as 16,17-dihydro-O-demethylhirsuteine by NMR analyses. The direct-infusion fragmentation behaviors of these isolated alkaloids were studied to provide diagnostic structural information facilitating the rapid differentiation and characterization of four different alkaloid subtypes. Ultimately, after combining the experimental results with a survey of an in-house library containing 129 alkaloids isolated from the Uncaria genus, a total of 92 alkaloids (60 free alkaloids and 32 alkaloid O-glycosides) were identified or tentatively characterized, 56 of which are potential new alkaloids for the Uncaria genus. Hydroxylation on ring A, broad variations in the C-15 side chain, new N-oxides, and numerous O-glycosides, represent the novel features of the newly discovered indole alkaloid structures. These results greatly expand our knowledge of UR chemistry and are useful for the computational screening of potentially bioactive molecules from indole alkaloids. Graphical Abstract A four-step integrated strategy for the systematic characterization and efficient discovery of new indole alkaloids from Uncaria rhynchophylla.
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Engström MT, Pälijärvi M, Salminen JP. Rapid Fingerprint Analysis of Plant Extracts for Ellagitannins, Gallic Acid, and Quinic Acid Derivatives and Quercetin-, Kaempferol- and Myricetin-Based Flavonol Glycosides by UPLC-QqQ-MS/MS. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:4068-79. [PMID: 25853372 DOI: 10.1021/acs.jafc.5b00595] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
This paper describes the development of a rapid method with ultraperformance liquid chromatography-triple-quadrupole mass spectrometry that can specifically measure group-specific fingerprints from plant extracts for the following polyphenol groups: (1) ellagitannins, (2) gallic acid derivatives, (3) quinic acid derivatives, (4) quercetin-based flavonol glycosides, (5) kaempferol-based flavonol glycosides, and (6) myricetin-based flavonol glycosides. In addition, the method records simultaneously diode array and full scan mass spectrometry data that can be used to later characterize and quantify the main individual polyphenols if necessary. All of this is achieved within the 10 min period of analysis, which makes the presented method a significant addition to the chemistry tools currently available for the rapid analysis of complex polyphenol mixtures from plant extracts.
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Affiliation(s)
- Marica T Engström
- Laboratory of Organic Chemistry and Chemical Biology, Department of Chemistry, University of Turku, FI-20014 Turku, Finland
| | - Maija Pälijärvi
- Laboratory of Organic Chemistry and Chemical Biology, Department of Chemistry, University of Turku, FI-20014 Turku, Finland
| | - Juha-Pekka Salminen
- Laboratory of Organic Chemistry and Chemical Biology, Department of Chemistry, University of Turku, FI-20014 Turku, Finland
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