1
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Park J, Ngo TH, Paudel SB, Kil YS, Ryoo GH, Jin CH, Choi HI, Jung CH, Na M, Nam JW, Han AR. Angular dihydropyranocoumarins from the flowers of Peucedanum japonicum and their aldo-keto reductase inhibitory activities. PHYTOCHEMISTRY 2024; 219:113974. [PMID: 38211847 DOI: 10.1016/j.phytochem.2024.113974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 01/04/2024] [Accepted: 01/06/2024] [Indexed: 01/13/2024]
Abstract
Twenty-one angular dihydropyranocoumarins and a linear furanocoumarin, including four previously undescribed compounds (1-4), were isolated from the flowers of Peucedanum japonicum (Umbelliferae). The structures of 1-4, along with their absolute stereochemistry, were determined to be (3'S,4'S)-3'-O-propanoyl-4'-O-(3‴-methyl-2‴-butenoyl)khellactone (1), (3'S,4'S)-3'-O-propanoyl-4'-O-(2‴-methyl-2‴Z-butenoyl)khellactone (2), (3'S,4'S)-3'-O-propanoyl-4'-O-(2‴-methylbutanoyl)khellactone (3), and (3'S,4'S)-3'-O-(2″-methylpropanoyl)-4'-O-(3‴-methyl-2‴-butenoyl)khellactone (4) using one- and two-dimensional nuclear magnetic resonance, high-resolution electrospray ionization mass spectroscopy, and electronic circular dichroism spectroscopy. In addition, the absolute configuration of the three angular dihydropyranocoumarins (5-7) was determined for the first time in this study. Among the previously reported compounds isolated in this study, 8 and 9 were isolated for the first time from the genus Peucedanum, whereas 10 and 11 were previously unreported and had not been isolated from P. japonicum to date. Furthermore, all isolated compounds were evaluated for their aldo-keto reductase 1C1 inhibitory activities on A549 human non-small-cell lung cancer cells. Compounds 10 and 12 exhibited substantial AKR1C1 inhibitory activities with IC50 values of 35.8 ± 0.9 and 44.2 ± 1.5 μM, respectively.
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Affiliation(s)
- Jisu Park
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do, 56212, Republic of Korea; College of Pharmacy, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Trung Huy Ngo
- College of Pharmacy, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do, 38541, Republic of Korea
| | - Sunil Babu Paudel
- College of Pharmacy, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do, 38541, Republic of Korea
| | - Yun-Seo Kil
- College of Pharmacy, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do, 38541, Republic of Korea
| | - Ga-Hee Ryoo
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do, 56212, Republic of Korea
| | - Chang Hyun Jin
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do, 56212, Republic of Korea
| | - Hong-Il Choi
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do, 56212, Republic of Korea
| | - Chan-Hun Jung
- Jeonju AgroBio-Materials Institute, Jeonju-si, Jeollabuk-do, 54810, Republic of Korea
| | - MinKyun Na
- College of Pharmacy, Chungnam National University, Daejeon, 34134, Republic of Korea.
| | - Joo-Won Nam
- College of Pharmacy, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do, 38541, Republic of Korea.
| | - Ah-Reum Han
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do, 56212, Republic of Korea.
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Lin KQ, Liu HF, Chen C, Li JY, Pan WD, Sun C, Lou HY. Structurally Diverse Coumarins from Peucedanum praeruptorum and their Anti-Inflammatory Activities via NF-κB Signaling Pathway. Chem Biodivers 2024; 21:e202400184. [PMID: 38372676 DOI: 10.1002/cbdv.202400184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/20/2024]
Abstract
The phytochemical study of Peucedanum praeruptorum led to the isolation of twenty-five coumarins (1-25). Of which, (±) praeruptol A (±1), one pair of previous undescribed seco-coumarin enantiomers were obtained. Their structures were established according to HR-ESI-MS, NMR, X-ray single crystal diffraction analysis, as well as ECD calculation. All compounds were tested for anti-inflammatory activity in the RAW264.7 macrophage model, and eight compounds (7-10, and 13-16) exhibited significant inhibitory effects with IC50 values ranging from 9.48 to 34.66 μM. Among them, compound 7 showed the strongest inhibitory effect, which significantly suppressed the production of IL-6, IL-1β, and TNF-α, as well as iNOS and COX-2 in a concentration-dependent manner. Further investigated results showed that compound 7 exerted an anti-inflammatory effect via the NF-κB signaling pathway.
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Affiliation(s)
- Kai-Qin Lin
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China
| | - Han-Fei Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China
- Natural Products Research Centre of Guizhou Province, Guizhou Medical University, Guiyang, 550014, China
| | - Chao Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China
- Natural Products Research Centre of Guizhou Province, Guizhou Medical University, Guiyang, 550014, China
| | - Jin-Yu Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China
- Natural Products Research Centre of Guizhou Province, Guizhou Medical University, Guiyang, 550014, China
| | - Wei-Dong Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China
| | - Chao Sun
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China
- Natural Products Research Centre of Guizhou Province, Guizhou Medical University, Guiyang, 550014, China
| | - Hua-Yong Lou
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China
- Natural Products Research Centre of Guizhou Province, Guizhou Medical University, Guiyang, 550014, China
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Roman-Hubers AT, Cordova AC, Barrow MP, Rusyn I. Analytical chemistry solutions to hazard evaluation of petroleum refining products. Regul Toxicol Pharmacol 2023; 137:105310. [PMID: 36473579 PMCID: PMC9771979 DOI: 10.1016/j.yrtph.2022.105310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 11/26/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
Products of petroleum refining are substances that are both complex and variable. These substances are produced and distributed in high volumes; therefore, they are heavily scrutinized in terms of their potential hazards and risks. Because of inherent compositional complexity and variability, unique challenges exist in terms of their registration and evaluation. Continued dialogue between the industry and the decision-makers has revolved around the most appropriate approach to fill data gaps and ensure safe use of these substances. One of the challenging topics has been the extent of chemical compositional characterization of products of petroleum refining that may be necessary for substance identification and hazard evaluation. There are several novel analytical methods that can be used for comprehensive characterization of petroleum substances and identification of most abundant constituents. However, translation of the advances in analytical chemistry to regulatory decision-making has not been as evident. Therefore, the goal of this review is to bridge the divide between the science of chemical characterization of petroleum and the needs and expectations of the decision-makers. Collectively, mutual appreciation of the regulatory guidance and the realities of what information these new methods can deliver should facilitate the path forward in ensuring safety of the products of petroleum refining.
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Affiliation(s)
- Alina T Roman-Hubers
- Interdisciplinary Faculty of Toxicology and Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, USA
| | - Alexandra C Cordova
- Interdisciplinary Faculty of Toxicology and Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, USA
| | - Mark P Barrow
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - Ivan Rusyn
- Interdisciplinary Faculty of Toxicology and Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, USA.
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Park J, Paudel SB, Jin CH, Lee G, Choi HI, Ryoo GH, Kil YS, Nam JW, Jung CH, Kim BR, Na MK, Han AR. Comparative Analysis of Coumarin Profiles in Different Parts of Peucedanum japonicum and Their Aldo-Keto Reductase Inhibitory Activities. Molecules 2022; 27:7391. [PMID: 36364218 PMCID: PMC9657185 DOI: 10.3390/molecules27217391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/27/2022] [Accepted: 10/27/2022] [Indexed: 03/13/2024] Open
Abstract
Peucedanum japonicum (Umbelliferae) is widely distributed throughout Southeast Asian countries. The root of this plant is used in traditional medicine to treat colds and pain, whereas the young leaves are considered an edible vegetable. In this study, the differences in coumarin profiles for different parts of P. japonicum including the flowers, roots, leaves, and stems were compared using ultra-performance liquid chromatography time-of-flight mass spectrometry. Twenty-eight compounds were tentatively identified, including three compounds found in the genus Peucedanum for the first time. Principal component analysis using the data set of the measured mass values and intensities of the compounds exhibited distinct clustering of the flower, leaf, stem, and root samples. In addition, their anticancer activities were screened using an Aldo-keto reductase (AKR)1C1 assay on A549 human non-small-cell lung cancer cells and the flower extract inhibited AKR1C1 activity. Based on these results, seven compounds were selected as potential markers to distinguish between the flower part versus the root, stem, and leaf parts using an orthogonal partial least-squares discriminant analysis. This study is the first to provide information on the comparison of coumarin profiles from different parts of P. japonicum as well as their AKR1C1 inhibitory activities. Taken together, the flowers of P. japonicum offer a new use related to the efficacy of overcoming anticancer drug resistance, and may be a promising source for the isolation of active lead compounds.
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Affiliation(s)
- Jisu Park
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeollabuk-do, Jeongeup-si 56212, Korea
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
| | - Sunil Babu Paudel
- College of Pharmacy, Yeungnam University, Gyeongsangbuk-do, Gyeongsan-si 38541, Korea
| | - Chang Hyun Jin
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeollabuk-do, Jeongeup-si 56212, Korea
| | - Gileung Lee
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeollabuk-do, Jeongeup-si 56212, Korea
| | - Hong-Il Choi
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeollabuk-do, Jeongeup-si 56212, Korea
| | - Ga-Hee Ryoo
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeollabuk-do, Jeongeup-si 56212, Korea
| | - Yun-Seo Kil
- College of Pharmacy, Yeungnam University, Gyeongsangbuk-do, Gyeongsan-si 38541, Korea
| | - Joo-Won Nam
- College of Pharmacy, Yeungnam University, Gyeongsangbuk-do, Gyeongsan-si 38541, Korea
| | - Chan-Hun Jung
- Jeonju AgroBio-Materials Institute, Jeollabuk-do, Jeonju-si 54810, Korea
| | - Bo-Ram Kim
- Natural Product Research Division, Honam National Institute of Biological Resources, Jeollanam-do, Mokpo-si 58762, Korea
| | - Min Kyun Na
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
| | - Ah-Reum Han
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeollabuk-do, Jeongeup-si 56212, Korea
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Wang L, Yu X, Xu W, Zhang J, Lin H, Zhao Y. Complete chloroplast genome sequencing support Angelica decursiva is an independent species from Peucedanum praeruptorum. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:2503-2515. [PMID: 34924707 PMCID: PMC8639966 DOI: 10.1007/s12298-021-01097-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/31/2021] [Accepted: 11/01/2021] [Indexed: 05/11/2023]
Abstract
UNLABELLED Peucedani Radix is the dry root of Peucedanum praeruptorum of the umbelliferous family, but the dry root of Angelica decursiva was also the source of Peucedani Radix in the past. As one of the most popular traditional Chinese medicinal herbs, the certified source of Peucedani Radix is still disputed. To better understand the relationship between A. decursiva and P. praeruptorum, we sequenced their chloroplast (cp) genomes. The gene structure, codon usage bias, repeat, simple sequence repeat (SSR), as well as their borders of inverted repeat (IR) regions of the two cp genomes are analyzed to identify potential genetic markers. Great variation is exhibited in the repeat sequences of IR, large single copy regions and the SSRs of the two cp genomes, which can be used as molecular markers to distinguish them. The phylogenetic analysis also indicates that they belong to two different genera in Apiaceae family: A. decursiva is an Angelica plant and P. praeruptorum is a Peucedanum plant. Our observations suggest that the two species are somewhere different in gene features, which contributes to support A. decursiva as an independent species from P. praeruptorum. The results also provide new evidence that A. decursiva should not be regarded as the certified source of Peucedani Radix in taxonomy. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-021-01097-w.
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Affiliation(s)
- Long Wang
- Department of Resources Science of Traditional Chinese Medicines and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009 Jiangsu China
| | - Xiangxu Yu
- Department of Resources Science of Traditional Chinese Medicines and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009 Jiangsu China
| | - Wenbo Xu
- Department of Resources Science of Traditional Chinese Medicines and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009 Jiangsu China
| | - Junqing Zhang
- Department of Resources Science of Traditional Chinese Medicines and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009 Jiangsu China
| | - Hanfeng Lin
- Department of Resources Science of Traditional Chinese Medicines and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009 Jiangsu China
| | - Yucheng Zhao
- Department of Resources Science of Traditional Chinese Medicines and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009 Jiangsu China
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6
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Rapid securing of reference substances from Peucedanum japonicum Thunberg by recycling preparative high-performance liquid chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1133:121835. [DOI: 10.1016/j.jchromb.2019.121835] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 10/14/2019] [Accepted: 10/16/2019] [Indexed: 12/12/2022]
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Khellactone Derivatives and Other Phenolics of Phlojodicarpus sibiricus (Apiaceae): HPLC-DAD-ESI-QQQ-MS/MS and HPLC-UV Profile, and Antiobesity Potential of Dihydrosamidin. Molecules 2019; 24:molecules24122286. [PMID: 31248222 PMCID: PMC6630902 DOI: 10.3390/molecules24122286] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 06/13/2019] [Accepted: 06/18/2019] [Indexed: 01/09/2023] Open
Abstract
With obesity, the consumption of phenolic-enriched food additives as a part of traditional nutrition avoids the negative implications of eating high-calorie products. This study investigated the new herbal food additive, Phlojodicarpus sibiricus roots and herb, ubiquitously used in Siberia as a spice. Chromatographic techniques such as HPLC-DAD-ESI-QQQ-MS/MS and microcolumn HPLC-UV were the basic instruments for component profiling and quantification, and antiobesity potential was investigated using a differentiated 3T3-L1 adipocytes assay. We found that the roots and herb of P. sibiricus were high-coumarin-containing additives inhibiting triacylglycerol accumulation in 3T3-L1 preadipocytes. Forty-one phenolics were detected in P. sibiricus extracts, and 35 were coumarins, including 27 khellactone derivatives present as esters and glucosides. Total coumarin content varied from 36.16 mg/g of herb to 98.24 mg/g of roots, and from 0.32 mg/mL to 52.91 mg/mL in P. sibiricus preparations. Moreover, Siberian populations of P. sibiricus were characterised by a different HPLC-based coumarin profile. The most pronounced inhibiting effect on triacylglycerol accumulation in 3T3-L1 preadipocytes was shown for dihydrosamidin (khellactone 3′-O-isovaleroyl-4′-O-acetyl ester), which was more active than other khellactone esters and glucosides. The results demonstrated that if used as a food additive Phlojodicarpus sibiricus could be a source of bioactive coumarins of the khellactone group with high antiobesity potential.
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Zhao Y, Wang N, Sui Z, Huang C, Zeng Z, Kong L. The Molecular and Structural Basis of O-methylation Reaction in Coumarin Biosynthesis in Peucedanum praeruptorum Dunn. Int J Mol Sci 2019; 20:ijms20071533. [PMID: 30934718 PMCID: PMC6480711 DOI: 10.3390/ijms20071533] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 03/22/2019] [Accepted: 03/26/2019] [Indexed: 01/05/2023] Open
Abstract
Methoxylated coumarins represent a large proportion of officinal value coumarins while only one enzyme specific to bergaptol O-methylation (BMT) has been identified to date. The multiple types of methoxylated coumarins indicate that at least one unknown enzyme participates in the O-methylation of other hydroxylated coumarins and remains to be identified. Combined transcriptome and metabonomics analysis revealed that an enzyme similar to caffeic acid O-methyltransferase (COMT-S, S is short for similar) was involved in catalyzing all the hydroxylated coumarins in Peucedanum praeruptorum. However, the precise molecular mechanism of its substrate heterozygosis remains unsolved. Pursuing this question, we determined the crystal structure of COMT-S to clarify its substrate preference. The result revealed that Asn132, Asp271, and Asn325 govern the substrate heterozygosis of COMT-S. A single mutation, such as N132A, determines the catalytic selectivity of hydroxyl groups in esculetin and also causes production differences in bergapten. Evolution-based analysis indicated that BMT was only recently derived as a paralogue of caffeic acid O-methyltransferase (COMT) via gene duplication, occurring before the Apiaceae family divergence between 37 and 100 mya. The present study identified the previously unknown O-methylation steps in coumarin biosynthesis. The crystallographic and mutational studies provided a deeper understanding of the substrate preference, which can be used for producing specific O-methylation coumarins. Moreover, the evolutionary relationship between BMT and COMT-S was clarified to facilitate understanding of evolutionary events in the Apiaceae family.
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Affiliation(s)
- Yucheng Zhao
- Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Nana Wang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China.
| | - Ziwei Sui
- Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Chuanlong Huang
- Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Zhixiong Zeng
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China.
| | - Lingyi Kong
- Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
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Hong MJ, Kim J. Determination of the Absolute Configuration of Khellactone Esters from Peucedanum japonicum Roots. JOURNAL OF NATURAL PRODUCTS 2017; 80:1354-1360. [PMID: 28402633 DOI: 10.1021/acs.jnatprod.6b00947] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Sixteen new angular dihydropyranocoumarins (1-16) and 24 known compounds were isolated from the roots of Peucedanum japonicum Thunb. The absolute configuration of diacylkhellactone was established by partial hydrolysis, the Mosher method, and X-ray crystallography. In addition, ECD spectroscopy was used to assign the absolute configurations of several of the angular dihydropyranocoumarins. Enantiomers were detected by RP-HPLC using MTPA esters while acyl migration of the substituents was observed in cis-monoacylkhellactones.
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Affiliation(s)
- Min Jee Hong
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jinwoong Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
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On-line comprehensive two-dimensional normal-phase liquid chromatography × reversed-phase liquid chromatography for preparative isolation of Peucedanum praeruptorum. J Chromatogr A 2015; 1387:60-8. [PMID: 25704769 DOI: 10.1016/j.chroma.2015.02.003] [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: 09/23/2014] [Revised: 01/30/2015] [Accepted: 02/02/2015] [Indexed: 11/20/2022]
Abstract
A new on-line comprehensive preparative two-dimensional normal-phase liquid chromatography × reversed-phase liquid chromatography (2D NPLC × RPLC) system was developed for the separation of complicated natural products. It was based on the use of a silica gel packed medium-pressure column as the first dimension and an ODS preparative HPLC column as the second dimension. The two dimensions were connected with normal-phase (NP) and reversed-phase (RP) enrichment units, involving a newly developed airflow assisted adsorption (AAA) technique. The instrument operation and the performance of this NPLC × RPLC separation method were illustrated by gram-scale isolation of ethanol extract from the roots of Peucedanum praeruptorum. In total, 19 compounds with high purity were obtained via automated multi-step preparative separation in a short period of time using this system, and their structures were comprehensively characterized by ESI-MS, (1)H NMR, and (13)C NMR. Including two new compounds, five isomers in two groups with identical HPLC and TLC retention values were also obtained and identified by 1D NMR and 2D NMR. This is the first report of an NPLC × RPLC system successfully applied in an on-line preparative process. This system not only solved the interfacing problem of mobile-phase immiscibility caused by NP and RP separation, it also exhibited apparent advantages in separation efficiency and sample treatment capacity compared with conventional methods.
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11
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Liu Q, Xiao J, Yu J, Xie Y, Chen X, Yang H. Improved enantioseparation via the twin-column based recycling high performance liquid chromatography. J Chromatogr A 2014; 1363:236-41. [DOI: 10.1016/j.chroma.2014.07.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 07/14/2014] [Accepted: 07/15/2014] [Indexed: 01/06/2023]
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12
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Huang H, Liu M, Chen P. RECENT ADVANCES IN ULTRA-HIGH PERFORMANCE LIQUID CHROMATOGRAPHY FOR THE ANALYSIS OF TRADITIONAL CHINESE MEDICINE. ANAL LETT 2014; 47:1835-1851. [PMID: 25045170 DOI: 10.1080/00032719.2014.888727] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Traditional Chinese medicine has been widely used for the prevention and treatment of various diseases for thousands of years in China. Ultra-high performance liquid chromatography (UHPLC) is a relatively new technique offering new possibilities. This paper reviews recent developments in UHPLC in the separation and identification, fingerprinting, quantification, and metabolism of traditional Chinese medicine. Recently, the combination of UHPLC with MS has improved the efficiency of the analysis of these materials.
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Affiliation(s)
- Huilian Huang
- Key Laboratory of Modern Preparation of TCM, Jiangxi University of Traditional Chinese Medicine, Ministry of Education, Nanchang 330004, China ; Food Composition and Methods Development Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD, US
| | - Min Liu
- Key Laboratory of Modern Preparation of TCM, Jiangxi University of Traditional Chinese Medicine, Ministry of Education, Nanchang 330004, China
| | - Pei Chen
- Food Composition and Methods Development Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD, US
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13
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Lee JW, Lee C, Jin Q, Yeon ET, Lee D, Kim SY, Han SB, Hong JT, Lee MK, Hwang BY. Pyranocoumarins from Glehnia littoralis inhibit the LPS-induced NO production in macrophage RAW 264.7 cells. Bioorg Med Chem Lett 2014; 24:2717-9. [DOI: 10.1016/j.bmcl.2014.04.046] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 03/16/2014] [Accepted: 04/11/2014] [Indexed: 01/04/2023]
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