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Li P, Zhu X, Xiao M, Su Y, Yu S, Tang J, Xue H, Cai X. OUP accepted manuscript. J Chromatogr Sci 2022:6553929. [PMID: 35325046 DOI: 10.1093/chromsci/bmac020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Indexed: 11/14/2022]
Affiliation(s)
- Pengchegn Li
- Key Laboratory of Particle and Radiation Imaging, Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, P.R. China
| | - Xiaohan Zhu
- Key Laboratory of Particle and Radiation Imaging, Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, P.R. China
| | - Mi Xiao
- China Pharmaceutical Preparation Section, Huazhong University of Science and Technology Union Jiangbei Hospital/Wuhan Caidian People's Hospital, Wuhan 430100, P.R. China
| | - Yanqi Su
- China Pharmaceutical Preparation Section, Huazhong University of Science and Technology Union Jiangbei Hospital/Wuhan Caidian People's Hospital, Wuhan 430100, P.R. China
| | - Shanshan Yu
- Personnel Section, Wuhan University Zhongnan Hospital, Wuhan 430065, P.R. China
| | - Jintian Tang
- Key Laboratory of Particle and Radiation Imaging, Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, P.R. China
| | - Hongkun Xue
- Key Laboratory of Particle and Radiation Imaging, Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, P.R. China
| | - Xu Cai
- Key Laboratory of Particle and Radiation Imaging, Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, P.R. China
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Fan Q, Huang F, Zhou L, He W, Jiang X, Na Z, Gongpan P, Hu H, Song Q. Development of a strategy for a quick process for separation of volatile compounds in counter-current chromatography: purification of cinnamaldehyde from Cinnamomum cassia by high performance counter-current chromatography. Prep Biochem Biotechnol 2021; 51:1056-1059. [PMID: 33775215 DOI: 10.1080/10826068.2021.1894444] [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] [Indexed: 10/21/2022]
Abstract
It is a challenge for many researchers to separate volatile compounds. In this study, we introduce a rapid and efficient method of separating target compound from the twigs of Cinnamomum cassia by high performance counter-current chromatography. Under the bioassay guidance, the total extract exhibited a potential activity against NO production in RAW 264.7 macrophages and the total extract was further separated by high performance counter-current chromatography. Cinnamaldehyde (1) was enriched by counter-current chromatography (CCC) with reversed-phase mode using n-hexane-ethyl acetate-methanol-water (1:1:1:1,v/v/v/v) as the solvent system. Further identification was achieved by high performance liquid chromatography (HPLC).
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Affiliation(s)
- Qingfei Fan
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, P. R. China.,University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Fengmei Huang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, P. R. China.,University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Lan Zhou
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, P. R. China.,University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Wenqian He
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, P. R. China.,University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Xian Jiang
- College of Biology and Chemistry, Puer University, Puer, P. R. China
| | - Zhi Na
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, P. R. China
| | - Pianchou Gongpan
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, P. R. China
| | - Huabin Hu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, P. R. China
| | - Qishi Song
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, P. R. China
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Kim SB, Bisson J, Friesen JB, Pauli GF, Simmler C. Selective Chlorophyll Removal Method to "Degreen" Botanical Extracts. JOURNAL OF NATURAL PRODUCTS 2020; 83:1846-1858. [PMID: 32426979 PMCID: PMC7398693 DOI: 10.1021/acs.jnatprod.0c00005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Chlorophylls are present in all extracts from the aerial parts of green plant materials. Chlorophylls may act as in vitro bioassay nuisance compounds, possibly preventing the reproducibility and accurate measurement of readouts due to their UV/vis absorbance, fluorescence properties, and tendency to precipitate in aqueous media. Despite the diversity of methods used traditionally to remove chlorophylls, details about their mode of operation, specificity, and reproducibility are scarce. Herein, we report a selective and efficient 45 min liquid-liquid/countercurrent chlorophyll cleanup method using Centrifugal Partition Chromatography (CPC) with a solvent system composed of hexanes-EtOAc-MeOH-water (5:5:5:5, v/v) in elution-extrusion mode. The broader utility of the method was assessed with four different extracts prepared from three well-characterized plant materials: Epimedium sagittatum (leaves), Senna alexandrina (leaves), and Trifolium pratense (aerial parts). The reproducibility of the method, the selectivity of the chlorophyll removal, as well as the preservation of the phytochemical integrity of the resulting chlorophyll-free ("degreened") extracts were evaluated using HPTLC, UHPLC-UV, 1H NMR spectroscopy, and LC-MS as orthogonal phytochemical methods. The cleanup process adequately preserves the metabolomic diversity as well as the integrity of the original extracts. This method was found to be sufficiently rapid for the "degreening" of botanical extracts in higher-throughput sample preparation for further biological screening.
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Affiliation(s)
- Seon Beom Kim
- Center for Natural Product Technologies, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) and Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, United States
| | - Jonathan Bisson
- Center for Natural Product Technologies, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) and Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, United States
| | - J. Brent Friesen
- Center for Natural Product Technologies, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) and Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, United States
- Physical Sciences Department, Rosary College of Arts and Sciences, Dominican University, River Forest, IL 60305, United States
| | - Guido F. Pauli
- Center for Natural Product Technologies, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) and Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, United States
| | - Charlotte Simmler
- Center for Natural Product Technologies, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) and Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, United States
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