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Schmitt M, Magid AA, Nuzillard JM, Hubert J, Etique N, Duca L, Voutquenne-Nazabadioko L. Investigation of Antioxidant and Elastase Inhibitory Activities of Geum urbanum Aerial Parts, Chemical Characterization of Extracts Guided by Chemical and Biological Assays. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20915307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
This study presents the bioguided chemical investigation of the 80% aqueous methanol extract of Geum urbanum aerial parts. Liquid–liquid partitioning of this extract in solvents of increasing polarity combined with biological screening showed that the ethyl acetate (EtOAc) soluble fraction was the most active part of the extract. This fraction was chemically profiled by a 13C nuclear magnetic resonance (NMR)-based dereplication method, resulting in the identification of 14 compounds. The dereplication process was followed by the purification of unknown and minor compounds of the EtOAc fraction. A new glycosylated phenol, namely, 3-(3,4-dihydroxyphenyl)propyl-α-l-rhamnopyranoside, together with 6 known compounds were isolated. Their structures were elucidated by spectroscopic methods including NMR and high-resolution electrospray ionization mass spectrometry. The antioxidant activity of fractions and isolated compounds were evaluated by 2,2,1-diphenyl-1-picrylhydrazyl and hydroxyl radical scavenging, and by cupric ion reducing antioxidant capacity assays. In parallel, their enzyme inhibitory property against human neutrophil elastase was assessed. Four subfractions, essentially containing polyphenols and triterpenes, exhibited a significant elastase inhibitory activity and an ellagitannin showed a very high radical scavenging activity.
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Affiliation(s)
- Marie Schmitt
- Université de Reims Champagne Ardenne, CNRS, ICMR UMR 7312 Reims, France
| | | | | | - Jane Hubert
- Université de Reims Champagne Ardenne, CNRS, ICMR UMR 7312 Reims, France
- NatExplore SAS, Prouilly, France
| | - Nicolas Etique
- Université de Reims Champagne Ardenne, CNRS, MEDyC UMR 7369 Reims, France
| | - Laurent Duca
- Université de Reims Champagne Ardenne, CNRS, MEDyC UMR 7369 Reims, France
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Huong PTM, Hanh TTH, Huong PTT, Cuong NT, Hoan DT, Quang TH, Cuong NX, Nam NH. Ursane- and oleane-type triterpene glycosides from Ilex godajam. VIETNAM JOURNAL OF CHEMISTRY 2019. [DOI: 10.1002/vjch.201900067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pham Thi Mai Huong
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology (VAST); 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Tran Thi Hong Hanh
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology (VAST); 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Phan Thi Thanh Huong
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology (VAST); 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Nguyen The Cuong
- Institute of Ecology and Biological Resources; VAST; 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Duong Thi Hoan
- Institute of Ecology and Biological Resources; VAST; 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Tran Hong Quang
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology (VAST); 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Nguyen Xuan Cuong
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology (VAST); 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Nguyen Hoai Nam
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology (VAST); 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
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Huong NT, Ngoc NT, Hanh TTH, Quang TH, Cuong NX, Nam NH, Van Minh C. Chemical constituents from the soft coral Sinularia digitata. VIETNAM JOURNAL OF CHEMISTRY 2019. [DOI: 10.1002/vjch.201900112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nguyen Thi Huong
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Ninh Thi Ngoc
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Tran Thi Hong Hanh
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Tran Hong Quang
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Nguyen Xuan Cuong
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Nguyen Hoai Nam
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Chau Van Minh
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
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