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Paloukopoulou C, Tsadila C, Govari S, Soulioti A, Mossialos D, Karioti A. Extensive analysis of the cultivated medicinal herbal drug Origanum dictamnus L. and antimicrobial activity of its constituents. PHYTOCHEMISTRY 2023; 208:113591. [PMID: 36682432 DOI: 10.1016/j.phytochem.2023.113591] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 06/17/2023]
Abstract
Phytochemical investigations of the methanol extract from Origanum dictamnus L. (Lamiaceae) resulted in the isolation of forty compounds belonging to the classes of terpenes, resorcinol derivatives, flavonoids, depsides, neolignans and jasmonates. Chromatographic isolations were targeted by using two analytical platforms, NMR and HPLC-PDA-MS. In parallel, HPLC-PDA-MS of individual fractions enabled the unambiguous identification of additionally eight components. In total 48 constituents were isolated/identified. Among the isolated constituents are four undescribed compounds, one resorcinol derivative, one monoterpene, one diterpene and one acylated flavonoid glycoside. The structures of the isolated compounds were elucidated on the basis of spectroscopic analyses, including 1D and 2D NMR, and HPLC-ESI-MS and HRMS experiments. Representative compounds were tested for their antimicrobial activity against Staphylococcus aureus and Pseudomonas aeruginosa. I4-II7-dicarvacrol was the most potent constituent.
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Affiliation(s)
- Charikleia Paloukopoulou
- Laboratory of Pharmacognosy, School of Pharmacy, Aristotle University of Thessaloniki, University Campus, 54124, Thessaloniki, Greece
| | - Christina Tsadila
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, Larissa, Greece
| | - Sofia Govari
- Laboratory of Pharmacognosy, School of Pharmacy, Aristotle University of Thessaloniki, University Campus, 54124, Thessaloniki, Greece
| | - Athina Soulioti
- Laboratory of Pharmacognosy, School of Pharmacy, Aristotle University of Thessaloniki, University Campus, 54124, Thessaloniki, Greece
| | - Dimitris Mossialos
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, Larissa, Greece
| | - Anastasia Karioti
- Laboratory of Pharmacognosy, School of Pharmacy, Aristotle University of Thessaloniki, University Campus, 54124, Thessaloniki, Greece.
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Li N, Ji X, Mukherjee S, Yang B, Ren Y, Wang C, Chen Y. A Bioinspired Skin UV Filter with Broadband UV Protection, Photostability, and Resistance to Oxidative Damage. ACS APPLIED MATERIALS & INTERFACES 2023; 15:10383-10397. [PMID: 36800210 DOI: 10.1021/acsami.2c19773] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In recent years, sunscreens' adverse impacts on the environment and biology have gained wide attention. The improvement of sunscreen safety has become one of the major priorities in skin photoprotection research. It is an effective strategy to develop bionic photoprotective materials by simulating the photoprotective mechanism existing in nature. Inspired by the photoprotective mechanisms of skin and plant leaves, the bionic photoprotective material CS-SA-PDA nanosheet was developed using the free radical grafting method and Michael addition, with natural melanin analogue polydopamine (PDA) nanoparticles and plant sunscreen molecular sinapic acid (SA) as sun protection factors and natural polymer chitosan (CS) as the connecting arm. The results show that CS-SA-PDA can effectively shield UVB and UVA due to the possible synergistic effect between PDA and SA. The introduction of polymer CS significantly improved the photostability of SA and reduced the skin permeability of PDA nanoparticles. The CS-SA-PDA nanosheet can also effectively scavenge photoinduced free radicals. Furthermore, in vivo toxicity and anti-UV evaluations confirm that CS-SA-PDA has no skin irritation and is excellent against skin photodamage, which makes it an ideal skin photoprotective material.
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Affiliation(s)
- Nini Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - Xiaohong Ji
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Somnath Mukherjee
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Bing Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Yuqing Ren
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Changhao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Yashao Chen
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
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Fernandes JM, Termentzi A, Mandova T, Hammad K, Machera K, Magiatis P, Michel S, Zucolotto SM, Grougnet R. Detection, Isolation, and 1H NMR Quantitation of the Nitrile Glycoside Sarmentosin from a Bryophyllum pinnatum Hydro-Ethanolic Extract. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:8081-8089. [PMID: 34279926 DOI: 10.1021/acs.jafc.1c01414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Bryophyllum pinnatum (Lam) Pers. (Crassulaceae) is widely used in folk medicine as leaf juice, aqueous, or hydro-ethanolic extracts. It is also listed as a medicinal plant in several countries such as France and Brazil. The main reported constituents are flavone glycosides, especially those with the rare 3-O-α-l-arabinopyranosyl-(1 → 2)-α-l-rhamnopyranoside moiety. Despite several phytochemical screenings indicating the presence of cyanide derivatives or alkaloids, there are no reports of nitrogenous metabolite characterization from this plant species. Nevertheless, the occurrence and the type of such compounds are of particular interest, as they may account for some of the numerous biological activities and ethnomedicinal uses described for B. pinnatum and could be regarded as chemical/taxonomic markers. Consequently, a hydro-ethanolic extract of B. pinnatum was investigated by using UHPLC-HRMS/MS and the nitrile glucoside sarmentosin was detected for the first time within the genus Bryophyllum/Kalanchoe. Considering the wide use of B. pinnatum and its closely related species for health purposes, the target metabolite was isolated by a combination of centrifugal partition chromatography in elution/extrusion mode and MPLC in order to confirm its structure. A linear, selective, precise, fast, and reliable 1H NMR quantitation method was then developed and validated and may become a tool for easy quality assessment of the plant species. The amount of sarmentosin was determined as 2.07% of the examined sample. Sarmentosin was also detected in Kalanchoe laciniata, confirming the occurrence of this compound within the genus.
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Affiliation(s)
- Júlia Morais Fernandes
- Grupo de Pesquisa em Produtos Naturais Bioativos, Departamento de Farmácia, Universidade Federal do Rio Grande do Norte, 59.012-570 Natal, Brazil
| | - Aikaterini Termentzi
- Laboratory of Pesticides' Toxicology, Department of Pesticides Control & Phytopharmacy, Benaki Phytopathological Institute, 14561 Athens, Greece
| | - Tsvetelina Mandova
- Equipe Produits naturels, analyse, synthèse, UMR CNRS 8038, Faculté de Pharmacie, Université Paris Descartes/Université de Paris, 75006 Paris, France
| | - Karim Hammad
- Equipe Produits naturels, analyse, synthèse, UMR CNRS 8038, Faculté de Pharmacie, Université Paris Descartes/Université de Paris, 75006 Paris, France
| | - Kyriaki Machera
- Laboratory of Pesticides' Toxicology, Department of Pesticides Control & Phytopharmacy, Benaki Phytopathological Institute, 14561 Athens, Greece
| | - Prokopios Magiatis
- Laboratory of Pharmacognosy and Natural Products Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Sylvie Michel
- Equipe Produits naturels, analyse, synthèse, UMR CNRS 8038, Faculté de Pharmacie, Université Paris Descartes/Université de Paris, 75006 Paris, France
| | - Silvana M Zucolotto
- Grupo de Pesquisa em Produtos Naturais Bioativos, Departamento de Farmácia, Universidade Federal do Rio Grande do Norte, 59.012-570 Natal, Brazil
| | - Raphaël Grougnet
- Equipe Produits naturels, analyse, synthèse, UMR CNRS 8038, Faculté de Pharmacie, Université Paris Descartes/Université de Paris, 75006 Paris, France
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Park HY, Saini RK, Gopal J, Keum YS, Kim DH, Lee O, Sivanesan I. Micropropagation and Subsequent Enrichment of Carotenoids, Fatty Acids, and Tocopherol Contents in Sedum dasyphyllum L. Front Chem 2017; 5:77. [PMID: 29062834 PMCID: PMC5640719 DOI: 10.3389/fchem.2017.00077] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Accepted: 09/25/2017] [Indexed: 12/24/2022] Open
Abstract
A promising micropropagation protocol has been systematically established and demonstrated for the enhanced production of carotenoids, tocopherol and fatty acids in shoot tissues of Sedum dasyphyllum. Shoot tip explants were grown on Murashige and Skoog (MS) medium. Different concentrations of N6-benzyladenine (BA) or thidiazuron (TDZ) alone or in combination with α-naphthaleneacetic acid (NAA) were tested in order to stimulate multiple shoot production. Ideal shoot induction (100%) and maximized shoot numbers (36.4) were obtained on explants cultured on media incorporated with 2 μM BA and 1 μM NAA combinations. The in vitro-developed shoots rooted best on half-strength MS media incorporated with 2 μM indole 3-butyric acid. Plantlets were effectively acclimatized in the greenhouse with 100% survival rate. The composition and contents of bioactive compounds such as carotenoids, tocopherol and fatty acids in shoot tissues of S. dasyphyllum were investigated using HPLC and GC-MS. The most abundant carotenoid in the shoot tissue was all-E-lutein (40.3-70.5 μg g-1 FW) followed by 9'-Z-neoxanthin (5.3-9.9 μg g-1 FW), all-E-violaxanthin (4.4-8.2 μg g-1 FW), and all-E-β-carotene (1.6-3.6 μg g-1 FW). The α-tocopherol contents of in vitro-raised shoots was 6.5-fold higher than shoots of greenhouse-grown plants. The primary fatty acids found in shoot tissues were α-linolenic acid (32.0-39.3%), linoleic acid (27.4-38.2%), palmitic acid (13.3-15.5%), and stearic acid (5.2-12.2%). In all, summarizing the findings, the micropropagated S. dasyphyllum showed significant enrichment of valuable bioactive carotenoids (92.3 μg g-1 FW), tocopherols (14.6 μg g-1 FW), and α-linolenic acid (39.3%) compared to their greenhouse counterparts. The protocol demonstrated here could be applied for the mass propagation and production of enhanced bioactive compounds from S. dasyphyllum with credibility.
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Affiliation(s)
- Han Yong Park
- Department of Bioresource Engineering, Sejong University, Seoul, South Korea
| | - Ramesh Kumar Saini
- Department of Bioresources and Food Science, Konkuk University, Seoul, South Korea
| | - Judy Gopal
- Department of Bioresources and Food Science, Konkuk University, Seoul, South Korea
| | - Young-Soo Keum
- Department of Bioresources and Food Science, Konkuk University, Seoul, South Korea
| | - Doo Hwan Kim
- Department of Bioresources and Food Science, Konkuk University, Seoul, South Korea
| | - Onew Lee
- Department of Bioresource Engineering, Sejong University, Seoul, South Korea
| | - Iyyakkannu Sivanesan
- Department of Bioresources and Food Science, Konkuk University, Seoul, South Korea
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