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Malik S, Fatima B, Hussain D, Imran M, Chohan TA, Khan MS, Majeed S, Najam-Ul-Haq M. Synthesis of novel nonsteroidal anti-inflammatory galloyl β-sitosterol-loaded lignin-capped Ag-based drug. Inflammopharmacology 2024; 32:1333-1351. [PMID: 37994993 DOI: 10.1007/s10787-023-01390-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 10/27/2023] [Indexed: 11/24/2023]
Abstract
Biocompatible anti-inflammatory lignin-capped Ag (LCAg) nanoparticles (NPs) were synthesized for the delivery of galloyl β-sitosterol (Galloyl-BS). β-Sitosterol (BS) is effective against inflammatory responses, like cancer-induced inflammations. BS was modified via gallic acid esterification to enhance its anti-inflammatory potential. LCAg NPs were synthesized by a green method and loaded with galloyl-BS. For comparison, pure BS was also loaded onto LCAg NPs in a separate assembly. The antioxidant potential of Galloyl-BS was greater (IC50 177 µM) than pure BS. Materials were characterized by FT-IR, SEM, XRD, and Zeta potential. Using UV-Vis spectroscopy, drug release experiments were performed by varying pH, time, concentration, and temperature. Maximum drug release was observed after 18 h at pH 6 and 40 °C. Galloyl-BS showed improved drug loading efficiency, release %age, and antioxidant activity compared to pure BS when loaded onto LCAg NPs. DLCAg exhibited excellent anti-inflammatory activity in rat models. These findings indicate that galloyl-BS (drug)-loaded LCAg (DLCAg) NPs have the potential as an anti-inflammatory agent without any prior release and scavenging in normal cells.
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Affiliation(s)
- Sana Malik
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Batool Fatima
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800, Pakistan.
| | - Dilshad Hussain
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Muhammad Imran
- Biochemistry Section Institute of Chemical Sciences, University of Peshawar, Peshawar, Pakistan
| | - Tahir Ali Chohan
- Department of Biochemistry, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | | | - Saadat Majeed
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Muhammad Najam-Ul-Haq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan.
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Zhang X, Hu G, Xu C, Nie W, Cai K, Fang H, Xu B. Inhibition of benzo[a]pyrene formation in charcoal-grilled pork sausages by ginger and its key compounds. J Sci Food Agric 2023; 103:2838-2847. [PMID: 36700254 DOI: 10.1002/jsfa.12470] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/22/2023] [Accepted: 01/26/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Ginger and its extracts have been frequently used in food processing and pharmaceuticals. However, the influence of ginger and its key compounds on benzo[a]pyrene (BaP) production in meat processing has not been investigated. The purpose of this study was to explore the effect of application of ginger and its important active ingredients on BaP formation and the mechanism of inhibiting BaP formation in charcoal-grilled pork sausages. RESULTS The DPPH scavenging (23.59-59.67%) activity and the inhibition rate of BaP (42.1-68.9%) were significantly increased (P < 0.05) with increasing ginger addition. The active components extracted by supercritical carbon dioxide from ginger were identified by gas chromatography-mass spectrometry and 14 representative compounds (four terpenes, two alcohols, two aldehydes, four phenols and two other compounds, totaling 77.57% of the detected compounds) were selected. The phenolic compounds (eugenol, 6-gingerol, 6-paradol and 6-shogaol, accounting for 29.73% of the total composition) in ginger played a key role and had the strongest inhibitory effect on BaP (61.2-68.2%), whereas four other kinds of compound showed obviously feeble inhibitory activity (6.47-17.9%). Charcoal-grilled sausages with phenolic substances had lower values of thiobarbituric acid-reactive substances, carbonyl and diene (three classic indicators of lipid oxidation) (P < 0.05). CONCLUSION Ginger and its key compounds could effectively inhibit the formation of BaP in charcoal-grilled pork sausages. Phenolic compounds make the strongest contribution to the inhibition of Bap formation, and the inhibitory mechanism was related to the inhibition of lipid oxidation. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xiaomin Zhang
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Gaofeng Hu
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Chaoyang Xu
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Wen Nie
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Kezhou Cai
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Hongmei Fang
- Institute of Yeji Mutton Industry Development and Research, Hefei University of Technology, Hefei, China
| | - Baocai Xu
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, China
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Macovei I, Luca SV, Skalicka-Woźniak K, Horhogea CE, Rimbu CM, Sacarescu L, Vochita G, Gherghel D, Ivanescu BL, Panainte AD, Nechita C, Corciova A, Miron A. Silver Nanoparticles Synthesized from Abies alba and Pinus sylvestris Bark Extracts: Characterization, Antioxidant, Cytotoxic, and Antibacterial Effects. Antioxidants (Basel) 2023; 12:antiox12040797. [PMID: 37107172 PMCID: PMC10135277 DOI: 10.3390/antiox12040797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/10/2023] [Accepted: 03/18/2023] [Indexed: 04/29/2023] Open
Abstract
In recent years, phytofunctionalized AgNPs have attracted great interest due to their remarkable biological activities. In the present study, AgNPs were synthesized using Abies alba and Pinus sylvestris bark extracts. The chemical profile of these bark extracts was analyzed by LC-HRMS/MS. As a first step, the synthesis parameters (pH, AgNO3 concentration, ratio of bark extract and AgNO3, temperature, and reaction time) were optimized. The synthesized AgNPs were characterized by ATR-FTIR spectroscopy, DLS, SEM, EDX, and TEM. Their antioxidant, cytotoxic, and antibacterial properties were evaluated by the DPPH, ABTS, MTT, and broth microdilution assays, respectively. Abies alba and Pinus sylvestris bark extract-derived AgNPs were well-dispersed, spherical, small (average particle size of 9.92 and 24.49 nm, respectively), stable (zeta potential values of -10.9 and -10.8 mV, respectively), and cytotoxic to A-375 human malignant melanoma cells (IC50 = 2.40 ± 0.21 and 6.02 ± 0.61 μg/mL, respectively). The phytosynthesized AgNPs also showed antioxidant and antibacterial effects.
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Affiliation(s)
- Irina Macovei
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Simon Vlad Luca
- Biothermodynamics, TUM School of Life Sciences, Technical University of Munich, D-85354 Freising, Germany
| | | | - Cristina Elena Horhogea
- Department of Public Health, Ion Ionescu de la Brad University of Life Sciences, 700489 Iasi, Romania
| | - Cristina Mihaela Rimbu
- Department of Public Health, Ion Ionescu de la Brad University of Life Sciences, 700489 Iasi, Romania
| | - Liviu Sacarescu
- Petru Poni Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Gabriela Vochita
- NIRDBS, Institute of Biological Research Iasi, 700107 Iasi, Romania
| | - Daniela Gherghel
- NIRDBS, Institute of Biological Research Iasi, 700107 Iasi, Romania
| | - Bianca Laura Ivanescu
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Alina Diana Panainte
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Constantin Nechita
- Marin Dracea National Institute for Research and Development in Forestry, 725100 Campulung Moldovenesc, Romania
| | - Andreia Corciova
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Anca Miron
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iasi, Romania
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Mune Mune MA, Miyabe Y, Shimizu T, Matsui W, Kumagai Y, Kishimura H. Characterisation of Bioactive Peptides from Red Alga Gracilariopsis chorda. Mar Drugs 2023; 21. [PMID: 36662222 DOI: 10.3390/md21010049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/06/2023] [Accepted: 01/07/2023] [Indexed: 01/15/2023] Open
Abstract
In this study, we studied the bioactive peptides produced by thermolysin hydrolysis of a water-soluble protein (WSP) from the red alga Gracilariopsis chorda, whose major components are phycobiliproteins and Ribulose-1,5-bisphosphate carboxylase-oxygenase (RuBisCo). The results showed that WSP hydrolysate exhibited significantly higher ACE inhibitory activity (92% inhibition) compared to DPP-IV inhibitory activity and DPPH scavenging activity. The phycobiliproteins and RuBisCo of G. chorda contain a high proportion of hydrophobic (31.0-46.5%) and aromatic (5.1-46.5%) amino acid residues, which was considered suitable for the formation of peptides with strong ACE inhibitory activity. Therefore, we searched for peptides with strong ACE inhibitory activity and identified two novel peptides (IDHY and LVVER). Then, their interaction with human ACE was evaluated by molecular docking, and IDHY was found to be a promising inhibitor. In silico analysis was then performed on the structural factors affecting ACE inhibitory peptide release, using the predicted 3D structures of phycobiliproteins and RuBisCo. The results showed that most of the ACE inhibitory peptides are located in the highly solvent accessible α-helix. Therefore, it was suggested that G. chorda is a good source of bioactive peptides, especially ACE-inhibitory peptides.
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Ospina-Quiroga JL, García-Moreno PJ, Guadix A, Guadix EM, Almécija-Rodríguez MDC, Pérez-Gálvez R. Evaluation of Plant Protein Hydrolysates as Natural Antioxidants in Fish Oil-In-Water Emulsions. Antioxidants (Basel) 2022; 11:1612. [PMID: 36009330 DOI: 10.3390/antiox11081612] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/15/2022] [Accepted: 08/18/2022] [Indexed: 11/17/2022] Open
Abstract
In this work, we evaluated the physical and oxidative stabilities of 5% w/w fish oil-in-water emulsions stabilized with 1%wt Tween20 and containing 2 mg/mL of protein hydrolysates from olive seed (OSM–H), sunflower (SFSM–H), rapeseed (RSM–H) and lupin (LUM–H) meals. To this end, the plant-based substrates were hydrolyzed at a 20% degree of hydrolysis (DH) employing a mixture 1:1 of subtilisin: trypsin. The hydrolysates were characterized in terms of molecular weight profile and in vitro antioxidant activities (i.e., DPPH scavenging and ferrous ion chelation). After incorporation of the plant protein hydrolysates as water-soluble antioxidants in the emulsions, a 14-day storage study was conducted to evaluate both the physical (i.e., ζ-potential, droplet size and emulsion stability index) and oxidative (e.g., peroxide and anisidine value) stabilities. The highest in vitro DPPH scavenging and iron (II)-chelating activities were exhibited by SFSM–H (IC50 = 0.05 ± 0.01 mg/mL) and RSM–H (IC50 = 0.41 ± 0.06 mg/mL). All the emulsions were physically stable within the storage period, with ζ-potential values below −35 mV and an average mean diameter D[4,3] of 0.411 ± 0.010 μm. Although LUM–H did not prevent lipid oxidation in emulsions, OSM–H and SFSM–H exhibited a remarkable ability to retard the formation of primary and secondary lipid oxidation products during storage when compared with the control emulsion without antioxidants. Overall, our findings show that plant-based enzymatic hydrolysates are an interesting alternative to be employed as natural antioxidants to retard lipid oxidation in food emulsions.
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Barbieri SF, da Costa Amaral S, Mazepa E, Filho APS, Sassaki GL, Silveira JLM. Isolation, NMR characterization and bioactivity of a (4-O-methyl-α-D-glucurono)-β-D-xylan from Campomanesia xanthocarpa Berg fruits. Int J Biol Macromol 2022; 207:893-904. [PMID: 35358579 DOI: 10.1016/j.ijbiomac.2022.03.150] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 03/10/2022] [Accepted: 03/23/2022] [Indexed: 11/26/2022]
Abstract
Hemicellulose-type polysaccharides were isolated from Campomanesia xanthocarpa fruits by alkaline extraction and submitted to fractionation processes giving rise to eluted (GE-300) and retained (GR-300) fractions. GE-300 presented a mixture of galactoglucomannans (GGM) and glucuronoxylans (MGX), while the GR-300 fraction is composed only of MGX. In this way, the chemical structure of MGX, investigated by 1D 1H, 13C and 2D 1H-13C HSQC, 1H-1H COSY and 1H-13C HMBC NMR spectroscopy, revealed that the chemical structure of polysaccharide is a (4-O-methyl-α-D-glucurono)-D-xylan. Deep and precise NMR chemical shift determination of clean and specific 1H NMR glycosyl units were developed by 1D TOCSY and 1D NOESY analysis. This approach demonstrated unequivocally that 4-O-methyl-α-D-glucopyranosyl uronic acid group is linked to O-2 of a (1 → 4)-β-D-xylan in the main chain. Furthermore, MGX scavenged DPPH radical (0.5 to 1.0 mg mL-1) and was not cytotoxic to human dermal fibroblasts at concentrations up to 1.0 mg mL-1, as demonstrated by neutral red and crystal violet assays, evidencing in vitro biocompatibility. The structure elucidation of GR-300 together with its bioactivity assessment contributed to better understand the chemical characteristics of C. xanthocarpa hemicelluloses and may provide structural basis for future structure-property studies.
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Affiliation(s)
- Shayla Fernanda Barbieri
- Postgraduate Program in Biochemistry Sciences, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR 81.531-980, Brazil
| | - Sarah da Costa Amaral
- Postgraduate Program in Biochemistry Sciences, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR 81.531-980, Brazil
| | - Ester Mazepa
- Postgraduate Program in Biochemistry Sciences, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR 81.531-980, Brazil
| | | | - Guilherme Lanzi Sassaki
- Postgraduate Program in Biochemistry Sciences, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR 81.531-980, Brazil; Department of Biochemistry and Molecular Biology, Federal University of Paraná, CEP 81.531-980 Curitiba, PR, Brazil
| | - Joana Léa Meira Silveira
- Postgraduate Program in Biochemistry Sciences, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR 81.531-980, Brazil.
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Sharma K, Kadian V, Kumar A, Mahant S, Rao R. Evaluation of solubility, photostability and antioxidant activity of ellagic acid cyclodextrin nanosponges fabricated by melt method and microwave-assisted synthesis. J Food Sci Technol 2022; 59:898-908. [PMID: 35153320 PMCID: PMC8814127 DOI: 10.1007/s13197-021-05085-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/17/2021] [Accepted: 03/24/2021] [Indexed: 12/16/2022]
Abstract
Ellagic acid (EA) is a polyphenolic bioactive with a wide range of pharmacological activities. Regrettably, it possesses poor solubility, stability and permeability (in the gastrointestinal tract); and first-pass metabolism. Therefore, to address these challenges, the present research was aimed to encapsulate EA in cyclodextrin nanosponges (CDNS). Herein, the melt method and microwave-assisted technique have been employed for crafting CDNS. EA was loaded in CDNS via freeze-drying, followed by appropriate characterization. EA-CDNS were also assessed for encapsulation, particle size, zeta potential, and polydispersity index, which presented satisfactory results. In vitro, antioxidant activity was conducted using the DPPH (2, 2-diphenyl-1-picrylhydrazyl) assay. The solubilization efficacy of EA was analyzed in distilled water and compared with CDNS, which demonstrated ten folds augmentation for the selected batch. A remarkable improvement in the photostability of EA was also observed after its inclusion. In nutshell, the results demonstrated the superiority of the melt method in terms of solubility, entrapment, photostability, and antioxidant potential.
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Affiliation(s)
- Komal Sharma
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001 India
| | - Varsha Kadian
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001 India
| | - Anil Kumar
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001 India
| | - Sheefali Mahant
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, 124001 India
| | - Rekha Rao
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001 India
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Flieger J, Franus W, Panek R, Szymańska-Chargot M, Flieger W, Flieger M, Kołodziej P. Green Synthesis of Silver Nanoparticles Using Natural Extracts with Proven Antioxidant Activity. Molecules 2021; 26:4986. [PMID: 34443574 DOI: 10.3390/molecules26164986] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/14/2021] [Accepted: 08/15/2021] [Indexed: 12/20/2022] Open
Abstract
Natural extracts are a rich source of biomolecules that are useful not only as antioxidant drugs or diet supplements but also as complex reagents for the biogenic synthesis of metallic nanoparticles. The natural product components can act as strong reducing and capping substrates guaranteeing the stability of formed NPs. The current work demonstrates the suitability of extracts of Camellia sinensis, Ilex paraguariensis, Salvia officinalis, Tilia cordata, Levisticum officinale, Aegopodium podagraria, Urtica dioica, Capsicum baccatum, Viscum album, and marine algae Porphyra Yezoensis for green synthesis of AgNPs. The antioxidant power of methanolic extracts was estimated at the beginning according to their free radical scavenging activity by the DPPH method and reducing power activity by CUPRAC and SNPAC (silver nanoparticle antioxidant capacity) assays. The results obtained by the CUPRAC and SNAPC methods exhibited excellent agreement (R2~0.9). The synthesized AgNPs were characterized by UV-vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), dynamic light scattering (DLS) particle size, and zeta potential. The UV-vis absorption spectra showed a peak at 423 nm confirming the presence of AgNPs. The shapes of extract-mediated AgNPs were mainly spherical, spheroid, rod-shaped, agglomerated crystalline structures. The NPs exhibited a high negative zeta potential value in the range from -49.8 mV to -56.1 mV, proving the existence of electrostatic stabilization. FTIR measurements indicated peaks corresponding to different functional groups such as carboxylic acids, alcohol, phenol, esters, ethers, aldehydes, alkanes, and proteins, which were involved in the synthesis and stabilization of AgNPs. Among the examined extracts, green tea showed the highest activity in all antioxidant tests and enabled the synthesis of the smallest nanoparticles, namely 62.51, 61.19, and 53.55 nm, depending on storage times of 30 min, 24 h, and 72 h, respectively. In turn, the Capsicum baccatum extract was distinguished by the lowest zeta potential, decreasing with storage time from -66.0 up to -88.6 mM.
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González-Ballesteros N, Rodríguez-Argüelles MC, Lastra-Valdor M. Evaluation of the Antioxidant Capacities of Antarctic Macroalgae and Their Use for Nanoparticles Production. Molecules 2021; 26:1182. [PMID: 33672102 PMCID: PMC7926919 DOI: 10.3390/molecules26041182] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 02/16/2021] [Accepted: 02/20/2021] [Indexed: 12/19/2022] Open
Abstract
Macroalgae are sources of bioactive compounds that are interesting from both a chemical and a medical point of view. Although their use in biomedicine has increased significantly in recent years, tests conducted to date have been mostly related to species from temperate latitudes, with the potential application of Antarctic biodiversity being minor. The wide variety of algae species present on Antarctic coastal areas can be a source of new antioxidants. Bearing this in mind, the brown macroalgae Desmarestia antarctica (DA) and the red Iridaea cordata (IC) were selected for the preparation of aqueous extracts with the aim of analyzing their antioxidant activity. This analysis was performed by determining reducing power, total phenolic content, and 2,2-diphenyl-1-picrylhydrazyl free radical scavenging activity. Furthermore, both extracts were employed to synthesize gold and silver nanoparticles. The nanomaterials were fully characterized by means of UV-Visible spectroscopy, transmission electron microscopy, Z potential measurements, and Fourier transform infrared spectroscopy, which confirmed the formation of stable, spherical nanoparticles with mean diameters of 13.7 ± 3.1 and 17.5 ± 3.7 nm for Ag@DA and Ag@IC and 12.6 ± 1.9 and 12.3 ± 1.6 nm for Au@DA and Au@IC. Antioxidant assays were performed after the synthesis of the nanomaterials to evaluate their possible synergistic effect with the extracts. The results suggest that polysaccharides and proteins may play a key role in the process of reduction and stabilization. Finally, for the sake of comparison, the results obtained for the Antarctic macroalgae Desmarestia menziesii and Palmaria decipiens have also been considered in the present work.
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Affiliation(s)
| | | | - M. Lastra-Valdor
- Centro de Investigación Marina, Universidade de Vigo, 36331 Vigo, Spain;
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Zolkeflee NKZ, Isamail NA, Maulidiani M, Abdul Hamid NA, Ramli NS, Azlan A, Abas F. Metabolite variations and antioxidant activity of Muntingia calabura leaves in response to different drying methods and ethanol ratios elucidated by NMR-based metabolomics. Phytochem Anal 2021; 32:69-83. [PMID: 31953888 DOI: 10.1002/pca.2917] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 11/03/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
INTRODUCTION Muntingia calabura from the Muntingiaceae family has been documented for several medicinal uses. The combinations of drying treatment and extracting solvents for a plant species need to be determined and optimised to ensure that the extracts contain adequate amounts of the bioactive metabolites. OBJECTIVE Evaluate the metabolite variations and antioxidant activity among M. calabura leaves subjected to different drying methods and extracted with different ethanol ratios using proton nuclear magnetic resonance (1 H-NMR)-based metabolomics. Methodology The antioxidant activity of M. calabura leaves dried with three different drying methods and extracted with three different ethanol ratios was determined by using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and nitric oxide (NO) scavenging assays. The metabolites variation among the extracts and correlation with antioxidant activity were analysed by 1 H-NMR-based metabolomics. RESULTS Muntingia calabura leaves extracted with 50% and 100% ethanol from air-drying and freeze-drying methods had the highest total phenolic content and the lowest IC50 value for the DPPH scavenging activity. Meanwhile, oven-dried leaves extracted with 100% ethanol had the lowest IC50 value for the NO scavenging activity. A total of 43 metabolites, including sugars, organic acids, amino acids, phytosterols, phenolics and terpene glycoside were tentatively identified. A noticeable discrimination was observed in the different ethanol ratios by the principal component analysis. The partial least-squares analysis suggested that 32 compounds out of 43 compounds identified were the contributors to the bioactivities. CONCLUSION The results established set the preliminary steps towards developing this plant into a high value product for phytomedicinal preparations.
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Affiliation(s)
| | - Nor Amira Isamail
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Maulidiani Maulidiani
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Schoool of Fundamental Science, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
| | - Nur Ashikin Abdul Hamid
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Nurul Shazini Ramli
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Azrina Azlan
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Faridah Abas
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Mohamed Ahmed IA, Al-Juhaimi F, Adisa AR, Adiamo OQ, Babiker EE, Osman MA, Gassem MA, Ghafoor K, Alqah HAS, Elkareem MA. Optimization of ultrasound-assisted extraction of phenolic compounds and antioxidant activity from Argel ( Solenostemma argel Hayne) leaves using response surface methodology (RSM). J Food Sci Technol 2020; 57:3071-80. [PMID: 32624609 DOI: 10.1007/s13197-020-04340-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 02/22/2020] [Accepted: 03/11/2020] [Indexed: 10/24/2022]
Abstract
In this study, phenolic compounds were extracted from Argel leaves using an ultrasound-assisted extraction (UAE) method. The extraction parameters (sonication temperature, time, and ethanol concentration) were optimized using a response surface methodology (Box-Behnken design), in order to maximize the total phenolic content (TPC) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging activity of Argel leaf extracts (ALEs). The phenolic compounds of the ALEs obtained under optimized conditions were also identified. The optimum UAE conditions for achieving maximum TPC (72.27 g gallic acid equivalents kg-1 DW) and DPPH scavenging activity (86.15%) were a 60 °C temperature, a 37.07 min duration, and a 39.14% ethanol concentration. Under these conditions, the experimental values of TPC and DPPH scavenging activity were 73.02 g GAE kg-1 and 85.56%, respectively, which agreed with the predicted values. In addition, the major phenolic acids found in ALEs under the optimized extraction conditions were sinapic, p-coumaric, and ferulic acid. Overall, the findings of this study demonstrated the suitability of UAE and the success of RSM in optimizing the extraction conditions of bioactive compounds from ALEs.
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Chen Y, Yang W, Zou G, Chen S, Pang J, She Z. Bioactive polyketides from the mangrove endophytic fungi Phoma sp. SYSU-SK-7. Fitoterapia 2019; 139:104369. [PMID: 31626911 DOI: 10.1016/j.fitote.2019.104369] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 10/04/2019] [Accepted: 10/04/2019] [Indexed: 10/25/2022]
Abstract
Five new polyketides, colletotric B (2), 3-hydroxy-5-methoxy-2,4,6-trimethylbenzoic acid (3), colletotric C (4), chaetochromone D (6) and 8-hydroxy-pregaliellalactone B (9), together with four known analogues (1, 5 and 7-8) were isolated from the mangrove endophytic fungus Phoma sp. SYSU-SK-7. Their structures were elucidated by analysis of extensive spectroscopic data and mass spectrometric data. Compounds 1-2 showed strong antimicrobial activity against the P. aeruginosa, MRSA and C. albicans with the MIC values in the range of 1.67-6.28 μg/ml. Furthermore, Compounds 1-5 also exhibited significant α-glucosidase inhibitory activity with the IC50 values in the range of 36.2-90.6 μM. Compound 7 was found to inhibited radical scavenging activity against DPPH with the EC50 value of 11.8 μM.
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Affiliation(s)
- Yan Chen
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China; School of Marin Sciences, Sun Yat-sen University, South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510006, China
| | - Wencong Yang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Ge Zou
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Shenyu Chen
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Jiyan Pang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Zhigang She
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China; School of Marin Sciences, Sun Yat-sen University, South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510006, China.
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Popova MP, Trusheva BS, Nedialkov PT, Tsvetkova I, Pardo-Mora DP, Najdenski H, Torres-García OA, Sforcin JM, Bankova VS. New Δ-tocotrienol derivatives from Colombian propolis. Nat Prod Res 2019; 34:2779-2786. [PMID: 30938183 DOI: 10.1080/14786419.2019.1590710] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Two new δ-tocotrienol derivatives with oxidized terminal chain: 5,6-dioxo-garcinoic acid (trans-13'-carboxy-5,6-dioxo-δ-tocotrienol) (2) and 5-hydroxy-8b-oxo garcinoic acid (trans-13'-carboxy-5-hydroxy-8b-oxo-δ-tocotrienol) (3), together with one known derivative garcinoic acid (trans-13'-carboxy-δ-tocotrienol) (1) were isolated from a Colombian propolis. Garcinoic acid was found as a propolis constituent for the first time. The isolated compounds and crude ethanolic extract demonstrated high antimicrobial activity against Staphylococcus aureus and Candida albicans (MICs range: 10-39 μg/ml) as well as promising antioxidant potential in DPPH assay. Compound 3 displayed highest radical scavenging activity, even higher than that of dl-α-tocopherol, used as a positive control.
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Affiliation(s)
- Milena P Popova
- Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences , Sofia , Bulgaria
| | - Boryana S Trusheva
- Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences , Sofia , Bulgaria
| | - Paraskev T Nedialkov
- Department of Pharmacognosy Faculty of Pharmacy, Medical University-Sofia , Sofia , Bulgaria
| | - Iva Tsvetkova
- Institute of Microbiology "Stefan Angelov" Bulgarian Academy of Sciences , Sofia , Bulgaria
| | - Dolly P Pardo-Mora
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Antonio Nariño , Bogotá , Colombia
| | - Hristo Najdenski
- Institute of Microbiology "Stefan Angelov" Bulgarian Academy of Sciences , Sofia , Bulgaria
| | - Orlando A Torres-García
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Antonio Nariño , Bogotá , Colombia
| | - José M Sforcin
- São Paulo State University (UNESP), Institute of Biosciences , Campus Botucatu , Brazil
| | - Vassya S Bankova
- Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences , Sofia , Bulgaria
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Ben Ammar R, Miyamoto T, Chekir-Ghedira L, Ghedira K, Lacaille-Dubois MA. Isolation and identification of new anthraquinones from Rhamnus alaternus L and evaluation of their free radical scavenging activity. Nat Prod Res 2018. [PMID: 29533086 DOI: 10.1080/14786419.2018.1446135] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
From the butanolic and the ethyl acetate extracts of Rhamnus alaternus L root bark and leaves, three new anthraquinone glycosides, alaternosides A-C (1,4,6,8 tetrahydroxy-3 methyl anthraquinone 1-O-ß-D-glucopyranosyl-4,6-di-O-α-L-rhamnopyranoside (1); 1,2,6,8 tetrahydroxy-3 methyl anthraquinone 8-O-ß-D-glucopyranoside (2) and 1, 6 dihydroxy-3 methyl 6 [2'-Me (heptoxy)] anthraquinone (3)) were isolated and elucidated together with the two known anthraquinone glycosides, Physcion-8-O-rutinoside (4) and emodin-6-O-α-L-rhamnoside (5) as well as with the known kaempferol-7-methylether (6), β-sitosterol (7) and β-sitosterol-3-O-glycoside (8). Their chemical structures were elucidated using spectroscopic methods (1D-, 2D-NMR and FAB-MS). Free radical scavenging activity of the isolated compounds was evaluated by their ability to scavenge DPPH. free radicals. Compounds (3), (4) and (6) showed the highest activity with IC50 values of 9.46, 27.68 and 2.35 μg/mL, respectively.
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Affiliation(s)
- Rebai Ben Ammar
- a Department of Biological Sciences, College of Sciences , King Faisal University , Al Hufuf , Saudi Arabia.,b Laboratoire des Plantes Aromatiques et Médicinales, Centre de Biotechnologie de Borj Cédria , Hammam-lif , Tunisia
| | - Tomofumi Miyamoto
- c Graduate School of Pharmaceutical Sciences , Kyushu University , Fukuoka , Japan
| | - Leila Chekir-Ghedira
- d Unité de Substances Naturelles Bioactives et Biotechnologie (UR12ES12), Faculté de pharmacie de Monastir , Université de Monastir , Monastir , Tunisia.,e Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine , University of Monastir , Monastir , Tunisia
| | - Kamel Ghedira
- d Unité de Substances Naturelles Bioactives et Biotechnologie (UR12ES12), Faculté de pharmacie de Monastir , Université de Monastir , Monastir , Tunisia
| | - Marie-Aleth Lacaille-Dubois
- f Laboratoire de Pharmacognosie , UMIB, UFR des Sciences de Santé, Université de Bourgogne Franche-Comté , Dijon Cedex , France
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Abstract
OBJECTIVES Two important classes of hydrazide-containing fused azaisocytosines were evaluated as possible antioxidants and characterised by UV spectroscopy. METHODS 2,2-Diphenyl-1-picrylhydazyl (DPPH), nitric oxide (NO), hydrogen peroxide (H2O2) scavenging potencies and reducing power of molecules were evaluated. RESULTS The strongest DPPH scavengers were found to be 9, showing the potency superior to that of butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), propyl gallate (PG) and 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid (Trolox) and comparable to that of ascorbic acid (AA), and 6, revealing the antioxidant potency superior to that of BHA, BHT, PG and Trolox. In turn, 3 and 9 were the most promising NO scavengers, exhibiting the potency superior to that of BHA, BHT (3 and 9) and AA (3). The most potent H2O2 scavengers proved to be 10 and 9 showing similar or even better neutralising potency than that of Trolox, BHT and BHA. Simultaneously, the majority of hydrazides revealed higher ferric reducing abilities than that of AA and BHT. Some structure-activity relationships were explored. A possible mechanism for the DPPH radical scavenging ability of hydrazide-containing molecules was proposed. DISCUSSION Hydrazides 3, 6 and 9 with an antioxidant potential better or comparable to that of the well-known antioxidants are proposed as new antioxidant candidates.
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Affiliation(s)
- Małgorzata Sztanke
- a Department of Medical Chemistry , Medical University , Lublin , Poland
| | - Krzysztof Sztanke
- b Laboratory of Bioorganic Synthesis and Analysis, Department of Medical Chemistry , Medical University , Lublin , Poland
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Gabr AM, Ghareeb H, El Shabrawi HM, Smetanska I, Bekheet S. Enhancement of silymarin and phenolic compound accumulation in tissue culture of Milk thistle using elicitor feeding and hairy root cultures. J Genet Eng Biotechnol 2016; 14:327-333. [PMID: 30647631 PMCID: PMC6299848 DOI: 10.1016/j.jgeb.2016.10.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 10/02/2016] [Accepted: 10/17/2016] [Indexed: 11/24/2022]
Abstract
In the present study, the effects of the metabolite elicitors chitosan, methyl jasmonate (MeJA) and salicylic acid (SA) as well as the hairy root transformation were tested for silymarin and phenolic compound accumulation in in vitro cultures of Milk thistle. For callus induction, leaf explants were cultured on MS medium supplemented with 5 mg/l NAA + 2 mg/l Kin + 0.1 mg/l GA3. Chitosan, SA and MeJA were added separately in three concentrations 200, 400 and 800 mg/l; 10, 20 and 40 mg/l; 20, 40 and 80 mg/l, respectively, to hormone free B5 medium. Alternatively, cotyledons of 12 day old seedlings were transformed with Agrobacterium rhizogenes A4 strain. Overall, increasing the concentrations of the three elicitors dramatically increased the total silymarin content. Remarkably, the elicitors mainly enhanced the accumulation of silybine A&B that were not detected in un-treated callus culture (control). In addition, the hairy root culture triggered the accumulation of silybine A&B, and silydianin, which was not detected in the non-transgenic roots. The hairy root culture was superior in production of the phenolic compounds in comparison to the control and elicitor treatments. The hairy root cultures showed also higher antioxidant capacities than non-transformed cultures and/or chemically elicited-callus cultures. Thus hairy root provide instrumental in enhancing the production of economically valuable metabolite.
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Affiliation(s)
- Ahmed M.M. Gabr
- Plant Biotechnology Dept., National Research Centre, Bohouth Str., Dokki, Cairo, Egypt
- Department of Plant Food Processing, Agricultural Faculty, University of Applied Science Weihenstephan-Triesdorf, Markgrafenstr 16, 91746 Weidenbach, Germany
- Corresponding author at: Plant Biotechnology Dept., National Research Centre, Bohouth Str., Dokki, Cairo, Egypt.
| | - Hassan Ghareeb
- Plant Biotechnology Dept., National Research Centre, Bohouth Str., Dokki, Cairo, Egypt
| | - Haatem M. El Shabrawi
- Plant Biotechnology Dept., National Research Centre, Bohouth Str., Dokki, Cairo, Egypt
| | - Iryna Smetanska
- Department of Plant Food Processing, Agricultural Faculty, University of Applied Science Weihenstephan-Triesdorf, Markgrafenstr 16, 91746 Weidenbach, Germany
| | - S.A. Bekheet
- Plant Biotechnology Dept., National Research Centre, Bohouth Str., Dokki, Cairo, Egypt
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Wang L, Wu Y, Chen Y, Zou J, Li X. Biotransformation of Resveratrol: New Prenylated trans-Resveratrol Synthesized by Aspergillus sp. SCSIOW2. Molecules 2016; 21:molecules21070883. [PMID: 27399656 PMCID: PMC6274042 DOI: 10.3390/molecules21070883] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 06/24/2016] [Accepted: 07/04/2016] [Indexed: 01/26/2023] Open
Abstract
Arahypin-16 (1), a new prenylated resveratrol with a unique dihydrobenzofuran ring, has been isolated as a microbial metabolite of resveratrol (2) from whole-cell fermentation of Aspergillus sp. SCSIOW2. The stereochemistry of 1 was determined by ECD calculations. 1 showed about half of the extracellular radical scavenging effect (IC50 = 161.4 μM) compared with resveratrol (IC50 = 80.5 μM), while on biomembranes it exhibited the same range of protection effects against free radicals generated from AAPH (IC50 = 78.6 μM and 87.9 μM).
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Affiliation(s)
- Liyan Wang
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
| | - Yanhua Wu
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
| | - Yongtao Chen
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
| | - Jiaxin Zou
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
| | - Xiaofan Li
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China.
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Si Y, Li N, Tong L, Lin B, Wang W, Xing Y, Liu X, Yue H, Xu J, Ju A. Bioactive minor components of the total salvianolic acids injection prepared from Salvia miltiorrhiza Bge. Bioorg Med Chem Lett 2015; 26:82-6. [PMID: 26602274 DOI: 10.1016/j.bmcl.2015.11.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/08/2015] [Accepted: 11/09/2015] [Indexed: 11/26/2022]
Abstract
UNLABELLED The total salvianolic acids are main effective constituents of Salvia miltiorrhiza Bge., a traditional Chinese medicine used for thousands of years. The purpose of present study was to make clear the composition and bioactivities of the minor components of the total salvianolic acids injection. As a result, three new minor phenolic acids (1-3) together with six known compounds (4-9) were characterized from the total salvianolic acids injection. Their structures were elucidated by extensive analysis of the spectral data. The absolute configuration of compounds 1-3 were confirmed by their J7',8' observed in (1)H NMR spectra, absorption band at approximately 250-260nm in their CD spectra as well as chemical shifts of C-8″ and C-8‴ displayed in (13)C NMR spectra. Then DPPH free radical scavenging assay and NAD(P)H quinine oxidoreductase 1 (NQO1) inducing activity test were employed to evaluate the antioxidant effect of new minor compounds 1 and 2. Compound 2 showed significant NQO1 inducing activity at 20μM with IR value 2.6. Meanwhile, DPPH scavenging assay revealed that the inhibition rates of compounds 1 and 2 were 84.3% and 74.9% at 2mM, respectively.
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Affiliation(s)
- Yingying Si
- School of Traditional Chinese Materia Media, Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University), Ministry of Education, Wenhua Road 103, Shenyang 110016, China
| | - Ning Li
- School of Traditional Chinese Materia Media, Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University), Ministry of Education, Wenhua Road 103, Shenyang 110016, China.
| | - Ling Tong
- Tasly R&D Institute, Tianjin Tasly Group Co., Ltd., Tianjin 300402, China
| | - Bin Lin
- Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University), Ministry of Education, Wenhua Road 103, Shenyang 110016, China; School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Wenli Wang
- School of Traditional Chinese Materia Media, Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University), Ministry of Education, Wenhua Road 103, Shenyang 110016, China
| | - Yachao Xing
- School of Traditional Chinese Materia Media, Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University), Ministry of Education, Wenhua Road 103, Shenyang 110016, China
| | - Xiaolin Liu
- Tasly R&D Institute, Tianjin Tasly Group Co., Ltd., Tianjin 300402, China
| | - Hongshui Yue
- Tianjin Tasly Pride Pharmaceutical Co., Ltd., Tianjin 300402, China
| | - Jingyao Xu
- Tasly R&D Institute, Tianjin Tasly Group Co., Ltd., Tianjin 300402, China
| | - Aichun Ju
- Tianjin Tasly Pride Pharmaceutical Co., Ltd., Tianjin 300402, China
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Argentieri MP, Levi M, Guzzo F, Avato P. Phytochemical analysis of Passiflora loefgrenii Vitta, a rich source of luteolin-derived flavonoids with antioxidant properties. ACTA ACUST UNITED AC 2015; 67:1603-12. [PMID: 26245522 DOI: 10.1111/jphp.12454] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 05/17/2015] [Indexed: 11/27/2022]
Abstract
OBJECTIVES The paper describes the flavonoid composition of the aerial parts (young leaves, YL; adult leaves, AL; stems, ST) of Passiflora loefgrenii Vitta, a rare species native to Brazil, where it is traditionally used as food. Antioxidant potential has also been evaluated. To the best of our knowledge, no phytochemical and biological study on this species has been reported previously. METHODS Compositional data have been acquired combining HPLC-diode array detector (DAD) and Electrospary ionization-tandem mass spectrometry (ESI-MS/MS) analyses. Antioxidant activity has been evaluated by the 2,2'-di-phenyl-1-picrylhydrazyl method. KEY FINDINGS Glycosylated flavones, with luteolin as the main aglycone, can be regarded as biomarkers for this drug. Qualitative composition of the extracts from YL, AL and ST was similar. The bulk of the constituents was made up by 8-C-ß-glucosyl luteolin (orientin), 7-O-α-rhamnosyl-6-C-ß-glucosyl luteolin and 6-C-α-rhamnosyl luteolin, which totally amounted to 16.57 (73%), 10.77 (74%) and 5.07 (77%) μg/mg in YL, AL and ST, respectively. P. loefgrenii showed a good antioxidant activity (IC50 of 350 μg/ml), higher than generally reported for other passifloras. CONCLUSIONS P. loefgrenii, rich in luteolin glycosides, can be regarded as a good candidate to be explored for therapeutic properties other than the sedative one since it represents a rich source of valuable flavonoids with antioxidant potential.
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Affiliation(s)
- Maria Pia Argentieri
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari Aldo Moro, Bari, Italy
| | - Marisa Levi
- Dipartimento di Biotecnologia, Università di Verona, Verona, Italy
| | - Flavia Guzzo
- Dipartimento di Biotecnologia, Università di Verona, Verona, Italy
| | - Pinarosa Avato
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari Aldo Moro, Bari, Italy
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Mansouri M, Movahedian A, Rostami M, Fassihi A. Synthesis and antioxidant evaluation of 4-(furan-2-yl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate esters. Res Pharm Sci 2012; 7:257-64. [PMID: 23248677 PMCID: PMC3523418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Biginelli-type pyrimidines contain an interesting moiety which has attracted considerable attention of medicinal chemists in the last few decades. Despite the very diverse pharmacologic effects ascribed to this kind of pyrimidines, there are few reports on the antioxidant evaluation of Biginelli pyrimidines. In this study synthesis of some novel Biginelli-type pyrimidines is reported. The prepared compounds are ester derivatives of 6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate with a simple hetaryl group, furan, at C-4 position of the pyrimidine ring. These compounds were evaluated for free radical and H(2)O(2) scavenging activities. The reducing power of these compounds was also determined. Compound 3c was the most potent one in diphenyl picrylhydrazine scavenging activity assay with the IC(50) of 0.6 mg/ml. The results of reducing power assays proved that 3d and 3e are moderate reducing agents. All of the studied compounds were very weak in scavenging hydrogen peroxide compared with gallic acid.
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Affiliation(s)
- M. Mansouri
- Department of Medicinal Chemistry and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - A. Movahedian
- Department of Biochemistry and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - M. Rostami
- Department of Medicinal Chemistry and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - A. Fassihi
- Department of Medicinal Chemistry and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran.,Corresponding author: A. Fassihi Tel. 0098 311 7922562, Fax. 0098 311 6680011
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Mohadjerani M. Antioxidant Activity and Total Phenolic Content of Nerium oleander L. Grown in North of Iran. Iran J Pharm Res 2012; 11:1121-6. [PMID: 24250545 PMCID: PMC3813149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
IN THIS STUDY, WE HAVE EXAMINED THE ANTIOXIDANT ACTIVITY AND TOTAL PHENOLIC CONTENT OF DIFFERENT EXTRACTS (INCLUDING WATER, METHANOL, WATER : methanol and acetone) of Nerium oleander L. grown in the north of Iran by employing various in-vitro assay, i.e. DPPH free radical scavenging, reducing power and total antioxidant capacity through the Mo (VI) reduction. The extracts showed different levels of efficacy in each assay in a dose-dependent manner. Methanolic and aqueous methanolic extracts with the highest amount of total phenolic (by using the Folin-Ciocalteu phenol reagent method), were the most potent antioxidant in all of the assays that were used. According to the results of present study, Nerium oleander L. flowers were found to serve as a potential source of natural antioxidants.
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Affiliation(s)
- Maryam Mohadjerani
- Department of Molecular and Cell Biology, Faculty of Basic Science, University of Mazandaran, Babolsar, Iran
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