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Oliveira M, João Rodrigues M, Pereira C, Neto RLDM, Junior PAS, Neng NDR, Nogueira JMF, Varela J, Barreira L, Custódio L. First report of the in vitro antileishmanial properties of extremophile plants from the Algarve Coast. Nat Prod Res 2017; 32:600-604. [DOI: 10.1080/14786419.2017.1326489] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Marta Oliveira
- Faculty of Sciences and Technology, Centre of Marine Sciences, University of Algarve, Faro, Portugal
| | - Maria João Rodrigues
- Faculty of Sciences and Technology, Centre of Marine Sciences, University of Algarve, Faro, Portugal
| | - Catarina Pereira
- Faculty of Sciences and Technology, Centre of Marine Sciences, University of Algarve, Faro, Portugal
| | | | | | - Nuno da Rosa Neng
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | | | - João Varela
- Faculty of Sciences and Technology, Centre of Marine Sciences, University of Algarve, Faro, Portugal
| | - Luísa Barreira
- Faculty of Sciences and Technology, Centre of Marine Sciences, University of Algarve, Faro, Portugal
| | - Luísa Custódio
- Faculty of Sciences and Technology, Centre of Marine Sciences, University of Algarve, Faro, Portugal
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Pereira CG, Barreira L, da Rosa Neng N, Nogueira JMF, Marques C, Santos TF, Varela J, Custódio L. Searching for new sources of innovative products for the food industry within halophyte aromatic plants: In vitro antioxidant activity and phenolic and mineral contents of infusions and decoctions of Crithmum maritimum L. Food Chem Toxicol 2017; 107:581-589. [PMID: 28428087 DOI: 10.1016/j.fct.2017.04.018] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [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: 03/21/2017] [Revised: 04/11/2017] [Accepted: 04/13/2017] [Indexed: 01/05/2023]
Abstract
Aromatic halophyte plants are an outstanding source of bioactive compounds and natural products with potential use in the food industry. This work reports the in vitro antioxidant activity, toxicity, polyphenolic profile and mineral contents of infusions and decoctions from stems, leaves and flowers of Crithmum maritimum L., an aromatic and edible maritime halophyte (sea fennel). Aspalathus linearis (Burm.f.) Dahlg. (rooibos) herbal tea was used as a reference. Sea fennel's tisanes, particularly from leaves, were rich in phenolic compounds and five of them (p-hydroxybenzoic and ferulic acids, epicatechin, pyrocatechol and 4-hydroxybenzaldehyde) were here described in C. maritimum for the first time. Chlorogenic acid was the dominant phenolic determined. Na was the most abundant mineral in all tisanes followed by Ca and Mg in leaves' tisanes and K in flowers. Sea fennel's samples had a similar antioxidant activity than those from A. linearis, and had no significant toxicity towards four different mammalian cell lines. Altogether, our results suggest that sea fennel can be a source of products and/or molecules for the food industry with antioxidant properties and minerals in the form, for example, of innovative health-promoting herbal beverages.
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Affiliation(s)
- Catarina Guerreiro Pereira
- Centre of Marine Sciences, University of Algarve, Faculty of Sciences and Technology, Ed. 7, Campus of Gambelas, 8005-139 Faro, Portugal.
| | - Luísa Barreira
- Centre of Marine Sciences, University of Algarve, Faculty of Sciences and Technology, Ed. 7, Campus of Gambelas, 8005-139 Faro, Portugal.
| | - Nuno da Rosa Neng
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Ed. C8, 5° piso, 1749-016 Lisboa, Portugal.
| | - José Manuel Florêncio Nogueira
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Ed. C8, 5° piso, 1749-016 Lisboa, Portugal.
| | - Cátia Marques
- Centre of Marine Sciences, University of Algarve, Faculty of Sciences and Technology, Ed. 7, Campus of Gambelas, 8005-139 Faro, Portugal.
| | - Tamára F Santos
- Centre of Marine Sciences, University of Algarve, Faculty of Sciences and Technology, Ed. 7, Campus of Gambelas, 8005-139 Faro, Portugal.
| | - João Varela
- Centre of Marine Sciences, University of Algarve, Faculty of Sciences and Technology, Ed. 7, Campus of Gambelas, 8005-139 Faro, Portugal.
| | - Luísa Custódio
- Centre of Marine Sciences, University of Algarve, Faculty of Sciences and Technology, Ed. 7, Campus of Gambelas, 8005-139 Faro, Portugal.
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Calado BB, Ahmad SM, Almeida C, Neng NDR, Nogueira JMF. Determination of Trace Levels of Irgarol in Estuarine Water Matrices by Bar Adsorptive Microextraction. J Chromatogr Sci 2016; 54:1453-9. [PMID: 27207994 DOI: 10.1093/chromsci/bmw076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Indexed: 11/13/2022]
Abstract
Bar adsorptive microextraction (BAµE), using selective sorbent phases, followed by liquid desorption in combination with large volume injection-gas chromatography coupled to mass spectrometry (BAµE-LD/LVI-GC-MS), is proposed for the determination of trace levels of irgarol in estuarine water matrices. While we compared several polymers and activated carbons, one of the latter coatings showed much higher selectivity through BAµE. Assays performed on 25 mL of ultra-pure water sample fortified at 0.6 µg/L levels of irgarol yielded recoveries of 74.5 ± 8.6%, under optimized experimental conditions. The proposed analytical procedure showed convenient detection limits (16.0 ng/L) and good linear dynamic range (0.2-16.0 µg/L), with determination coefficients of 0.9982. Good precision was also achieved with RSD lower than 12.0%. The application of the present analytical approach on estuarine water samples by using the standard addition methodology revealed good sensitivity and linearity. The proposed methodology, using nanostructured sorbents and operating under the floating sampling technology, proved to be a suitable analytical alternative to monitor irgarol in estuarine water matrices. Moreover, it is easy to implement, reliable, sensitive, require low sample volume and have the possibility to choose the most selective sorbent coating according to the target compound involved.
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Affiliation(s)
- Bruno Boto Calado
- Departamento de Química e Bioquímica, Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
| | - Samir Marcos Ahmad
- Departamento de Química e Bioquímica, Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
| | - Carlos Almeida
- Departamento de Química e Bioquímica, Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
| | - Nuno da Rosa Neng
- Departamento de Química e Bioquímica, Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
| | - José Manuel Florêncio Nogueira
- Departamento de Química e Bioquímica, Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
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Andrade FN, Ide AH, Neng NDR, Lanças FM, Nogueira JMF. Determination of trace levels of triazines in corn matrices by bar adsorptive microextraction with a molecularly imprinted polymer. J Sep Sci 2016; 39:756-61. [DOI: 10.1002/jssc.201501101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/13/2015] [Accepted: 11/20/2015] [Indexed: 11/10/2022]
Affiliation(s)
| | - Alessandra Honjo Ide
- Centro de Química e Bioquímica, Faculdade de Ciências; Universidade de Lisboa; Campo Grande, Lisboa Portugal
| | - Nuno da Rosa Neng
- Centro de Química e Bioquímica, Faculdade de Ciências; Universidade de Lisboa; Campo Grande, Lisboa Portugal
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Pereira H, Custódio L, Rodrigues MJ, de Sousa CB, Oliveira M, Barreira L, Neng NDR, Nogueira JMF, Alrokayan SA, Mouffouk F, Abu-Salah KM, Ben-Hamadou R, Varela J. Biological Activities and Chemical Composition of Methanolic Extracts of Selected Autochthonous Microalgae Strains from the Red Sea. Mar Drugs 2015; 13:3531-49. [PMID: 26047482 PMCID: PMC4483643 DOI: 10.3390/md13063531] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [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: 03/16/2015] [Revised: 05/18/2015] [Accepted: 05/26/2015] [Indexed: 12/22/2022] Open
Abstract
Four lipid-rich microalgal species from the Red Sea belonging to three different genera (Nannochloris, Picochlorum and Desmochloris), previously isolated as novel biodiesel feedstocks, were bioprospected for high-value, bioactive molecules. Methanol extracts were thus prepared from freeze-dried biomass and screened for different biological activities. Nannochloris sp. SBL1 and Desmochloris sp. SBL3 had the highest radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl, and the best copper and iron chelating activities. All species had potent butyrylcholinesterase inhibitory activity (>50%) and mildly inhibited tyrosinase. Picochlorum sp. SBL2 and Nannochloris sp. SBL4 extracts significantly reduced the viability of tumoral (HepG2 and HeLa) cells with lower toxicity against the non-tumoral murine stromal (S17) cells. Nannochloris sp. SBL1 significantly reduced the viability of Leishmania infantum down to 62% (250 µg/mL). Picochlorum sp. SBL2 had the highest total phenolic content, the major phenolic compounds identified being salicylic, coumaric and gallic acids. Neoxanthin, violaxanthin, zeaxanthin, lutein and β-carotene were identified in the extracts of all strains, while canthaxanthin was only identified in Picochlorum sp. SBL2. Taken together, these results strongly suggest that the microalgae included in this work could be used as sources of added-value products that could be used to upgrade the final biomass value.
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Affiliation(s)
- Hugo Pereira
- Centre of Marine Sciences, University of Algarve, Faro 8005-139, Portugal.
| | - Luísa Custódio
- Centre of Marine Sciences, University of Algarve, Faro 8005-139, Portugal.
| | | | | | - Marta Oliveira
- Centre of Marine Sciences, University of Algarve, Faro 8005-139, Portugal.
| | - Luísa Barreira
- Centre of Marine Sciences, University of Algarve, Faro 8005-139, Portugal.
| | - Nuno da Rosa Neng
- Department of Chemistry and Biochemistry and Center of Chemistry and Biochemistry, Faculty of Sciences, University of Lisbon, Campo Grande, Ed. C8, Lisbon 1749-016, Portugal.
| | - José Manuel Florêncio Nogueira
- Department of Chemistry and Biochemistry and Center of Chemistry and Biochemistry, Faculty of Sciences, University of Lisbon, Campo Grande, Ed. C8, Lisbon 1749-016, Portugal.
| | - Salman A Alrokayan
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Fouzi Mouffouk
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia.
- Department of Chemistry, Faculty of Science, Kuwait University, Safat 13060, Kuwait.
| | - Khalid M Abu-Salah
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia.
- King Abdullah International Medical Research Center, King Abdulaziz Medical City, Riyadh 11426, Saudi Arabia.
| | - Radhouan Ben-Hamadou
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar.
| | - João Varela
- Centre of Marine Sciences, University of Algarve, Faro 8005-139, Portugal.
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da Rosa Neng N, Sequeiros RCP, Florêncio Nogueira JM. Combining bar adsorptive microextraction with capillary electrophoresis-Application for the determination of phenolic acids in food matrices. Electrophoresis 2014; 35:2488-94. [DOI: 10.1002/elps.201400101] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 04/14/2014] [Accepted: 04/15/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Nuno da Rosa Neng
- Chemistry and Biochemistry Department and Center of Chemistry and Biochemistry; Faculty of Sciences, University of Lisbon; Lisbon Portugal
| | - Rute C. P. Sequeiros
- Chemistry and Biochemistry Department and Center of Chemistry and Biochemistry; Faculty of Sciences, University of Lisbon; Lisbon Portugal
| | - José Manuel Florêncio Nogueira
- Chemistry and Biochemistry Department and Center of Chemistry and Biochemistry; Faculty of Sciences, University of Lisbon; Lisbon Portugal
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