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Polito F, Papaianni M, Woo SL, Malaspina P, Cornara L, De Feo V. Artemisia arborescens (Vaill.) L.: Micromorphology, Essential Oil Composition, and Its Potential as an Alternative Biocontrol Product. PLANTS (BASEL, SWITZERLAND) 2024; 13:825. [PMID: 38592817 PMCID: PMC10974135 DOI: 10.3390/plants13060825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/21/2024] [Accepted: 03/08/2024] [Indexed: 04/11/2024]
Abstract
Artemisia arborescens is a Mediterranean evergreen shrub, with silver grey-green tomentose leaves and a strong scent. It has various ethnopharmacological uses and its secondary metabolites have demonstrated antimicrobial, antiviral, pharmaceutical, phytotoxic, and insecticidal activities. Different extracts obtained from aerial parts of this species are known for their allelopathic effect, but similar studies on its essential oil (EO) are lacking. Therefore, we carried out a pharmacognostic study, obtaining the characterization of the secretory structures and the EO produced. Trans-thujone and camphor are the main components, followed by aromadendrene, camphene, and 8-cedren-13-ol. EO phytotoxic activity was tested on weed plants (Lolium multiflorum Lam. and Sinapis arvensis L.) and crops (Raphanus sativus L. and Cucumis sativus L.), showing inhibition on both germination and radical growth of the two weeds tested. The effects of the EO against the bacterial plant pathogens Xanthomonas campestris pv. campestris (Gram-) and Pseudomonas syringae pv. tomato (Gram+) was also assayed. The minimum inhibitory concentration (MIC) was observed when it was used undiluted [100% v/v], and growth inhibition when diluted at different doses. The antimicrobial activity was also confirmed by the cellular material release and biofilm formation assays. The overall data show that A. arborescens EO can find application as a potential alternative biocontrol product against weeds and plant pathogens. This goal is particularly important from the perspective of replacing synthetic pesticides with natural products, which safeguard both the environment and the health of consumers.
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Affiliation(s)
- Flavio Polito
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy; (F.P.); (V.D.F.)
| | - Marina Papaianni
- Department of Agricultural Sciences, University of Naples Federico II, Via Università 133, 80055 Portici, Italy;
| | - Sheridan Lois Woo
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy;
| | - Paola Malaspina
- Department of Earth, Environment and Life Sciences, University of Genova, Corso Europa 26, 16132 Genova, Italy;
| | - Laura Cornara
- Department of Earth, Environment and Life Sciences, University of Genova, Corso Europa 26, 16132 Genova, Italy;
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy; (F.P.); (V.D.F.)
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Bezerra JN, Gomez MCV, Rolón M, Coronel C, Almeida-Bezerra JW, Fidelis KR, Menezes SAD, Cruz RPD, Duarte AE, Ribeiro PRV, Brito ESD, Coutinho HDM, Morais-Braga MFB, Bezerra CF. Chemical composition, Evaluation of Antiparasitary and Cytotoxic Activity of the essential oil of Psidium brownianum MART EX. DC. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2021.102247] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Effect of Thermal Treatment of Chamomile (Marticaria chamomella) Extract on the Growth Inhibition of Some Pathogenic Fungi. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2020. [DOI: 10.22207/jpam.14.4.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This Study shows the effect of thermal treatment of chamomile (Marticaria chamomella) extract with different concentrations (5,10,15,20,25,30) mg / ml, on inhibition of some pathogenic fungi such as Trichophyton rubrum and Aspergillus fumigatus under the different temperature degrees (25,50,75, 100)°C. The aqueous extract of chamomile gave complete inhibition against the fungus Trichophyton rubrum at (20,25,30) mg/ml under temperatures of (25,50,75,100)°C While, the aqueous extract of chamomile gave complete inhibition against the fungus Aspergillus fumigatus at concentrations (25,30) mg/ml under the temperature degree of (75,100) °C.
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Santos MCD, Bicas JL. Natural blue pigments and bikaverin. Microbiol Res 2020; 244:126653. [PMID: 33302226 DOI: 10.1016/j.micres.2020.126653] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 10/26/2020] [Accepted: 11/13/2020] [Indexed: 10/22/2022]
Abstract
In last years, the main studied microbial sources of natural blue pigments have been the eukaryotic algae, Rhodophytes and Cryptophytes, and the cyanobacterium Arthrospira (Spirulina) platensis, responsible for the production of phycocyanin, one of the most important blue compounds approved for food and cosmetic use. Recent research also includes the indigoidine pigment from the bacteria Erwinia, Streptomyces and Photorhabdus. Despite these advances, there are still few options of microbial blue pigments reported so far, but the interest in these products is high due to the lack of stable natural blue pigments in nature. Filamentous fungi are particularly attractive for their ability to produce pigments with a wide range of colors. Bikaverin is a red metabolite present mainly in species of the genus Fusarium. Although originally red, the biomass containing bikaverin changes its color to blue after heat treatment, through a mechanism still unknown. In addition to the special behavior of color change by thermal treatment, bikaverin has beneficial biological properties, such as antimicrobial and antiproliferative activities, which can expand its use for the pharmaceutical and medical sectors. The present review addresses the production natural blue pigments and focuses on the properties of bikaverin, which can be an important source of blue pigment with potential applications in the food industry and in other industrial sectors.
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Paris M, Ramírez-Corona N, Palou E, López-Malo A. Modelling release mechanisms of cinnamon (Cinnamomum zeylanicum) essential oil encapsulated in alginate beads during vapor-phase application. J FOOD ENG 2020. [DOI: 10.1016/j.jfoodeng.2020.110024] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Avitabile E, Senes N, D’Avino C, Tsamesidis I, Pinna A, Medici S, Pantaleo A. The potential antimalarial efficacy of hemocompatible silver nanoparticles from Artemisia species against P. falciparum parasite. PLoS One 2020; 15:e0238532. [PMID: 32870934 PMCID: PMC7462267 DOI: 10.1371/journal.pone.0238532] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 08/18/2020] [Indexed: 12/16/2022] Open
Abstract
Malaria represents one of the most common infectious diseases which becoming an impellent public health problem worldwide. Antimalarial classical medications include quinine-based drugs, like chloroquine, and artesunate, a derivative of artemisinin, a molecule found in the plant Artemisia annua. Such therapeutics are very effective but show heavy side effects like drug resistance. In this study, "green" silver nanoparticles (AgNPs) have been prepared from two Artemisia species (A. abrotanum and A. arborescens), traditionally used in folk medicine as a remedy for different conditions, and their potential antimalarial efficacy have been assessed. AgNPs have been characterized by UV-Vis, dynamic light scattering and zeta potential, FTIR, XRD, TEM and EDX. The structural characterization has demonstrated the spheroidal shape of nanoparticles and dimensions under 50 nm, useful for biomedical studies. Zeta potential analysis have shown the stability and dispersion of green AgNPs in aqueous medium without aggregation. AgNPs hemocompatibility and antimalarial activity have been studied in Plasmodium falciparum cultures in in vitro experiments. The antiplasmodial effect has been assessed using increasing doses of AgNPs (0.6 to 7.5 μg/mL) on parasitized red blood cells (pRBCs). Obtained data showed that the hemocompatibility of AgNPs is related to their synthetic route and depends on the administered dose. A. abrotanum-AgNPs (1) have shown the lowest percentage of hemolytic activity on pRBCs, underlining their hemocompatibility. These results are in accordance with the lower levels of parasitemia observed after A. abrotanum-AgNPs (1) treatment respect to A. arborescens-AgNPs (2), and AgNPs (3) derived from a classical chemical synthesis. Moreover, after 24 and 48 hours of A. abrotanum-AgNPs (1) treatment, the parasite growth was locked in the ring stage, evidencing the effect of these nanoparticles to hinder the maturation of P. falciparum. The anti-malarial activity of A. abrotanum-AgNPs (1) on pRBCs was demonstrated to be higher than that of A. arborescens-AgNPs (2).
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Affiliation(s)
| | - Nina Senes
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Cristina D’Avino
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | | | - Alessandra Pinna
- Department of Materials, Imperial College London, London, United Kingdom
| | - Serenella Medici
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
- * E-mail: (SM); (AP)
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
- * E-mail: (SM); (AP)
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Yilmaztekin M, Lević S, Kalušević A, Cam M, Bugarski B, Rakić V, Pavlović V, Nedović V. Characterisation of peppermint (Mentha piperita L.) essential oil encapsulates. J Microencapsul 2019; 36:109-119. [DOI: 10.1080/02652048.2019.1607596] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Murat Yilmaztekin
- Department of Food Engineering, Faculty of Engineering, Inonu University, Malatya, Turkey
| | - Steva Lević
- Department of Food Technology and Biochemistry, Faculty of Agriculture, University of Belgrade, Belgrade, Serbia
| | - Ana Kalušević
- Department of Food Technology and Biochemistry, Faculty of Agriculture, University of Belgrade, Belgrade, Serbia
| | - Mustafa Cam
- Department of Food Engineering, Faculty of Engineering, Erciyes University, Kayseri, Turkey
| | - Branko Bugarski
- Department of Chemical Engineering, Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
| | - Vesna Rakić
- Department of Food Technology and Biochemistry, Faculty of Agriculture, University of Belgrade, Belgrade, Serbia
| | - Vladimir Pavlović
- Department of Food Technology and Biochemistry, Faculty of Agriculture, University of Belgrade, Belgrade, Serbia
| | - Viktor Nedović
- Department of Food Technology and Biochemistry, Faculty of Agriculture, University of Belgrade, Belgrade, Serbia
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Said MEA, Militello M, Saia S, Settanni L, Aleo A, Mammina C, Bombarda I, Vanloot P, Roussel C, Dupuy N. Artemisia arborescens Essential Oil Composition, Enantiomeric Distribution, and Antimicrobial Activity from Different Wild Populations from the Mediterranean Area. Chem Biodivers 2017; 13:1095-102. [PMID: 27447740 DOI: 10.1002/cbdv.201500510] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 03/31/2016] [Indexed: 12/12/2022]
Abstract
Aerial parts of Artemisia arborescens were collected from different sites of the Mediterranean area (southwestern Algeria and southern Italy) and the chemical composition of their essential oil (EO) extracted by hydrodistillation was studied by both gas chromatography (GC) equipped with an enantioselective capillary column and GC/mass spectrometry (GC/MS). The EOs obtained were tested against several Listeria monocytogenes strains. Using GC and GC/MS, 41 compounds were identified, accounting for 96.0 - 98.8% of the total EO. All EOs showed a similar terpene profile, which was rich in chamazulene, β-thujone, and camphor. However, the concentration of such compounds varied among the EOs. A. arborescens EO inhibited up to 83.3% of the L. monocytogenes strains, but the inhibitory spectrum varied among the EOs, with those from Algeria showing a higher inhibition degree than the Italian EOs. Such effect likely depended on the ketone (β-thujone + camphor) content of the EO. The differences in the EO composition support the hypothesis that A. arborescens has at least two different chemotypes: a β-thujone and a chamazulene type. The EO inhibitory spectrum indicates the A. arborescens EO as a valuable option in the control of the food-borne pathogens.
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Affiliation(s)
- Mohammed El-Amin Said
- EA4672 LISA Equipe METICA, Aix-Marseille Université, Case 451, Av. Escadrille Normandie Niémen, FR-13397, Marseille Cedex 20
| | - Marcello Militello
- Department of Agricultural and Forest Sciences (SAF), Università degli Studi di Palermo, Viale delle Scienze, Ed. 4, IT-90128, Palermo.
| | - Sergio Saia
- Council for Agricultural Research and Economics (CREA) - Cereal Research Centre (CREA-CER), S.S. 673 km 25,200, IT-71122, Foggia
| | - Luca Settanni
- Department of Agricultural and Forest Sciences (SAF), Università degli Studi di Palermo, Viale delle Scienze, Ed. 4, IT-90128, Palermo
| | - Aurora Aleo
- Department of Health Promotion Sciences, "G. D'Alessandro'', Università degli Studi di Palermo, Via del Vespro, IT-90127, Palermo
| | - Caterina Mammina
- Department of Health Promotion Sciences, "G. D'Alessandro'', Università degli Studi di Palermo, Via del Vespro, IT-90127, Palermo
| | - Isabelle Bombarda
- EA4672 LISA Equipe METICA, Aix-Marseille Université, Case 451, Av. Escadrille Normandie Niémen, FR-13397, Marseille Cedex 20
| | - Pierre Vanloot
- EA4672 LISA Equipe METICA, Aix-Marseille Université, Case 451, Av. Escadrille Normandie Niémen, FR-13397, Marseille Cedex 20
| | - Christian Roussel
- Ecole Centrale, CNRS, iSm2 UMR 7313, Aix-Marseille Université, FR-13397, Marseille Cedex 20
| | - Nathalie Dupuy
- EA4672 LISA Equipe METICA, Aix-Marseille Université, Case 451, Av. Escadrille Normandie Niémen, FR-13397, Marseille Cedex 20
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Ghayempour S, Montazer M. Micro/nanoencapsulation of essential oils and fragrances: Focus on perfumed, antimicrobial, mosquito-repellent and medical textiles. J Microencapsul 2016; 33:497-510. [DOI: 10.1080/02652048.2016.1216187] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Soraya Ghayempour
- Textile Engineering Department, Functional Fibrous Structures & Environmental Enhancement (FFSEE), Amirkabir University of Technology, Tehran, Iran
| | - Majid Montazer
- Textile Engineering Department, Functional Fibrous Structures & Environmental Enhancement (FFSEE), Amirkabir University of Technology, Tehran, Iran
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Dhibi S, Ettaya A, Elfeki A, Hfaiedh N. Protective effects of Artemisia arborescens essential oil on oestroprogestative treatment induced hepatotoxicity. Nutr Res Pract 2015; 9:466-71. [PMID: 26425275 PMCID: PMC4575958 DOI: 10.4162/nrp.2015.9.5.466] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 02/25/2015] [Accepted: 04/08/2015] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Currently, natural products have been shown to exhibit interesting biological and pharmacological activities and are used as chemotherapeutic agents. The purpose of this study, conducted on Wistar rats, was to evaluate the beneficial effects of Artemisia arborescens oil on oestroprogestative treatment induced damage on liver. MATERIALS/METHODS A total of 36 Wistar rats were divided into 4 groups; a control group (n = 9), a group of rats who received oestroprogestative treatment by intraperitoneal injection (n = 9), a group pre-treated with Artemisia arborescens then injected with oestroprogestative treatment (n = 9), and a group pre-treated with Artemisia arborescens (n = 9). To minimize the handling stress, animals from each group were sacrificed rapidly by decapitation. Blood serum was obtained by centrifugation and the livers were removed, cleaned of fat, and stored at -80℃ until use. RESULTS In the current study, oestroprogestative poisoning resulted in oxidative stress, which was demonstrated by 1) a significant increase of lipid peroxidation level in hepatic tissue 2) increased levels of serum transaminases (aspartate amino transferase and serum alanine amino transferase), alkaline phosphatase, glycemia and triglycerides and a decrease in the level of cholesterol 3) alteration of hepatic architecture. Pre-administration of Artemisia arborescens oil was found to alleviate oestroprogestative treatment induced damage by lowering lipid peroxidation level and by increasing activity of catalase, superoxide-dismutase, and glutathione-peroxidase in liver and by reducing disruption of biochemical parameters. CONCLUSION Therefore, the results obtained in this study confirmed that Artemisia essential oil protects against oestroprogestative administration induced hepatotoxicity by restoration of liver activities.
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Affiliation(s)
- Sabah Dhibi
- Physiopathologie environnementale, valorisation des molécules bioactives et modélisation mathématique, Faculty of Sciences of Sfax, Road Soukra km 3.5 - PB n° 1171-3000 Sfax-, Tunisia
| | - Amani Ettaya
- Physiopathologie environnementale, valorisation des molécules bioactives et modélisation mathématique, Faculty of Sciences of Sfax, Road Soukra km 3.5 - PB n° 1171-3000 Sfax-, Tunisia
| | - Abdelfettah Elfeki
- Physiopathologie environnementale, valorisation des molécules bioactives et modélisation mathématique, Faculty of Sciences of Sfax, Road Soukra km 3.5 - PB n° 1171-3000 Sfax-, Tunisia
| | - Najla Hfaiedh
- Physiopathologie environnementale, valorisation des molécules bioactives et modélisation mathématique, Faculty of Sciences of Sfax, Road Soukra km 3.5 - PB n° 1171-3000 Sfax-, Tunisia
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Jain D, Bar-Shalom D. Alginate drug delivery systems: application in context of pharmaceutical and biomedical research. Drug Dev Ind Pharm 2014; 40:1576-84. [DOI: 10.3109/03639045.2014.917657] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Bouzenna H, Krichen L. Pelargonium graveolens L'Her. and Artemisia arborescens L. essential oils: chemical composition, antifungal activity against Rhizoctonia solani and insecticidal activity against Rhysopertha dominica. Nat Prod Res 2012; 27:841-6. [PMID: 22840199 DOI: 10.1080/14786419.2012.711325] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The chemical composition of the Pelargonium graveolens essential oil allowed the identification of 15 compounds (93.86% of the total essential oil). The major fractions were citronellol (35%) and geraniol (28.8%). The chemical composition of the Artemisia arborescens essential oil revealed twenty-one compounds representing 93.57% of the total essential oil. The main compounds were chamazulene (31.9%) and camphor (25.8%). The insecticidal effects were tested towards the insect Rhysopertha dominica. Results revealed that these two essential oils were highly effective against R. dominica at the dose of 50 µL on Petri dish of 8.5 cm of diameter. The antifungal activity was evaluated against Rhizoctonia solani and results showed that both of the essential oils were highly active at a dose of 12.5 µL/20 mL of PDA. Moreover, the inhibitory effect of P. graveolens essential oil was evidenced as stronger than that of the A. arborescens oil for all the tested doses.
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Affiliation(s)
- Hafsia Bouzenna
- Faculté des Sciences de Gafsa, Unité de Recherche Biochimie Macromoléculaire et Génétique, Campus Universitaire Zarroug, 2112 Gafsa, Tunisia
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Heuskin S, Lorge S, Godin B, Leroy P, Frère I, Verheggen FJ, Haubruge E, Wathelet JP, Mestdagh M, Hance T, Lognay G. Optimisation of a semiochemical slow-release alginate formulation attractive towards Aphidius ervi Haliday parasitoids. PEST MANAGEMENT SCIENCE 2012; 68:127-136. [PMID: 21726038 DOI: 10.1002/ps.2234] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Revised: 05/03/2011] [Accepted: 05/17/2011] [Indexed: 05/31/2023]
Abstract
BACKGROUND Optimisation of alginate formulations is described in order to develop semiochemical (E-β-farnesene and E-β-caryophyllene) slow-release devices in biological control approaches by attracting predators and parasitoids of aphids. Various formulation criteria were optimised with respect to semiochemical encapsulation capacity. Moreover, the optimised formulation was characterised by texturometry and confocal microscopy. The slow-release rates of semiochemicals were calculated in laboratory controlled conditions. The attractiveness of semiochemical formulations towards Aphidius ervi was demonstrated by olfactometry. RESULTS Two major parameters were highlighted in encapsulation optimisation: the type of alginate (Sigma L) and the type of crosslinker ion (Ca(2+)). Other formulation parameters were optimised: ionic strength (0.5 M), Ca(2+) (0.2 M) and alginate (1.5%) concentrations and the maturation time of beads in CaCl(2) solution (48 h). After physical characterisation of beads, semiochemical slow-release measurements showed that alginate formulations were efficient sesquiterpene releasers, with 503 µg of E-β-farnesene and 1791 µg of E-β-caryophyllene totally released in 35 days. The efficiency of semiochemical alginate beads as attractants for female parasitoids was demonstrated, with high percentages of attraction for semiochemical odours (88 and 90% for E-β-farnesene and E-β-caryophyllene respectively) and significant statistical results. CONCLUSION Semiochemical alginate beads can be considered as efficient slow-release systems in biological control. These formulations could be very useful to attract aphid parasitoids on crop fields.
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Affiliation(s)
- Stéphanie Heuskin
- Department of Analytical Chemistry, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium
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Coriander (Coriandrum sativum L.) essential oil: its antibacterial activity and mode of action evaluated by flow cytometry. J Med Microbiol 2011; 60:1479-1486. [DOI: 10.1099/jmm.0.034157-0] [Citation(s) in RCA: 155] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Chemical composition and antibacterial potential of Artemisia arborescens L. essential oil. Curr Microbiol 2010; 62:1274-81. [PMID: 21188586 DOI: 10.1007/s00284-010-9855-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Accepted: 12/17/2010] [Indexed: 02/05/2023]
Abstract
This study was undertaken to characterize the essential oil (EO) of Artemisia arborescens growing wild in Sicily. EO, extracted by steam distillation, was examined for its chemical composition and for its capability to inhibit some food-borne pathogen bacteria. A total of 43 compounds (13 monoterpene hydrocarbons, 14 oxygenated monoterpenes, 10 sesquiterpene hydrocarbons, three oxygenated sesquiterpenes and less amount of other three compounds), which account 93.73% of the total oil, were identified by gas chromatography and gas chromatography-mass spectrometry. Oxygenated monoterpenes (57.32%) constituted the main fraction, with β-thujone as the main compound (45.04%), followed by the sesquiterpene hydrocarbon chamazulene (22.71%). Undiluted EO showed a large inhibition spectrum against strains of Listeria monocytogenes (34 out of 44), whilst it was ineffective against enterobacteria and salmonellas. The minimum inhibition concentration (MIC) was evaluated for the two most sensitive strains (L. monocytogenes 186 and 7BO) at two cellular concentrations (10(6) and 10(7) CFU ml(-1)). The lowest MIC (0.625 μl ml(-1), dilution of oil with acetone) was found for strain L. monocytogenes 186 at 10(6) CFU ml(-1).
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Validation of a fast gas chromatographic method for the study of semiochemical slow release formulations. J Pharm Biomed Anal 2010; 53:962-72. [PMID: 20688452 DOI: 10.1016/j.jpba.2010.07.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2010] [Revised: 07/08/2010] [Accepted: 07/13/2010] [Indexed: 11/21/2022]
Abstract
The validation of a fast GC-FID analytical method for the quantitative determination of semiochemical sesquiterpenes (E-beta-farnesene and beta-caryophyllene) to be used in an integrated pest management approach is described. Accuracy profiles using total error as decision criteria for validation were used to verify the overall accuracy of the method results within a well defined range of concentrations and to determine the lowest limit of quantification for each analyte. Furthermore it allowed to select a very simple and reliable regression model for calibration curve for the quantification of both analytes as well as to provide measurement uncertainty without any additional experiments. Finally, this validated method was used for the quantification of semiochemicals in slow release formulations. The goal was to verify the protection efficiency of alginate gel beads formulations against oxidation and degradation of sesquiterpenes. The results showed that the alginate beads are adequate slow release devices which protect the bio-active molecules during at least twenty days.
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Pedro AS, Cabral-Albuquerque E, Ferreira D, Sarmento B. Chitosan: An option for development of essential oil delivery systems for oral cavity care? Carbohydr Polym 2009. [DOI: 10.1016/j.carbpol.2008.12.016] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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