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Nakhle L, Kfoury M, Greige-Gerges H, Landy D. Retention of a plethora of essential oils and aromas in deep eutectic solvent:water:cyclodextrin mixtures. J INCL PHENOM MACRO 2022. [DOI: 10.1007/s10847-022-01174-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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2
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Fadel H, Lotfy S, El-aleem FA, Ahmed MS, Asfour M, Taleb SA, Saad R. Preparation and evaluation of a functional effervescent powder based on inclusion complexes of orange oil and β-cyclodextrin derivatives.. [DOI: 10.21203/rs.3.rs-2226110/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Abstract
Flavoured functional effervescent powders are becoming increasingly popular by consumers due to their health benefits and easy dissolution. In present study, orange flavoured effervescent powders having functional properties were prepared. Orange oil (O) was blended with different essential oils (EOs) having high antioxidant activity. The orange oil and the O-EOs blends were subjected to gas chromatography-mass spectrometry (GC-MS) analysis and evaluation of radical scavenging activity. Combinations of two water soluble β-cyclodextrine polymers, 2-hydroxypropyl-β-cyclodextrine (2-HP-β-CD) and epihydrin-β-cyclodextrin (EPI-β-CD) were prepared at different molar ratios (3: 1 and 1: 3, F1 and F2, respectively). The O-EOs blends that showed the highest antioxidant activities and best odour qualities were encapsulated with F1 and F2, separately. The orange flavoured inclusion complexes were prepared by freeze drying method. The particle sizes of the inclusion complex powders were in the nanoscale. Characterization of the inclusion complexes nanoparticles were performed by scanning electron microscopy (SEM), Fourier transform infrared microscopy (FT-IR). The results confirmed the successful formation of the inclusion complexes. However, inclusion complex of O-EOs blend with F1 (O-F1C-IC) showed the smallest particle size (113.9 ± 15.9 nm), the more negative zeta potential (-27.1 ± 1.27 mV), the highest encapsulation efficiency (95.51%) and best odour quality. Therefore, it was mixed with an effervescent powder having high acceptable characteristics. The orange flavoured effervescent powder showed superior flowability.
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3
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Nanomedicine as an Emerging Technology to Foster Application of Essential Oils to Fight Cancer. Pharmaceuticals (Basel) 2022; 15:ph15070793. [PMID: 35890092 PMCID: PMC9320655 DOI: 10.3390/ph15070793] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/15/2022] [Accepted: 06/20/2022] [Indexed: 12/01/2022] Open
Abstract
Natural prodrugs extracted from plants are increasingly used in many sectors, including the pharmaceutical, cosmetic, and food industries. Among these prodrugs, essential oils (EOs) are of particular importance. These biologically active volatile oily liquids are produced by medicinal and aromatic plants and characterized by a distinctive odor. EOs possess high anticancer, antibacterial, antiviral, and antioxidant potential but often are associated with low stability; high volatility; and a high risk of deterioration with exposure to heat, humidity, light, or oxygen. Furthermore, their bioavailability is limited because they are not soluble in water, and enhancements are needed to increase their potential to target specific cells or tissues, as well as for controlled release. Nanomedicine, the application of nanotechnology in medicine, may offer efficient solutions to these problems. The technology is based on creating nanostructures in which the natural prodrug is connected to or encapsulated in nanoparticles or submicron-sized capsules that ensure their solubility in water and their targeting properties, as well as controlled delivery. The potential of EOs as anticancer prodrugs is considerable but not fully exploited. This review focusses on the recent progress towards the practical application of EOs in cancer therapy based on nanotechnology applications.
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Issa D, Najjar A, Greige-Gerges H, Nehme H. Screening of Some Essential Oil Constituents as Potential Inhibitors of the ATP Synthase of Escherichia coli. J Food Sci 2018; 84:138-146. [PMID: 30569590 DOI: 10.1111/1750-3841.14421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 11/15/2018] [Accepted: 11/16/2018] [Indexed: 12/13/2022]
Abstract
Many novel bacterial targets and natural inhibitors of enzymes are currently being considered to overcome antibiotic resistance of Escherichia coli. Hence, in this study, 20 essential oil constituents were screened for their potential inhibitory effect on E. coli ATP synthase. This enzyme is involved in the hydrolysis of ATP into ADP and inorganic phosphate (Pi). First, E. coli membrane ATP synthase was isolated via cell lysis. A spectrophotometric method was optimized to quantify the released phosphate from ATP hydrolysis in order to follow the enzymatic activity. The method was validated by determining the kinetic parameters of this reaction (Km = 144.66 μM and Vmax = 270.27 μM/min), and through the inhibition assays of ATP synthase using three reference inhibitors, thymoquinone (half maximal inhibitory concentration [IC50 ] = 50.93 μM), resveratrol (maximum inhibition of 40%), and quercetin (IC50 = 29.01 μM). Among the studied essential oil components, α-terpinene was the most potent inhibitor (IC50 = 19.74 μM) followed by β-pinene, isoeugenol, eugenol, and estragole.
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Affiliation(s)
- Daniella Issa
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Section II, Lebanese Univ., B.P. 90656, Jdeidet El-Matn, Lebanon
| | - Amal Najjar
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Section II, Lebanese Univ., B.P. 90656, Jdeidet El-Matn, Lebanon
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Section II, Lebanese Univ., B.P. 90656, Jdeidet El-Matn, Lebanon
| | - Hala Nehme
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Section II, Lebanese Univ., B.P. 90656, Jdeidet El-Matn, Lebanon
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6
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7
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A friendly environmental approach for the controlled release of Eucalyptus essential oil. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.04.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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8
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Characterization of Cyclodextrin/Volatile Inclusion Complexes: A Review. Molecules 2018; 23:molecules23051204. [PMID: 29772824 PMCID: PMC6100373 DOI: 10.3390/molecules23051204] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/13/2018] [Accepted: 05/15/2018] [Indexed: 11/17/2022] Open
Abstract
Cyclodextrins (CDs) are a family of cyclic oligosaccharides that constitute one of the most widely used molecular hosts in supramolecular chemistry. Encapsulation in the hydrophobic cavity of CDs positively affects the physical and chemical characteristics of the guests upon the formation of inclusion complexes. Such a property is interestingly employed to retain volatile guests and reduce their volatility. Within this scope, the starting crucial point for a suitable and careful characterization of an inclusion complex is to assess the value of the formation constant (Kf), also called stability or binding constant. This task requires the application of the appropriate analytical method and technique. Thus, the aim of the present paper is to give a general overview of the main analytical tools used for the determination of Kf values for CD/volatile inclusion complexes. This review emphasizes on the advantages, inconvenients and limits of each applied method. A special attention is also dedicated to the improvement of the current methods and to the development of new techniques. Further, the applicability of each technique is illustrated by a summary of data obtained from the literature.
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Santos P, Souza LKM, Araújo TSL, Medeiros JVR, Nunes SCC, Carvalho RA, Pais ACC, Veiga FJB, Nunes LC, Figueiras A. Methyl-β-cyclodextrin Inclusion Complex with β-Caryophyllene: Preparation, Characterization, and Improvement of Pharmacological Activities. ACS OMEGA 2017; 2:9080-9094. [PMID: 30023600 PMCID: PMC6044968 DOI: 10.1021/acsomega.7b01438] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 11/27/2017] [Indexed: 05/24/2023]
Abstract
β-Caryophyllene (BCP) is a sesquiterpene that shows high potential in pharmacological applications. However, these have been drastically limited by the respective volatility and poor water solubility. The present study investigates the formation of inclusion complexes between BCP and methyl-β-cyclodextrin (MβCD) and shows that these complexes promote a significant improvement of the anti-inflammatory, gastric protection, and antioxidant activities relative to neat BCP. It is shown that the solubility of BCP is significantly increased through complexation in phase solubility studies. Inclusion complexes with MβCD in solid state were prepared by three different methods, kneading, rotary evaporation, and lyophilization, with the latter confirmed by differential scanning calorimetry, Fourier transformed infrared spectroscopy, scanning electron microscopy, 1H NMR spectroscopy, and molecular dynamics studies. This study provides for the first time a full characterization of inclusion complexes between BCP and MβCD and highlights the impact of complex formation upon pharmacological activity.
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Affiliation(s)
- Pauline
S. Santos
- Postgraduate
Program of Northeast Biotechnology Network, Faculty of Pharmacy, Federal University of Piauí, Teresina, 64049-550, Piauí, Brazil
| | - Luan K. M. Souza
- Northeast
Biotechnology Network, Postgraduate Program in Biotechnology, Federal University of Piauí, 64202-020, Parnaíba, Piauí, Brazil
| | - Thiago S. L. Araújo
- Northeast
Biotechnology Network, Postgraduate Program in Biotechnology, Federal University of Piauí, 64202-020, Parnaíba, Piauí, Brazil
| | - Jand Venes R. Medeiros
- Northeast
Biotechnology Network, Postgraduate Program in Biotechnology, Federal University of Piauí, 64202-020, Parnaíba, Piauí, Brazil
| | - Sandra C. C. Nunes
- Department of Chemistry, CQC, Department of Biochemistry, NMR Spectroscopy
Center, Faculty of Sciences and Technology, and REQUIMTE/LAQV, Group of Pharmaceutical
Technology, Faculty of Pharmacy, University
of Coimbra, 3000-548 Coimbra, Portugal
| | - Rui A. Carvalho
- Department of Chemistry, CQC, Department of Biochemistry, NMR Spectroscopy
Center, Faculty of Sciences and Technology, and REQUIMTE/LAQV, Group of Pharmaceutical
Technology, Faculty of Pharmacy, University
of Coimbra, 3000-548 Coimbra, Portugal
| | - Alberto C. C. Pais
- Department of Chemistry, CQC, Department of Biochemistry, NMR Spectroscopy
Center, Faculty of Sciences and Technology, and REQUIMTE/LAQV, Group of Pharmaceutical
Technology, Faculty of Pharmacy, University
of Coimbra, 3000-548 Coimbra, Portugal
| | - Francisco J. B. Veiga
- Department of Chemistry, CQC, Department of Biochemistry, NMR Spectroscopy
Center, Faculty of Sciences and Technology, and REQUIMTE/LAQV, Group of Pharmaceutical
Technology, Faculty of Pharmacy, University
of Coimbra, 3000-548 Coimbra, Portugal
| | - Lívio C.
C. Nunes
- Postgraduate
Program of Northeast Biotechnology Network, Faculty of Pharmacy, Federal University of Piauí, Teresina, 64049-550, Piauí, Brazil
| | - Ana Figueiras
- Department of Chemistry, CQC, Department of Biochemistry, NMR Spectroscopy
Center, Faculty of Sciences and Technology, and REQUIMTE/LAQV, Group of Pharmaceutical
Technology, Faculty of Pharmacy, University
of Coimbra, 3000-548 Coimbra, Portugal
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10
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Nguyễn CH, Putaux JL, Santoni G, Tfaili S, Fourmentin S, Coty JB, Choisnard L, Gèze A, Wouessidjewe D, Barratt G, Lesieur S, Legrand FX. New nanoparticles obtained by co-assembly of amphiphilic cyclodextrins and nonlamellar single-chain lipids: Preparation and characterization. Int J Pharm 2017; 531:444-456. [PMID: 28698068 DOI: 10.1016/j.ijpharm.2017.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 06/30/2017] [Accepted: 07/02/2017] [Indexed: 01/04/2023]
Abstract
This work aimed at preparing new nanoscale assemblies based on an amphiphilic bio-esterified β-cyclodextrin (β-CD), substituted at the secondary face with n-decanoic fatty acid chains (β-CD-C10), and monoolein (MO) as new carriers for parenteral drug delivery. Stable binary (β-CD-C10/MO) and ternary (β-CD-C10/MO/stabilizer) nanoscale assemblies close to 100nm in size were successfully prepared in water by the solvent displacement method. The generated nanoparticles were fully characterized by dynamic light scattering, transmission electron microscopy, small-angle X-ray scattering, residual solvent analysis, complement activation and the contribution of each formulation parameter was determined by principal component analysis. The β-CD-C10 units were shown to self-organize into nanoparticles with a hexagonal supramolecular packing that was significantly modulated by the molar ratio of the constituents and the presence of a steric or electrostatic stabilizer (DOPE-PEG2000 or DOPA/POPA, respectively). Indeed, nanoparticles differing in morphology and in hexagonal lattice parameters were obtained while the co-existence of multiple mesophases was observed in some formulations, in particular for the β-CD-C10/MO/DOPA and β-CD-C10/MO/POPA systems. The mixed β-CD-C10/MO/DOPE-PEG2000 nanoparticles (49:49:2 in mol%) appeared to be the most suitable for use as a drug delivery system since they contained a very low amount of residual solvent and showed a low level of complement C3 activation.
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Affiliation(s)
- Cảnh Hưng Nguyễn
- Institut Galien Paris-Sud, CNRS UMR 8612, Univ. Paris-Sud, Université Paris-Saclay, 5 rue Jean-Baptiste Clément, F-92290 Châtenay-Malabry, France
| | - Jean-Luc Putaux
- Centre de Recherches sur les Macromolécules Végétales, CNRS UPR 5301, Univ. Grenoble Alpes, BP 53, F-38401 Grenoble Cedex 9, France
| | - Gianluca Santoni
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, F-38000 Grenoble, France
| | - Sana Tfaili
- Lip(Sys)², EA 7357, Chimie Analytique Pharmaceutique, Univ. Paris-Sud, Université Paris-Saclay, 5 rue Jean-Baptiste Clément, F-92290 Châtenay-Malabry, France
| | - Sophie Fourmentin
- Unité de Chimie Environnementale et Interactions sur le Vivant, EA 4492, SFR Condorcet FR CNRS 3417, Université Littoral Côte d'Opale, 145 avenue Maurice Schumann, F-59140 Dunkerque, France
| | - Jean-Baptiste Coty
- Institut Galien Paris-Sud, CNRS UMR 8612, Univ. Paris-Sud, Université Paris-Saclay, 5 rue Jean-Baptiste Clément, F-92290 Châtenay-Malabry, France
| | - Luc Choisnard
- Département de Pharmacochimie Moléculaire, CNRS UMR 5063, Univ. Grenoble Alpes, F-38000 Grenoble, France
| | - Annabelle Gèze
- Département de Pharmacochimie Moléculaire, CNRS UMR 5063, Univ. Grenoble Alpes, F-38000 Grenoble, France
| | - Denis Wouessidjewe
- Département de Pharmacochimie Moléculaire, CNRS UMR 5063, Univ. Grenoble Alpes, F-38000 Grenoble, France
| | - Gillian Barratt
- Institut Galien Paris-Sud, CNRS UMR 8612, Univ. Paris-Sud, Université Paris-Saclay, 5 rue Jean-Baptiste Clément, F-92290 Châtenay-Malabry, France
| | - Sylviane Lesieur
- Institut Galien Paris-Sud, CNRS UMR 8612, Univ. Paris-Sud, Université Paris-Saclay, 5 rue Jean-Baptiste Clément, F-92290 Châtenay-Malabry, France
| | - François-Xavier Legrand
- Institut Galien Paris-Sud, CNRS UMR 8612, Univ. Paris-Sud, Université Paris-Saclay, 5 rue Jean-Baptiste Clément, F-92290 Châtenay-Malabry, France.
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11
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Dudzik K, Wojcik J, Ejchart A, Nowakowski M. Size makes a difference: Chiral recognition in complexes of fenchone with cyclodextrins studied by means of NMR titration. Chirality 2017; 29:747-758. [DOI: 10.1002/chir.22747] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 07/19/2017] [Accepted: 07/21/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Karolina Dudzik
- Faculty of Pharmacy with the Laboratory Medicine Division; Medical University of Warsaw; Warsaw Poland
| | - Jacek Wojcik
- Institute of Biochemistry and Biophysics; Laboratory of Biological NMR; Warsaw Poland
| | - Andrzej Ejchart
- Institute of Biochemistry and Biophysics; Laboratory of Biological NMR; Warsaw Poland
| | - Michał Nowakowski
- Faculty of Chemistry, Biological and Chemical Research Centre; University of Warsaw; Warsaw Poland
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12
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Valorisation of softwood bark through extraction of utilizable chemicals. A review. Biotechnol Adv 2017; 35:726-750. [PMID: 28739505 DOI: 10.1016/j.biotechadv.2017.07.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 06/20/2017] [Accepted: 07/11/2017] [Indexed: 01/31/2023]
Abstract
Softwood bark is an important source for producing chemicals and materials as well as bioenergy. Extraction is regarded as a key technology for obtaining chemicals in general, and valorizing bark as a source of such chemicals in particular. In this paper, properties of 237 compounds identified in various studies dealing with extraction of softwood bark were described. Finally, some challenges and perspectives on the production of chemicals from bark are discussed.
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Kfoury M, Pipkin J, Antle V, Fourmentin S. Captisol®: an efficient carrier and solubilizing agent for essential oils and their components. FLAVOUR FRAG J 2017. [DOI: 10.1002/ffj.3395] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Miriana Kfoury
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492); SFR Condorcet FR CNRS 3417, ULCO F-59140 Dunkerque France
| | - J.D. Pipkin
- Ligand Pharmaceuticals Inc.; San Diego California USA
| | - Vince Antle
- Ligand Pharmaceuticals Inc.; San Diego California USA
| | - Sophie Fourmentin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492); SFR Condorcet FR CNRS 3417, ULCO F-59140 Dunkerque France
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14
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Azzi J, Danjou PE, Landy D, Ruellan S, Auezova L, Greige-Gerges H, Fourmentin S. The effect of cyclodextrin complexation on the solubility and photostability of nerolidol as pure compound and as main constituent of cabreuva essential oil. Beilstein J Org Chem 2017; 13:835-844. [PMID: 28546841 PMCID: PMC5433144 DOI: 10.3762/bjoc.13.84] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 04/07/2017] [Indexed: 12/03/2022] Open
Abstract
Nerolidol (Ner), a major component of many plant essential oils, is known for its various biological properties. However, the low solubility of Ner in water and its susceptibility to degradation limit its application. The aim of our study was to improve the solubility and photostability of Ner through its encapsulation in different cyclodextrins (CDs). The formation constants of cis-, trans-Ner and their commercial mixture with various CDs (α-CD, β-CD, γ-CD, HP-β-CD, RAMEB, CRYSMEB and SBE-β-CD) were determined by phase solubility studies and confirmed by the spectral displacement UV-visible method. The solubility of cabreuva essential oil (EO) rich in trans-Ner was also evaluated by total organic carbon (TOC) analysis. The encapsulation efficiency (EE %) of Ner in HP-β-CD solid complexes was assessed by HPLC. The structural characterization of CD/trans-Ner inclusion complex was then conducted by NMR spectroscopy followed by molecular modelling studies. The effect of encapsulation on the Ner photostability was also carried out over time under UVB irradiation. AL-type phase-solubility diagrams were obtained, suggesting the formation of 1:1 CD/Ner inclusion complexes. The solubility of Ner was enhanced by approximately 70-fold in the presence of 10 mM HP-β-CD. Moreover, high EE % values were obtained for 5:1 and 10:1 HP-β-CD:Ner molar ratios. NMR and molecular modelling studies revealed the most stable structure for trans-Ner inside the CD cavity with the OH group oriented towards the wider rim of the CD. Finally, CD encapsulation of Ner as pure compound or as main component of the cabreuva EO, protected it from degradation. This effect was more pronounced as the concentration of CD increased. These findings suggested that CDs are promising encapsulating carriers for Ner by enhancing its solubility and stability and thereby its application in food industry.
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Affiliation(s)
- Joyce Azzi
- Bioactive Molecules Research Group, Doctoral School of Sciences and Technologies, Faculty of Sciences, Jdaidet El-Matn, Lebanese University, Lebanon.,Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
| | - Pierre-Edouard Danjou
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
| | - Steven Ruellan
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
| | - Lizette Auezova
- Bioactive Molecules Research Group, Doctoral School of Sciences and Technologies, Faculty of Sciences, Jdaidet El-Matn, Lebanese University, Lebanon
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Group, Doctoral School of Sciences and Technologies, Faculty of Sciences, Jdaidet El-Matn, Lebanese University, Lebanon
| | - Sophie Fourmentin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
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15
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Kfoury M, Landy D, Ruellan S, Auezova L, Greige-Gerges H, Fourmentin S. Nootkatone encapsulation by cyclodextrins: Effect on water solubility and photostability. Food Chem 2016. [PMID: 28624088 DOI: 10.1016/j.foodchem.2016.12.086] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Nootkatone (NO) is a sesquiterpenoid volatile flavor, used in foods, cosmetics and pharmaceuticals, possessing also insect repellent activity. Its application is limited because of its low aqueous solubility and stability; this could be resolved by encapsulation in cyclodextrins (CDs). This study evaluated the encapsulation of NO by CDs using phase solubility studies, Isothermal Titration Calorimetry, Nuclear Magnetic Resonance spectroscopy and molecular modeling. Solid CD/NO inclusion complex was prepared and characterized for encapsulation efficiency and loading capacity using UV-Visible. Thermal properties were investigated by thermogravimetric-differential thermal analysis and release studies were performed using multiple headspace extraction. Formation constants (Kf) proved the formation of stable inclusion complexes. NO aqueous solubility, photo- and thermal stability were enhanced and the release could be insured from solid complex in aqueous solution. This suggests that CDs are promising carrier to improve NO properties and, consequently, to enlarge its use in foods, cosmetics, pharmaceuticals and agrochemicals preparations.
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Affiliation(s)
- Miriana Kfoury
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France; Bioactive Molecules Research Group, Faculty of Sciences, Section II, Lebanese University, Lebanon
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
| | - Steven Ruellan
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
| | - Lizette Auezova
- Bioactive Molecules Research Group, Faculty of Sciences, Section II, Lebanese University, Lebanon
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Group, Faculty of Sciences, Section II, Lebanese University, Lebanon
| | - Sophie Fourmentin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France.
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16
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Lima PSS, Lucchese AM, Araújo-Filho HG, Menezes PP, Araújo AAS, Quintans-Júnior LJ, Quintans JSS. Inclusion of terpenes in cyclodextrins: Preparation, characterization and pharmacological approaches. Carbohydr Polym 2016; 151:965-987. [PMID: 27474645 DOI: 10.1016/j.carbpol.2016.06.040] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Revised: 06/08/2016] [Accepted: 06/09/2016] [Indexed: 12/31/2022]
Abstract
Terpenes constitute the largest class of natural products and are important resources for the pharmaceutical, food and cosmetics industries. However, due to their low water solubility and poor bioavailability there has been a search for compounds that could improve their physicochemical properties. Cyclodextrins (natural and derived) have been proposed for this role and have been complexed with different types of terpenes. This complexation has been demonstrated by using analytical techniques for characterizing complexes such as DSC, NMR, XRD, FTIR, and TGA. The formation of inclusion complexes has been able to improve drug characteristics such as bioavailability, solubility and stability; and to enhance biological activity and efficacy. This review shows strong experimental evidence that cyclodextrins improve the pharmacological properties of terpenes, and therefore need to be recognized as being possible targets for clinical use.
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Affiliation(s)
- Pollyana S S Lima
- Post-Graduate Program in Biotechnology, State University of Feira de Santana, Feira de Santana, BA, Brazil
| | - Angélica M Lucchese
- Post-Graduate Program in Biotechnology, State University of Feira de Santana, Feira de Santana, BA, Brazil
| | - Heitor G Araújo-Filho
- Post-Graduate Program in Health Sciences, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Paula P Menezes
- Post-Graduate Program in Health Sciences, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Adriano A S Araújo
- Post-Graduate Program in Health Sciences, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | | | - Jullyana S S Quintans
- Post-Graduate Program in Health Sciences, Federal University of Sergipe, São Cristóvão, SE, Brazil.
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17
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Development of a Total Organic Carbon method for the quantitative determination of solubility enhancement by cyclodextrins: Application to essential oils. Anal Chim Acta 2016; 918:21-5. [PMID: 27046206 DOI: 10.1016/j.aca.2016.03.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 03/03/2016] [Accepted: 03/07/2016] [Indexed: 11/20/2022]
Abstract
Formation of inclusion complexes with cyclodextrins (CDs) is known to enhance guest solubility in aqueous medium. Different techniques allow determining the evolution in solubility of individual guest compounds. However, examination of mixtures solubility encapsulated in CDs is still a challenge. This is mainly related to the difference in the response of mixture components to the applied technique or to the fact that most of the conventional methods examine the signal of an individual constituent of the mixture. Thus, applying current techniques may not reflect the behavior of the whole mixture. Here, we used for the first time Total Organic Carbon (TOC) analysis to explore and assess the efficiency of 2-hydroxypropyl-β-cyclodextrin (HP-β-CD) to enhance the solubility of natural complex mixtures such as essential oils (EOs). Phase solubility studies were performed for eleven EOs with HP-β-CD. The TOC method has provided good validation parameters for linearity, precision and accuracy. For further validation of the method, phase solubility studies were performed with HP-β-CD for eugenol, as a model EO component. The eugenol solubility was determined by UV-Visible and TOC analyses in order to compare the results. Data obtained from both methods were similar (p < 0.05), thereby proving the effectiveness of the developed TOC method. Finally, the phase solubility diagrams of EOs showed that the solubilizing potential of CD increased proportionally with the decrease in EO intrinsic solubility. Results proved that TOC could be successfully applied to investigate CD/guest inclusion complexes and is expected to have a broad range of applications in the field of mixtures encapsulation.
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