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Rosalina R, Kamwilaisak K, Sutthanut K, Srisongkram T, Weerapreeyakul N. Probing the stability and quality of the cellulose-based Pickering emulsion containing sesamolin-enriched sesame oil by chemometrics-assisted ATR-FTIR spectroscopy. Food Chem 2024; 452:139555. [PMID: 38728896 DOI: 10.1016/j.foodchem.2024.139555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/19/2024] [Accepted: 05/01/2024] [Indexed: 05/12/2024]
Abstract
This study presents the employment of Fourier transform infrared (FTIR) spectroscopy with attenuated total reflection and principal component analysis (PCA) to analyze the stability of a Pickering emulsion stabilized by carboxylated-cellulose nanocrystal (cCNC) comprising sesame oil phases with or without sesamolin. FTIR measurements identified an intermolecular hydrogen bond between the ester group of the triglyceride and the carboxyl group of the cCNC to create the emulsion droplet. The spectral bands from the hydroxyl group vibration (3700-3050 cm-1), carbonyl (1744 cm-1), CO groups of the ester triglyceride and cCNC (1160-998 cm-1) markedly discriminated between stabilized and destabilized emulsions. The PCA of FTIR spectra detected the change of molecular interaction during storage according to creaming, aggregation, and coalescence and changes in physicochemical parameters such as droplet size, refractive index, and zeta potential. Hence, PCA enabled the observation of the destabilization of emulsion in real-time.
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Affiliation(s)
- Reny Rosalina
- Graduate School (Biomedical Sciences Program), Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; Human High Performance and Health Promotion Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Khanita Kamwilaisak
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Khaetthareeya Sutthanut
- Human High Performance and Health Promotion Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand; Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Tarapong Srisongkram
- Human High Performance and Health Promotion Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand; Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Natthida Weerapreeyakul
- Human High Performance and Health Promotion Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand; Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand.
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Mínguez-García D, Díaz-García P, Gisbert-Payá J, Bonet-Aracil M. Emulsion Nanofibres as a Composite for a Textile Touch Sensor. Polymers (Basel) 2023; 15:3903. [PMID: 37835951 PMCID: PMC10574931 DOI: 10.3390/polym15193903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
The combination of a nanofibre net and textile support represents an interesting composite capable of conferring various properties. Nanofibres are so thin that they can be easily damaged by human touch. In this study, we hypothesised that dyeing nanofibres with different colours from their textile supports would result in a colour difference upon their degradation, providing evidence that the composite has been touched and acting as a touch sensor. Two different methods were studied: directly inserting the dye into the polymer via electrospinning or creating a coloured liquid emulsion encapsulated by the polymer via electrospinning. Two black dyes were studied. Colour index (CI) Acid Black 194 was added directly to polyvinyl alcohol (PVA) as the polymer. Sage oil was used for CI Solvent Black 3. The nanofibre nets were conveniently electrospun on a white polyester fabric; the fabrics were then characterised by colour coordinate analysis, FTIR, and SEM. The results showed that the dyed solution in oil was encapsulated, and the black colour could only be observed when rubbed, whereas the dyed polymer showed a black colour that was removed when rubbed. Therefore, the hypothesis was confirmed, and both samples demonstrated the desired touch sensor behaviour.
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Affiliation(s)
| | | | | | - Marilés Bonet-Aracil
- Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, 03801 Alcoy, Spain; (D.M.-G.); (P.D.-G.); (J.G.-P.)
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Mínguez-García D, Breve N, Capablanca L, Bonet-Aracil M, Díaz-García P, Gisbert-Payá J. Liquid Oil Trapped inside PVA Electrospun Microcapsules. Polymers (Basel) 2022; 14:polym14235242. [PMID: 36501636 PMCID: PMC9737610 DOI: 10.3390/polym14235242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 11/27/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
Electrospinning makes it possible to obtain solid fibers, in addition to core-shell fibers, using coextrusion. However, an exhaustive control of parameters allows the core-shell fibers from emulsion electrospinning to be obtained. The solvent in the outer surface tends to evaporate and the polymer density increases, moving the emulsion drops towards the center, which in turn promotes coalescence, thus creating the core. The aim of this work was to avoid coalescence and obtain a net of nanofibers entrapping oil microcapsules. We obtained an emulsion oil in water (O/W), with polyvinyl alcohol (W) and two essential oils (O), sage and thyme. An electrospinning process was used to place the microcapsules of oil inside a net of nanofibers. The electrospun veil was characterized by organoleptic testing, SEM microscopy, FTIR spectroscopy, DSC thermal analysis, and pressure tests. Organoleptic testing, FTIR spectroscopy, and DSC thermal analysis demonstrated the presence of the oil, which was retained in the spheres observed by SEM microscopy, while pressure tests revealed that the oil remained in a liquid state. Furthermore, we demonstrated a strong relationship between the emulsion size and the final microcapsules created, which are slightly larger due to the shell formation. The size of the emulsion determines whether the spheres will be independent or embedded in the nanofibers. Furthermore, the nanofiber diameter was considerably reduced compared to the nanofibers without the oil.
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Affiliation(s)
- David Mínguez-García
- Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, 03801 Alcoy, Spain
| | - Noel Breve
- Centre for Textile Science and Engineering, Univeristeit Gent, 9000 Gent, Belgium
| | - Lucía Capablanca
- Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, 03801 Alcoy, Spain
| | - Marilés Bonet-Aracil
- Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, 03801 Alcoy, Spain
- Correspondence: ; Tel.: +34-966528470
| | - Pablo Díaz-García
- Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, 03801 Alcoy, Spain
| | - Jaime Gisbert-Payá
- Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, 03801 Alcoy, Spain
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Macchia A, Aureli H, Prestileo F, Ortenzi F, Sellathurai S, Docci A, Cerafogli E, Colasanti IA, Ricca M, La Russa MF. In-Situ Comparative Study of Eucalyptus, Basil, Cloves, Thyme, Pine Tree, and Tea Tree Essential Oil Biocide Efficacy. Methods Protoc 2022; 5:mps5030037. [PMID: 35645345 PMCID: PMC9149846 DOI: 10.3390/mps5030037] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/12/2022] [Accepted: 04/21/2022] [Indexed: 11/20/2022] Open
Abstract
Bio-colonization is a dynamic and multiphasic process headed by microorganisms. Conventional treatments to process affected stone materials include chemical biocides, whose formulations are mainly composed of quaternary ammonium salts(QAs), reported to be toxic for human health, dangerous for the environment, and not biodegradable. Accordingly, novel green and eco-friendly products are a promising alternative to treat stone materials deteriorated by microorganism colonization. In this study, the efficacy of pure essential oils (EOs) and a mix of EOs was assessed in situ and compared to a conventional biocide based on QAs, and two commercially green products based on EOs, which were taken as references, through application on a mosaic located at the Archaeological Park of Ostia Antica (Rome). The EO biocide efficacy was analyzed by ultraviolet induced luminescence, spectro-colorimetry and bio-luminometry analyses while the possibility of their permanence on simulated substrate was studied by FTIR spectroscopy. It was observed by FTIR analysis, that EOs considered volatile can leave a residue after the application; typical fingerprint bands at about 2926, 1510, and 1455 cm−1 were recorded in the EO spectra. Every tested oil was confirmed to have a biocide action although minimal in relation to the most conventional products based on QAs. The synergy of the essential oils revealed positive results, showing a stronger biocide efficacy. Further investigation should be carried out to develop the method of application and study of essential oils on cultural heritage.
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Affiliation(s)
- Andrea Macchia
- YOCOCU, Youth in Conservation of Cultural Heritage, Via T. Tasso 108, 00185 Rome, Italy; (A.M.); (S.S.); (E.C.); (I.A.C.)
| | - Hélène Aureli
- YOCOCU, Youth in Conservation of Cultural Heritage, Via T. Tasso 108, 00185 Rome, Italy; (A.M.); (S.S.); (E.C.); (I.A.C.)
- Correspondence:
| | - Fernanda Prestileo
- National Research Council of Italy, Institute of Atmospheric Sciences and Climate (CNR-ISAC), Via Fosso del Cavaliere 100, 00133 Rome, Italy;
| | - Federico Ortenzi
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica snc, 00133 Rome, Italy;
| | - Shaila Sellathurai
- YOCOCU, Youth in Conservation of Cultural Heritage, Via T. Tasso 108, 00185 Rome, Italy; (A.M.); (S.S.); (E.C.); (I.A.C.)
| | - Antonella Docci
- Archaeological Park of Ostia Antica, Via dei Romagnoli 717, 00119 Rome, Italy;
| | - Eleonora Cerafogli
- YOCOCU, Youth in Conservation of Cultural Heritage, Via T. Tasso 108, 00185 Rome, Italy; (A.M.); (S.S.); (E.C.); (I.A.C.)
| | - Irene Angela Colasanti
- YOCOCU, Youth in Conservation of Cultural Heritage, Via T. Tasso 108, 00185 Rome, Italy; (A.M.); (S.S.); (E.C.); (I.A.C.)
| | - Michela Ricca
- Department of Biology, Ecology and Earth Science DIBEST, University of Calabria, Via Pietro Bucci, 87036 Arcavacata di Rende, Italy; (M.R.); (M.F.L.R.)
| | - Mauro Francesco La Russa
- Department of Biology, Ecology and Earth Science DIBEST, University of Calabria, Via Pietro Bucci, 87036 Arcavacata di Rende, Italy; (M.R.); (M.F.L.R.)
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