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Fanwa MN, Malhiac C, Hucher N, Cheumani AMY, Ndikontar MK, Grisel M. Triumfetta cordifolia Gum as a Promising Bio-Ingredient to Stabilize Emulsions with Potentials in Cosmetics. Polymers (Basel) 2023; 15:2828. [PMID: 37447474 DOI: 10.3390/polym15132828] [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: 06/13/2023] [Revised: 06/23/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023] Open
Abstract
The cosmetics industry is searching for efficient and sustainable substances capable of stabilizing emulsions or colloidal dispersions that are thermodynamically unstable because of their high surface energy. Therefore, surfactants are commonly used to stabilize the water/oil interface. However, the presence of a surfactant is not always sufficient to obtain stable emulsions on the one hand, and conventional surfactants are often subject to such controversies as their petroleum origin and environmental concerns on the other hand. As a consequence, among other challenges, it is obvious that research related to new-natural, biodegradable, biocompatible, available, competitive-surfactants are nowadays more intensive. This study aims to valorize a natural gum from Triumfetta cordifolia (T. cordifolia) as a sustainable emulsifier and stabilizer for oil-in-water (O/W) emulsions, and to evaluate how the nature of the fatty phase could affect this potential. To this end, O/W emulsions were prepared at room temperature using three different oils varying in composition, using a rotor-stator mixer. Resulting mixtures were characterized using optical microscopy, laser granulometry, rheology, pH and stability monitoring over time. The results demonstrated good potential for the gum as an emulsifying agent. T. cordifolia gum appears efficient even at very low concentrations (0.2% w/w) for the preparation and stabilization of the different O/W emulsions. The best results were observed for cocoglyceride oil due to its stronger effect of lowering interfacial tension (IFT) thus acting as a co-emulsifier. Therefore, overall results showed that T. cordifolia gum is undoubtedly a highly promising new bio-sourced and environmentally friendly emulsifier/stabilizer for many applications including cosmetics.
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Affiliation(s)
- Michèle N Fanwa
- Université Le Havre Normandie, Normandie Univ, URCOM UR 3221, F-76600 Le Havre, France
- Research Unit for Macromolecular Chemistry, Laboratory of Applied Inorganic Chemistry, Faculty of Science, University of Yaounde I, Yaounde P.O. Box 812, Cameroon
| | - Catherine Malhiac
- Université Le Havre Normandie, Normandie Univ, URCOM UR 3221, F-76600 Le Havre, France
| | - Nicolas Hucher
- Université Le Havre Normandie, Normandie Univ, URCOM UR 3221, F-76600 Le Havre, France
| | - Arnaud M Y Cheumani
- Research Unit for Macromolecular Chemistry, Laboratory of Applied Inorganic Chemistry, Faculty of Science, University of Yaounde I, Yaounde P.O. Box 812, Cameroon
| | - Maurice K Ndikontar
- Research Unit for Macromolecular Chemistry, Laboratory of Applied Inorganic Chemistry, Faculty of Science, University of Yaounde I, Yaounde P.O. Box 812, Cameroon
| | - Michel Grisel
- Université Le Havre Normandie, Normandie Univ, URCOM UR 3221, F-76600 Le Havre, France
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Davarzani H, Philippe N, Cochennec M, Colombano S, Dierick M, Ataie-Ashtiani B, Klein PY, Marcoux M. Numerical simulations of high viscosity DNAPL recovery in highly permeable porous media under isothermal and non-isothermal conditions. JOURNAL OF CONTAMINANT HYDROLOGY 2022; 251:104073. [PMID: 36137463 DOI: 10.1016/j.jconhyd.2022.104073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
We developed a decimetric size model based on coupling generalized Darcy's law and heat-transfer equations to model viscous dense non-aqueous phase liquid (DNAPL) pumping through highly permeable porous media under non-isothermal conditions. The presence of fingering and non-wetting phase ganglia was modeled through an unsteady capillary diffusion coefficient and an arbitrary heterogeneous permeability field. The model was validated using existing experimental data of a simple case, an oil injection in a 2D tank packed with glass beads. Next, we compared the results of this model against a DNAPL extracting situation in the 2D tank to better understand the two-phase flow behavior in highly permeable porous media. We found that natural convection during heating plays an essential role in heat transfer, especially in the wetting phase zone. By adding the dynamic effect (unsteady conditions) we were better able to describe the presence of the ganglia in porous media. We observed good agreement between modeled and experimental oil saturation curves until the breakthrough point, with a mean relative error of about 10% for low and high flow rates, and 8% and 16% after breakthrough for low and high flow rates, respectively. Extracting viscous oil at low flow rates and high temperature generates less fingering and is well described by the generalized Darcy's law. The remobilization of residual non-wetting ganglia after the breakthrough point at the outlet is, however, difficult to simulate using the generalized Darcy's law. In the end, we treated this issue by using a perturbed permeability field to simulate the observed fingering in the 2D tank.
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Affiliation(s)
- Hossein Davarzani
- BRGM (French Geological Survey), 3 avenue Claude Guillemin, 45100 Orléans, France.
| | - Nicolas Philippe
- BRGM (French Geological Survey), 3 avenue Claude Guillemin, 45100 Orléans, France; REMEA, 22-24 rue Lavoisier, 92000 Nanterre, France
| | - Maxime Cochennec
- BRGM (French Geological Survey), 3 avenue Claude Guillemin, 45100 Orléans, France
| | - Stéfan Colombano
- BRGM (French Geological Survey), 3 avenue Claude Guillemin, 45100 Orléans, France
| | | | | | | | - Manuel Marcoux
- Institut de Mécanique des Fluides de Toulouse (IMFT), Université de Toulouse, CNRS, 31400 Toulouse, France
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3
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Supercooling phenomena in protein based food matrix composed of various fat, salt, and water contents. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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4
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Wanatasanappan VV, Rezman M, Abdullah MZ. Thermophysical Properties of Vegetable Oil-Based Hybrid Nanofluids Containing Al 2O 3-TiO 2 Nanoparticles as Insulation Oil for Power Transformers. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3621. [PMID: 36296811 PMCID: PMC9608685 DOI: 10.3390/nano12203621] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
The massive demand in the electrical power sector has resulted in a large demand for reliable, cost efficient, and environmentally friendly insulation oil to reduce the dependency on mineral oil. The hybridization of nanoparticles in vegetable oil is a novel method to enhance the thermal properties of vegetable oil. This study focuses on the experimental investigation of the thermophysical properties of coconut oil, soybean oil, and palm oil-based hybrid nanofluids suspended with Al2O3-TiO2 nanoparticles at a mass concentration of 0.2, 0.4, and 0.6%. The ratio between Al2O3 and TiO2 nanoparticles was maintained constant at 50:50. The main purpose of the study is to evaluate the thermal conductivity, dynamic viscosity, and density of different vegetable base oils suspended with Al2O3-TiO2 in the temperature range of 30 to 60 °C. The influence of temperature on the augmentation of thermophysical properties for different vegetable oil-based hybrid nanofluids is investigated experimentally. The experimental results for thermal conductivity for the three types of base fluids show that the effect of nanoparticle mass concentration in thermal conductivity enhancement is less significant for temperatures more than 50 °C. The palm oil with a 0.6% Al2O3-TiO2 nanoparticle concentration exhibited the highest thermal conductivity with a 27.5% thermal conductivity enhancement relative to the base oil. The effect of nanofluid temperature on density and viscosity augmentation is more distinct compared with the impact of Al2O3-TiO2 nanoparticles concentrations. Among all three types of hybrid nanofluids, palm oil based nanofluids were found to have superior thermophysical properties compared with coconut oil and soybean oil, with the highest thermal conductivity of 0.628 W/m·k and lowest viscosity of 17.772 mPa·s.
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Affiliation(s)
| | - Munirah Rezman
- College of Engineering, Universiti Tenaga Nasional, Kampus Putrajaya, Kajang 43000, Malaysia
| | - Mohd Zulkifly Abdullah
- School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, Pulau Pinang 14300, Malaysia
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5
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Paredes X, Liñeira del Río JM, Gonçalves DEP, Guimarey MJG, Comuñas MJP, Seabra JHO, Fernández J. Thermophysical and Tribological Properties of Highly Viscous Biolubricants. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xavier Paredes
- Laboratory of Thermophysical and Tribological Properties, NaFoMat Group, Department of Applied Physics, Faculty of Physics and Institute of Materials (iMATUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
- TERMOCAL Research Group, Research Institute on Bioeconomy, Escuela de Ingenierías Industriales, Universidad de Valladolid, Paseo del Cauce 59, Valladolid 47011, Spain
| | - José M. Liñeira del Río
- Laboratory of Thermophysical and Tribological Properties, NaFoMat Group, Department of Applied Physics, Faculty of Physics and Institute of Materials (iMATUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
- INEGI, Universidade do Porto, Faculdade de Engenharia, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - David E. P. Gonçalves
- INEGI, Universidade do Porto, Faculdade de Engenharia, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - María J. G. Guimarey
- Laboratory of Thermophysical and Tribological Properties, NaFoMat Group, Department of Applied Physics, Faculty of Physics and Institute of Materials (iMATUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Department of Design and Engineering, Faculty of Science & Technology, Bournemouth University, Talbot Campus, Poole BH12 5BB, United Kingdom
| | - María J. P. Comuñas
- Laboratory of Thermophysical and Tribological Properties, NaFoMat Group, Department of Applied Physics, Faculty of Physics and Institute of Materials (iMATUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Jorge H. O. Seabra
- FEUP, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Josefa Fernández
- Laboratory of Thermophysical and Tribological Properties, NaFoMat Group, Department of Applied Physics, Faculty of Physics and Institute of Materials (iMATUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
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6
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Ghaderi A, Dehghannya J, Ghanbarzadeh B. Multiphase flow, heat and mass transfer modeling during frying of potato: effect of food sample to oil ratio. INTERNATIONAL JOURNAL OF FOOD ENGINEERING 2022. [DOI: 10.1515/ijfe-2021-0343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Sample to oil ratio (SOR) during frying of food products should be carefully determined because it substantially influences oil absorption. A novel computer simulation to model momentum, heat, and mass transfer was developed to investigate the effect of SOR (1/10, 1/15, and 1/20) on velocity, temperature, moisture, and oil distributions during frying of potato strips. The present study was intended to cover missing aspects in scientific literature dealing with potato frying modeling. In addition, one of the major contributions offered by this work regarded the possibility of major effect of SOR on healthiness of products. An increase in water vapor production at a higher SOR played a significant role in increasing oil velocity. While the SOR did not have a substantial effect on center temperature of potato strips, surface temperature decreased with an increase in SOR. The SOR affected moisture content of the corners of the specimens, whereas it did not significantly affect the center moisture. Simulation of the longitudinal section of potato center showed that oil uptake increased with increasing SOR. The decrease in oil uptake by decreasing SOR was justified by the water vapor production and crust formation. Water vapor acted as a barrier against oil diffusion and had a significant impact on stirring the oil and creating homogeneous temperatures. Overall, this study offered a proper numerical tool to control oil absorption, leading to understanding complex mechanisms during deep-fat frying of foods. It is hoped that the results of this study could head to a further step in developing an optimized deep-fat frying process.
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Affiliation(s)
- Abdurrahman Ghaderi
- Department of Food Science and Technology , University of Tabriz , Tabriz 51666-16471 , Iran
- Department of Food Science and Technology , University of Kurdistan , Sanandaj 66177-15175 , Iran
| | - Jalal Dehghannya
- Department of Food Science and Technology , University of Tabriz , Tabriz 51666-16471 , Iran
| | - Babak Ghanbarzadeh
- Department of Food Science and Technology , University of Tabriz , Tabriz 51666-16471 , Iran
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Chavez-Angel E, Puertas B, Kreuzer M, Soliva Fortuny R, Ng RC, Castro-Alvarez A, Sotomayor Torres CM. Spectroscopic and Thermal Characterization of Extra Virgin Olive Oil Adulterated with Edible Oils. Foods 2022; 11:foods11091304. [PMID: 35564027 PMCID: PMC9100626 DOI: 10.3390/foods11091304] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 04/28/2022] [Accepted: 04/28/2022] [Indexed: 01/27/2023] Open
Abstract
The substitution of extra virgin olive oil with other edible oils is the primary method for fraud in the olive-oil industry. Developing inexpensive analytical methods for confirming the quality and authenticity of olive oils is a major strategy towards combatting food fraud. Current methods used to detect such adulterations require complicated time- and resource-intensive preparation steps. In this work, a comparative study incorporating Raman and infrared spectroscopies, photoluminescence, and thermal-conductivity measurements of different sets of adulterated olive oils is presented. The potential of each characterization technique to detect traces of adulteration in extra virgin olive oils is evaluated. Concentrations of adulterant on the order of 5% can be detected in the Raman, infrared, and photoluminescence spectra. Small changes in thermal conductivity were also found for varying amounts of adulterants. While each of these techniques may individually be unable to identify impurity adulterants, the combination of these techniques together provides a holistic approach to validate the purity and authenticity of olive oils.
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Affiliation(s)
- Emigdio Chavez-Angel
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain; (R.C.N.); (C.M.S.T.)
- Correspondence: (E.C.-A.); (A.C.-A.)
| | - Blanca Puertas
- Departamento de Calidad, Döehler Fraga, Member of Döehler Group, Collidors S/N, 22520 Fraga, Spain;
| | - Martin Kreuzer
- ALBA Synchrotron Light Source Experiment Division—MIRAS Beamline Cerdanyola del Valles, 08290 Barcelona, Spain;
| | - Robert Soliva Fortuny
- Agrotecnio-CeRCA Center, Department of Food Technology, University of Lleida, 25198 Lleida, Spain;
| | - Ryan C. Ng
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain; (R.C.N.); (C.M.S.T.)
| | - Alejandro Castro-Alvarez
- Centro de Excelencia en Medicina Traslacional, Laboratorio de Bioproductos Farmacéuticos y Cosméticos, Facultad de Medicina, Universidad de La Frontera, Av. Francisco Salazar 01145, Temuco 4780000, Chile
- Correspondence: (E.C.-A.); (A.C.-A.)
| | - Clivia M. Sotomayor Torres
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain; (R.C.N.); (C.M.S.T.)
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
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8
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Silva CA, Saraiva SV, Bonetti D, Higuti RT, Cunha RL, Pereira LO, Silva FV, Fileti AM. Measurements of bimodal droplet size distribution of emulsions using ultrasonic spectroscopy in the long and intermediate wavelength regimes. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117274] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Dan L, Zhang K, Huang Z, Wang F, Wang Q, Li J. Molecular-level evaluation of ionic transport under external electric fields in biological dielectric liquids. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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10
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Ground Tire Rubber Filled Flexible Polyurethane Foam-Effect of Waste Rubber Treatment on Composite Performance. MATERIALS 2021; 14:ma14143807. [PMID: 34300726 PMCID: PMC8304020 DOI: 10.3390/ma14143807] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/24/2021] [Accepted: 07/06/2021] [Indexed: 12/16/2022]
Abstract
The application range of flexible polyurethane (PU) foams is comprehensive because of their versatility and flexibility in adjusting structure and performance. In addition to the investigations associated with further broadening of their potential properties, researchers are looking for new raw materials, beneficially originated from renewable resources or recycling. A great example of such a material is ground tire rubber (GTR)—the product of the material recycling of post-consumer car tires. To fully exploit the benefits of this material, it should be modified to enhance the interfacial interactions between PU and GTR. In the presented work, GTR particles were thermo-mechanically modified with the addition of fresh and waste rapeseed oil in the reactive extrusion process. The introduction of modified GTR particles into a flexible PU matrix caused a beneficial 17–28% decrease in average cell diameters. Such an effect caused an even 5% drop in thermal conductivity coefficient values, enhancing thermal insulation performance. The application of waste oil resulted in the superior mechanical performance of composites compared to the fresh one and thermo-mechanical modification without oils. The compressive and tensile performance of composites filled with waste oil-modified GTR was almost the same as for the unfilled foam. Moreover, the introduction of ground tire rubber particles enhanced the thermal stability of neat polyurethane foam.
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11
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Fard‐Zolfaghari G, Abbasian A, Razzaghi‐Kashani M. Insights into the compatibility of vegetable‐based plasticizers on the performance of filled rubber vulcanizates. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Golrokh Fard‐Zolfaghari
- Department of Polymer Engineering, Petroleum and Chemical Engineering Faculty, Science and Research branch Islamic Azad University Tehran Iran
| | - Ali Abbasian
- Department of Polymer Engineering, Petroleum and Chemical Engineering Faculty, Science and Research branch Islamic Azad University Tehran Iran
| | - Mehdi Razzaghi‐Kashani
- Polymer Engineering Department, Faculty of Chemical Engineering Tarbiat Modares University Tehran Iran
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12
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Silva CA, Saraiva SV, Bonetti D, Higuti RT, Cunha RL, Pereira LO, Silva FV, Fileti AM. Application of acoustic models for polydisperse emulsion characterization using ultrasonic spectroscopy in the long wavelength regime. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125062] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Kushwaha N, Kumawat TC, Nigam KDP, Kumar V. Heat Transfer and Fluid Flow Characteristics for Newtonian and Non-Newtonian Fluids in a Tube-in-Tube Helical Coil Heat Exchanger. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b07044] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Naveen Kushwaha
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Uttarakhand 247667, India
| | - Tara Chand Kumawat
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Uttarakhand 247667, India
| | | | - Vimal Kumar
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Uttarakhand 247667, India
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14
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Sappati PK, Nayak B, VanWalsum GP. Thermophysical properties prediction of brown seaweed (Saccharina latissima) using artificial neural networks (ANNs) and empirical models. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2019. [DOI: 10.1080/10942912.2019.1691588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Praveen Kumar Sappati
- Food Science and Human Nutrition, School of Food and Agriculture, University of Maine, Orono, ME, USA
| | - Balunkeswar Nayak
- Food Science and Human Nutrition, School of Food and Agriculture, University of Maine, Orono, ME, USA
| | - G. Peter VanWalsum
- Chemical and Biomedical Engineering, University of Maine, Orono, ME, USA
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15
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Zhang D, Zhang X, Li Y, Wang S, Wang X, Jiang Z. Incorporation of Ce 3+ ions into dodecatungstophosphoric acid for the production of biodiesel from waste cooking oil. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:922-931. [PMID: 30184822 DOI: 10.1016/j.msec.2018.07.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 06/22/2018] [Accepted: 07/18/2018] [Indexed: 10/28/2022]
Abstract
A series of cerium-exchanged dodecatungstophosphates CexH3-3xPW12O40 (CexH3-3xPW, x = 0.4, 0.6, 0.7, 0.8, 0.9, and 1.0) were designed and characterized by Fourier transform infrared spectroscopy (FT-IR), pyridine adsorption IR spectra, X-ray diffraction (XRD), and temperature programmed desorption of ammonia (NH3-TPD). The activity of these catalysts was evaluated for the generation of biodiesel from waste cooking oil (WCO) with 27 wt% of free fatty acids (FFAs) and 1 wt% of water. Compared to theri parent H3PW12O40, CexH3-3xPW showed higher activity for esterification of FFAs and transesterification of triglyceride to mono-alkyl esters of fatty acids (FAMEs) in one-pot. The acidic properties of CexH3-3xPW depended on the amount of Ce3+ ions in the secondary structure of Keggin heteropolyacids, while conversion of triglycerides and FFAs depended on their increasing acid contents. Among CexH3-3xPW, Ce0.7H0.9PW showed significant activity due to its high Brønsted acidity and Lewis acidity with 98% conversion of WCO and almost 100% selectivity to FAME at the molar ratio of methanol to WCO = 21:1 and 65 °C for 12 h. The reaction adhered to first-order kinetics with the activation energy (Ea) of 71 kJ/mol and the frequency factor (A) of 1.8 × 108 min-1, while the reaction rates were not influenced by the internal mass transport. The catalyst behaved as a heterogeneous catalyst, which can achieve the regeneration and be used more than five runs but without obvious decrease in activity. The characteristics of the WCO methyl ester were found to be close to the engine requirement.
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Affiliation(s)
- Dan Zhang
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Northeast Normal University, Changchun, 130024, People's Republic of China
| | - Xueyan Zhang
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Northeast Normal University, Changchun, 130024, People's Republic of China
| | - Yiming Li
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Northeast Normal University, Changchun, 130024, People's Republic of China
| | - Shengtian Wang
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Northeast Normal University, Changchun, 130024, People's Republic of China
| | - Xiaohong Wang
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Northeast Normal University, Changchun, 130024, People's Republic of China.
| | - Zijiang Jiang
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, National Analytical Research Center of Electrochemistry and Spectroscopy, Changchun, 130022, People's Republic of China.
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16
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3D computational simulation for the prediction of coupled momentum, heat and mass transfer during deep-fat frying of potato strips coated with different concentrations of alginate. J FOOD ENG 2018. [DOI: 10.1016/j.jfoodeng.2018.04.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Phinney DM, Frelka JC, Heldman DR. Composition-Based Prediction of Temperature-Dependent Thermophysical Food Properties: Reevaluating Component Groups and Prediction Models. J Food Sci 2016; 82:6-15. [DOI: 10.1111/1750-3841.13564] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 08/23/2016] [Accepted: 10/21/2016] [Indexed: 02/05/2023]
Affiliation(s)
- David Martin Phinney
- Food Science and Technology Dept; The Ohio State Univ; 2015 Fyffe Ct. Columbus OH 43210 U.S.A
| | - John C. Frelka
- Food Science and Technology Dept; The Ohio State Univ; 2015 Fyffe Ct. Columbus OH 43210 U.S.A
| | - Dennis Ray Heldman
- Food Science and Technology Dept; The Ohio State Univ; 2015 Fyffe Ct. Columbus OH 43210 U.S.A
- Dept. of Food, Agriculture, and Biological Engineering; The Ohio State Univ; 2015 Fyffe Ct. Columbus OH 43210 U.S.A
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18
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Boldrini DE, Damiani DE, Tonetto GM. Mathematical modeling of the partial hydrogenation of vegetable oil in a monolithic stirrer reactor. AIChE J 2014. [DOI: 10.1002/aic.14539] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Diego E. Boldrini
- PLAPIQUI (UNS-CONICET); Camino “La Carrindanga” Km 7, CC 717, CP 8000 Bahía Blanca Argentina
| | - Daniel E. Damiani
- PLAPIQUI (UNS-CONICET); Camino “La Carrindanga” Km 7, CC 717, CP 8000 Bahía Blanca Argentina
| | - Gabriela M. Tonetto
- PLAPIQUI (UNS-CONICET); Camino “La Carrindanga” Km 7, CC 717, CP 8000 Bahía Blanca Argentina
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