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Singh B, Patnaik C, Bahadur R, Gandhi M, De A, Srivastava R. Synthesis and degradation mechanism of renally excretable gold core-shell nanoparticles for combined photothermal and photodynamic therapy. NANOSCALE 2023; 15:1273-1288. [PMID: 36541678 DOI: 10.1039/d2nr05283k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Photothermal therapy (PTT) has emerged as a very potent therapeutic approach in the treatment of tumors. Gold nanoparticles have gained considerable scientific interest as a photosensitizer due to their absorbance in the near-infrared regions. However, their biodegradation and excretion from the body is a challenge. Various biodegradable systems consisting of liposomes and polymers have been synthesized, but their precise manufacturing and decomposition mechanisms have not yet been explored. Using zein nanoparticles as a template, we have fabricated a glutathione-functionalized gold core shell type of formulation. The scalability of the one-step seedless gold coating process is also reported. The synthesis procedure of these tunable nanoparticles is understood with TEM. The thermal degradation of the material under the physiological conditions is thoroughly examined using UV and TEM. In vitro PTT effectiveness on breast cancer cells is assessed after an extensive in vitro toxicity research. The mechanism of cell death is studied using ROS and cell cycle analysis. The material exhibited good efficacy as a PTT agent in mice and showed non-toxicity up to 14 days. The renal clearance study of the material in mice shows its disintegration into renal clearable minute gold seeds. All the findings suggest biodegradable glutathione-functionalized gold core-shell nanoparticles as potential photothermal cancer treatment agents.
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Affiliation(s)
- Barkha Singh
- Centre for Research in Nano Technology & Science (CRNTS), Indian Institute of Technology, Bombay (IITB), Powai, Mumbai 400076, India.
- Department of Biosciences and Bioengineering (BSBE), Indian Institute of Technology, Bombay (IITB), Powai, Mumbai 400076, India.
| | - Chetna Patnaik
- Molecular Functional Imaging Lab, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India.
| | - Rohan Bahadur
- Department of Biosciences and Bioengineering (BSBE), Indian Institute of Technology, Bombay (IITB), Powai, Mumbai 400076, India.
| | - Mayuri Gandhi
- Centre for Research in Nano Technology & Science (CRNTS), Indian Institute of Technology, Bombay (IITB), Powai, Mumbai 400076, India.
| | - Abhijit De
- Molecular Functional Imaging Lab, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India.
| | - Rohit Srivastava
- Department of Biosciences and Bioengineering (BSBE), Indian Institute of Technology, Bombay (IITB), Powai, Mumbai 400076, India.
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Barakat HS, Freag MS, Gaber SM, Al Oufy A, Abdallah OY. Development of Verapamil Hydrochloride-loaded Biopolymer-based Composite Electrospun Nanofibrous Mats: In vivo Evaluation of Enhanced Burn Wound Healing without Scar Formation. Drug Des Devel Ther 2023; 17:1211-1231. [PMID: 37113467 PMCID: PMC10128156 DOI: 10.2147/dddt.s389329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 03/04/2023] [Indexed: 04/29/2023] Open
Abstract
Introduction Researchers aim for new heights in wound healing to produce wound dressings with unique features. Natural, synthetic, biodegradable, and biocompatible polymers especially in the nanoscale are being employed to support and provide efficient wound management. Economical and environmentally friendly sustainable wound management alternatives are becoming an urgent issue to meet future needs. Nanofibrous mats possess unique properties for ideal wound healing. They mimic the physical structure of the natural extracellular matrix (ECM), promote hemostasis, and gas permeation. Their interconnected nanoporosity prevents wound dehydration and microbial infiltration. Purpose To prepare and evaluate a novel verapamil HCl-loaded environmentally friendly composite, with biopolymer-based electrospun nanofibers suitable for application as wound dressings providing adequate wound healing with no scar formation. Methods Composite nanofibers were prepared by electrospinning of a blend of the natural biocompatible polymers, sodium alginate (SA) or zein (Z) together with polyvinyl alcohol (PVA). Composite nanofibers were characterized in terms of morphology, diameter, drug entrapment efficiency, and release. In vivo study of the therapeutic efficacy of verapamil HCl-loaded nanofibers on a Sprague Dawley rat model with dermal burn wound was investigated in terms of percent wound closure, and presence of scars. Results Combining PVA with SA or Z improved the electrospinnability and properties of the developed nanofibers. Verapamil HCl-loaded composite nanofibers showed good pharmaceutical attributes favorable for wound healing including, fiber diameter ∼150 nm, high entrapment efficiency (∼80-100%) and biphasic controlled drug release for 24 h. In vivo study demonstrated promising potentials for wound healing without scaring. Conclusion The developed nanofibrous mats combined the beneficial properties of the biopolymers and verapamil HCl to provide an increased functionality by exploiting the unique advantages of nanofibers in wound healing at a small dose proved to be insufficient in case of the conventional dosage form.
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Affiliation(s)
- Hebatallah S Barakat
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
- Correspondence: Hebatallah S Barakat, Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, 1 Khartoum Square, Azarita, Messalla Post Office, PO Box 21521, Alexandria, Egypt, Tel +2 01002198334, Email
| | - May S Freag
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Sarah M Gaber
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Affaf Al Oufy
- Department of Material & Manufacturing Engineering, Faculty of Engineering, Galala University, Galala, Egypt
- Department of Textile Engineering, Faculty of Engineering, Alexandria University, Alexandria, Egypt
| | - Ossama Y Abdallah
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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Zhu L, Li X, Song X, Li Q, Zheng F, Li H, Sun J, Huang M, Sun B. Characterization of prolamin recycled from the byproduct of the Baijiu brewing industry (Jiuzao) by SDS-PAGE, multispectral analysis, and morphological analysis. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Coroli A, Romano R, Saccani A, Raddadi N, Mele E, Mascia L. An In-Vitro Evaluation of the Characteristics of Zein-Based Films for the Release of Lactobionic Acid and the Effects of Oleic Acid. Polymers (Basel) 2021; 13:1826. [PMID: 34072945 PMCID: PMC8198277 DOI: 10.3390/polym13111826] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/21/2021] [Accepted: 05/28/2021] [Indexed: 11/17/2022] Open
Abstract
Lactobionic acid (LBA) is widely used in different industrial sectors owing to its biocompatibility characteristics as well as antioxidant and antimicrobial properties. In this study, mixtures of the protein zein with LBA and with the addition of oleic acid (OA) as a ternary system were investigated as drug delivery films for the release of LBA. The chosen combinations exploit the vast difference in water solubility between LBA and the other two components (zein and OA). DSC thermograms and dynamic mechanical spectra, alongside electron microscopy images, were used to describe the microstructural features of the films and were found to provide insights for the release of LBA from the two examined zein-based films immersed in an aqueous physiological solution. For both film systems, a burst release behavior was observed, followed by a rapid and total extraction of LBA. The required immersion time for the total extraction of LBA was greatly reduced when oleic acid was added to the precursor solution mixture for producing the films. The LBA released from the zein-based films was found to exhibit both the expected antioxidant properties as well as exerting bacteriostatic effects towards Escherichia coli and Staphylococcus epidermidis.
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Affiliation(s)
- Alessandro Coroli
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, 40131 Bologna, Italy; (A.C.); (R.R.); (A.S.); (N.R.)
| | - Roberta Romano
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, 40131 Bologna, Italy; (A.C.); (R.R.); (A.S.); (N.R.)
| | - Andrea Saccani
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, 40131 Bologna, Italy; (A.C.); (R.R.); (A.S.); (N.R.)
| | - Noura Raddadi
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, 40131 Bologna, Italy; (A.C.); (R.R.); (A.S.); (N.R.)
| | - Elisa Mele
- Materials Department, Loughborough University, Loughborough LE11 3TU, UK
| | - Leno Mascia
- Materials Department, Loughborough University, Loughborough LE11 3TU, UK
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Akhmetova A, Heinz A. Electrospinning Proteins for Wound Healing Purposes: Opportunities and Challenges. Pharmaceutics 2020; 13:E4. [PMID: 33374930 PMCID: PMC7821923 DOI: 10.3390/pharmaceutics13010004] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/14/2020] [Accepted: 12/18/2020] [Indexed: 01/31/2023] Open
Abstract
With the growth of the aging population worldwide, chronic wounds represent an increasing burden to healthcare systems. Wound healing is complex and not only affected by the patient's physiological conditions, but also by bacterial infections and inflammation, which delay wound closure and re-epithelialization. In recent years, there has been a growing interest for electrospun polymeric wound dressings with fiber diameters in the nano- and micrometer range. Such wound dressings display a number of properties, which support and accelerate wound healing. For instance, they provide physical and mechanical protection, exhibit a high surface area, allow gas exchange, are cytocompatible and biodegradable, resemble the structure of the native extracellular matrix, and deliver antibacterial agents locally into the wound. This review paper gives an overview on cytocompatible and biodegradable fibrous wound dressings obtained by electrospinning proteins and peptides of animal and plant origin in recent years. Focus is placed on the requirements for the fabrication of such drug delivery systems by electrospinning as well as their wound healing properties and therapeutic potential. Moreover, the incorporation of antimicrobial agents into the fibers or their attachment onto the fiber surface as well as their antimicrobial activity are discussed.
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Affiliation(s)
| | - Andrea Heinz
- LEO Foundation Center for Cutaneous Drug Delivery, Department of Pharmacy, University of Copenhagen, 2100 Copenhagen, Denmark;
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Ledari SA, Milani JM, Lanbar FS. Improving gelatin-based emulsion films with cold plasma using different gases. Food Sci Nutr 2020; 8:6487-6496. [PMID: 33312534 PMCID: PMC7723206 DOI: 10.1002/fsn3.1939] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 09/23/2020] [Accepted: 09/27/2020] [Indexed: 11/28/2022] Open
Abstract
In this research, the effects of cold plasma treatment on the properties of gelatin-based emulsion films (GEFs) using different gases were investigated. The gases used include O2, N2, air, Ar, and ethanol-argon (EtOH-Ar). Surface hydrophobicity, morphology, water vapor permeability (WVP), and mechanical, thermal, and antifungal properties after plasma application on the film were analyzed. The results revealed that surface hydrophilicity significantly increased after cold plasma, while the contact angle significantly decreased (p < .05). Furthermore, atomic force microscopy results showed that the argon gas plasma significantly increased roughness of the GEFs surface. Besides, plasma did not decrease WVP. Different gases had no significant effect on the mechanical properties of the GEFs (p > .05). Oxygen permeability after plasma application was significantly different from the control sample; consequently, the permeability after plasma application decreased and the lowest level 55.7 (cm3μm m-2 day-1 Pa-1) was seen for oxygen gas. Plasma treatment caused etching effects and lessened the surface moisture of the polymer film. Antimicrobial activity was observed in the cold plasma-treated samples, especially under air and nitrogen atmosphere. Cold plasma treatment is an effective method for surface modification, expanding the application of emulsion films in the packing industry with improved performance properties.
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Affiliation(s)
- Shahrbanoo Ahmadi Ledari
- Department of Food Science and TechnologySari Agricultural Science and Natural Resources UniversitySariIran
| | - Jafar Mohammadzadeh Milani
- Department of Food Science and TechnologySari Agricultural Science and Natural Resources UniversitySariIran
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Giteru SG, Cridge B, Oey I, Ali A, Altermann E. In-vitro degradation and toxicological assessment of pulsed electric fields crosslinked zein-chitosan-poly(vinyl alcohol) biopolymeric films. Food Chem Toxicol 2020; 135:111048. [DOI: 10.1016/j.fct.2019.111048] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 12/02/2019] [Accepted: 12/06/2019] [Indexed: 12/12/2022]
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Samsi MS, Kamari A, Din SM, Lazar G. Synthesis, characterization and application of gelatin-carboxymethyl cellulose blend films for preservation of cherry tomatoes and grapes. Journal of Food Science and Technology 2019; 56:3099-3108. [PMID: 31205364 DOI: 10.1007/s13197-019-03809-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/11/2019] [Accepted: 05/02/2019] [Indexed: 12/19/2022]
Abstract
In the present study, gelatin-carboxymethyl cellulose blend film was synthesized, characterized and applied for the first time to preserve cherry tomatoes (Solanum lycopersicum var. cerasiforme) and grapes (Vitis vinifera). Gelatin (Gel) film forming solution was incorporated with carboxymethyl cellulose (CMC) at three volume per volume (Gel:CMC) ratios, namely 75:25, 50:50 and 25:75. CMC treatment has improved the transparency, tensile strength (TS), elongation at break (EAB), water vapor permeability and oxygen permeability of gelatin films. A pronounced effect was obtained for 25Gel:75CMC film. The TS and EAB values were increased from 25.98 MPa and 2.34% (100Gel:0CMC) to 37.54 MPa and 4.41% (25Gel:75CMC), respectively. A significant improvement in antimicrobial property of gelatin films against two food pathogens, namely Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) was obtained in the presence of CMC. The effectiveness of gelatin-CMC blend films to extend the shelf life of agricultural products was evaluated in a 14-day preservation study. The gelatin-CMC films were successfully controlled the weight loss and browning index of the fruits up to 50.41% and 31.34%, respectively. Overall, gelatin-CMC film is an environmental friendly film for food preservation.
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Affiliation(s)
- Mimi Syakila Samsi
- 1Department of Chemistry, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjong Malim, Perak Malaysia
| | - Azlan Kamari
- 1Department of Chemistry, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjong Malim, Perak Malaysia
| | | | - Gabriel Lazar
- 3Department of Environmental and Mechanical Engineering, "Vasile Alecsandri" University of Bacau, Calea Marasesti 157, 600115 Bacau, Romania
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Composite edible films and coatings from food-grade biopolymers. Journal of Food Science and Technology 2018; 55:4369-4383. [PMID: 30333633 DOI: 10.1007/s13197-018-3402-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/07/2018] [Accepted: 08/14/2018] [Indexed: 12/11/2022]
Abstract
The development of edible films and coatings from food-grade biopolymers has advanced significantly during the past decade. The current state-of-the-art lies in the formulation of composite edible films and coatings from such biomolecules. Composite films and coatings refer to systems where multiple biopolymers have been combined to achieve beneficial properties. Carbohydrate, protein, and lipids have been preferred for developing such systems. Binary films and coatings have been prepared from multiple combinations including protein-protein, carbohydrate-carbohydrate and protein-carbohydrate. Similarly, ternary films and coatings have been prepared from protein-protein-carbohydrate combinations. In addition, several active ingredients including antimicrobial compounds have been loaded to these systems for the preparation of functional films and coatings. Therefore, the goal of this manuscript is to review the multitude of composite systems that are currently available for food packaging purposes. In addition, we discuss the application of composite coatings to fruits and vegetables, dairy, meat and seafood as model food systems.
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Limchoowong N, Sricharoen P, Konkayan M, Techawongstien S, Chanthai S. A simple, efficient and economic method for obtaining iodate-rich chili pepper based chitosan edible thin film. Journal of Food Science and Technology 2018; 55:3263-3272. [PMID: 30065438 DOI: 10.1007/s13197-018-3260-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 05/11/2018] [Accepted: 05/28/2018] [Indexed: 11/26/2022]
Abstract
The present study was aimed at designing an iodine supplement in form of edible film made of iodate-coated chitosan (CS-IO3). Inclusion of so obtained films in diet can help in preventing thyroid cancer, leading to improved public health. Chili pepper was coated with iodate thin film (1.5 µm). The iodate-rich film is ready-to-eat serving valuable nutrients. Stability studies of CS-IO3 film using water dipping revealed that there was no leaching of iodate ion, due to the strong interactions between cationic amino group of chitosan and iodate ion. The film showed no change in its antioxidant activity. Iodate concentration in the film was determined at 620 nm selectively, based on the decolorization of malachite green economic method. Iodate content in fruits coated with 1.5% (w/v) CS-IO3 was 11.5 mg g-1 of dry film sample. The iodate-rich samples could be stored without much effect on its freshness, indicating a good shelf life.
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Affiliation(s)
- Nunticha Limchoowong
- 1Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, 123 Mittraphab Road, M. 16, T. Ni-Muang, A. Muang, Khon Kaen, 40002 Thailand
| | - Phitchan Sricharoen
- 1Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, 123 Mittraphab Road, M. 16, T. Ni-Muang, A. Muang, Khon Kaen, 40002 Thailand
| | - Mongkol Konkayan
- 1Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, 123 Mittraphab Road, M. 16, T. Ni-Muang, A. Muang, Khon Kaen, 40002 Thailand
| | - Suchila Techawongstien
- 2Department of Plant Science and Agricultural Resources, Faculty of Agriculture, Khon Kaen University, Khon Kaen, 40002 Thailand
| | - Saksit Chanthai
- 1Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, 123 Mittraphab Road, M. 16, T. Ni-Muang, A. Muang, Khon Kaen, 40002 Thailand
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Kaewprachu P, Osako K, Rawdkuen S. Effects of plasticizers on the properties of fish myofibrillar protein film. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2018; 55:3046-3055. [PMID: 30065414 PMCID: PMC6045997 DOI: 10.1007/s13197-018-3226-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/21/2018] [Accepted: 05/10/2018] [Indexed: 10/16/2022]
Abstract
This study investigated the effects of various plasticizer types [glycerol (GLY), sorbitol (SOR), and polyethylene glycol (PEG)] on the properties of fish myofibrillar protein (FMP) film. FMP films plasticized with GLY showed the greatest elongation at break (116.53%). It also showed the greatest water vapor permeability (1.43 × 10-10 g m-1 s-1 Pa-1). The film plasticized with SOR exhibited the highest tensile strength (12.56 MPa) and film solubility (62.59%). PEG plasticized film showed to have yellowish colour as indicated by the high b* value and low light transmission at 280 nm. Furthermore, FMP films containing PEG and SOR possessed lower moisture content than films with GLY. FT-IR and electrophoretic properties were not affected by any types of plasticizer. The appearance of the FMP film was similar to that of the PVC film. It was concluded that plasticizers had major effects on FMP films. They not only plasticize the protein film, but also affected other major film properties.
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Affiliation(s)
- Pimonpan Kaewprachu
- Unit of Innovative Food Packaging and Biomaterials, School of Agro-Industry, Mae Fah Luang University, Muang, Chiang Rai 57100 Thailand
| | - Kazufumi Osako
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, Tokyo, 108-8477 Japan
| | - Saroat Rawdkuen
- Unit of Innovative Food Packaging and Biomaterials, School of Agro-Industry, Mae Fah Luang University, Muang, Chiang Rai 57100 Thailand
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Development of chitosan based optimized edible coating for tomato ( Solanum lycopersicum) and its characterization. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2018; 55:2446-2456. [PMID: 30042560 DOI: 10.1007/s13197-018-3162-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/25/2018] [Accepted: 04/09/2018] [Indexed: 10/14/2022]
Abstract
In the present work experiments were carried out to optimize coating formulation in central composite rotatable design varying chitosan and glycerol concentration from 0.5 to 3% (w/w) and 0 to 3% (w/w) respectively as two independent factors. Total color difference and respiration rate was selected for tomato parameters and water vapor permeability and percentage solubility was selected for coating parameters as response. Quadratic polynomial models generated was adequate to explain the effects of the chitosan and glycerol concentrations on response variables. Experimental validation confirmed the adequacy of the coating formulation for tomato optimized by response surface methodology with 2.15% chitosan and 0.50% glycerol. Characterization of the optimized coating was undertaken in scanning electron microscope, X-ray diffraction (XRD) and Fourier transform infra-red (FTIR) spectroscopy. Microstructure image revealed proper continuity, integrity and surface micro structure of the developed coating. XRD and FTIR spectra revealed the pattern of ideal chitosan based coatings and also unfolded various crystallographic, structural and molecular involvement and couplings in coating properties. XRD pattern reflected semicrystalline structure of chitosan based developed edible coating having crystal form-1 and crystal form-II. In addition to other expected ideal peaks, FTIR also confirmed the presence of water in the coating. Residual acetic acid (solvent for coating formulation) is also evident at around 1700 cm-1 of FTIR spectra, corresponding to carbonyl vibration of the carboxylic acid.
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Edible films developed from carboxylic acid cross-linked sesame protein isolate: barrier, mechanical, thermal, crystalline and morphological properties. Journal of Food Science and Technology 2017; 55:532-539. [PMID: 29391617 DOI: 10.1007/s13197-017-2962-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 10/25/2017] [Accepted: 10/26/2017] [Indexed: 10/18/2022]
Abstract
Films were developed from sesame protein crosslinked with three different carboxylic acids (malic acid, citric acid and succinic acid) at 1, 3 and 5% (w/w, on protein isolate basis). The effect of crosslinking on physical, mechanical, thermal and morphological properties was studied. Succinic acid crosslinked films exhibited least water vapor permeability the highest tensile strength and overall showed superlative properties among other films. X-ray diffraction showed single main crystalline reflection at 20° indicating amorphous structure of films. DSC curves of films indicated single melting peak in the range of 103-161 °C. All films exhibited weight loss in three stages. FTIR exhibited peak at 1700 cm-1 confirming crosslinking reaction between carboxylic acids and protein. Crosslinked films were compact, nonporous and smooth as compared to film from native sesame protein isolate.
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Thakur S, Singh N, Kaur A. Characteristics of normal and waxy corn: physicochemical, protein secondary structure, dough rheology and chapatti making properties. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2017; 54:3285-3296. [PMID: 28974814 PMCID: PMC5602993 DOI: 10.1007/s13197-017-2775-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/03/2017] [Accepted: 07/20/2017] [Indexed: 10/19/2022]
Abstract
The physicochemical, protein secondary structure, dough rheological and chapatti making properties of normal and waxy corn types were evaluated. Waxy corn grains showed the highest L* and b* value, while red-pigmented corn grains had the highest a* value. Higher accumulation of K, Mg, Na and Ca minerals in corn was recorded, while Cu, Mn, Fe and Zn were present in trace. Meal prepared from waxy corn had higher L*, a* and b* values as well as ash, protein and fat content. A significant decrease in various mixograph parameters was observed with increase in water level during dough development. A decrease in dynamic rheological parameters (G', G'' and tan δ) of dough from all corn types was recorded with increase in water level. Dough developed from waxy corn meal had lower G' and G'' as compared to that from normal corn types. FTIR spectra of dough from different corn types at different water levels showed various peaks in amide-I region with most prominent peak at about 1650 cm-1 followed by 1640-1645 and 1610-1620 cm-1 regions. The peak intensities increased with increase in water level which was an indicative of the increase in intermolecular and antiparallel (IM + AP) β-sheet as well as α-helix and β-sheet structures. Dough developed from waxy corn showed change in peak intensities at high moisture level only. The chapatti made from normal (yellow) corn showed higher consumers' acceptability score, while that from waxy corn was poor.
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Affiliation(s)
- Sheetal Thakur
- Department of Food Science and Technology, Guru Nanak Dev University, Amritsar, 143005 India
| | - Narpinder Singh
- Department of Food Science and Technology, Guru Nanak Dev University, Amritsar, 143005 India
| | - Amritpal Kaur
- Department of Food Science and Technology, Guru Nanak Dev University, Amritsar, 143005 India
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Nilsuwan K, Benjakul S, Prodpran T. Influence of palm oil and glycerol on properties of fish skin gelatin-based films. Journal of Food Science and Technology 2016; 53:2715-24. [PMID: 27478227 DOI: 10.1007/s13197-016-2243-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/25/2016] [Accepted: 05/01/2016] [Indexed: 11/28/2022]
Abstract
Properties of fish skin gelatin film incorporated with palm oil at 50 and 75 % (w/w) as affected by glycerol at 0-30 % (w/w) were investigated. Increases in water vapour permeability and elongation at break along with decrease in tensile strength were noticed when levels of glycerol were increased (p < 0.05). Decrease in L*- and a*-values with coincidental increase in b*- and ΔE*-values were observed in emulsified films when amount of palm oil incorporated increased (p < 0.05). Light transmittance of all films increased as glycerol levels were increased (p < 0.05). FTIR results suggested that the protein-protein interaction in film matrix decreased when palm oil was incorporated. Films added with palm oil had lower glass transition and degradation temperatures than control films. The addition of 75 % palm oil and 10 % glycerol improved water vapour barrier property of fish skin gelatin films without drastic alteration of mechanical properties.
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Affiliation(s)
- Krisana Nilsuwan
- Department of Food Technology, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla 90112 Thailand
| | - Soottawat Benjakul
- Department of Food Technology, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla 90112 Thailand
| | - Thummanoon Prodpran
- Department of Material Product Technology, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla 90112 Thailand
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Zhang Y, Cui L, Che X, Zhang H, Shi N, Li C, Chen Y, Kong W. Zein-based films and their usage for controlled delivery: Origin, classes and current landscape. J Control Release 2015; 206:206-19. [DOI: 10.1016/j.jconrel.2015.03.030] [Citation(s) in RCA: 122] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 03/24/2015] [Accepted: 03/25/2015] [Indexed: 12/11/2022]
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Xiao J, Li Y, Li J, Gonzalez AP, Xia Q, Huang Q. Structure, morphology, and assembly behavior of kafirin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:216-24. [PMID: 25510968 PMCID: PMC4298357 DOI: 10.1021/jf504674z] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 12/04/2014] [Accepted: 12/15/2014] [Indexed: 06/04/2023]
Abstract
Prolamins from grains have attracted intensive attention in recent years due to their potential in satisfying the demand for environmentally friendly (biodegradable), abundantly available (sustainable), and cost-effective biomaterials. However, for kafirin, the prolamin from sorghum, its composition, structure, morphology, and self-assembly behaviors have not been fully characterized. In this paper, kafirin was extracted from the whole sorghum grain and found to contain 68, 14, 6, and 12% of α-, β-, and γ-fractions and cross-linked kafirin, respectively. Freeze-dried kafirin contained ∼49% α-helix in the solid state. When dissolved in 65% (v/v) isopropanol, 60% (v/v) tert-butanol, and 85% (v/v) ethanol aqueous solvents, the relative α-helix content in kafirin increased with the decrease of solvent polarity. Structural analysis using small-angle X-ray scattering (SAXS) indicated that kafirin (2 mg/mL) took stretched and extended conformations with dimensions of 118 × 15 × 15 and 100 × 11 × 11 Å in 60% tert-butanol and 65% isopropanol, respectively. More elongated conformation of individual kafirin with high-order assembly was observed in 85% ethanol. Protein aggregation occurred as protein concentration increased in its good solvent. The morphology of kafirin assemblies captured by atomic force microscopy (AFM) revealed that kafirin protein took uniform particle morphology at low concentration, and disk-like or rod-like structures resulting from solvent evaporation induced particle interactions emerged at high concentrations. These results suggest that both protein concentration and solvent polarity can effectively regulate kafirin assemblies from thick rod-like to slim rod-like structures, a convenient way to tune the fibrillation of prolamin-based biomaterials.
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Affiliation(s)
- Jie Xiao
- Department
of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
| | - Yunqi Li
- Key
Laboratory of Low Carbon Chemical Power of Jilin Province, Changchun Institute of Applied Chemistry, Changchun 130022, People’s Republic of China
| | - Ji Li
- Department
of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
| | - Alejandro Perez Gonzalez
- Department
of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
| | - Qiuyang Xia
- Department
of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
| | - Qingrong Huang
- Department
of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
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Han YL, Xu Q, Lu ZQ, Wang JY. Preparation of transparent zein films for cell culture applications. Colloids Surf B Biointerfaces 2014; 120:55-62. [DOI: 10.1016/j.colsurfb.2014.04.019] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Revised: 04/01/2014] [Accepted: 04/16/2014] [Indexed: 10/25/2022]
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Pankaj SK, Bueno-Ferrer C, Misra NN, Bourke P, Cullen PJ. Zein film: Effects of dielectric barrier discharge atmospheric cold plasma. J Appl Polym Sci 2014. [DOI: 10.1002/app.40803] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- S. K. Pankaj
- BioPlasma Research Group, School of Food Science and Environmental Health; Dublin Institute of Technology; Cathal Brugha Street Dublin 1 Ireland
| | - Carmen Bueno-Ferrer
- BioPlasma Research Group, School of Food Science and Environmental Health; Dublin Institute of Technology; Cathal Brugha Street Dublin 1 Ireland
| | - N. N. Misra
- BioPlasma Research Group, School of Food Science and Environmental Health; Dublin Institute of Technology; Cathal Brugha Street Dublin 1 Ireland
| | - Paula Bourke
- BioPlasma Research Group, School of Food Science and Environmental Health; Dublin Institute of Technology; Cathal Brugha Street Dublin 1 Ireland
| | - P. J. Cullen
- BioPlasma Research Group, School of Food Science and Environmental Health; Dublin Institute of Technology; Cathal Brugha Street Dublin 1 Ireland
- School of Chemical Engineering; UNSW Australia; Sydney New South Wales 2052 Australia
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Singh N, Georget DM, Belton PS, Barker SA. Physical properties of zein films containing salicylic acid and acetyl salicylic acid. J Cereal Sci 2010. [DOI: 10.1016/j.jcs.2010.06.008] [Citation(s) in RCA: 25] [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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Kanjanapongkul K, Wongsasulak S, Yoovidhya T. Investigation and prevention of clogging during electrospinning of zein solution. J Appl Polym Sci 2010. [DOI: 10.1002/app.32499] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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