1
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Shlosman K, Rein DM, Shemesh R, Cohen Y. Lyophilized Emulsions of Thymol and Eugenol Essential Oils Encapsulated in Cellulose. Polymers (Basel) 2024; 16:1422. [PMID: 38794616 PMCID: PMC11125086 DOI: 10.3390/polym16101422] [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: 04/17/2024] [Revised: 05/09/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
Efforts to tap into the broad antimicrobial, insecticidal, and antioxidant activities of essential oils (EOs) are limited due to their strong odor and susceptibility to light and oxidation. Encapsulation of EOs and subsequent drying overcome these limitations and extend their applications. This study characterized freeze-dried (lyophilized) emulsions of eugenol (EU) and thymol (TY) EOs, encapsulated by chemically unmodified cellulose, a sustainable and low-cost resource. High-resolution scanning electron microscopy showed successful lyophilization. While the observed "flake-like" structure of the powders differed significantly from that of the emulsified microcapsules, useful properties were retained. Fourier transform infrared spectroscopy confirmed the presence of EOs in their corresponding powders and thermo-gravimetric analysis demonstrated high encapsulation efficiency (87-88%), improved thermal stability and resistance to evaporation, and slow EO release rates in comparison to their free forms. The lightweight and low-cost cellulose encapsulation, together with the results showing retained properties of the dried powder, enable the use of EOs in applications requiring high temperatures, such as EO incorporation into polymer films, that can be used to protect agricultural crops from microbial infections.
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Affiliation(s)
- Koranit Shlosman
- The Interdepartmental Program in Polymer Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel;
- R&D and Customer Service Department Carmel Olefins Ltd., Haifa 31014, Israel;
| | - Dmitry M. Rein
- Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel;
| | - Rotem Shemesh
- R&D and Customer Service Department Carmel Olefins Ltd., Haifa 31014, Israel;
| | - Yachin Cohen
- Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel;
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2
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Safakas K, Giotopoulou I, Giannakopoulou A, Katerinopoulou K, Lainioti GC, Stamatis H, Barkoula NM, Ladavos A. Designing Antioxidant and Antimicrobial Polyethylene Films with Bioactive Compounds/Clay Nanohybrids for Potential Packaging Applications. Molecules 2023; 28:molecules28072945. [PMID: 37049708 PMCID: PMC10095763 DOI: 10.3390/molecules28072945] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
In the present work, direct incorporation of bioactive compounds onto the surface and interlayer of nanoclays before their incorporation into the final polymeric film was conducted, based on a green methodology developed by our group that is compatible with food packaging. This will lead to the higher thermal stability and the significant reduction of the loss of activity of the active ingredients during packaging configuration. On this basis, the essential oil (EO) components carvacrol (C), thymol (T) as well as olive leaf extract (OLE), which is used for the first time, were incorporated onto organo-modified montmorillonite (O) or inorganic bentonite (B) through the evaporation/adsorption method. The prepared bioactive nanocarriers were further mixed with low-density polyethylene (LDPE), via melt compounding, in order to prepare films for potential use as fresh fruit and vegetable packaging material. Characterization of the bioactive nanocarriers and films were performed through XRD, TGA, tensile, antimicrobial and antioxidant tests. Films with organically modified montmorillonite loaded with carvacrol (OC), thymol (OT) and olive leaf extract (OOLE) at 5% wt. showed better results in terms of mechanical properties. The films with polyethylene and organically modified montmorillonite loaded with carvacrol or thymol at 20% wt. (PE_OC20 and PE_OT20), as well as with olive leaf extract at 5 or 10 %wt., clay:bioactive substance ratio 1:0.5 and 10% compatibilizer (PE_OOLE5_MA10 and PE_OOLE10_MA10) exhibited the highest antioxidant activity. The resulting films displayed outstanding antimicrobial properties against Gram-negative Escherichia coli (E. coli) with the best results appearing in the films with 10% OC and OT.
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3
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Wu H, Ma L, Li S, Wang J, Li T, Peng L, Li S, Li Q, Yuan X, Zhou M, Zhang Z, Liu Y. Sustained-release antibacterial gelatin films: Effects of diatomite/carvacrol complex on their structure, physicochemical and antibacterial properties. Food Packag Shelf Life 2023. [DOI: 10.1016/j.fpsl.2022.101019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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4
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Prudnikov E, Polishchuk I, Sand A, Hamad HA, Massad-Ivanir N, Segal E, Pokroy B. Self-assembled fatty acid crystalline coatings display superhydrophobic antimicrobial properties. Mater Today Bio 2023; 18:100516. [PMID: 36569590 PMCID: PMC9771733 DOI: 10.1016/j.mtbio.2022.100516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/05/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
Superhydrophobicity is a well-known wetting phenomenon found in numerous plants and insects. It is achieved by the combination of the surface's chemical properties and its surface roughness. Inspired by nature, numerous synthetic superhydrophobic surfaces have been developed for various applications. Designated surface coating is one of the fabrication routes to achieve the superhydrophobicity. Yet, many of these coatings, such as fluorine-based formulations, may pose severe health and environmental risks, limiting their applicability. Herein, we present a new family of superhydrophobic coatings comprised of natural saturated fatty acids, which are not only a part of our daily diet, but can be produced from renewable feedstock, providing a safe and sustainable alternative to the existing state-of-the-art. These crystalline coatings are readily fabricated via single-step deposition routes, namely thermal deposition or spray-coating. The fatty acids self-assemble into highly hierarchical crystalline structures exhibiting a water contact angle of ∼165° and contact angle hysteresis lower than 6°, while their properties and morphology depend on the specific fatty acid used as well as on the deposition technique. Moreover, the fatty acid coatings demonstrate excellent thermal stability. Importantly, this new family of coatings displays excellent anti-biofouling and antimicrobial properties against Escherichia coli and Listeria innocua, used as relevant model Gram-negative and Gram-positive bacteria, respectively. These multifunctional coatings hold immense potential for application in numerous fields, ranging from food safety to biomedicine, offering sustainable and safe solutions.
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Affiliation(s)
- Elena Prudnikov
- Department of Materials Science and Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel
| | - Iryna Polishchuk
- Department of Materials Science and Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel
| | - Andy Sand
- Faculty of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel
| | - Hanan Abu Hamad
- Faculty of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel
| | - Naama Massad-Ivanir
- Faculty of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel
| | - Ester Segal
- Faculty of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel
| | - Boaz Pokroy
- Department of Materials Science and Engineering, Technion − Israel Institute of Technology, 3200003 Haifa, Israel
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5
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Development, Characterization, and Evaluation as Food Active Packaging of Low-Density-Polyethylene-Based Films Incorporated with Rich in Thymol Halloysite Nanohybrid for Fresh "Scaloppini" Type Pork Meat Fillets Preservation. Polymers (Basel) 2023; 15:polym15020282. [PMID: 36679162 PMCID: PMC9861554 DOI: 10.3390/polym15020282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/01/2023] [Accepted: 01/02/2023] [Indexed: 01/06/2023] Open
Abstract
A new era is rising in food packaging and preservation, with a consequent focus on transition to "greener" and environmentally friendly techniques. The environmental problems that are emerging nowadays impose use of natural materials for food packaging applications, replacement of chemical preservatives with natural organic extractions, such as essential oils, and targeting of new achievements, such as further extension of food shelf-life. According to this new philosophy, most of the used materials for food packaging should be recyclable, natural or bio-based, and/or edible. The aim of this work was to investigate use and efficiency of a novel food packaging developed based on commercial LDPE polymer incorporated with natural material halloysite impregnated with natural extract of thyme oil. Moreover, a direct correlation between the stiff TBARS method and the easiest heme iron measurements method was scanned to test food lesions easier and faster. The result of this study was development of the LDPE/10TO@HNT film, which contains the optimum amount of a hybrid nanostructure and is capable to be used as an efficient active food packaging film. Furthermore, a linear correlation seems to connect the TBARS and heme iron measurements.
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6
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Salmas CE, Giannakas AE, Moschovas D, Kollia E, Georgopoulos S, Gioti C, Leontiou A, Avgeropoulos A, Kopsacheili A, Avdylaj L, Proestos C. Kiwi Fruits Preservation Using Novel Edible Active Coatings Based on Rich Thymol Halloysite Nanostructures and Chitosan/Polyvinyl Alcohol Gels. Gels 2022; 8:gels8120823. [PMID: 36547348 PMCID: PMC9777596 DOI: 10.3390/gels8120823] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/06/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022] Open
Abstract
The concept of this study is the replacement of previous fossil-based techniques for food packaging and food shelf-life extension, with novel more green processes and materials following the spirit of circular economy and the global trend for environmentally positive fingerprints. A novel adsorption process to produce thymol-halloysite nanohybrids is presented in this work. The high dispersion of this thymol-halloysite nanostructure in chitosan biopolymer is one of the goals of this study. The incorporation of this biodegradable matrix with poly-vinyl-alcohol produced a very promising food-packaging film. Mechanical, water-oxygen barrier, antimicrobial, and antioxidant properties were measured. Transparency levels were also tested using a UV-vis instrument. Moreover, the developed films were tested in-vivo for the preservation and the extension of the shelf-life of kiwi fruits. In all cases, results indicated that the increased fraction of thymol from thyme oil significantly enhances the antimicrobial and antioxidant activity of the prepared chitosan-poly-vinyl- alcohol gel. The use of the halloysite increases the mechanical and water-oxygen barrier properties and leads to a control release process of thymol which extends the preservation and the shelf-life of kiwi fruits. Finally, the results indicated that the halloysite improves the properties of the chitosan/poly-vinyl-alcohol films, and the thymol makes them further advantageous.
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Affiliation(s)
- Constantinos E. Salmas
- Department of Material Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
- Correspondence: (C.E.S.); (A.E.G.); (C.P.)
| | - Aris E. Giannakas
- Department of Food Science and Technology, University of Patras, 30100 Agrinio, Greece
- Correspondence: (C.E.S.); (A.E.G.); (C.P.)
| | - Dimitrios Moschovas
- Department of Material Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Eleni Kollia
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Zografou, 15771 Athens, Greece
| | - Stavros Georgopoulos
- Department of Food Science and Technology, University of Patras, 30100 Agrinio, Greece
| | - Christina Gioti
- Department of Material Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Areti Leontiou
- Department of Food Science and Technology, University of Patras, 30100 Agrinio, Greece
| | - Apostolos Avgeropoulos
- Department of Material Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Anna Kopsacheili
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Zografou, 15771 Athens, Greece
| | - Learda Avdylaj
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Zografou, 15771 Athens, Greece
| | - Charalampos Proestos
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Zografou, 15771 Athens, Greece
- Correspondence: (C.E.S.); (A.E.G.); (C.P.)
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7
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Premanath R, James JP, Karunasagar I, Vaňková E, Scholtz V. Tropical plant products as biopreservatives and their application in food safety. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Baheri B, Lindenberger AL, Sharma S, Lee S. Characterization of linear low‐density polyethylene and halloysite nanotube (
LLDPE
/
HNT
) composites based on two‐roll calendering melt fabrication. J Appl Polym Sci 2022. [DOI: 10.1002/app.53259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bahareh Baheri
- Sustainable Energy and Advanced Materials (SEAM) Laboratory Ohio University Athens Ohio USA
- Department of Chemical and Biomolecular Engineering Ohio University Athens Ohio USA
| | - Amy L. Lindenberger
- Sustainable Energy and Advanced Materials (SEAM) Laboratory Ohio University Athens Ohio USA
- Department of Chemical and Biomolecular Engineering Ohio University Athens Ohio USA
| | - Sumit Sharma
- Department of Chemical and Biomolecular Engineering Ohio University Athens Ohio USA
| | - Sunggyu Lee
- Sustainable Energy and Advanced Materials (SEAM) Laboratory Ohio University Athens Ohio USA
- Chemtech Innovators LLC Athens Ohio USA
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9
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Nejatian M, Darabzadeh N, Bodbodak S, Saberian H, Rafiee Z, Kharazmi MS, Jafari SM. Practical application of nanoencapsulated nutraceuticals in real food products; a systematic review. Adv Colloid Interface Sci 2022; 305:102690. [PMID: 35525089 DOI: 10.1016/j.cis.2022.102690] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 11/29/2022]
Abstract
In recent decades, due to the increase in awareness, most consumers prefer foods that not only satisfy their primal urge of hunger but also include health-promoting effects on the body. Therefore, the food industry has an increasing tendency to apply the nutrients (like vitamins, essential fatty acids and minerals) and replace synthetic additives with natural bioactives (like phenolics and essential oils) to produce functional products. However, low dispersibility and shelf-stability as well as presenting unpleasant taste and odor are the most critical barriers for direct incorporation of these useful compounds into foods. In this context, nanoencapsulation has been proposed as a relatively new solution to overcome the mentioned limitations. However, fewer studies have focused on incorporating the bioactive-loaded nanocarriers into the food matrices. This study intends to help the development of functional food production by doing an exhaustive review on the incorporation of nanoencapsulated ingredients into the real food system and resulted interaction of nanocarriers and food products. According to the literature, incorporation of the nanoencapsulated bioactive ingredients into foods can be effectively used to enhance their stability during the processing and storage stage and their bioavailability as well as to delay lipid oxidation and microbial growth in food, without negatively affecting physicochemical, organoleptic and qualitative properties. However, some published results to date declared that food matrix might adversely affect the bioavailability and antimicrobial activity of nanoencapsulated ingredients. It seems that further studies are required to contribute to the choice of appropriate healthy ingredients and wall materials for incorporating into a given food structure.
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Affiliation(s)
- Mohammad Nejatian
- Department of Nutrition Science and Food Hygiene, Faculty of Health, Baqiyatallah University of Medical Sciences, Tehran, Iran; Health Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Nazanin Darabzadeh
- Modares Science and Technology Park, Tarbiat Modares University, Tehran, Iran
| | - Samad Bodbodak
- Department of Food Science and Technology, Ahar Faculty of Agriculture and Natural Resources, University of Tabriz, Tabriz, Iran
| | - Hamed Saberian
- Technical Centre of Agriculture, Academic Center for Education, Culture and Research (ACECR), Isfahan University of Technology, Isfahan, Iran
| | - Zahra Rafiee
- Food Research and Development Center, Ofogh Dasht Arya Co, Tabriz, Iran
| | | | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran; Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, E-32004 Ourense, Spain.
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10
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Controlled Release of Volatile Antimicrobial Compounds from Mesoporous Silica Nanocarriers for Active Food Packaging Applications. Int J Mol Sci 2022; 23:ijms23137032. [PMID: 35806038 PMCID: PMC9266657 DOI: 10.3390/ijms23137032] [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: 05/24/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 02/01/2023] Open
Abstract
Essential oils and their active components have been extensively reported in the literature for their efficient antimicrobial, antioxidant and antifungal properties. However, the sensitivity of these volatile compounds towards heat, oxygen and light limits their usage in real food packaging applications. The encapsulation of these compounds into inorganic nanocarriers, such as nanoclays, has been shown to prolong the release and protect the compounds from harsh processing conditions. Nevertheless, these systems have limited shelf stability, and the release is of limited control. Thus, this study presents a mesoporous silica nanocarrier with a high surface area and well-ordered protective pore structure for loading large amounts of natural active compounds (up to 500 mg/g). The presented loaded nanocarriers are shelf-stable with a very slow initial release which levels out at 50% retention of the encapsulated compounds after 2 months. By the addition of simulated drip-loss from chicken, the release of the compounds is activated and gives an antimicrobial effect, which is demonstrated on the foodborne spoilage bacteria Brochothrixthermosphacta and the potentially pathogenic bacteria Escherichia coli. When the release of the active compounds is activated, a ≥4-log reduction in the growth of B. thermosphacta and a 2-log reduction of E. coli is obtained, after only one hour of incubation. During the same one-hour incubation period the dry nanocarriers gave a negligible inhibitory effect. By using the proposed nanocarrier system, which is activated by the food product itself, increased availability of the natural antimicrobial compounds is expected, with a subsequent controlled antimicrobial effect.
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11
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Development of gas phase controlled-release antimicrobial and antioxidant packaging film containing carvacrol loaded with HNT-4M(halloysite nanotubes etched by 4 mol/L hydrochloric acid). Food Packag Shelf Life 2022. [DOI: 10.1016/j.fpsl.2021.100783] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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12
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Giannakas AE, Salmas CE, Leontiou A, Moschovas D, Baikousi M, Kollia E, Tsigkou V, Karakassides A, Avgeropoulos A, Proestos C. Performance of Thyme Oil@Na-Montmorillonite and Thyme Oil@Organo-Modified Montmorillonite Nanostructures on the Development of Melt-Extruded Poly-L-lactic Acid Antioxidant Active Packaging Films. Molecules 2022; 27:molecules27041231. [PMID: 35209022 PMCID: PMC8875974 DOI: 10.3390/molecules27041231] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/08/2022] [Accepted: 02/09/2022] [Indexed: 12/04/2022] Open
Abstract
Today, the use of natural biodegradable materials in the production processes is more and more adopted by industry to achieve cyclic economy targets and to improve environmental and human health indexes. Active packaging is the latest trend for food preservation. In this work, nanostructures were prepared by incorporation of thyme oil with natural natrium-montmorillonite and organo-montmorillonite with two different techniques, direct impregnation and the green evaporation–adsorption process. Such nanostructures were mixed with poly-L-lactic-acid for the first time via an extrusion molding process to develop a new packaging film. Comparisons of morphological, mechanical, and other basic properties for food packaging were carried out via XRD, FTIR, TG, SEM/EDS, oxygen and water vapor permeation, and antimicrobial and antioxidant activity for the first time. Results showed that poly-L-lactic-acid could be modified with clays and essential oils to produce improved active packaging films. The final product exhibits food odor prevention characteristics and shelf-life extension capabilities, and it could be used for active packaging. The films based on OrgMt clay seems to be more promising, while the thyme oil addition improves their behavior as active packaging. The PLLA/3%TO@OrgMt and PLLA/5%TO@OrgMt films were qualified between the tested samples as the most promising materials for this purpose.
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Affiliation(s)
- Aris E. Giannakas
- Department of Food Science and Technology, University of Patras, 30100 Agrinio, Greece
- Correspondence: (A.E.G.); (C.E.S.); (C.P.)
| | - Constantinos E. Salmas
- Department of Material Science & Engineering, University of Ioannina, 45110 Ioannina, Greece; (D.M.); (M.B.); (A.K.); (A.A.)
- Correspondence: (A.E.G.); (C.E.S.); (C.P.)
| | - Areti Leontiou
- Laboratory of Food Technology, Department of Business Administration of Agricultural and Food Enterprises, University of Patras, 30100 Agrinio, Greece;
| | - Dimitrios Moschovas
- Department of Material Science & Engineering, University of Ioannina, 45110 Ioannina, Greece; (D.M.); (M.B.); (A.K.); (A.A.)
| | - Maria Baikousi
- Department of Material Science & Engineering, University of Ioannina, 45110 Ioannina, Greece; (D.M.); (M.B.); (A.K.); (A.A.)
| | - Eleni Kollia
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Zografou, 15771 Athens, Greece; (E.K.); (V.T.)
| | - Vasiliki Tsigkou
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Zografou, 15771 Athens, Greece; (E.K.); (V.T.)
| | - Anastasios Karakassides
- Department of Material Science & Engineering, University of Ioannina, 45110 Ioannina, Greece; (D.M.); (M.B.); (A.K.); (A.A.)
| | - Apostolos Avgeropoulos
- Department of Material Science & Engineering, University of Ioannina, 45110 Ioannina, Greece; (D.M.); (M.B.); (A.K.); (A.A.)
| | - Charalampos Proestos
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Zografou, 15771 Athens, Greece; (E.K.); (V.T.)
- Correspondence: (A.E.G.); (C.E.S.); (C.P.)
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13
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Pereira I, Saleh M, Nunes C, Reis S, Veiga F, Paiva-Santos AC. Preclinical developments of natural-occurring halloysite clay nanotubes in cancer therapeutics. Adv Colloid Interface Sci 2021; 291:102406. [PMID: 33819725 DOI: 10.1016/j.cis.2021.102406] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 02/06/2023]
Abstract
The natural world holds useful resources that can be exploited to design effective therapeutic approaches. Ready-to-use tubular nanoclays, such as halloysite clay nanotubes (HNTs), are widely available, cost-effective, and sustainable submicron crystalline materials that have been showing great potential towards chronic multifactorial and malignant diseases, standing out as a promising anticancer nanotherapeutic strategy. Currently, several preclinical studies have reported the application of HNTs in cancer research, diagnosis, monitoring, and therapeutics. This groundbreaking review highlights the preclinical knowledge hitherto collected concerning the application of HNTs towards cancer therapy. Despite their reproducibility issues, HNTs were used as nanoarchitectonic platforms for the delivery of conventional chemotherapeutic, natural-occurring, biopharmaceutical, and phototherapeutic anticancer agents in a wide range of in vitro and in vivo solid cancer models. Overall, in different types of cancer mice models, the intratumoral and intravenous administration of HNTs-based nanoplatforms induced tumor growth inhibition without causing significant toxic effects. Such evidence raises a relevant question: does the therapeutic benefit of the parenteral administration of HNTs in cancer outweigh their potential toxicological risk? To answer this question further long-term absorption-distribution-metabolism-excretion studies in healthy and cancer animal models need to be performed. In cancer therapeutics, HNTs are envisaged as promising platforms for cancer multi-agent therapy, enabling the combination of different therapeutic modalities. Furthermore, HNTs might constitute suitable nanotheranostic platforms. Nevertheless, to confirm the potential and safety of the application of HNTs as nanodelivery systems for cancer therapy, it is necessary to perform in-depth in vivo pharmacokinetics and pharmacodynamic studies to further the translation to clinical trials.
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14
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Contribution of Essential Oils to the Fight against Microbial Biofilms—A Review. Processes (Basel) 2021. [DOI: 10.3390/pr9030537] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The increasing clinical use of artificial medical devices raises the issue of microbial contamination, which is a risk factor for the occurrence of biofilm-associated infections. A huge amount of scientific data highlights the promising potential of essential oils (EOs) to be used for the development of novel antibiofilm strategies. We aimed to review the relevant literature indexed in PubMed and Embase and to identify the recent directions in the field of EOs, as a new modality to eradicate microbial biofilms. We paid special attention to studies that explain the mechanisms of the microbicidal and antibiofilm activity of EOs, as well as their synergism with other antimicrobials. The EOs are difficult to test for their antimicrobial activity due to lipophilicity and volatility, so we have presented recent methods that facilitate these tests. There are presented the applications of EOs in chronic wounds and biofilm-mediated infection treatment, in the food industry and as air disinfectants. This analysis concludes that EOs are a source of antimicrobial agents that should not be neglected and that will probably provide new anti-infective therapeutic agents.
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15
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Gulin-Sarfraz T, Kalantzopoulos GN, Kvalvåg Pettersen M, Wold Åsli A, Tho I, Axelsson L, Sarfraz J. Inorganic Nanocarriers for Encapsulation of Natural Antimicrobial Compounds for Potential Food Packaging Application: A Comparative Study. NANOMATERIALS 2021; 11:nano11020379. [PMID: 33540744 PMCID: PMC7913054 DOI: 10.3390/nano11020379] [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: 01/13/2021] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 12/16/2022]
Abstract
Design and development of novel inorganic nanocarriers for encapsulation of natural antimicrobial substances for food packaging applications have received great interest during the last years. Natural nanoclays are the most investigated nanocarriers and recently interest has also grown in the synthetically produced porous silica particles. However, these different carrier matrices have not been compared in terms of their loading capability and subsequent release. In this study, the feasibility of porous silica particles (with different pore structures and/or surface functionalities) and commercially available nanoclays were evaluated as encapsulation matrices. Two well-studied antimicrobial substances, thymol and curcumin, were chosen as volatile and non-volatile model compounds, respectively. The encapsulation efficiency, and the subsequent dispersibility and release, of these substances differed significantly among the nanocarriers. Encapsulation of the volatile compound highly depends on the inner surface area, i.e., the protective pore environment, and an optimal nanocarrier can protect the encapsulated thymol from volatilization. For the non-volatile compound, only the release rate and dispersibility are affected by the pore structure. Further, water-activated release of the volatile compound was demonstrated and exhibited good antimicrobial efficacy in the vapor phase against Staphylococcus aureus. This comparative study can provide a base for selecting the right nanocarrier aimed at a specific food packaging application. No nanocarrier can be considered as a universally applicable one.
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Affiliation(s)
- Tina Gulin-Sarfraz
- Nofima-Norwegian Institute of Food, Fisheries and Aquaculture Research, P.O. Box 210, NO-1431 Ås, Norway; (M.K.P.); (A.W.Å.); (L.A.)
- Correspondence: (T.G.-S.); (J.S.)
| | - Georgios N. Kalantzopoulos
- Center for Materials Science and Nanotechnology (SMN), Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, NO-0315 Oslo, Norway;
| | - Marit Kvalvåg Pettersen
- Nofima-Norwegian Institute of Food, Fisheries and Aquaculture Research, P.O. Box 210, NO-1431 Ås, Norway; (M.K.P.); (A.W.Å.); (L.A.)
| | - Anette Wold Åsli
- Nofima-Norwegian Institute of Food, Fisheries and Aquaculture Research, P.O. Box 210, NO-1431 Ås, Norway; (M.K.P.); (A.W.Å.); (L.A.)
| | - Ingunn Tho
- Department of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, NO-0316 Oslo, Norway;
| | - Lars Axelsson
- Nofima-Norwegian Institute of Food, Fisheries and Aquaculture Research, P.O. Box 210, NO-1431 Ås, Norway; (M.K.P.); (A.W.Å.); (L.A.)
| | - Jawad Sarfraz
- Nofima-Norwegian Institute of Food, Fisheries and Aquaculture Research, P.O. Box 210, NO-1431 Ås, Norway; (M.K.P.); (A.W.Å.); (L.A.)
- Correspondence: (T.G.-S.); (J.S.)
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16
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Nanocomposites for Food Packaging Applications: An Overview. NANOMATERIALS 2020; 11:nano11010010. [PMID: 33374563 PMCID: PMC7822409 DOI: 10.3390/nano11010010] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 12/18/2022]
Abstract
There is a strong drive in industry for packaging solutions that contribute to sustainable development by targeting a circular economy, which pivots around the recyclability of the packaging materials. The aim is to reduce traditional plastic consumption and achieve high recycling efficiency while maintaining the desired barrier and mechanical properties. In this domain, packaging materials in the form of polymer nanocomposites (PNCs) can offer the desired functionalities and can be a potential replacement for complex multilayered polymer structures. There has been an increasing interest in nanocomposites for food packaging applications, with a five-fold rise in the number of published articles during the period 2010–2019. The barrier, mechanical, and thermal properties of the polymers can be significantly improved by incorporating low concentrations of nanofillers. Furthermore, antimicrobial and antioxidant properties can be introduced, which are very relevant for food packaging applications. In this review, we will present an overview of the nanocomposite materials for food packaging applications. We will briefly discuss different nanofillers, methods to incorporate them in the polymer matrix, and surface treatments, with a special focus on the barrier, antimicrobial, and antioxidant properties. On the practical side migration issues, consumer acceptability, recyclability, and toxicity aspects will also be discussed.
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Abstract
The numerous biological applications of nanoparticles in general and nano-clays in particular are rooted in understanding and harnessing their dynamic nano-bio interface. Among clays, the intrinsically-mesoporous halloysite nanotubes (HNTs) have emerged in recent years as promising nanomaterials. The diverse interactions of these nanotubes with living cells, encompassing electrostatic, van der Waals, and ion exchange, along with cellular response, are crucial in determining the behaviour of HNTs in biological systems. Thus, rational engineering of the nanotube properties allows for vast applications ranging from bacteria encapsulation for bioremediation, through algae flocculation for aquaculture, to intracellular drug delivery. This review summarizes the many aspects of the nano-bio interface of HNTs with different cell types (bacteria, algae and fungi, and mammalian cells), highlighting biocompatibility/bio-adverse properties, interaction mechanisms, and the latest cutting-edge technologies.
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Affiliation(s)
- Ofer Prinz Setter
- Department of Biotechnology and Food Engineering, Technion - Israel Institute of Technology, Technion City, 3200003 Haifa, Israel.
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18
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Natural halloysite nanotubes /chitosan based bio-nanocomposite for delivering norfloxacin, an anti-microbial agent in sustained release manner. Int J Biol Macromol 2020; 162:1849-1861. [DOI: 10.1016/j.ijbiomac.2020.08.060] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 08/02/2020] [Accepted: 08/06/2020] [Indexed: 02/07/2023]
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19
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Vergallo C. Nutraceutical Vegetable Oil Nanoformulations for Prevention and Management of Diseases. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1232. [PMID: 32599957 PMCID: PMC7353093 DOI: 10.3390/nano10061232] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 06/21/2020] [Accepted: 06/22/2020] [Indexed: 12/11/2022]
Abstract
The scientific community is becoming increasingly interested in identifying, characterizing, and delivering nutraceuticals, which constitutes a multi-billion-dollar business. These bioactive agents are claimed to exhibit several health benefits, including the prevention and treatment of diseases such as arthritis, cancer, osteoporosis, cataracts, Alzheimer's, and Huntington's diseases, heart, brain and metabolic disorders, etc. Nutraceuticals are typically consumed as part of a regular human diet and are usually present within foods, comprising vegetable oil, although at low levels and variable composition. Thus, it is difficult to control the type, amount and frequency of their ingestion by individuals. Nanoformulations about vegetable oil-based bioactive compounds with nutraceutical properties are useful for overcoming these issues, while improving the uptake, absorption, and bioavailability in the body. The purpose of this current study is to review papers on such nanoformulations, particularly those relevant for health benefits and the prevention and management of diseases, as well as bioactives extracted from vegetable oils enhancing the drug effectiveness, retrieved through bibliographic databases by setting a timespan from January 2000 to April 2020 (about 1758 records).
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Affiliation(s)
- Cristian Vergallo
- Department of Biological and Environmental Science and Technology (Di.S.Te.B.A.), University of Salento, 73010 Lecce, Italy
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20
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Na-Montmorillonite vs. Organically Modified Montmorillonite as Essential Oil Nanocarriers for Melt-Extruded Low-Density Poly-Ethylene Nanocomposite Active Packaging Films with a Controllable and Long-Life Antioxidant Activity. NANOMATERIALS 2020; 10:nano10061027. [PMID: 32471304 PMCID: PMC7352687 DOI: 10.3390/nano10061027] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/21/2020] [Accepted: 05/23/2020] [Indexed: 11/17/2022]
Abstract
Nowadays, active packaging is becoming significant for the extension of the shelf life of food products via the incorporation of raw nanomaterials such as nanoclays and bioactive compounds such as essential oils (EO). This study aims to study the performance of the sodium montmorillonite (NaMt) and organically modified montmorillonite (OrgMt) as thyme (TO), oregano (OO), and basil (BO) essential oil (EO) control release nanocarriers in low-density poly-ethylene (LDPE) active films. NaMt and OrgMt nanofillers are modified with low (20 wt.%), medium (40 wt.%), and high (80 wt.%) nominal contents of TO, OO, and BO. The novel active packaging films were tested using the X-ray diffraction method (XRD), tensile, water, and oxygen barrier properties, and antioxidant activity tests. For the two most active packaging films, the lipid oxidation of chicken breast fillets estimated by the thiobarbituric-acid-reacting substances (TBARS) method. Overall study shows that both NaMtEO-based and OrgMt-based films exhibited controllable and sustained antioxidant activity. All films retained up to 50-70% of their antioxidant activity after six months of incubation. OrgMtEO-based LDPE films showed more significance applied as active packaging films than NaMtEO-based LDPE films because of their highest tensile and barrier properties.
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21
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Antibacterial nanobiocomposite based on halloysite nanotubes and extracted xylan from bagasse pith. Int J Biol Macromol 2020; 160:276-287. [PMID: 32470589 DOI: 10.1016/j.ijbiomac.2020.05.209] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/05/2020] [Accepted: 05/23/2020] [Indexed: 12/17/2022]
Abstract
In this study, the antibacterial polyelectrolyte carboxymethyl xylan/chitosan (CMX/CS) films incorporated with halloysite nanotubes (HNTs) and Origanum vulgare essential oil (OEO) were prepared and then characterized. Xylan-rich hemicelluloses (62.23%) were extracted from sugarcane bagasse pith and then subjected to carboxymethylation. FTIR analysis revealed the successful modification of hemicelluloses. The irregular white spots in SEM images of nanobiocomposites revealed the entrance of HNTs into the polymer matrix. EDX maps manifested that the density of Si and Al atoms increased, as the amount of HNT increased. The observed discontinuities for EO-containing nanobiocomposites in the SEM images may be attributed to the hydrophobic nature of EO. The barrier properties of the nanocomposites improved by incorporation of HNTs and O. vulgare. The tensile strength of nanocomposite improved significantly by incorporating HNT. EO/HNT-containing films exhibited a higher antibacterial activity against selected bacteria than HNT-containing films.
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22
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Shebis Y, Kumar VB, Gedanken A, Poverenov E. Cooperative crystallization effect in the formation of sonochemically grafted active materials based on polysaccharides. Colloids Surf B Biointerfaces 2020; 190:110931. [PMID: 32151912 DOI: 10.1016/j.colsurfb.2020.110931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 03/01/2020] [Accepted: 03/02/2020] [Indexed: 10/24/2022]
Abstract
The current study explores the formation of active eco-friendly materials capable of preventing microbial contamination using in situ ultrasonic grafting of vanillin, curcumin and a curcumin-vanillin mixture on the surfaces of carboxymethylcellulose (CMC) and chitosan films. Spectroscopic, microscopic, physical and mechanical studies revealed that the films grafted with curcumin-vanillin mixture demonstrate improved mechanical properties and higher degree of order. The bioactivity of the prepared films was tested on food model, fresh-cut melons and films with a deposited curcumin-vanillin mixture showed superior antibacterial properties. For instance, this mixture-grafted on CMC films demonstrated a total inhibition of yeast/mold proliferation during 12 days. The HR-SEM studies of the mixture-grafted films revealed the presence of crystalline structures. Cooperative crystallization effect between the curcumin (the crystal maker) and the volatile vanillin is suggested to be responsible for the observed effects. According to our knowledge, this is the first usage of co-crystallization method in surface deposition. The results point out to a general strategy of combining a crystal maker agent with a volatile active agent during in situ sonochemical deposition to form bioactive materials that can be further used for food packaging, agriculture, pharmacology and more.
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Affiliation(s)
- Yevgenia Shebis
- Agro-Nanotechnology and Advanced Materials Research Center, Department of Food Science, Agriculture Research Organization, The Volcani Center, Rishon Lezion, Israel; Faculty of Agriculture, Biochemistry and Food Sciences, The Hebrew University of Jerusalem, Israel
| | - Vijay Bhooshan Kumar
- Department of Chemistry and Kanbar Laboratory for Nanomaterials, Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan, Israel
| | - Aharon Gedanken
- Department of Chemistry and Kanbar Laboratory for Nanomaterials, Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan, Israel
| | - Elena Poverenov
- Agro-Nanotechnology and Advanced Materials Research Center, Department of Food Science, Agriculture Research Organization, The Volcani Center, Rishon Lezion, Israel.
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23
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Becerril R, Nerín C, Silva F. Encapsulation Systems for Antimicrobial Food Packaging Components: An Update. Molecules 2020; 25:E1134. [PMID: 32138320 PMCID: PMC7179124 DOI: 10.3390/molecules25051134] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 02/28/2020] [Accepted: 02/29/2020] [Indexed: 11/20/2022] Open
Abstract
Antimicrobially active packaging has emerged as an effective technology to reduce microbial growth in food products increasing both their shelf-life and microbial safety for the consumer while maintaining their quality and sensorial properties. In the last years, a great effort has been made to develop more efficient, long-lasting and eco-friendly antimicrobial materials by improving the performance of the incorporated antimicrobial substances. With this purpose, more effective antimicrobial compounds of natural origin such as bacteriocins, bacteriophages and essential oils have been preferred over synthetic ones and new encapsulation strategies such as emulsions, core-shell nanofibres, cyclodextrins and liposomes among others, have been applied in order to protect these antimicrobials from degradation or volatilization while trying to enable a more controlled release and sustained antimicrobial action. On that account, this article provides an overview of the types of antimicrobials agents used and the most recent trends on the strategies used to encapsulate the antimicrobial agents for their stable inclusion in the packaging materials. Moreover, a thorough discussion regarding the benefits of each encapsulation technology as well as their application in food products is presented.
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Affiliation(s)
- Raquel Becerril
- I3A–Aragón Institute of Engineering Research, University of Zaragoza, Calle María de Luna 3, 50018 Zaragoza, Spain; (R.B.); (C.N.)
| | - Cristina Nerín
- I3A–Aragón Institute of Engineering Research, University of Zaragoza, Calle María de Luna 3, 50018 Zaragoza, Spain; (R.B.); (C.N.)
| | - Filomena Silva
- ARAID–Agencia Aragonesa para la Investigación y el Desarollo, Av. de Ranillas 1-D, planta 2ª, oficina B, 50018 Zaragoza, Spain
- Faculty of Veterinary Medicine, University of Zaragoza, Calle de Miguel Servet 177, 50013 Zaragoza, Spain
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24
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Fang S, Qiu W, Mei J, Xie J. Effect of Sonication on the Properties of Flaxseed Gum Films Incorporated with Carvacrol. Int J Mol Sci 2020; 21:E1637. [PMID: 32121050 PMCID: PMC7084845 DOI: 10.3390/ijms21051637] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 02/19/2020] [Accepted: 02/24/2020] [Indexed: 01/10/2023] Open
Abstract
Carvacrol is a natural compound known to be a highly effective antibacterial; however, it is a hydrophobic molecule, which is a limitation to its use within food packaging. Flaxseed gum (FG) films containing different contents of carvacrol (C) were produced by a film-casting method with sonication. The effects of sonication power and time on the properties of the FG-C films were investigated by measuring the film thickness, mechanical properties, contact angle, opacity, water vapor permeability (WVP), water sorption isotherm, Fourier transform infrared spectroscopy(FTIR), differential scanning calorimetry (DSC), antibacterial and antioxidant activities, and microstructure. The results showed that sonication power and time had significant effects on mechanical and barrier properties, film opacity, and degradability (p < 0.05). The tensile strength (TS) and elongation at break (EB) values exhibited an obvious improvement after sonication, and FG-0.5C-6030 had the lowest TS (33.40 MPa) and EB (4.46%) values. FG-C films formed a denser structure and the contact angle was improved as a result of sonication, which improved the integration of carvacrol into the FG matrix. In terms of microstructure, sonication resulted in a homogeneous and continuous crosssection of FG-C films, and regular surface and cross-sectional images were obtained through the highest acoustic intensity and longest time treatment. The FG films incorporated with carvacrol displayed antibacterial properties against Staphylococcus aureus, Vibrio parahaemolyticus, Shewanella putrefaciens, and Pseudomonas fluorescens, as well as increased antioxidant properties, and sonication was proven to enhance both of them.
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Affiliation(s)
- Shiyuan Fang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (S.F.); (W.Q.)
| | - Weiqiang Qiu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (S.F.); (W.Q.)
- National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, China
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China
| | - Jun Mei
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (S.F.); (W.Q.)
- National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, China
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China
| | - Jing Xie
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (S.F.); (W.Q.)
- National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, China
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China
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25
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Giannakas A, Stathopoulou P, Tsiamis G, Salmas C. The effect of different preparation methods on the development of chitosan/thyme oil/montmorillonite nanocomposite active packaging films. J FOOD PROCESS PRES 2019. [DOI: 10.1111/jfpp.14327] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aris Giannakas
- Laboratory of Food Technology Department of Business Administration of Food and Agricultural Enterprises University of Patras Agrinio Greece
| | | | - George Tsiamis
- Department of Environmental Engineering University of Patras Agrinio Greece
| | - Constantinos Salmas
- Department of Material Science & Engineering University of Ioannina Ioannina Greece
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26
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Santos AC, Pereira I, Reis S, Veiga F, Saleh M, Lvov Y. Biomedical potential of clay nanotube formulations and their toxicity assessment. Expert Opin Drug Deliv 2019; 16:1169-1182. [PMID: 31486344 DOI: 10.1080/17425247.2019.1665020] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Introduction: Halloysite clay nanotubes (HNTs) are a naturally abundant and biocompatible aluminosilicate material with a structure able to encapsulate 10-20% of drugs. These features are attractive toward the clinical application in controlled drug delivery, tissue engineering and regenerative medicine. Areas covered: We describe the application of HNTs as a viable method for clinical purposes, particularly developing formulations for prophylaxis, diagnosis and therapeutics, having a special attention to these nanotubes bio-safety. HNTs may be used for pharmaceuticals, biopharmaceuticals, wound healing, bone regeneration, dental repair, hair surface engineering and biomimetic applications. Expert opinion: HNTs are a versatile, safe and biocompatible nanomaterial used for drug encapsulation for numerous clinical applications. The studies here reviewed confirm the HNTs biocompatibility, describing their low toxicity. Further developments will be made regarding the long-term efficacy of halloysite-based treatments in humans, concentrating mostly on topical applications.
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Affiliation(s)
- Ana Cláudia Santos
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra , Coimbra , Portugal.,REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra , Coimbra , Portugal
| | - Irina Pereira
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra , Coimbra , Portugal.,REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra , Coimbra , Portugal
| | - Salette Reis
- REQUIMTE/LAQV, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto , Porto , Portugal
| | - Francisco Veiga
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra , Coimbra , Portugal.,REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra , Coimbra , Portugal
| | - Mahdi Saleh
- Institute for Micromanufacturing, Louisiana Tech University , Ruston , LA , USA
| | - Yuri Lvov
- Institute for Micromanufacturing, Louisiana Tech University , Ruston , LA , USA.,Department of Theoretical Physics and Quantum Technologies, National University of Science and Technology "MISiS" , Moscow , Russia
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27
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Alkan Tas B, Sehit E, Erdinc Tas C, Unal S, Cebeci FC, Menceloglu YZ, Unal H. Carvacrol loaded halloysite coatings for antimicrobial food packaging applications. Food Packag Shelf Life 2019. [DOI: 10.1016/j.fpsl.2019.01.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Stavitskaya A, Batasheva S, Vinokurov V, Fakhrullina G, Sangarov V, Lvov Y, Fakhrullin R. Antimicrobial Applications of Clay Nanotube-Based Composites. NANOMATERIALS 2019; 9:nano9050708. [PMID: 31067741 PMCID: PMC6567215 DOI: 10.3390/nano9050708] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 04/28/2019] [Accepted: 04/30/2019] [Indexed: 12/25/2022]
Abstract
Halloysite nanotubes with different outer surface/inner lumen chemistry (SiO2/Al2O3) are natural objects with a 50 nm diameter hollow cylindrical structure, which are able to carry functional compounds both inside and outside. They are promising for biological applications where their drug loading capacity combined with a low toxicity ensures the safe interaction of these nanomaterials with living cells. In this paper, the antimicrobial properties of the clay nanotube-based composites are reviewed, including applications in microbe-resistant biocidal textile, paints, filters, and medical formulations (wound dressings, drug delivery systems, antiseptic sprays, and tissue engineering scaffolds). Though halloysite-based antimicrobial materials have been widely investigated, their application in medicine needs clinical studies. This review suggests the scalable antimicrobial nano/micro composites based on natural tubule clays and outlines research and development perspectives in the field.
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Affiliation(s)
- Anna Stavitskaya
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Svetlana Batasheva
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia.
| | - Vladimir Vinokurov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Gölnur Fakhrullina
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia.
| | - Vadim Sangarov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Yuri Lvov
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA 71270, USA.
| | - Rawil Fakhrullin
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia.
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29
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Swilem AE, Stloukal P, Abd El-Rehim HA, Hrabalíková M, Sedlařík V. Influence of gamma rays on the physico-chemical, release and antibacterial characteristics of low-density polyethylene composite films incorporating an essential oil for application in food-packaging. Food Packag Shelf Life 2019. [DOI: 10.1016/j.fpsl.2018.11.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Preparation and characterization of porous starch reinforced with halloysite nanotube by solvent exchange method. Int J Biol Macromol 2018; 123:682-690. [PMID: 30447374 DOI: 10.1016/j.ijbiomac.2018.11.095] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 10/19/2018] [Accepted: 11/11/2018] [Indexed: 12/18/2022]
Abstract
The aim of this study was to improvement of adsorption capacity of porous starch (PS) by incorporation of halloysite nanotube (HNT). PS/HNT carrier was synthesized through the solvent exchange method. Various fabrication approaches for PS were introduced and different ethanol ratio (40, 60, 80, 100%), HNT concentration (0, 0.1, 0.2, 0.3, 0.4 and 0.5 mg/mL) and drying method (oven, freeze dryer and microwave) were applied. The results indicated that high ratio of ethanol created larger pores and also the best results were obtained from freeze-dried samples (p < 0.05). Incorporation of HNT could further improve the adsorption capacity. However, the best oil and water adsorption capacity were related to PS alone. The nitrogen adsorption-desorption measurement and scanning electron microscopy elucidated the porous structure of samples. The experimental data were fitted successfully by the Langmuir model rather than Freundlich isotherm. Also PS/HNT had higher apparent density and more negative zeta potential rather than PS. However, the DSC results showed the similar thermal patterns for PS and PS/HNT.
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31
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Krepker M, Zhang C, Nitzan N, Prinz-Setter O, Massad-Ivanir N, Olah A, Baer E, Segal E. Antimicrobial LDPE/EVOH Layered Films Containing Carvacrol Fabricated by Multiplication Extrusion. Polymers (Basel) 2018; 10:E864. [PMID: 30960789 PMCID: PMC6403741 DOI: 10.3390/polym10080864] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 07/29/2018] [Accepted: 07/31/2018] [Indexed: 11/16/2022] Open
Abstract
This work describes the fabrication of antimicrobial multilayered polymeric films containing carvacrol (used as a model essential oil) by co-extrusion and multiplication technique. The microlayering process was utilized to produce films, with up to 65 alternating layers, of carvacrol-containing low-density polyethylene (LDPE) and ethylene vinyl alcohol copolymer (EVOH). Carvacrol was melt compounded with LDPE or loaded into halloysite nanotubes (HNTs) in a pre-compounding step prior film production. The detailed nanostructure and composition (in terms of carvacrol content) of the films were characterized and correlated to their barrier properties, carvacrol release rate, and antibacterial and antifungal activity. The resulting films exhibit high carvacrol content despite the harsh processing conditions (temperature of 200 °C and long processing time), regardless of the number of layers or the presence of HNTs. The multilayered films exhibit superior oxygen transmission rates and carvacrol diffusivity values that are more than two orders of magnitude lower in comparison to single-layered carvacrol-containing films (i.e., LDPE/carvacrol and LDPE/(HNTs/carvacrol)) produced by conventional cast extrusion. The (LDPE/carvacrol)/EVOH and (LDPE/[HNTs/carvacrol])/EVOH films demonstrated excellent antimicrobial efficacy against E. coli and Alternaria alternata in in vitro micro-atmosphere assays and against A. alternata and Rhizopus in cherry tomatoes, used as the food model. The results presented here suggest that sensitive essential oils, such as carvacrol, can be incorporated into plastic polymers constructed of tailored multiple layers, without losing their antimicrobial efficacy.
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Affiliation(s)
- Max Krepker
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Cong Zhang
- Center for Layered Polymeric Systems, Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106-7202, USA.
| | - Nadav Nitzan
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Ofer Prinz-Setter
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Naama Massad-Ivanir
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Andrew Olah
- Center for Layered Polymeric Systems, Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106-7202, USA.
| | - Eric Baer
- Center for Layered Polymeric Systems, Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106-7202, USA.
| | - Ester Segal
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
- The Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
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Ravensdale JT, Coorey R, Dykes GA. Integration of Emerging Biomedical Technologies in Meat Processing to Improve Meat Safety and Quality. Compr Rev Food Sci Food Saf 2018; 17:615-632. [PMID: 33350135 DOI: 10.1111/1541-4337.12339] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 01/11/2018] [Accepted: 01/12/2018] [Indexed: 01/16/2023]
Abstract
Modern-day processing of meat products involves a series of complex procedures designed to ensure the quality and safety of the meat for consumers. As the size of abattoirs increases, the logistical problems associated with large-capacity animal processing can affect the sanitation of the facility and the meat products, potentially increasing transmission of infectious diseases. Additionally, spoilage of food from improper processing and storage increases the global economic and ecological burden of meat production. Advances in biomedical and materials science have allowed for the development of innovative new antibacterial technologies that have broad applications in the medical industry. Additionally, new approaches in tissue engineering and nondestructive cooling of biological specimens could significantly improve organ transplantation and tissue grafting. These same strategies may be even more effective in the preservation and protection of meat as animal carcasses are easier to manipulate and do not have the same stringent requirements of care as living patients. This review presents potential applications of emerging biomedical technologies in the food industry to improve meat safety and quality. Future research directions investigating these new technologies and their usefulness in the meat processing chain along with regulatory, logistical, and consumer perception issues will also be discussed.
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Affiliation(s)
- Joshua T Ravensdale
- School of Public Health, Curtin Univ., Kent Street, Perth, Western Australia, 6102, Australia.,Curtin Health Innovation Research Inst., Curtin Univ., Kent Street, Perth, Western Australia, 6102, Australia
| | - Ranil Coorey
- School of Public Health, Curtin Univ., Kent Street, Perth, Western Australia, 6102, Australia.,Curtin Health Innovation Research Inst., Curtin Univ., Kent Street, Perth, Western Australia, 6102, Australia
| | - Gary A Dykes
- School of Public Health, Curtin Univ., Kent Street, Perth, Western Australia, 6102, Australia.,Curtin Health Innovation Research Inst., Curtin Univ., Kent Street, Perth, Western Australia, 6102, Australia
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Krepker M, Prinz-Setter O, Shemesh R, Vaxman A, Alperstein D, Segal E. Antimicrobial Carvacrol-Containing Polypropylene Films: Composition, Structure and Function. Polymers (Basel) 2018; 10:polym10010079. [PMID: 30966112 PMCID: PMC6415180 DOI: 10.3390/polym10010079] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 01/10/2018] [Accepted: 01/11/2018] [Indexed: 11/17/2022] Open
Abstract
Significant research has been directed toward the incorporation of bioactive plant extracts or essential oils (EOs) into polymers to endow the latter with antimicrobial functionality. EOs offer a unique combination of having broad antimicrobial activity from a natural source, generally recognized as safe (GRAS) recognition in the US, and a volatile nature. However, their volatility also presents a major challenge in their incorporation into polymers by conventional high-temperature-processing techniques. Herein, antimicrobial polypropylene (PP) cast films were produced by incorporating carvacrol (a model EO) or carvacrol, loaded into halloysite nanotubes (HNTs), via melt compounding. We studied the composition-structure-property relationships in these systems, focusing on the effect of carvacrol on the composition of the films, the PP crystalline phase and its morphology and the films’ mechanical and antimicrobial properties. For the first time, molecular dynamics simulations were applied to reveal the complex interactions between the components of these carvacrol-containing systems. We show that strong molecular interactions between PP and carvacrol minimize the loss of this highly-volatile EO during high-temperature polymer processing, enabling semi-industrial scale production. The resulting films exhibit outstanding antimicrobial properties against model microorganisms (Escherichia coli and Alternaria alternata). The PP/(HNTs-carvacrol) nanocomposite films, containing the carvacrol-loaded HNTs, display a higher level of crystalline order, superior mechanical properties and prolonged release of carvacrol, in comparison to PP/carvacrol blends. These properties are ascribed to the role of HNTs in these nanocomposites and their effect on the PP matrix and retained carvacrol content.
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Affiliation(s)
- Max Krepker
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Ofer Prinz-Setter
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Rotem Shemesh
- Carmel Olefins Ltd., P.O. Box 1468, Haifa 31014, Israel.
| | - Anita Vaxman
- Carmel Olefins Ltd., P.O. Box 1468, Haifa 31014, Israel.
| | - David Alperstein
- Department of Mechanical Engineering, Ort Braude College, P.O. Box 78, Karmiel 2161002, Israel.
| | - Ester Segal
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
- The Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
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34
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Carvacrol/clay hybrids loaded into in situ gelling films. Int J Pharm 2017; 531:676-688. [DOI: 10.1016/j.ijpharm.2017.06.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 06/05/2017] [Accepted: 06/10/2017] [Indexed: 01/27/2023]
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35
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Krepker M, Shemesh R, Danin Poleg Y, Kashi Y, Vaxman A, Segal E. Active food packaging films with synergistic antimicrobial activity. Food Control 2017. [DOI: 10.1016/j.foodcont.2017.01.014] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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36
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Halloysite Nanotubes/Polyethylene Nanocomposites for Active Food Packaging Materials with Ethylene Scavenging and Gas Barrier Properties. FOOD BIOPROCESS TECH 2017. [DOI: 10.1007/s11947-017-1860-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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37
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Wu Y, Yang Y, Liu H, Yao X, Leng F, Chen Y, Tian W. Long-term antibacterial protected cotton fabric coating by controlled release of chlorhexidine gluconate from halloysite nanotubes. RSC Adv 2017. [DOI: 10.1039/c7ra01464c] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An antibacterial HNTs/CG composite with controlled release was prepared, and used to coat cotton to obtain an antibacterial and biocompatible cotton fabric.
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Affiliation(s)
- Yu Wu
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Wuhan University
- Wuhan 430071
- P. R. China
| | - Yongtao Yang
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Wuhan University
- Wuhan 430071
- P. R. China
| | - Haoyang Liu
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Wuhan University
- Wuhan 430071
- P. R. China
| | - Xihui Yao
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Wuhan University
- Wuhan 430071
- P. R. China
| | - Fan Leng
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Wuhan University
- Wuhan 430071
- P. R. China
| | - Yun Chen
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Wuhan University
- Wuhan 430071
- P. R. China
| | - Weiqun Tian
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Wuhan University
- Wuhan 430071
- P. R. China
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38
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Cohen S, Laitman I, Lublin Tennenbaum T, Natan M, Banin E, Margel S. Engineering of crosslinked poly(isothiouronium methylstyrene) microparticles of narrow size distribution for antibacterial applications. POLYM ADVAN TECHNOL 2016. [DOI: 10.1002/pat.3873] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sarit Cohen
- Department of Chemistry, The Institute of Nanotechnology and Advanced Materials; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Inna Laitman
- Department of Chemistry, The Institute of Nanotechnology and Advanced Materials; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Tammy Lublin Tennenbaum
- Department of Chemistry, The Institute of Nanotechnology and Advanced Materials; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Michal Natan
- The Mina and Everard Goodman Faculty of Life Sciences, The Institute for Advanced Materials and Nanotechnology; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Ehud Banin
- The Mina and Everard Goodman Faculty of Life Sciences, The Institute for Advanced Materials and Nanotechnology; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Shlomo Margel
- Department of Chemistry, The Institute of Nanotechnology and Advanced Materials; Bar-Ilan University; Ramat-Gan 52900 Israel
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Cohen S, Gelber C, Natan M, Banin E, Corem-Salkmon E, Margel S. Synthesis and characterization of crosslinked polyisothiouronium methylstyrene nanoparticles of narrow size distribution for antibacterial and antibiofilm applications. J Nanobiotechnology 2016; 14:56. [PMID: 27388790 PMCID: PMC4936196 DOI: 10.1186/s12951-016-0208-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 06/20/2016] [Indexed: 12/04/2022] Open
Abstract
Background Isothiouronium salts are well known in their variety of antimicrobials activities. The use of polymeric biocides, polymers with antimicrobial activities, is expected to enhance the efficacy of some existing antimicrobial agents, thus minimizing the environmental problems accompanying conventional antimicrobials. Methods The current manuscript describes the synthesis and characterization of crosslinked polyisothiouronium methylstyrene (PITMS) nanoparticles (NPs) of narrow size distribution by dispersion co-polymerization of the monomer isothiouronium methylstyrene with the crosslinking monomer ethylene glycol dimetacrylate. Results and discussion The effect of total monomer, crosslinker and initiator concentrations on the size and size distribution of the formed NPs was also elucidated. The bactericidal activity of PITMS NPs of 67 ± 8 nm diameter was illustrated for 4 bacterial pathogens: Listeria innocua, Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus. In order to demonstrate the potential of these PITMS NPs as inhibitor of biofilm formation, polyethylene terephthalate (PET) films were thin-coated with the PITMS NPs. The formed PET/PITMS films reduced the viability of the biofilm of Listeria by 2 orders of magnitude, making the coatings excellent candidates for further development of non-fouling surfaces. In addition, PITMS NP coatings were found to be non-toxic in HaCaT cells. Conclusions The high antibacterial activity and effective inhibition of bacterial adsorption indicate the potential of these nanoparticles for development of new types of antibacterial and antibiofilm additives. Electronic supplementary material The online version of this article (doi:10.1186/s12951-016-0208-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sarit Cohen
- Department of Chemistry, The Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, 52900, Ramat Gan, Israel
| | - Chen Gelber
- Department of Chemistry, The Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, 52900, Ramat Gan, Israel
| | - Michal Natan
- The Mina and Everard Goodman Faculty of Life Sciences, The Institute for Advanced Materials and Nanotechnology, Bar-Ilan University, 52900, Ramat Gan, Israel
| | - Ehud Banin
- The Mina and Everard Goodman Faculty of Life Sciences, The Institute for Advanced Materials and Nanotechnology, Bar-Ilan University, 52900, Ramat Gan, Israel
| | - Enav Corem-Salkmon
- Department of Chemistry, The Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, 52900, Ramat Gan, Israel
| | - Shlomo Margel
- Department of Chemistry, The Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, 52900, Ramat Gan, Israel.
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40
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Campos-Requena VH, Rivas BL, Pérez MA, Pereira ED. Short- and long-term loss of carvacrol from polymer/clay nanocomposite film - a chemometric approach. POLYM INT 2016. [DOI: 10.1002/pi.5084] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Víctor H Campos-Requena
- Departamento de Polímeros, Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C Concepción Chile
| | - Bernabé L Rivas
- Departamento de Polímeros, Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C Concepción Chile
| | - Mónica A Pérez
- Departamento de Polímeros, Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C Concepción Chile
| | - Eduardo D Pereira
- Departamento de Química Analítica e Inorgánica, Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C Concepción Chile
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41
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Ganguly S, Das TK, Mondal S, Das NC. Synthesis of polydopamine-coated halloysite nanotube-based hydrogel for controlled release of a calcium channel blocker. RSC Adv 2016. [DOI: 10.1039/c6ra24153k] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A stimuli-triggered drug delivery vehicle has been synthesized by self-polymerization of dopamine (DA) on the outer surface of halloysite nanotubes (HNT) followed by gelationviaalginate.
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Affiliation(s)
- Sayan Ganguly
- Rubber Technology Centre
- Indian Institute of Technology
- Kharagpur 721301
- India
| | - Tushar Kanti Das
- Rubber Technology Centre
- Indian Institute of Technology
- Kharagpur 721301
- India
| | - Subhadip Mondal
- Rubber Technology Centre
- Indian Institute of Technology
- Kharagpur 721301
- India
| | - N. C. Das
- Rubber Technology Centre
- Indian Institute of Technology
- Kharagpur 721301
- India
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