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Lin K, Zhu YZ, Ma HW, Wu JC, Kong CN, Xiao Y, Liu HC, Zhao LL, Qin XL, Yang LF. Preparation, characterization, and application of gallic acid-mediated photodynamic chitosan-nanocellulose-based films. Int J Biol Macromol 2024; 277:134008. [PMID: 39032879 DOI: 10.1016/j.ijbiomac.2024.134008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
In this study, an active film composed of gallic acid (GA), chitosan (CS), and cellulose nanocrystals (CNC) was prepared using a solution casting method and synergistic photodynamic inactivation (PDI) technology. Characterization of the film showed that the CS-CNC-GA composite film had high transparency and UV-blocking ability. The addition of GA (0.2 %-1.0 %) significantly enhanced the mechanical properties, water resistance, and thermal stability of the film. The tensile strength increased up to 46.30 MPa, and the lowest water vapor permeability was 1.16 × e-12 g/(cm·s·Pa). The PDI-treated CS-CNC-GA1.0 composite film exhibited significantly enhanced antibacterial activity, with inhibition zone diameters of 31.83 mm against Staphylococcus aureus and 21.82 mm against Escherichia coli. The CS-CNC-GA composite film also showed good antioxidant activity. Additionally, the CS-CNC-GA1.0 composite film generated a large amount of singlet oxygen under UV-C light irradiation. It was found that using the CS-CNC-GA1.0 composite film for packaging and storage of oysters at 4 °C effectively delayed the increase in pH, total colony count, and lipid oxidation in oysters. In conclusion, the CS-CNC-GA composite film based on PDI technology has great potential for applications in the preservation of aquatic products.
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Affiliation(s)
- Kun Lin
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Yu-Zhang Zhu
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Marine and Biotechnology, Guangxi Minzu University, Nanning 530006, China
| | - Hua-Wei Ma
- Guangxi Academy of Fishery Sciences, Nanning 530021, China
| | - Jin-Cheng Wu
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Chao-Nan Kong
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Yang Xiao
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Hong-Cun Liu
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Marine and Biotechnology, Guangxi Minzu University, Nanning 530006, China
| | - Li-Lan Zhao
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Xiao-Lin Qin
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Li-Fang Yang
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China.
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Mutmainna I, Gareso PL, Suryani S, Tahir D. Microplastics from petroleum-based plastics and their effects: A systematic literature review and science mapping of global bioplastics production. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2024. [PMID: 38980276 DOI: 10.1002/ieam.4976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/27/2024] [Accepted: 06/10/2024] [Indexed: 07/10/2024]
Abstract
The use of bioplastics is a new strategy for reducing microplastic (MP) waste caused by petroleum-based plastics. This problem has received increased attention worldwide, leading to the development of large-scale bioplastic plants. The large amount of MPs in aquatic and terrestrial environments and the atmosphere has raised global concern. This article delves into the profound environmental impact of the increasing use of petroleum-based plastics, which contribute significantly to plastic waste and, as a consequence, to the increase in MPs. We conducted a comprehensive analysis to identify countries that are at the forefront of efforts to produce bioplastics to reduce MP pollution. In this article, we explain the development, degradation processes, and research trends of bioplastics derived from biological materials such as starch, chitin, chitosan, and polylactic acid (PLA). The findings pinpoint the top 10 countries demonstrating a strong commitment to reducing MP pollution through bioplastics. These nations included the United States, China, Spain, Canada, Italy, India, the United Kingdom, Malaysia, Belgium, and the Netherlands. This study underscores the technical and economic obstacles to large-scale bioplastic production. Integr Environ Assess Manag 2024;00:1-20. © 2024 SETAC.
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Affiliation(s)
| | | | - Sri Suryani
- Department of Physics, Hasanuddin University, Makassar, Indonesia
| | - Dahlang Tahir
- Department of Physics, Hasanuddin University, Makassar, Indonesia
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Zhang M, Yang B, Yuan Z, Sheng Q, Jin C, Qi J, Yu M, Liu Y, Xiong G. Preparation and performance testing of corn starch/pullulan/gallic acid multicomponent composite films for active food packaging. Food Chem X 2023; 19:100782. [PMID: 37780268 PMCID: PMC10534094 DOI: 10.1016/j.fochx.2023.100782] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/15/2023] [Accepted: 07/02/2023] [Indexed: 10/03/2023] Open
Abstract
The present study investigated the mechanical characteristics, hydrophobicity, antioxidant and antibacterial properties, FTIR, SEM and XRD of films fabricated with corn starch and pullulan (CS/PUL) by adding different concentrations of Gallic acid (GA) (0%, 0.5%, 1.0%, 1.5% w/v). The mechanical strength and opacity of CS/PUL films were enhanced by the addition of 1.0% GA. The water vapor permeability (WVP) of CS/PUL films was significantly lower in films with GA compared to those without (P < 0.05). The addition of GA, especially at concentrations of 1.0% and 1.5%, resulted in considerably better free radical scavenging activities on DPPH than films without GA (P < 0.05). Interestingly, the highest water contact angle (WCA) value was observed in films with 0.5% GA, indicating stronger hydrophobicity. Furthermore, the antibacterial capabilities of the films, particularly against E. coli and P. aeruginosa, improved with an increase in GA concentration. The results of FTIR, SEM and XRD analyses showed that GA was well distributed in the CS/PUL matrix.
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Affiliation(s)
| | | | - Zimeng Yuan
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Laboratory for Agriproducts Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Qi Sheng
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Laboratory for Agriproducts Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Changchun Jin
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Laboratory for Agriproducts Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Jun Qi
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Laboratory for Agriproducts Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Manman Yu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Laboratory for Agriproducts Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Yingnan Liu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Laboratory for Agriproducts Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Guoyuan Xiong
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Laboratory for Agriproducts Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
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Marand SA, Almasi H, Amjadi S, Alamdari NG, Salmasi S. Ixiolirion tataricum mucilage/chitosan based antioxidant films activated by free and nanoliposomal fennel essential oil. Int J Biol Macromol 2023; 230:123119. [PMID: 36603723 DOI: 10.1016/j.ijbiomac.2022.123119] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/19/2022] [Accepted: 12/29/2022] [Indexed: 01/03/2023]
Abstract
Ixiolirion tataricum mucilage (ITM) was characterized and applied in fabrication of ITM/chitosan (CH) blend films activated by Foeniculum vulgare essential oil (FEO) in free and nanoliposomal forms. Uniform smooth surface structure, viscoelastic solid-like behavior and Newtonian nature of ITM were confirmed by morphological and rheological analyses. The prepared FEO nanoliposomes (FEO-NLPs) showed desirable properties in terms of particle size (57.2 nm), polydispersity index (0.243), zeta-potential (-17.6 mV), and encapsulation efficiency (85.2 %). The enhancing effects of FEO-NLPs and the adverse effects of free FEO on the crystalline, morphological and structural properties of films were confirmed by XRD, FE-SEM and ATR-FTIR tests. FEO-NLPs loaded films had better mechanical, thermal, water and gas barrier and antioxidant properties than neat film. Analysis also indicated the high controlled release of FEO from the films containing the nanoliposomal form of FEO. The films containing free FEO showed higher antibacterial activity against E. coli and S. aureus in comparison with FEO-NLPs loaded ones. The results showed the potential of FEO-NLPs loaded ITM/CH films for antioxidant food packaging applications.
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Affiliation(s)
- Sina Ardebilchi Marand
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, P.O. Box 57561-51818, Iran
| | - Hadi Almasi
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, P.O. Box 57561-51818, Iran.
| | - Sajed Amjadi
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, P.O. Box 57561-51818, Iran
| | - Nima Ghadiri Alamdari
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, P.O. Box 57561-51818, Iran
| | - Sorour Salmasi
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, P.O. Box 57561-51818, Iran
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Casalini S, Giacinti Baschetti M. The use of essential oils in chitosan or cellulose-based materials for the production of active food packaging solutions: a review. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:1021-1041. [PMID: 35396735 PMCID: PMC10084250 DOI: 10.1002/jsfa.11918] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 03/21/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
In recent decades, interest in sustainable food packaging systems with additional functionality, able to increase the shelf life of products, has grown steadily. Following this trend, the present review analyzes the state of the art of this active renewable packaging. The focus is on antimicrobial systems containing nanocellulose and chitosan, as support for the incorporation of essential oils. These are the most sustainable and readily available options to produce completely natural active packaging materials. After a brief overview of the different active packaging technologies, the main features of nanocellulose, chitosan, and of the different essential oils used in the field of active packaging are introduced and described. The latest findings about the nanocellulose- and chitosan-based active packaging are then presented. The antimicrobial effectiveness of the different solutions is discussed, focusing on their effect on other material properties. The effect of the different inclusion strategies is also reviewed considering both in vivo and in vitro studies, in an attempt to understand more promising solutions and possible pathways for further development. In general, essential oils are very successful in exerting antimicrobial effects against the most diffused gram-positive and gram-negative bacteria, and affecting other material properties (tensile strength, water vapor transmission rate) positively. Due to the wide variety of biopolymer matrices and essential oils available, it is difficult to create general guidelines for the development of active packaging systems. However, more attention should be dedicated to sensory analysis, release kinetics, and synergetic action of different essential oils to optimize the active packaging on different food products. © 2022 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Sara Casalini
- Department of Civil, Chemical, Environmental and Materials Engineering‐DICAMUniversity of BolognaBolognaItaly
| | - Marco Giacinti Baschetti
- Department of Civil, Chemical, Environmental and Materials Engineering‐DICAMUniversity of BolognaBolognaItaly
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Ji X, Peng X, Long X, Zhang Y, Lin J, Yin J, Zhang R, Zhao G. Laccase-mediated functionalization of natamycin by gallic acids for the therapeutic effect on Aspergillus fumigatus keratitis. Eur J Pharmacol 2022; 926:175041. [PMID: 35597265 DOI: 10.1016/j.ejphar.2022.175041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 11/03/2022]
Abstract
To improve the therapeutic effect of natamycin on fungal keratitis (FK), the grafted derivatives of natamycin and gallic acid were obtained, and the effects of the grafted derivatives on Aspergillus fumigatus (A. fumigatus) keratitis were investigated. The structure of natamycin grafted with gallic acid was identified by FT-IR and UV-Vis, and the successful synthesis of Gallic-Natamycin (GA-NAT) was proved. CCK-8 and the Draize eye test showed that GA-NAT had less cytotoxicity. Then, through in vitro antibacterial experiments such as minimum inhibitory concentration (MIC), adhesion, biofilm formation, and calcium fluorescence staining and in vivo experiments such as clinical score and plate counting, the results showed that GA-NAT had similar antifungal activity to natamycin, but had a better therapeutic effect than natamycin. Myeloperoxidase assay and immunofluorescence staining also showed that GA-NAT significantly inhibited neutrophil recruitment and activity. Moreover, It was further found that GA-NAT could inhibit the mRNA and protein expressions of LOX-1, TNF-α, and IL-1β. These results indicated that GA-NAT inhibited the fungal growth, reduced the neutrophil infiltration into cornea, and down-regulated the expression of inflammatory factors in lesions, which provides a new choice for FK treatment.
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Affiliation(s)
- Xiaoyue Ji
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University NO. 16 Jiangsu Road, Qingdao, Shandong Province, 266000, China.
| | - Xudong Peng
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University NO. 16 Jiangsu Road, Qingdao, Shandong Province, 266000, China; Department of Ophthalmology, University of Washington, Seattle, WA, 98104, USA.
| | - Xiaojing Long
- State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, Shandong Province, 266071, China.
| | - Yingxue Zhang
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Detroit, MI, 40201, USA.
| | - Jing Lin
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University NO. 16 Jiangsu Road, Qingdao, Shandong Province, 266000, China.
| | - Jiao Yin
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University NO. 16 Jiangsu Road, Qingdao, Shandong Province, 266000, China.
| | - Ranran Zhang
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University NO. 16 Jiangsu Road, Qingdao, Shandong Province, 266000, China.
| | - Guiqiu Zhao
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University NO. 16 Jiangsu Road, Qingdao, Shandong Province, 266000, China.
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Serbezeanu D, Bercea M, Butnaru M, Enache AA, Rîmbu CM, Vlad‐Bubulac T. Development of histamine reinforced poly(vinyl alcohol)/chitosan blended films for potential biomedical applications. J Appl Polym Sci 2021. [DOI: 10.1002/app.51912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Diana Serbezeanu
- Department of Polycondensation and Thermally Stable Polymers “Petru Poni” Institute of Macromolecular Chemistry Iasi Romania
| | - Maria Bercea
- Department of Natural Polymers, Bioactive and Biocompatible Materials “Grigore T. Popa” University of Medicine and Pharmacy Iasi Romania
| | - Maria Butnaru
- Department of Natural Polymers, Bioactive and Biocompatible Materials “Grigore T. Popa” University of Medicine and Pharmacy Iasi Romania
| | | | - Cristina Mihaela Rîmbu
- Department of Public Health Faculty of Veterinary Medicine “Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine Iasi Romania
| | - Tăchiță Vlad‐Bubulac
- Department of Polycondensation and Thermally Stable Polymers “Petru Poni” Institute of Macromolecular Chemistry Iasi Romania
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Properties of phenolic acid-chitosan composite films and preservative effect on Penaeus vannamei. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130531] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Haghighi H, Licciardello F, Fava P, Siesler HW, Pulvirenti A. Recent advances on chitosan-based films for sustainable food packaging applications. Food Packag Shelf Life 2020. [DOI: 10.1016/j.fpsl.2020.100551] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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10
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Oliveira G, Wojeicchowski JP, Farias FO, Igarashi-Mafra L, de Pelegrini Soares R, Mafra MR. Enhancement of biomolecules solubility in aqueous media using designer solvents as additives: An experimental and COSMO-based models' approach. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114266] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Liu J, Wang S, Fu J, Ding X, Zhao J. Zn 2+ adsorption from wastewater using a chitosan/β-cyclodextrin-based composite membrane. J Food Biochem 2020; 44:e13483. [PMID: 33047344 DOI: 10.1111/jfbc.13483] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 08/29/2020] [Accepted: 08/30/2020] [Indexed: 11/29/2022]
Abstract
In this study, a β-cyclodextrin polymer (β-CDP) was synthesized by pretreating β-cyclodextrin (β-CD) with citric acid (CA), and then, chitosan (CTS) and β-CDP were cross-linked to prepare a biomass-based (CTS/β-CDP) composite membrane. The effects of the preparation conditions in sodium hydroxide on the adsorption amount and adsorption rate of zinc ions (Zn2+ ) from simulated wastewater were investigated. The results showed that a maximum adsorption amount 123.7 μg/g and adsorption rate 94.14% of Zn2+ were obtained when the reaction between CTS and β-CDP was performed at 50°C, the concentration of acetic acid was 2%, dissolving β-CDP water dosage was 30 ml, and the soaking time in sodium hydroxide was 1 hr. Comparative studies on the adsorption of CTS membranes, β-CD, β-CDP, and CTS/β-CDP composite membrane showed that the CTS/β-CDP composite membrane had the highest Zn2+ adsorption efficiency. The CTS/β-CDP composite membrane was characterized by FTIR, SEM, and XRD. Characteristic absorption peaks of CTS and β-CDP appeared in the FTIR spectra of the CTS/β-CDP composite membrane, confirming its synthesis. The SEM images showed that the surface of the composite membrane was rougher than the porous CTS membrane, which increased the number of adsorption sites and the adsorption efficiency. XRD patterns showed that the CTS/β-CDP composite membrane was amorphous, indicating that β-CDP changed the crystal structure of the CTS. The swelling degree and transmittance of the CTS/β-CDP composite membrane were lower than the CTS membrane, which should be conducive to recycling after wastewater treatment. PRACTICAL APPLICATIONS: Industrial wastewater often contains heavy metal ions such as Zn2+ , which are difficult to degrade and are highly toxic, and direct wastewater discharge can greatly harm the ecosystems and humans. In this study, CTS and β-CD were cross-linked to synthesize a biomass membrane for adsorbing Zn2+ to reduce the Zn2+ content in wastewater via adsorption.The results show that the CTS/β-CDP composite membrane can be applied to small-scale wastewater treatment fields such as food and chemical industry. After the Zn2+ -containing wastewater underwent pretreatment, the composite membrane was placed into the wastewater for effective adsorption, which could achieve high adsorption efficiency. The process played a major role in effectively treating Zn2+ and other difficult to degrade heavy metal ions; thereby, simplifying Zn2+ -containing wastewater. The treatment process reduces the investment and operating costs of sewage treatment, and at the same time, has a significant removal effect, and hence, can meet the requirements of environmental protection discharge.
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Affiliation(s)
- Jiaxin Liu
- College of Food Science and Engineering, Changchun University, Changchun, China
| | - Siqi Wang
- College of Food Science and Engineering, Changchun University, Changchun, China
| | - Jingyi Fu
- College of Food Science and Engineering, Changchun University, Changchun, China
| | - Xiuqing Ding
- College of Food Science and Engineering, Changchun University, Changchun, China
| | - Jun Zhao
- College of Food Science and Engineering, Changchun University, Changchun, China
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12
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Using α-chitin nanocrystals to improve the final properties of poly (vinyl alcohol) films with Origanum vulgare essential oil. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109227] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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13
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Effect of carvacrol in the properties of films based on poly (vinyl alcohol) with different molecular characteristics. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109282] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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14
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Effect of plasticizer and surfactant on the properties of poly(vinyl alcohol)/chitosan films. Int J Biol Macromol 2020; 164:2100-2107. [PMID: 32758608 DOI: 10.1016/j.ijbiomac.2020.08.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/28/2020] [Accepted: 08/01/2020] [Indexed: 12/11/2022]
Abstract
The objective of this study was to develop eco-friendly films based on poly(vinyl alcohol) (PVA) and chitosan (CTS) with the addition of plasticizer (glycerol or sorbitol) and surfactant (cocamidopropyl betaine). The properties of the obtained polymeric films were determined by contact angle measurements, attenuated total reflection infrared spectroscopy (ATR-FTIR), atomic force microscopy (AFM), mechanical tests, and moisture content analysis. The results indicated that four-component blends had high surface hydrophilicity and surface roughness due to the presence of the surfactant. Glycerol incorporation into PVA/CTS blends resulted in higher flexibility and greater water absorption capacity of the three- and four-component polymeric blends compared with these blends with sorbitol. By contrast, the addition of the surfactant to the materials is essential for their application in personal hygiene products as disposable wipes.
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Liu J, Yong H, Liu Y, Bai R. Recent advances in the preparation, structural characteristics, biological properties and applications of gallic acid grafted polysaccharides. Int J Biol Macromol 2020; 156:1539-1555. [DOI: 10.1016/j.ijbiomac.2019.11.202] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 11/17/2019] [Accepted: 11/25/2019] [Indexed: 01/02/2023]
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16
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Li K, Zhu J, Guan G, Wu H. Preparation of chitosan-sodium alginate films through layer-by-layer assembly and ferulic acid crosslinking: Film properties, characterization, and formation mechanism. Int J Biol Macromol 2018; 122:485-492. [PMID: 30385335 DOI: 10.1016/j.ijbiomac.2018.10.188] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/17/2018] [Accepted: 10/27/2018] [Indexed: 12/16/2022]
Abstract
Chitosan-alginate films were prepared through layer-by-layer assembly combined with ferulic acid crosslinking. Their mechanical properties, opacity, and hydrophobicity were compared to films prepared by direct mixing, crosslinking alone, and LBL assembly alone. Thermogravimetric analysis, X-ray diffraction, scanning electron microscopy and Fourier-transform infrared spectroscopy were used to characterize the films and analyze their formation mechanism. The results indicated that the layer-by-layer assembly and ferulic acid crosslinking combination increased the tensile strength and light-blocking ability of the films. In addition, the films had a lower water vapor transmission rate, swelling degree, and water solubility, as well as higher hydrophobicity. Scanning electron microscopy showed a good compatibility between the film components of the film prepared by the combination technique. The structural characterization results revealed some strong interactions among the amino, carboxyl, and hydroxyl groups of the ferulic acid, chitosan, and sodium alginate in the film. The driving force for film formation was the generation of non-covalent bonds among the film components rather than covalent bonds.
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Affiliation(s)
- Kangjing Li
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong 266109, People's Republic of China
| | - Junxiang Zhu
- Marine Fisheries Research Institute of Zhejiang, Zhoushan, Zhejiang 316021, People's Republic of China; Marine and Fisheries Research Institute, Zhejiang Ocean University, Zhoushan, Zhejiang 316021, People's Republic of China
| | - Guilin Guan
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong 266109, People's Republic of China
| | - Hao Wu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong 266109, People's Republic of China.
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17
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Bîrsan M, Apostu M, Todoran N, Antonoaea P, Rusu A, Ciurba A. Development of Dermal Films Containing Miconazole Nitrate. Molecules 2018; 23:E1640. [PMID: 29976876 PMCID: PMC6100062 DOI: 10.3390/molecules23071640] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/02/2018] [Accepted: 07/04/2018] [Indexed: 11/16/2022] Open
Abstract
This study aims to develop new antifungal dermal films based on their mechanical properties (elongation, adhesion, behaviour towards vapour moisture) and the in vitro availability of miconazole nitrate, used as a pharmaceutical active ingredient in various concentrations. The three polymeric films prepared were translucent or shiny, with the surface of 63.585 cm², 0.20⁻0.30 mm thickness, and content of miconazole nitrate of 3.931 or 15.726 mg·cm². The mechanical resistance and elongation tests demonstrated that the two films based on hydroxyethyl cellulose (HEC) polymer were more elastic than the one prepared with hydroxypropyl methylcellulose (HPMC). The vapour water absorption and vapour water loss capacity of the films revealed that the HPMC film did not dry very well in the process of preparation by the evaporation of the solvent technique, unlike the HEC films that jellified more evenly in water and had higher drying capacity at 40 °C. The in vitro availability of miconazole nitrate from dermal films was evaluated using the Franz diffusion cell method, through a synthetic membrane (Ø 25 mm × 0.45 µm) and acceptor media with pH 7.4 (phosphate buffer and sodium lauryl sulphate 0.045%), resulting a release rate of up to 70%.
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Affiliation(s)
- Magdalena Bîrsan
- Faculty of Pharmacy, "Grigore T. Popa", University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Mihai Apostu
- Faculty of Pharmacy, "Grigore T. Popa", University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Nicoleta Todoran
- Faculty of Pharmacy, University of Medicine and Pharmacy of Tîrgu Mureș, Târgu Mureş 540001, Romania.
| | - Paula Antonoaea
- Faculty of Pharmacy, University of Medicine and Pharmacy of Tîrgu Mureș, Târgu Mureş 540001, Romania.
| | - Aura Rusu
- Faculty of Pharmacy, University of Medicine and Pharmacy of Tîrgu Mureș, Târgu Mureş 540001, Romania.
| | - Adriana Ciurba
- Faculty of Pharmacy, University of Medicine and Pharmacy of Tîrgu Mureș, Târgu Mureş 540001, Romania.
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