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Zhou Y, Han Y, Xu J, Han W, Gu F, Sun K, Huang X, Cai Z. Strong, flexible and UV-shielding composite polyvinyl alcohol films with wood cellulose skeleton and lignin nanoparticles. Int J Biol Macromol 2023; 232:123105. [PMID: 36603717 DOI: 10.1016/j.ijbiomac.2022.12.324] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 12/19/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023]
Abstract
The development of high-performance composite films using biomass materials have become a sought-after direction. Herein, a green method to fabricate strong, flexible and UV-shielding biological composite film from wood cellulose skeleton (WCS), lignin nanoparticles (LNPs) and polyvinyl alcohol (PVA) was described. In the work, WCS and LNPs were prepared by chemical treatment of wood veneer and Enzymatic lignin, respectively. Then, WCS was infiltrated with the LNPs/PVA mixtures and dried to obtain composite films. WCS enhanced the mechanical properties of the composite films, the tensile stress reached to 85.8 MPa and the tensile strain reached to 6.39 %. The composite films with LNPs blocked over 98 % of UV-light, the water absorption decreased by 30 %, and the thermal stabilities were also improved. These findings would provide some references for exploring high quality biological composite films.
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Affiliation(s)
- Yu Zhou
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Yanming Han
- Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100089, China.
| | - Jianan Xu
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Wang Han
- College of Material Science and Art Design, Inner Mongolia Agricultural University, Hohhot City 010018, China
| | - Feng Gu
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Kaiyong Sun
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Xujuan Huang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Zhaosheng Cai
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
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2
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Hemicellulose: Structure, Chemical Modification, and Application. Prog Polym Sci 2023. [DOI: 10.1016/j.progpolymsci.2023.101675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
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3
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Ho TM, Lehtonen M, Räikkönen H, Kilpeläinen PO, Mikkonen KS. Wood hemicelluloses as effective wall materials for spray-dried microcapsulation of polyunsaturated fatty acid-rich oils. Food Res Int 2023; 164:112333. [PMID: 36737926 DOI: 10.1016/j.foodres.2022.112333] [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: 09/08/2022] [Revised: 11/30/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
The most commonly-used and effective wall materials (WMs) for spray-dried microencapsulation of bioactive compounds are either costly, or derived from unsustainable sources, which lead to an increasing demand for alternatives derived from sustainable and natural sources, with low calories and low cost. Wood hemicelluloses obtained from by-products of forest industries appear to be attractive alternatives as they have been reported to have good emulsifying properties, low viscosity at high concentrations, high heat stability and low heat transfer. Here, we investigated the applicability of spruce galactoglucomannans (GGM) and birch glucuronoxylans (GX), to encapsulate flaxseed oil (FO, polyunsaturated fatty acid-rich plant based oil) by spray drying; and the results were compared to those of the highly effective WM, gum Arabic (GA). It was found that depending on solid ratios of WM:FO (1:1, 3:1 and 5:1), encapsulation efficiency of GGM was 88-96%, and GX was 63-98%. At the same encapsulation ratio, both GGM and GX had higher encapsulation efficiency than GA (49-92%) due to their ability to produce feed emulsions with a smaller oil droplet size and higher physical stability. In addition, the presence of phenolic residues in GGM and GX powders enabled them to have a greater ability to protect oil from oxidation during spray drying than GA. Physiochemical properties of encapsulated powders including thermal properties, morphology, molecular structure, particle size and water adsorption intake are also investigated. The study has explored a new value-added proposition for wood hemicelluloses which can be used as effective WMs in the production of microcapsules of polyunsaturated fatty acid-rich oils for healthy and functional products in food, pharmaceutical and cosmetic industries.
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Affiliation(s)
- Thao M Ho
- Department of Food and Nutrition, University of Helsinki, P.O. Box 66 FIN-00014 HU, Finland; Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, P.O. Box 65 FIN-00014 HU, Finland.
| | - Mari Lehtonen
- Department of Food and Nutrition, University of Helsinki, P.O. Box 66 FIN-00014 HU, Finland
| | - Heikki Räikkönen
- Faculty of Pharmacy, University of Helsinki, P.O. Box 56 FIN-00014 HU, Finland
| | - Petri O Kilpeläinen
- Biorefinery and Bioproducts, Production Systems Unit - Natural Resources Institute Finland (Luke), Viikinkaari 9, FI-00790 Helsinki, Finland
| | - Kirsi S Mikkonen
- Department of Food and Nutrition, University of Helsinki, P.O. Box 66 FIN-00014 HU, Finland; Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, P.O. Box 65 FIN-00014 HU, Finland
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4
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Yong Q, Xu J, Wang L, Tirri T, Gao H, Liao Y, Toivakka M, Xu C. Synthesis of galactoglucomannan-based latex via emulsion polymerization. Carbohydr Polym 2022; 291:119565. [DOI: 10.1016/j.carbpol.2022.119565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/27/2022] [Accepted: 04/29/2022] [Indexed: 11/02/2022]
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5
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Agarwal A, Shaida B, Rastogi M, Singh NB. Food Packaging Materials with Special Reference to Biopolymers-Properties and Applications. CHEMISTRY AFRICA 2022. [PMCID: PMC9389508 DOI: 10.1007/s42250-022-00446-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Food is an important material for survival. The increasing world population, urbanization, and globalization are responsible for more food. This has increased challenges in food storage and safety. Therefore, it is necessary to preserve food by suitable packaging materials. The packaging materials are useful for giving longer life to the food and improving quality during transportation, storage and distribution. Innovations and developments in food packaging, have become very important in the food industry. Variety of packaging materials such as plastics, paper, metal, and glass are used in food packaging. Most widely used packaging materials are non-biodegradable plastics but these are harmful to environment and human health. Therefore, the food industry is in search of environment friendly replacement of non-biodegradable plastics by biodegradable plastics. However, no systematic literature is available on the subject, so there is a need to summarise the available information in a systematic way. Polymer packaging materials with special reference to biodegradable plastics have been discussed in detail. Different type of biodegradable plastics with their functionality and applications in food packaging have been summarised. Literature available has shown that biodegradable plastics are much better for food packaging as compared to other packaging materials. Increasing fundamental research in the use of biodegradable polymers in food packaging and effort to protect the environment, requires deep understanding and there are lot of challenges for commercialization, which are to be tackled. All these aspects have been discussed in this review article.
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6
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Zhao B, Li H, Su Y, Tian K, Zou Z, Wang W. Synthesis and Anticancer Activity of Bagasse Xylan/Resveratrol Graft-Esterified Composite Nanoderivative. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5166. [PMID: 35897598 PMCID: PMC9330801 DOI: 10.3390/ma15155166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/14/2022] [Accepted: 07/19/2022] [Indexed: 12/04/2022]
Abstract
Biomass materials are high-quality raw materials for the preparation of natural, green and highly active functional materials due to their rich active groups, wide sources and low toxicity. Bagasse xylan (BX) and resveratrol (Res) were used as raw materials to introduce ethylene glycol dimethacrylate (EGDMA) via grafting reaction to obtain the intermediate product BX/Res-g-EGDMA. The intermediate was esterified with 3-carboxyphenylboronic acid (3-CBA) to obtain the target product 3-CBA-BX/Res-g-EGDMA. The BX/Res-composite-modified nanoderivative with antitumor activity was synthesized with the nanoprecipitation method. The effects of the reaction conditions on the grafting rate (G) of BX/Res-g-EGDMA and the degree of substitution (DS) of 3-CBA-BX/Res-g-EGDMA were investigated using single-factor experiments. The results showed that under the optimized process conditions, G and DS reached 142.44% and 0.485, respectively. The product was characterized with FTIR, XRD, TG-FTC, 1H NMR and SEM, and its anticancer activity was simulated and tested. The results showed that 3-CBA-BX/Res-g-EGDMA had a spherical structure with an average particle size of about 100 nm and that its crystalline structure and thermal stability were different from those of the raw materials. In addition, 3-CBA-BX/Res-g-EGDMA showed the best docking activity with 2HE7 with a binding free energy of -6.3 kJ/mol. The inhibition rate of 3-CBA-BX/Res-g-EGDMA on MGC80-3 (gastric cancer cells) reached 36.71 ± 4.93%, which was 18 times higher than that of BX. Therefore, this material could be a potential candidate for biomedical applications.
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Affiliation(s)
- Bin Zhao
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China; (B.Z.); (Y.S.); (K.T.); (Z.Z.)
| | - Heping Li
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China; (B.Z.); (Y.S.); (K.T.); (Z.Z.)
| | - Yue Su
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China; (B.Z.); (Y.S.); (K.T.); (Z.Z.)
| | - Kexin Tian
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China; (B.Z.); (Y.S.); (K.T.); (Z.Z.)
| | - Zhiming Zou
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China; (B.Z.); (Y.S.); (K.T.); (Z.Z.)
| | - Wenli Wang
- College of Textile and Clothing Engineering, China National Textile and Apparel Council Key Laboratory of Natural Dyes, Soochow University, Suzhou 215123, China
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Hu Y, Hao X, Chen G, Bian J, Li M, Peng F. Self-Standing, Photothermal-Actuating, and Motion-Monitoring Janus Films One-Pot Synthesized by Green Carboxymethyl Glucomannan/Liquid Metal Nanoinks. ACS APPLIED MATERIALS & INTERFACES 2022; 14:23717-23725. [PMID: 35544747 DOI: 10.1021/acsami.2c04796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Downsizing bulk liquid metals (LM) at the nanometer scale with biocompatibility and multifunction is a key process for electronic or medical applications. Here, we report a stable and green LM aqueous colloidal ink by wrapping eutectic gallium-indium alloys (EGaIn) with carboxymethyl glucomannan (CGM) derived from radiata pine chip, which is capable of being prepared into a free-standing, photothermal-actuating, and motion-monitoring Janus film. With the assistance of CGM, the bulk EGaIn was ultrasonicated into stable nanodroplets (∼500 nm) with a typical "core-shell" structure, in which the colloidal inks can be stored for more than 1 week under room temperature. The stable CGM/EGaIn inks can be patterned on different substrates to form coating layers or self-assembled into free-standing Janus films with high mechanical strength and modulus (∼94 MPa and ∼3.8 GPa) by density deposition. Such a Janus film with anisotropic thermal conductivity made it a potential photothermal actuator. In addition, the biocompatible film demonstrated both high conductivity and large resistance variation in response to strain change (gauge factor >500), allowing for human motion monitoring. This work provides a new prospect for the development of biocompatible and high-performance nano-LM materials.
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Affiliation(s)
- Yajie Hu
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Xiang Hao
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Gegu Chen
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Jing Bian
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Mingfei Li
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Feng Peng
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
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8
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Deralia PK, Sonker AK, Lund A, Larsson A, Ström A, Westman G. Side chains affect the melt processing and stretchability of arabinoxylan biomass-based thermoplastic films. CHEMOSPHERE 2022; 294:133618. [PMID: 35066072 DOI: 10.1016/j.chemosphere.2022.133618] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 01/03/2022] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
Hydrophobization of hemicellulose causes melt processing and makes them stretchable thermoplastics. Understanding how native and/or appended side chains in various hemicelluloses after chemical modification affect melt processing and material properties can help in the development of products for film packaging and substrates for stretchable electronics applications. Herein, we describe a one-step and two-step strategy for the fabrication of flexible and stretchable thermoplastics prepared by compression molding of two structurally different arabinoxylans (AX). For one-step synthesis, the n-butyl glycidyl ether epoxide ring was opened to the hydroxyl group, resulting in the introduction of alkoxide side chains. The first step in the two-step synthesis was periodate oxidation. Because the melt processability for AXs having low arabinose to xylose ratio (araf/xylp<0.5) have been limited, two structurally distinct AXs extracted from wheat bran (AXWB, araf/xylp = 3/4) and barley husk (AXBH, araf/xylp = 1/4) were used to investigate the effect of araf/xylp and hydrophobization on the melt processability and properties of the final material. Melt compression processability was achieved in AXBH derived samples. DSC and DMA confirmed that the thermoplastics derived from AXWB and AXBH had dual and single glass transition (Tg) characteristics, respectively, but the thermoplastics derived from AXBH had lower stretchability (maximum 160%) compared to the AXWB samples (maximum 300%). Higher araf/xylp values, and thus longer alkoxide side chains in AXWB-derived thermoplastics, explain the stretchability differences.
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Affiliation(s)
- Parveen Kumar Deralia
- Chemistry and Biochemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296, Gothenburg, Sweden.
| | - Amit Kumar Sonker
- Chemistry and Biochemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296, Gothenburg, Sweden
| | - Anja Lund
- Applied Chemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296, Gothenburg, Sweden
| | - Anette Larsson
- Applied Chemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296, Gothenburg, Sweden
| | - Anna Ström
- Applied Chemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296, Gothenburg, Sweden
| | - Gunnar Westman
- Chemistry and Biochemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, SE-41296, Gothenburg, Sweden.
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Nypelö T, Fredriksson J, Arumughan V, Larsson E, Hall SA, Larsson A. N2O–Assisted Siphon Foaming of Modified Galactoglucomannans With Cellulose Nanofibers. FRONTIERS IN CHEMICAL ENGINEERING 2021. [DOI: 10.3389/fceng.2021.756026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Foaming of most bio-based polymers is challenged by low pore formation and foam stability. At the same time, the developing utilization of bio-based materials for the circular economy is placing new demands for easily processable, low-density materials from renewable raw materials. In this work, we investigate cellulose nanofiber (CNF) foams in which foaming is facilitated with wood-based hemicelluloses, galactoglucomannans (GGMs). Interfacial activity of the GGM is modulated via modification of the molecule’s amphiphilicity, where the surface tension is decreased from approximately 70 to 30 mN m−1 for unmodified and modified GGM, respectively. The chemical modification of GGMs by substitution with butyl glycidyl ether increased the molecule’s hydrophobicity and interaction with the nanocellulose component. The highest specific foam volume using 1 wt% CNF was achieved when modified GGM was added (3.1 ml g−1), compared to unmodified GGM with CNF (2.1 ml g−1). An amount of 96 and 98% of the GGM and GGM-BGE foams were lost after 15 min of foaming while the GGM and GGM-BGE with cellulose nanofibers lost only 33 and 28% of the foam respectively. In the case of GGM-BGE, the foam stability increased with increasing nanofiber concentration. This suggests that the altered hydrophobicity facilitated increased foam formation when the additive was incorporated in the CNF suspension and foamed with nitrous oxide (N2O). Thus, the hydrophobic character of the modified GGM was a necessity for foam formation and stability while the CNFs were needed for generating a self-standing foam structure.
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de Vries L, Guevara-Rozo S, Cho M, Liu LY, Renneckar S, Mansfield SD. Tailoring renewable materials via plant biotechnology. BIOTECHNOLOGY FOR BIOFUELS 2021; 14:167. [PMID: 34353358 PMCID: PMC8344217 DOI: 10.1186/s13068-021-02010-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 07/06/2021] [Indexed: 05/03/2023]
Abstract
Plants inherently display a rich diversity in cell wall chemistry, as they synthesize an array of polysaccharides along with lignin, a polyphenolic that can vary dramatically in subunit composition and interunit linkage complexity. These same cell wall chemical constituents play essential roles in our society, having been isolated by a variety of evolving industrial processes and employed in the production of an array of commodity products to which humans are reliant. However, these polymers are inherently synthesized and intricately packaged into complex structures that facilitate plant survival and adaptation to local biogeoclimatic regions and stresses, not for ease of deconstruction and commercial product development. Herein, we describe evolving techniques and strategies for altering the metabolic pathways related to plant cell wall biosynthesis, and highlight the resulting impact on chemistry, architecture, and polymer interactions. Furthermore, this review illustrates how these unique targeted cell wall modifications could significantly extend the number, diversity, and value of products generated in existing and emerging biorefineries. These modifications can further target the ability for processing of engineered wood into advanced high performance materials. In doing so, we attempt to illuminate the complex connection on how polymer chemistry and structure can be tailored to advance renewable material applications, using all the chemical constituents of plant-derived biopolymers, including pectins, hemicelluloses, cellulose, and lignins.
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Affiliation(s)
- Lisanne de Vries
- Department of Wood Science, Faculty of Forestry, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
- US Department of Energy (DOE) Great Lakes Bioenergy Research Center, the Wisconsin Energy Institute, University of Wisconsin - Madison, Madison, WI , 53726, USA
| | - Sydne Guevara-Rozo
- Department of Wood Science, Faculty of Forestry, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - MiJung Cho
- Department of Wood Science, Faculty of Forestry, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Li-Yang Liu
- Department of Wood Science, Faculty of Forestry, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Scott Renneckar
- Department of Wood Science, Faculty of Forestry, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Shawn D Mansfield
- Department of Wood Science, Faculty of Forestry, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.
- US Department of Energy (DOE) Great Lakes Bioenergy Research Center, the Wisconsin Energy Institute, University of Wisconsin - Madison, Madison, WI , 53726, USA.
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Sánchez J, Dax D, Tapiero Y, Xu C, Willför S. Bio-Based Hydrogels With Ion Exchange Properties Applied to Remove Cu(II), Cr(VI), and As(V) Ions From Water. Front Bioeng Biotechnol 2021; 9:656472. [PMID: 34095097 PMCID: PMC8173149 DOI: 10.3389/fbioe.2021.656472] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 04/06/2021] [Indexed: 12/02/2022] Open
Abstract
Hydrogels with ion exchange properties were synthesized from compounds derived from wood biopolymer hemicellulose and from commercial vinyl monomers to be tested as active materials for the removal of Cu(II), Cr(VI), and As(V) ions. The hemicellulose O-acetyl galactoglucomannan (GGM) was used as the precursor material, and through a transesterification reaction, GGM was converted into a macromonomer GGM–glycidyl methacrylate (GGM-GMA). Subsequently, the GGM-GMA macromonomer, containing more than one methacrylate group, was used as a crosslinking agent in the synthesis of hydrogels through free-radical polymerization reactions in combination with a 2-acrylamido-2-methyl-1-propanesulfonic acid monomer to produce a cation exchange hydrogel. Also, (3-acrylamidopropyl)trimethylammonium chloride monomer was applied together with the GGM-GMA to form hydrogels that can be used as anion exchange hydrogel. The hydrogels were characterized by Fourier transform-infrared (FT-IR), 1H-NMR spectroscopy, and thermogravimetric analysis (TGA), as well as derivative thermogravimetry (DTG). The microstructure of the hydrogels was characterized by scanning electron microscopy (SEM) analysis with X-ray microanalysis energy-dispersive spectroscopy (EDS). The results obtained regarding the absorption capacity of the Cu(II), Cr(VI), and As(V) ions were studied as a function of the pH value and the initial concentration of the metal ions in the solutions. Absorption was carried out in consecutive batches, and it was found that the poly(GGM-GMA/AMPSH) hydrogel reached an absorption capacity of 90 mg g–1 for Cu(II). The poly(GGM-GMA/APTACl) hydrogel reached values of 69 and 60 mg g–1 for Cr(VI) and As(V) oxyanions, respectively. Tests with polymer blends (mixtures of anionic and cationic hydrogels) were also carried out to remove Cu(II), Cr(VI), and As(V) ions from multi-ionic solutions, obtaining satisfactory results.
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Affiliation(s)
- Julio Sánchez
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Daniel Dax
- Research Group of Wood and Paper Chemistry, Laboratory of Natural Materials Technology, Åbo Akademi University, Turku, Finland
| | - Yesid Tapiero
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Chunlin Xu
- Research Group of Wood and Paper Chemistry, Laboratory of Natural Materials Technology, Åbo Akademi University, Turku, Finland
| | - Stefan Willför
- Research Group of Wood and Paper Chemistry, Laboratory of Natural Materials Technology, Åbo Akademi University, Turku, Finland
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12
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Zhao Y, Sun H, Yang B, Fan B, Zhang H, Weng Y. Enhancement of Mechanical and Barrier Property of Hemicellulose Film via Crosslinking with Sodium Trimetaphosphate. Polymers (Basel) 2021; 13:927. [PMID: 33802938 PMCID: PMC8002615 DOI: 10.3390/polym13060927] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/15/2021] [Accepted: 03/15/2021] [Indexed: 11/17/2022] Open
Abstract
Hemicellulose is a kind of biopolymer with abundant resources and excellent biodegradability. Owing to its large number of polar hydroxyls, hemicellulose has a good barrier performance to nonpolar oxygen, making this biopolymer promising as food packaging material. Hydrophilic hydroxyls also make the polymer prone to water absorption, resulting in less satisfied strength especially under humid conditions. Thus, preparation of hemicellulose film with enhanced oxygen and water vapor barrier ability, as well as mechanical strength is still sought after. Herein, sodium trimetaphosphate (STMP) was used as esterification agent to form a crosslinked structure with hemicellulose through esterification reaction to render improved barrier performance by reducing the distance between molecular chains. The thus modified hemicellulose film achieved an oxygen permeability and water vapor permeability of 3.72 cm3 × μm × m-2 × d-1 × kPa-1 and 2.85 × 10-10 × g × m-1 × s-1 × Pa-1, respectively, at the lowest esterification agent addition of 10%. The crosslinked structure also brought good mechanical and thermal properties, with the tensile strength reaching 30 MPa, which is 118% higher than that of the hemicellulose film. Preliminary test of its application in apple preservation showed that the barrier film obtained can effectively slow down the oxidation and dehydration of apples, showing the prospect of application in the field of food packaging.
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Affiliation(s)
- Yuelong Zhao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (B.F.); (H.Z.)
| | - Hui Sun
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (B.F.); (H.Z.)
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
| | - Biao Yang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (B.F.); (H.Z.)
| | - Baomin Fan
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (B.F.); (H.Z.)
| | - Huijuan Zhang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (B.F.); (H.Z.)
| | - Yunxuan Weng
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (B.F.); (H.Z.)
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
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13
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Shao H, Zhao Y, Sun H, Yang B, Fan B, Zhang H, Weng Y. Barrier Film of Etherified Hemicellulose from Single-Step Synthesis. Polymers (Basel) 2020; 12:E2199. [PMID: 32992935 PMCID: PMC7599748 DOI: 10.3390/polym12102199] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 11/17/2022] Open
Abstract
Hemicellulose with good biodegradability and low oxygen permeability shows great potential in food packaging. However, its strong hydrophilicity leads to its poor moisture resistance, which hinders its wider application. In this paper, a near-hydrophobic hemicellulose was obtained by using single-step synthesis from poplar powder via etherification modification with epoxy chloropropane. This proposed approach has the advantage of avoiding the destruction of hemicellulose structure by secondary alkali-hydrolysis, which was what usually occurred in traditional etherification procedures. The feasibility of using epoxy chloropropane as an alkylation reagent to etherify hemicellulose was confirmed, and the reaction mechanism was elucidated. Contact angle test, thermogravimetric analysis, oxygen transmittance test, and infrared spectrum analysis showed that the barrier property and thermal stability of etherified hemicellulose films have been significantly improved. At an epoxy chloropropane/wood powder ratio (volume/weight) of 2/3 (mL/g), the epoxy hemicellulose films contained the most epoxy groups and displayed the best performance, i.e., tensile strength of 14.6 MPa, surface contact angle of 71.7° and oxygen transmission coefficient of 1.9 (cm3·µm)/(m2·d·kPa), showing great promise as barrier film in food-packaging.
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Affiliation(s)
- Hui Shao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
| | - Yuelong Zhao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
| | - Hui Sun
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
| | - Biao Yang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
| | - Baomin Fan
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
| | - Huijuan Zhang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
| | - Yunxuan Weng
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
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Zhao Y, Sun H, Yang B, Weng Y. Hemicellulose-Based Film: Potential Green Films for Food Packaging. Polymers (Basel) 2020; 12:E1775. [PMID: 32784786 PMCID: PMC7465936 DOI: 10.3390/polym12081775] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 11/17/2022] Open
Abstract
Globally increasing environmental awareness and the possibility of increasing price and dwindling supply of traditional petroleum-based plastics have led to a breadth of research currently addressing environmentally friendly bioplastics as an alternative solution. In this context, hemicellulose, as the second richest polysaccharide, has attracted extensive attention due to its combination of such advantages as abundance, biodegradability, and renewability. Herein, in this review, the latest research progress in development of hemicellulose film with regard to application in the field of food packaging is presented with particular emphasis on various physical and chemical modification approaches aimed at performance improvement, primarily for enhancement of mechanical, barrier properties, and hydrophobicity that are essential to food packing materials. The development highlights of hemicellulose film substrate are outlined and research prospects in the field are described.
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Affiliation(s)
- Yuelong Zhao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (Y.W.)
| | - Hui Sun
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (Y.W.)
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
| | - Biao Yang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (Y.W.)
| | - Yunxuan Weng
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (Y.W.)
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
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