1
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Dai M, Cheng A, Lim LT, Xiao Q. Properties and application of antioxidant and antibacterial composite films based on methylcellulose and spine grape pomace fabricated by thermos-compression molding. Food Chem 2024; 453:139683. [PMID: 38788649 DOI: 10.1016/j.foodchem.2024.139683] [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: 02/07/2024] [Revised: 04/15/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024]
Abstract
Methylcellulose (MC)/grape pomace (GP) films, plasticized with either glycerol (GLY) or cinnamon essential oil (CEO), were prepared by thermo-compression molding and characterized. Compared to the GLY-plasticized MC50/GP50 films, a considerable increase in TS and YM values of CEO-plasticized films was observed, rising from 9.66 to 30.05 MPa, 762 to 1631 MPa, respectively. Moreover, the water vapor barrier, surface hydrophobic properties, and antioxidant/antibacterial activities of CEO-plasticized films remarkedly improved with increasing CEO content from 5 to 15% w/w. From scanning electron microscopy, phase separation between GP and the MC/GLY mixture were evident for GLY-plasticized MC/GP films. On the other hand, the CEO-plasticized films showed compact morphologies, attributable to the formation of hydrogen bonding and π-π stacking interaction. Preliminary shelf-life study on showed that fresh chicken wrapped with the CEO-plasticized MC/GP films exhibited lower TVB-N, TBARS, and TVC values than the unwrapped control samples, during 7 d storage at 4 °C.
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Affiliation(s)
- Miaoqi Dai
- School of Food Science and Technology, Hunan Agricultural University, 410128, Hunan, China
| | - Anwei Cheng
- School of Food Science and Technology, Hunan Agricultural University, 410128, Hunan, China
| | - Loong-Tak Lim
- Department of Food Science, University of Guelph, N1G 2W1, Ontario, Canada
| | - Qian Xiao
- School of Food Science and Technology, Hunan Agricultural University, 410128, Hunan, China.
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2
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Jie X, Lin C, Qian C, He G, Feng Y, Yin X. Preparation and properties of thermoplastic starch under the synergism of ultrasonic and elongational rheology. Int J Biol Macromol 2024; 274:133155. [PMID: 38880450 DOI: 10.1016/j.ijbiomac.2024.133155] [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: 01/29/2024] [Revised: 05/25/2024] [Accepted: 06/12/2024] [Indexed: 06/18/2024]
Abstract
Thermoplastic starch, as an eco-friendly alternative to petroleum-based plastics, possesses numerous advantages, including cost-effectiveness, complete biodegradability, and renewable sourcing. Nevertheless, the plasticizer dispersion and starch plasticization efficiency are poor via the processing method dominate by shear deformation. Thus, the aim of this study is proposing a new approach combining ultrasonic treatment and elongational rheology to prepare thermoplastic starch and evaluate its properties. This innovative approach facilitated the production of thermoplastic starch with glycerol as the plasticizer at varying rotor speeds. Furthermore, this study was carried out by using a self-developed ultrasonic-assisted vane mixer (UVM) based on elongational flow. The samples were analyzed using FTIR, WAXD, polarized optical microscope, dynamic rheometer, universal testing machine and thermogravimetric analysis. FTIR and dynamic rheological analysis showed that elongational rheology and ultrasonics stimulate hydrogen bond formation between starch and glycerol, elevating starch thermoplasticity. Tensile tests and thermogravimetric analysis highlighted that high-intensity elongational field improved the mechanical properties and thermal stability of the thermoplastic starch. Additionally, the incorporation of ultrasonic treatment yielded further improvements, yielding remarkable tensile strength (6.09 MPa) and elongation at break (139.3 %). This synergistic interplay between ultrasonics and elongational rheology holds immense potential for advancing thermoplastic starch manufacturing.
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Affiliation(s)
- Xi Jie
- Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, GuangZhou, 510640, China
| | - Cheng Lin
- Dongguan Zhengxin Packaging Products Co., Ltd.,China
| | - Cheng Qian
- Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, GuangZhou, 510640, China
| | - Guangjian He
- Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, GuangZhou, 510640, China
| | - Yanhong Feng
- Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, GuangZhou, 510640, China
| | - Xiaochun Yin
- Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, GuangZhou, 510640, China.
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3
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Yao F, Wu Z, Gu Y, Di Y, Liu Y, Srinivasan V, Lian C, Li Y. Acetylated nanocellulose reinforced hydroxypropyl starch acetate realizing polypropylene replacement for green packaging application. Carbohydr Polym 2024; 331:121886. [PMID: 38388040 DOI: 10.1016/j.carbpol.2024.121886] [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: 12/06/2023] [Revised: 01/12/2024] [Accepted: 01/27/2024] [Indexed: 02/24/2024]
Abstract
The use of natural starch as a replacement for petroleum-based packaging materials is limited due to its poor processability, weak mechanical properties, and strong moisture sensitivity. To address these limitations, this study adopts molecular design of hydroxypropylation and acetylation to sequentially modify natural starch, and material design of introducing acetylated cellulose nanofibers (ACNF) into the starch matrix to reinforce the material. Hydroxypropylation decreased the interaction force between the starch molecular chains, thereby reducing the glass transition temperature. Subsequent acetylation introduced hydrophobic acetyl groups that disrupted intermolecular hydrogen bonds, enhancing the mobility of the starch molecular chain, and endowed the hydroxypropyl starch acetate (HPSA) with excellent thermoplastic processability (melt index of 7.12 g/10 min) without the need for plasticizers and notable water resistance (water absorption rate of 3.0 %). The introduction of ACNF generated a strong interaction between HPSA chains, promoting the derived ACNF-HPSA to exhibit excellent mechanical strength, such as high impact strength of 2.1 kJ/m2, tensile strength of 22.89 MPa, elasticity modulus of 813.22 MPa, flexural strength of 24.18 MPa and flexural modulus of 1367.88 MPa. Its overall performance even surpassed that of polypropylene (PP) plastic, making it a potential alternative material for PP-based packaging materials.
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Affiliation(s)
- Fengbiao Yao
- Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai'an 271018, China
| | - Zhiqiang Wu
- Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, College of Chemistry and Material Science, Shandong Agricultural University, Tai'an 271018,China
| | - Yongsheng Gu
- Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai'an 271018, China
| | - Yong Di
- Taian Cellulose Ether Technology Co. Ltd., Tai'an 271000, China
| | - Yiliang Liu
- Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai'an 271018, China
| | - Vennila Srinivasan
- Department of Polymer Science, University of Madras, Guindy Campus, Chennai 600025, India
| | - Chenglong Lian
- Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai'an 271018, China; Shandong Xingang Enterprise Group Co., Ltd., Linyi 276013, China.
| | - Yongfeng Li
- Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai'an 271018, China; Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, College of Chemistry and Material Science, Shandong Agricultural University, Tai'an 271018,China.
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4
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Ouyang H, Jin D, He Y, Tang K, Guo X, Lin Y, Cheng F, Zhu P, Wu D, Zhang K. Effect of branched 1,4-butanediol citrate oligomers with different molecular weights on toughness and aging resistance of glycerol plasticized starch. Int J Biol Macromol 2024; 268:131603. [PMID: 38626835 DOI: 10.1016/j.ijbiomac.2024.131603] [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: 01/07/2024] [Revised: 03/25/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024]
Abstract
The thermoplastic starch with glycerol is easy to retrograde and sensitive to hygroscopicity. In this study, branched 1,4-butanediol citrate oligomers with different molecular weights (P1, P2, and P3) are synthesized, and then mixed with glycerol (G) as the co-plasticizers to prepare thermoplastic starch (CS/PG). The results show that the molecular weight and branching degree of the branched 1,4-butanediol citrate oligomers increase as reaction time prolongs. Compared with glycerol plasticized starch, the thermoplastic starch films with branched 1,4-butanediol citrate oligomers/glycerol (10 wt%/20 wt%) have a better toughness, transmittance, and aging resistance, and have a lower crystallinity, hygroscopicity, and thermal stability. The toughness, transmittance, and aging resistance of CS/PG films are positively correlated with the molecular weight of the branched 1,4-butanediol citrate oligomers. These are due to the fact that the branched 1,4-butanediol citrate oligomer with a high molecular weight could form a stronger hydrogen bond and the more stable cross-linked structure with starch chains than that with a lower molecular weight. The elongation at break of CS/P3G film stored for 3 and 30 d are 98.0 % and 88.1 %, respectively. The mixture of branched butanediol citrate oligomers and glycerol, especially P3/G, has a potential application in the preparation of thermoplastic starch.
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Affiliation(s)
- Haishun Ouyang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Dongliang Jin
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Yixuan He
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Kewen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Xiaoming Guo
- School of Materials Science & Engineering, Hubei University of Automotive Technology, Shiyan 442002, China.
| | - Yi Lin
- Textile Research Institute, Sichuan University, Chengdu 610065, China
| | - Fei Cheng
- Textile Research Institute, Sichuan University, Chengdu 610065, China
| | - Puxin Zhu
- Textile Research Institute, Sichuan University, Chengdu 610065, China
| | - Dacheng Wu
- Textile Research Institute, Sichuan University, Chengdu 610065, China
| | - Kang Zhang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
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5
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Zdanowicz M, Rokosa M, Pieczykolan M, Antosik AK, Skórczewska K. Biocomposites Based on Wheat Flour with Urea-Based Eutectic Plasticizer and Spent Coffee Grounds: Preparation, Physicochemical Characterization, and Study of Their Influence on Plant Growth. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1212. [PMID: 38473683 DOI: 10.3390/ma17051212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/03/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024]
Abstract
In this study, we conducted the first plasticization of wheat flour (WF) with the addition of choline chloride:urea (1:5 molar ratio) eutectic mixture as a plasticizer and spent coffee grounds (cf) as a filler. Thermoplastic wheat flour (TPWF) films were obtained via twin-screw extrusion and then thermocompression. Their physicochemical characterization included mechanical tests, dynamic mechanical thermal analysis (DMTA), and sorption tests. XRD analysis revealed that the eutectic plasticizer led to a high degree of WF amorphization, which affected the physicochemical properties of TPWF. The results indicated that it was easy for the TPWF biocomposites to undergo thermocompression even with a high amount of the filler (20 pph per flour). The addition of the cf into TPWF led to an increase in tensile strength and a decrease in the swelling degree of the biocomposites. Biodegradation tests in soil revealed that the materials wholly degraded within 11 weeks. Moreover, a study of cultivated plants indicated that the biocomposites did not exhibit a toxic influence on the model rowing plant.
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Affiliation(s)
- Magdalena Zdanowicz
- Center of Bioimmobilisation and Innovative Packaging Materials, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology, Szczecin, Janickiego St. 35, 71-270 Szczecin, Poland
| | - Marta Rokosa
- Laboratory of Plant Physiology and Entomology, Department of Bioengineering, Faculty of Environmental Management and Agriculture, West Pomeranian University of Technology, Szczecin, Słowackiego St. 17, 70-953 Szczecin, Poland
| | - Magdalena Pieczykolan
- Center of Bioimmobilisation and Innovative Packaging Materials, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology, Szczecin, Janickiego St. 35, 71-270 Szczecin, Poland
| | - Adrian Krzysztof Antosik
- Center of Bioimmobilisation and Innovative Packaging Materials, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology, Szczecin, Janickiego St. 35, 71-270 Szczecin, Poland
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastow Ave. 42, 71-065 Szczecin, Poland
| | - Katarzyna Skórczewska
- Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, Seminaryjna 3, 85-326 Bydgoszcz, Poland
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6
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Schutz GF, de Ávila Gonçalves S, Alves RMV, Vieira RP. A review of starch-based biocomposites reinforced with plant fibers. Int J Biol Macromol 2024; 261:129916. [PMID: 38311134 DOI: 10.1016/j.ijbiomac.2024.129916] [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: 11/06/2023] [Revised: 01/09/2024] [Accepted: 01/31/2024] [Indexed: 02/06/2024]
Abstract
Renewable and biodegradable resources have gained increasing attention as promising alternatives to synthetic plastics. Among the diverse raw materials employed in bioplastics production, starch emerges as an attractive, low-cost, and largely available source. However, the inherent properties of starch-based materials often limit their utility across various applications, necessitating strategic modifications to enhance their performance. A common approach to boost these materials involves incorporating natural fillers into biopolymer matrices. Incorporating natural fibers within starch matrices enables the development of biocomposites with improved properties while retaining their renewable and biodegradable characteristics. This review briefly addresses fundamental aspects of starch structure, obtention, and processing, as well as the main pre-treatments of natural fibers and processing methods currently applied to produce starch-based composites. It also highlights the most recent advances in this field, elucidates the effect of the incorporation of fibers on the biocomposite properties, and discusses the critical parameters affecting the synergic combination between starch and fibers.
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Affiliation(s)
- Guilherme Frey Schutz
- Universidade Estadual de Campinas (UNICAMP), Faculdade de Engenharia Química (FEQ), Campinas, São Paulo, Brazil.
| | - Sayeny de Ávila Gonçalves
- Universidade Estadual de Campinas (UNICAMP), Faculdade de Engenharia Química (FEQ), Campinas, São Paulo, Brazil
| | - Rosa Maria Vercelino Alves
- Instituto de Tecnologia de Alimentos (ITAL), Centro de Tecnologia de Embalagem (CETEA), Campinas, São Paulo, Brazil
| | - Roniérik Pioli Vieira
- Universidade Estadual de Campinas (UNICAMP), Faculdade de Engenharia Química (FEQ), Campinas, São Paulo, Brazil.
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7
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He X, Zhang F, Li C, Ding W, Jin Y, Tang L, Huang R. Effect of Starch Plasticization on Morphological, Mechanical, Crystalline, Thermal, and Optical Behavior of Poly(butylene adipate-co-terephthalate)/Thermoplastic Starch Composite Films. Polymers (Basel) 2024; 16:326. [PMID: 38337215 DOI: 10.3390/polym16030326] [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: 12/19/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 02/12/2024] Open
Abstract
Starches plasticized with glycerol/citric acid/stearic acid and tributyl 2-acetylcitrate (ATBC), respectively, were processed with poly (butylene adipate-Co-terephthalate (PBAT) via extrusion and a film-blown process. All the composite films were determined for morphology, mechanical, thermal stability, crystalline, and optical properties. Results show that the most improved morphology was in the 30% glycerol plasticized PBAT/thermoplastic starch (TPS) composite films, characterized by the smallest and narrowest distribution of TPS particle sizes and a more uniform dispersion of TPS particles. However, the water absorption of PBAT/TPS composite films plasticized with glycerol surpassed that observed with ATBC as a plasticizer. Mechanical properties indicated insufficient plasticization of the starch crystal structure when using 10% ATBC, 20% ATBC, and 20% glycerol as plasticizers, leading to poor compatibility between PBAT and TPS. This resulted in stress concentration points under external forces, adversely affecting the mechanical properties of the composites. All PBAT/TPS composite films exhibited a negative impact on the initial thermal decomposition temperature compared to PBAT. Additionally, the haze value of PBAT/TPS composite films exceeded 96%, while pure PBAT had a haze value of 47.42%. Films plasticized with 10% ATBC, 20% ATBC, and 20% glycerol displayed lower transmittance values in the visible light region. The increased transmittance of films plasticized with 30% glycerol further demonstrated their superior plasticizing effect compared to other PBAT/TPS composite films. This study provides a simple and feasible method for preparing low-cost PBAT composites, and their extensions are expected to further replace general-purpose plastics in daily applications.
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Affiliation(s)
- Xiaoyan He
- Department of Material Science and Engineering, Taizhou Institute of Zhejiang University, Taizhou 318000, China
| | - Fuhong Zhang
- Sanmen Megatron Tech. Co., Ltd., Taizhou 318000, China
| | - Congcong Li
- Center for Biotechnology and Biomedical Engineering, Yiwu Research Institute of Fudan University, Yiwu 322000, China
| | - Weiwei Ding
- Sanmen Megatron Tech. Co., Ltd., Taizhou 318000, China
| | - Yuanyuan Jin
- Department of Material Science and Engineering, Taizhou Institute of Zhejiang University, Taizhou 318000, China
| | - Lisheng Tang
- Department of Material Science and Engineering, Taizhou Institute of Zhejiang University, Taizhou 318000, China
| | - Ran Huang
- Department of Material Science and Engineering, Taizhou Institute of Zhejiang University, Taizhou 318000, China
- Academy for Engineering and Applied Technology, Fudan University, Shanghai 200433, China
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8
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Xu X, Wang B, Gao W, Sui J, Wang J, Cui B. Effect of different proportions of glycerol and D-mannitol as plasticizer on the properties of extruded corn starch. Front Nutr 2024; 10:1335812. [PMID: 38299182 PMCID: PMC10829104 DOI: 10.3389/fnut.2023.1335812] [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: 11/09/2023] [Accepted: 12/28/2023] [Indexed: 02/02/2024] Open
Abstract
In this study, thermoplastic starch (TPS) was prepared by melt extrusion process, in which glycerol and/or D-mannitol were used as plasticizers, and the effect of different glycerol/D-mannitol ratios (4:0, 3:1, 2:2, 1:3, and 0:4) on the physicochemical properties of the extruded starch samples was investigated. The short-range molecular order, crystallization, gelatinization, thermal stability, and thermal properties of the TPS samples were analyzed through attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy, X-ray diffraction (XRD), rapid visco analysis (RVA), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The results showed that the crystallinity and short-range molecular order of the TPS samples increased with increasing glycerol content. Conversely, the water absorption index (WAI) and water solubility index (WSI) of the TPS samples decreased with increasing glycerol content. In addition, the TPS samples with higher glycerol content exhibited higher gel and thermal stabilities. This study provides a theoretical basis for starch extrusion and plasticization in the preparation of TPS-based materials with specific properties.
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Affiliation(s)
- Xin Xu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
- School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
| | - Bin Wang
- Department of Food Science and Engineering, Shandong Agricultural University, Taian, China
| | - Wei Gao
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
- School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
| | - Jie Sui
- Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
| | - Jianfei Wang
- Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
| | - Bo Cui
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
- School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
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9
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Eslami Z, Elkoun S, Robert M, Adjallé K. A Review of the Effect of Plasticizers on the Physical and Mechanical Properties of Alginate-Based Films. Molecules 2023; 28:6637. [PMID: 37764413 PMCID: PMC10534897 DOI: 10.3390/molecules28186637] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/12/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
In recent years, there has been a growing attempt to manipulate various properties of biodegradable materials to use them as alternatives to their synthetic plastic counterparts. Alginate is a polysaccharide extracted from seaweed or soil bacteria that is considered one of the most promising materials for numerous applications. However, alginate potential for various applications is relatively limited due to brittleness, poor mechanical properties, scaling-up difficulties, and high water vapor permeability (WVP). Choosing an appropriate plasticizer can alleviate the situation by providing higher flexibility, workability, processability, and in some cases, higher hydrophobicity. This review paper discusses the main results and developments regarding the effects of various plasticizers on the properties of alginate-based films during the last decades. The plasticizers used for plasticizing alginate were classified into different categories, and their behavior under different concentrations and conditions was studied. Moreover, the drawback effects of plasticizers on the mechanical properties and WVP of the films are discussed. Finally, the role of plasticizers in the improved processing of alginate and the lack of knowledge on some aspects of plasticized alginate films is clarified, and accordingly, some recommendations for more classical studies of the plasticized alginate films in the future are offered.
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Affiliation(s)
- Zahra Eslami
- Center for Innovation in Technological Ecodesign (CITE), University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada; (Z.E.); (M.R.)
- Research Center for High Performance Polymer and Composite Systems (CREPEC), Montreal, QC H3A 0C3, Canada
| | - Saïd Elkoun
- Center for Innovation in Technological Ecodesign (CITE), University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada; (Z.E.); (M.R.)
- Research Center for High Performance Polymer and Composite Systems (CREPEC), Montreal, QC H3A 0C3, Canada
| | - Mathieu Robert
- Center for Innovation in Technological Ecodesign (CITE), University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada; (Z.E.); (M.R.)
- Research Center for High Performance Polymer and Composite Systems (CREPEC), Montreal, QC H3A 0C3, Canada
| | - Kokou Adjallé
- Environmental Biotechnology Laboratory, Eau Terre Environnement Research Centre, Institut National de la Recherche Scientifique (INRS), Quebec, QC G1K 9A9, Canada;
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10
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Zdanowicz M, Rokosa M, Pieczykolan M, Antosik AK, Chudecka J, Mikiciuk M. Study on Physicochemical Properties of Biocomposite Films with Spent Coffee Grounds as a Filler and Their Influence on Physiological State of Growing Plants. Int J Mol Sci 2023; 24:ijms24097864. [PMID: 37175572 PMCID: PMC10178467 DOI: 10.3390/ijms24097864] [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: 03/30/2023] [Revised: 04/20/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
The aim of the study was to plasticize corn starch with two selected urea (U)-rich plasticizers: choline chloride (CC):U or betaine (B):U eutectic mixtures at a molar ratio of 1:5 with a presence of spent coffee grounds as a filler. The biomaterials were prepared via a solventless one-step extrusion method and then extrudates were thermoformed using compression molding into sheets. The materials were characterized using mechanical and sorption tests, TGA, DMTA and FTIR. Additionally, a study on the biodegradation and remaining nitrogen content in soil was conducted. For the first time, an influence on physiological state of growing plants of the materials presence in soil was investigated. The addition of the coffee filler slightly increased the mechanical properties and decreased the swelling degree of the materials. The DMTA results indicated that biocomposites were easily thermoformable and the high filler addition (20 pph per polymer matrix) did not affect the processability. According to the biodegradation test results, the materials disappeared in soil within ca. 70 days. The results from this study on the physiological state of growing plants revealed that the materials, especially plasticized with CCU, did not exhibit any toxic effect on the yellow dwarf bean. The percentage of total nitrogen in the soil substrate in comparison with the control increased indicating an effective release of nitrogen from the TPS materials into the substrate.
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Affiliation(s)
- Magdalena Zdanowicz
- Center of Bioimmobilisation and Innovative Packaging Materials, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology in Szczecin, Janickiego St. 35, 71-270 Szczecin, Poland
| | - Marta Rokosa
- Laboratory of Plant Physiology and Entomology, Department of Bioengineering, Faculty of Environmental Management and Agriculture, West Pomeranian University of Technology in Szczecin, Słowackiego St. 17, 70-953 Szczecin, Poland
| | - Magdalena Pieczykolan
- Center of Bioimmobilisation and Innovative Packaging Materials, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology in Szczecin, Janickiego St. 35, 71-270 Szczecin, Poland
| | - Adrian Krzysztof Antosik
- Center of Bioimmobilisation and Innovative Packaging Materials, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology in Szczecin, Janickiego St. 35, 71-270 Szczecin, Poland
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastow Ave. 42, 71-065 Szczecin, Poland
| | - Justyna Chudecka
- Department of Environmental Management, Faculty of Environmental Management and Agriculture, West Pomeranian University of Technology in Szczecin, Słowackiego St. 17, 71-434 Szczecin, Poland
| | - Małgorzata Mikiciuk
- Laboratory of Plant Physiology and Entomology, Department of Bioengineering, Faculty of Environmental Management and Agriculture, West Pomeranian University of Technology in Szczecin, Słowackiego St. 17, 70-953 Szczecin, Poland
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11
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Niu Z, Chen F, Zhang H, Liu C. High Content of Thermoplastic Starch, Poly(butylenes adipate-co-terephthalate) and Poly(butylene succinate) Ternary Blends with a Good Balance in Strength and Toughness. Polymers (Basel) 2023; 15:polym15092040. [PMID: 37177187 PMCID: PMC10181405 DOI: 10.3390/polym15092040] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023] Open
Abstract
The ternary blends of a high content of thermoplastic starch (TPS), poly(butylenes adipate-co-terephthalate) (PBAT), and poly(butylene succinate) (PBS) were first melt-compounded in a twin screw extruder. The TPS contents in ternary blends were fixed at 60 wt%. The miscibility, morphology, thermal behavior, mechanical properties, and thermal resistance of the blends were investigated. The results showed that dispersions of PBS and PBAT minor phases improved the tensile strength and elongation at break. TPS/PBS/PBAT60/10/30 formed a good balance in strength and toughness. Dynamic mechanical analysis of the blends exhibits an intermediate and peak suggesting the ternary blend is compatible. Minor phase-separated structure SEM results showed that TPS/PBS/PBAT60/10/30 blend formed a typical mixture with core-shell morphology. As the PBAT composition was increased, phase morphology changes occurred in the blends, leading to decreased values of complex viscosity, storage modulus, and loss modulus. Moreover, the thermal resistances and melt flow properties of the materials were also studied by analysis of the heat deflection temperature (HDT) and melt flow index (MFI) value in the work.
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Affiliation(s)
- Zhaoyang Niu
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Fangping Chen
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - He Zhang
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Changsheng Liu
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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Fabrication of starch-based packaging materials. PHYSICAL SCIENCES REVIEWS 2023. [DOI: 10.1515/psr-2022-0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Abstract
This chapter aims to provide the reader with some information about the possibility of starch as a suitable substitute for synthetic polymers in biodegradable food packaging. This is due to the starch has good characteristics which are great biodegradability, low cost and also easy to gain from natural resources. However, some of technical challenges are also introduced before starch-based polymers can be used in more applications. These technical challenges involved preparation methods and incorporation of additives and these are being summarized in this topic. Hence, the enhancement of starch can be done in order to prepare innovative starch-based biodegradable materials.
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The Effect of Montmorillonites on the Physicochemical Properties of Potato Starch Films Plasticized with Deep Eutectic Solvent. Int J Mol Sci 2022; 23:ijms232416008. [PMID: 36555649 PMCID: PMC9786542 DOI: 10.3390/ijms232416008] [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: 11/20/2022] [Revised: 12/09/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
In the paper, the method of obtaining the potato starch nanocomposites plasticized with a deep eutectic solvent is described. The deep eutectic solvent based on choline chloride and malic acid (CM, molar ratio 1:1) was used as the plasticizer. The effect of the sodium and calcium montmorillonite (MMTNa, MMTCa respectively) addition on the properties of potato starch films was investigated. The thermal, mechanical, and barrier properties were determined. Moreover, a moisture absorption test was performed. The starch gelatinization temperature increased in the presence of montmorillonite. The values of glass transition determined by DMTA depended on the nanofiller type. For the systems containing MMTCa, they generally decreased with its content (although still lower than reference samples). The obtained nanocomposites showed improved mechanical and barrier properties. The highest values of tensile strength and Young's modulus were noted for the system containing 1% MMTNa. The XRD revealed that only the films with MMTNa exhibited intercalation. The homogeneity of the samples decreased with increasing nanofiller concentration. This was probably due to the occurrence of choline chloride-montmorillonite interactions, which were more favored than clay-starch interactions.
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14
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Natural deep eutectic solvent of choline chloride with oxalic or ascorbic acids as efficient starch-based film plasticizers. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Effective Aging Inhibition of the Thermoplastic Corn Starch Films through the Use of Green Hybrid Filler. Polymers (Basel) 2022; 14:polym14132567. [PMID: 35808613 PMCID: PMC9269058 DOI: 10.3390/polym14132567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 12/10/2022] Open
Abstract
Recently, hybrid fillers have been widely used to improve the properties of biopolymers. The synergistic effects of the hybrid fillers can have a positive impact on biopolymers, including thermoplastic corn starch film (TPCS). In this communication, we highlight the effectiveness of hybrid fillers in inhibiting the aging process of TPCS. The TPCS, thermoplastic corn starch composite films (TPCS-C), and hybrid thermoplastic corn starch composite film (TPCS-HC) were stored for 3 months to study the effect of hybrid filler on the starch retrogradation. TPCS-C and TPCS-HC were prepared by casting method with 5 wt% of fillers: nanocellulose (NC) and bentonite (BT). The alteration of the mechanical properties, aging behavior, and crystalline structure of the films were analyzed through the tensile test, Fourier transform infrared (FTIR), X-ray diffraction (XRD), differential scanning calorimetry (DSC), and water absorption analysis. The obtained data were correlated to each other to analyze the retrogradation of the TPCS, which is the main factor that contributes to the aging process of the biopolymer. Results signify that incorporating the hybrid filler (NC + BT) in the TPCS/4BT1NC films has effectively prevented retrogradation of the starch molecules after being stored for 3 months. On the contrary, the virgin TPCS film showed the highest degree of retrogradation resulting in a significant decrement in the film’s flexibility. These findings proved the capability of the green hybrid filler in inhibiting the aging of the TPCS.
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Beech D, Beech J, Gould J, Hill S. Effect of amylose/amylopectin ratio and extent of processing on the physical properties of expanded maize starches. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15581] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel Beech
- University of Nottingham Division of Food, Nutrition and Dietetics Sutton Bonington Leicestershire UK
| | - John Beech
- Real World Business Solutions Ltd Melton Mowbray Leicestershire UK
| | - Joanne Gould
- University of Nottingham Division of Food, Nutrition and Dietetics Sutton Bonington Leicestershire UK
| | - Sandra Hill
- Biopolymer Solutions Ltd Sutton Bonington Leicestershire UK
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Gandini A, M. Lacerda T. Monomers and Macromolecular Materials from Renewable Resources: State of the Art and Perspectives. Molecules 2021; 27:159. [PMID: 35011391 PMCID: PMC8746301 DOI: 10.3390/molecules27010159] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/08/2021] [Accepted: 12/17/2021] [Indexed: 12/13/2022] Open
Abstract
A progressively increasing concern about the environmental impacts of the whole polymer industry has boosted the design of less aggressive technologies that allow for the maximum use of carbon atoms, and reduced dependence on the fossil platform. Progresses related to the former approach are mostly based on the concept of the circular economy, which aims at a thorough use of raw materials, from production to disposal. The latter, however, has been considered a priority nowadays, as short-term biological processes can efficiently provide a myriad of chemicals for the polymer industry. Polymers from renewable resources are widely established in research and technology facilities from all over the world, and a broader consolidation of such materials is expected in a near future. Herein, an up-to-date overview of the most recent and relevant contributions dedicated to the production of monomers and polymers from biomass is presented. We provide some basic issues related to the preparation of polymers from renewable resources to discuss ongoing strategies that can be used to achieve original polymers and systems thereof.
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Affiliation(s)
- Alessandro Gandini
- Graduate School of Engineering in Paper, Print Media and Biomaterials (Grenoble INP-Pagora), University Grenoble Alpes, LGP2, CEDEX 9, 38402 Saint Martin d’Hères, France
| | - Talita M. Lacerda
- Biotechnology Department, Lorena School of Engineering, University of São Paulo, Lorena CEP 12602-810, SP, Brazil;
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Tiozon RJN, Bonto AP, Sreenivasulu N. Enhancing the functional properties of rice starch through biopolymer blending for industrial applications: A review. Int J Biol Macromol 2021; 192:100-117. [PMID: 34619270 DOI: 10.1016/j.ijbiomac.2021.09.194] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/26/2021] [Accepted: 09/28/2021] [Indexed: 02/07/2023]
Abstract
Rice starch has been used in various agri-food products due to its hypoallergenic properties. However, rice starch has poor solubility, lower resistant starch content with reduced retrogradation and poor functional properties. Hence, its industrial applications are rather limited. The lack of comprehensive information and a holistic understanding of the interaction between rice starch and endo/exogenous constituents to improve physico-chemical properties is a prerequisite in designing industrial products with enhanced functional attributes. In this comprehensive review, we highlight the potentials of physically mixing of biopolymers in upgrading the functional characteristics of rice starch as a raw material for industrial applications. Specifically, this review tackles rice starch modifications by adding natural/synthetic polymers and plasticizers, leading to functional blends or composites in developing sustainable packaging materials, pharma- and nutraceutical products. Moreover, a brief discussion on rice starch chemical and genetic modifications to alter starch quality for the deployment of rice starch industrial application is also highlighted.
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Affiliation(s)
- Rhowell Jr N Tiozon
- Consumer driven Grain Quality and Nutrition unit, Rice Breeding and Innovation Platform, International Rice Research Institute, Los Baños 4030, Philippines; Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany.
| | - Aldrin P Bonto
- Chemistry Department, De La Salle University, 2401 Taft, Avenue, Manila 0922, Philippines; Department of Chemistry, College of Science, University of Santo Tomas, España Blvd, Sampaloc, Manila, 1008, Metro Manila, Philippines.
| | - Nese Sreenivasulu
- Consumer driven Grain Quality and Nutrition unit, Rice Breeding and Innovation Platform, International Rice Research Institute, Los Baños 4030, Philippines.
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