1
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Maity J, Ray SK. Synthesis, characterization and column adsorption properties of gum ghatti and water hyacianth derived cellulose grafted poly(vinyl sulfonic acid-co-acrylamide) composites. Int J Biol Macromol 2024; 268:131652. [PMID: 38649075 DOI: 10.1016/j.ijbiomac.2024.131652] [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: 02/22/2024] [Revised: 04/07/2024] [Accepted: 04/14/2024] [Indexed: 04/25/2024]
Abstract
Vinylsulfonic acid (VSA), acrylamide (AM) and N, N methylene bis acrylamide(MBA) were copolymerized by radical polymerization in the presence of gum ghatti (GG) and treated water hyacianth (WH) in water. Several composite copolymers were prepared by varying the i) AM: VSA molar ratios ii) wt% of GG and iii) wt% of treated WH based on a Box-Behnken Design(BBD) of a response surface methodology (RSM) model with three input variables and the batch adsorption capacity (mg/g) of 100 mg/L Cd (II) from water as response. The composite polymer was characterized by Fourier transform Infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis(TGA), X- ray photo electron spectroscopy (XPS), compressive strength, pH reversibility, pH at point zero charge (pHPZC), Brunauer-Emmett-Teller (BET) surface area and scanning electron microscopy (SEM). The network parameters of the composites were determined. The copolymer composite prepared with AM: VSA of 5:1 containing 10 wt% GG and 4 wt% treated WH showed an optimum batch adsorption capacity of 399.15 mg/g Cd (II) from water containing 100 mg/L Cd (II). The same composite showed an adsorption capacity of 170.1 mg/g and a removal% of 31.5 at a feed concentration/feed flow rate/bed height of 150 mgL-1/30mLmin-1/30 mm in a fixed bed column.
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Affiliation(s)
- Jayabrata Maity
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, West Bengal, India
| | - Samit Kumar Ray
- Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, West Bengal, India.
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2
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Wu H, Shen W, Zhao Q, Zhang W. Synthesis of chitosan-based flocculant by dielectric barrier discharge modification and its flocculation performance in wastewater treatment. RSC Adv 2024; 14:2410-2421. [PMID: 38223699 PMCID: PMC10785050 DOI: 10.1039/d3ra06265a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 01/04/2024] [Indexed: 01/16/2024] Open
Abstract
As a typical type of organic flocculant, chitosan is limited by its poor water solubility and narrow pH range application. Grafting modification can improve chitosan's solubility and availability through linking macromolecular chains with other types of water-soluble groups or functional side groups. In this study, dielectric barrier discharge (DBD) was used to active the surface of chitosan, then activated chitosan was polymerized with acrylamide to synthesize a chitosan-based flocculant, chitosan-acrylamide (CS-AM). During the synthesis of CS-AM, the optimal conditions were determined as follows: discharge time of 5 min, discharge power of 60 W, total monomer mass concentration of 80 g L-1, polymerization time of 3 h, polymerization temperature of 70 °C, and m(CS) : m(AM) ratio of 1 : 3. The structure and morphological characteristics of CS-AM were investigated and analyzed by Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), thermogravimetric (TG) analysis, scanning electron microscopy (SEM), X-ray diffraction (XRD) and N2 physical adsorption, respectively. The removal efficiency of kaolin suspension and CNTs suspension can reach up to 95.9% and 90.2% after flocculation of CS-AM. Furthermore, the zeta potential of the supernatant from the CS-AM treated kaolin suspension at different pH values was examined, and the flocculation mechanism of CS-AM was analyzed. This study provides new ideas for the preparation and development of modified chitosan and broadens its application in water treatment.
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Affiliation(s)
- Haixia Wu
- College of Urban Construction, Nanjing Tech University Nanjing 211816 China
| | - Wang Shen
- College of Urban Construction, Nanjing Tech University Nanjing 211816 China
| | - Quanfa Zhao
- College of Urban Construction, Nanjing Tech University Nanjing 211816 China
| | - Weiwei Zhang
- College of Urban Construction, Nanjing Tech University Nanjing 211816 China
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3
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He C, Mou H, Hou W, Chen W, Ao T. Drought-resistant and water-retaining tobermorite/starch composite hydrogel for the remediation of cadmium-contaminated soil. Int J Biol Macromol 2024; 255:127534. [PMID: 37866565 DOI: 10.1016/j.ijbiomac.2023.127534] [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: 08/20/2023] [Revised: 10/13/2023] [Accepted: 10/16/2023] [Indexed: 10/24/2023]
Abstract
The objective of this work is utilizing fly ash to synthesize tobermorite (TOB) with a higher specific surface area and layered structure, and incorporating it into the starch/acrylic acid network to boost the drought resistance, water retention and heavy metal adsorption properties. The water absorption and water retention performance and cadmium adsorption characteristics of tobermorite/leftover rice-based composite hydrogel (TOB@LR-CH) were evaluated by water absorption swelling test, soil evaporation test and batch adsorption experiment. By adjusting the addition of TOB and other synthesized conditions, the swelling property (from 114.80 g/g to 322.64 g/g), water retention (71.80 %, 144 h) and Cd2+ adsorption characteristics (up to 591.36 mg/g) were significantly enhanced. Adding a moderate amount of TOB (2 wt%) provided the most uniform tobermorite dispersion during synthesis, and TOB2@LR-CH exhibited the most stable three-dimensional network and highest proportion of effective TOB. The adsorption behavior of cadmium on TOB2@LR-CH was more consistent with the pseudo-second-order kinetics and Langmuir isotherm models. Additionally, the regeneration test results displayed that the adsorption removal rate of cadmium by TOB2@LR-CH adsorbent remained stable after 5 cycles. This study demonstrates that TOB@LR-CH has good water absorption and water retention potential in arid and semi-arid soils, and also has potential application prospects in remediating Cd(II)-contaminated soil.
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Affiliation(s)
- Caiqing He
- College of Architecture and Environment, Sichuan University, Chengdu, 610065, China
| | - Haiyan Mou
- Institute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu 610065, China.
| | - Wenjing Hou
- College of Architecture and Environment, Sichuan University, Chengdu, 610065, China
| | - Wenqing Chen
- College of Architecture and Environment, Sichuan University, Chengdu, 610065, China
| | - Tianqi Ao
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China
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4
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Zhao Q, Wu H, Shen W, Han X, Zheng B, Wang Y. Dielectric barrier discharge plasma-modified chitosan flocculant and its flocculation performance. Int J Biol Macromol 2023; 251:126364. [PMID: 37595720 DOI: 10.1016/j.ijbiomac.2023.126364] [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: 05/11/2023] [Revised: 07/19/2023] [Accepted: 08/14/2023] [Indexed: 08/20/2023]
Abstract
The flocculation performance of chitosan can be enhanced by grafting modification to overcome its disadvantages of poor water solubility. In this study, chitosan was modified by dielectric barrier discharge plasma and polymerized with acrylamide and aluminum chloride to synthesize a new chitosan-based flocculant, namely, chitosan-acrylamide-aluminum chloride (CA-PAC). After optimizing the synthesis conditions of CA-PAC, the best conditions were as follows: discharge time of 3 min, discharge power of 50 W, polymerization temperature of 60 °C, polymerization time of 3 h, total monomer concentration of 100 g/L, and m(AlCl3):m(CA) ratio of 2:1. Characterization was performed through SEM, XPS, FTIR, XRD, TG and 1H NMR. Results showed that the preparation of CA-PAC was successful. The influences of flocculant dosage, pH, and stirring intensity on flocculation efficiency were investigated. The removal efficiency of turbidity was 94.1 %. The investigation of the flocculation mechanism revealed that CA-PAC mainly relied on charge neutralization or the synergic action of electric neutralization, bridging, and roll-sweep under acidic and neutral conditions, but it depended on the joint action of adsorption bridging and net sweeping under alkaline conditions. This study provides new ideas for the preparation and development of modified chitosan and broadens its application in water treatment.
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Affiliation(s)
- Quanfa Zhao
- College of Urban Construction, Nanjing Tech University, Nanjing 211816, China
| | - Haixia Wu
- College of Urban Construction, Nanjing Tech University, Nanjing 211816, China.
| | - Wang Shen
- College of Urban Construction, Nanjing Tech University, Nanjing 211816, China
| | - Xiao Han
- College of Urban Construction, Nanjing Tech University, Nanjing 211816, China
| | - Bin Zheng
- College of Urban Construction, Nanjing Tech University, Nanjing 211816, China
| | - Yong Wang
- Nanjing Branch of Central & Southern China Municipal Engineering Design and Research Institute Co., Ltd, Nanjing 210012, China
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Cui H, Feng Y, Yin Z, Qu K, Wang L, Li J, Jin T, Bai Y, Cui Z. Organic carbon release, denitrification performance and microbial community of solid-phase denitrification reactors using the blends of agricultural wastes and artificial polymers for the treatment of mariculture wastewater. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 255:114791. [PMID: 36934547 DOI: 10.1016/j.ecoenv.2023.114791] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 03/01/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
This paper explored the possibility of heterotrophic denitrification driven by composite solid carbon sources in low carbon/nitrogen ratio marine recirculating aquaculture wastewater. In this study, two agricultural wastes, reed straw (RS), corn cob (CC) and two artificial polymers, polycaprolactone (PCL), poly3-hydroxybutyrate-hydroxypropionate (PHBV) were mixed in a 1:1 ratio to compare the carbon release characteristics of the four composite carbon sources (RS+PCL, RS+PHBV, CC+PCL, and CC+PHBV) and their effects on improving the mariculture wastewater for denitrification. Dissolved organic carbon (DOC) after carbon source release (4.96-1.07 mg/g), total organic carbon/chemical oxygen demand (1.9-0.79) and short-chain fatty acids (SCFAs) (4.23-0.21 mg/g) showed that all the four composite solid carbon sources had excellent organic carbon release ability, and the CC+PCL group had the highest release of DOC and SCFAs. Energy-dispersive X-ray spectroscopy, scanning electron microscopy, and Fourier-transform infrared spectroscopy were used to observe the changes in the surface characteristics of the composite carbon source before and after application. And results showed that the stable internal structure enabled CC+PCL group to have continuous carbon release performance and achieved the maximum denitrification efficiency (93.32 %). The NRE results were supported by the abundance of the Proteobacteria microbial community at the phylum level and Marinobacter at the genus level. Quantitative real-time PCR (q-PCR) indicated CC-containing composite carbon source groups have good nitrate reduction ability, while PCL-containing composite carbon source groups have better nitrite reduction level. In conclusion, the carbon source for agricultural wastes and artificial polymers can be used as an economic and effective solid carbon source for denitrification and treatment of marine recirculating aquaculture wastewater.
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Affiliation(s)
- Hongwu Cui
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laoshan Laboratory, Qingdao 266237, China
| | - Yuna Feng
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; National Experimental Teaching Demonstration Center for Aquatic Science, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China
| | - Zhendong Yin
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Keming Qu
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laoshan Laboratory, Qingdao 266237, China
| | - Lu Wang
- Laoshan Laboratory, Qingdao 266237, China
| | - Jiaxin Li
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; School of Marine Science & Technology, Zhejiang Ocean University, Zhoushan 316022, China
| | - Tongtong Jin
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Ying Bai
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laoshan Laboratory, Qingdao 266237, China
| | - Zhengguo Cui
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laoshan Laboratory, Qingdao 266237, China.
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6
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Han N, Yao X, Wang Y, Huang W, Niu M, Zhu P, Mao Y. Recent Progress of Biomaterials-Based Epidermal Electronics for Healthcare Monitoring and Human-Machine Interaction. BIOSENSORS 2023; 13:393. [PMID: 36979605 PMCID: PMC10046871 DOI: 10.3390/bios13030393] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/08/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
Epidermal electronics offer an important platform for various on-skin applications including electrophysiological signals monitoring and human-machine interactions (HMI), due to their unique advantages of intrinsic softness and conformal interfaces with skin. The widely used nondegradable synthetic materials may produce massive electronic waste to the ecosystem and bring safety issues to human skin. However, biomaterials extracted from nature are promising to act as a substitute material for the construction of epidermal electronics, owing to their diverse characteristics of biocompatibility, biodegradability, sustainability, low cost and natural abundance. Therefore, the development of natural biomaterials holds great prospects for advancement of high-performance sustainable epidermal electronics. Here, we review the recent development on different types of biomaterials including proteins and polysaccharides for multifunctional epidermal electronics. Subsequently, the applications of biomaterials-based epidermal electronics in electrophysiological monitoring and HMI are discussed, respectively. Finally, the development situation and future prospects of biomaterials-based epidermal electronics are summarized. We expect that this review can provide some inspirations for the development of future, sustainable, biomaterials-based epidermal electronics.
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Oliveira RWG, de Oliveira JM, da Paz FB, Muniz EC, de Moura EM, Costa JCS, do Nascimento MO, Carvalho ALM, Pinheiro IM, Mendes AN, Filgueiras LA, de Souza PR, de Moura CVR. Films composed of white angico gum and chitosan containing chlorhexidine as an antimicrobial agent. Int J Biol Macromol 2023; 235:123905. [PMID: 36870650 DOI: 10.1016/j.ijbiomac.2023.123905] [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: 07/29/2022] [Revised: 02/12/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Abstract
Anadenanthera colubrina, popularly known as white angico, is a species extensively cultivated in Brazil, mainly in the cerrado region, including the state of Piauí. This study examines the development of films composed of white angico gum (WAG) and chitosan (CHI) and containing chlorhexidine (CHX), an antimicrobial agent. The solvent casting method was used to prepare films. Different combinations and concentrations of WAG and CHI were used to obtain films with good physicochemical characteristics. Properties such as the in vitro swelling ratio, the disintegration time, folding endurance, and the drug content were determined. The selected formulations were characterised by scanning electron microscopy, Fourier-transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, and X-ray diffraction, and the CHX release time and antimicrobial activity were evaluated. CHX showed a homogenous distribution in all CHI/WAG film formulations. The optimised films showed good physicochemical properties with 80% CHX release over 26 h, which is considered promising for local treatment of severe lesions in the mouth. Cytotoxicity tests of the films did not show toxicity. The antimicrobial and antifungal effects were very effective against the tested microorganisms.
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Affiliation(s)
| | | | | | - Edvani Curti Muniz
- Department of Chemistry, Federal University of Piauí, 64049-550, Brazil.
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Maleic acid as an important monomer in synthesis of stimuli-responsive poly(acrylic acid-co-acrylamide-co-maleic acid) superabsorbent polymer. Sci Rep 2023; 13:3511. [PMID: 36864105 PMCID: PMC9981600 DOI: 10.1038/s41598-023-30558-3] [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: 10/27/2022] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
Poly(acrylic acid-co-acrylamide-co-maleic acid) (p(AA-co-AM-co-MA)) superabsorbent polymer was synthesized from acrylic acid (AA), acrylamide (AM), and maleic acid (MA) via free radical copolymerization. Results showed the presence of maleic acid in structure of superabsorbent has the key and superior role in creating a smart superabsorbent. The structure, morphology, and strength of the superabsorbent were characterized using FT-IR, TGA, SEM, and rheology analysis. The effect of different factors was investigated to determine the ability of water absorbency of the superabsorbent. According to optimized conditions, the water absorbency capacity of the superabsorbent in distilled water (DW) was 1348 g/g and in a solution containing 1.0 wt.% NaCl (SCS) was 106 g/g. The water retention ability of the superabsorbent was also investigated. The kinetic swelling of superabsorbent was identified by Fickian diffusion and Schott's pseudo-second-order model. Furthermore, the reusability of superabsorbent was studied in distilled water and saline solution. The ability of superabsorbent was investigated in simulated urea and glucose solutions, and very good results were obtained. The response ability of the superabsorbent was confirmed by swelling and shrinking behavior against changes of temperature, pH, and ionic strength.
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Feng Y, Wang L, Yin Z, Cui Z, Qu K, Wang D, Wang Z, Zhu S, Cui H. Comparative investigation on heterotrophic denitrification driven by different biodegradable polymers for nitrate removal in mariculture wastewater: Organic carbon release, denitrification performance, and microbial community. Front Microbiol 2023; 14:1141362. [PMID: 36891393 PMCID: PMC9986267 DOI: 10.3389/fmicb.2023.1141362] [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: 01/10/2023] [Accepted: 01/31/2023] [Indexed: 02/22/2023] Open
Abstract
Heterotrophic denitrification is widely studied to purify freshwater wastewater, but its application to seawater wastewater is rarely reported. In this study, two types of agricultural wastes and two types of synthetic polymers were selected as solid carbon sources in denitrification process to explore their effects on the purification capacity of low-C/N marine recirculating aquaculture wastewater (NO3 --N 30 mg/L, salinity 32‰). The surface properties of reed straw (RS), corn cob (CC), polycaprolactone (PCL) and poly3-hydroxybutyrate-hydroxypropionate (PHBV) were evaluated by Brunauer-Emmett-Teller, Scanning electron microscope and Fourier-transform infrared spectroscopy. Short-chain fatty acids, dissolved organic carbon (DOC), and chemical oxygen demand (COD) equivalents were used to analyze the carbon release capacity. Results showed that agricultural waste had higher carbon release capacity than PCL and PHBV. The cumulative DOC and COD of agricultural waste were 0.56-12.65 and 1.15-18.75 mg/g, respectively, while those for synthetic polymers were 0.07-1.473 and 0.045-1.425 mg/g, respectively. The removal efficiency of nitrate nitrogen (NO3 --N) was CC 70.80%, PCL 53.64%, RS 42.51%, and PHBV 41.35%. Microbial community analysis showed that Proteobacteria and Firmicutes were the most abundant phyla in agricultural wastes and biodegradable natural or synthetic polymers. Quantitative real-time PCR indicated the conversion from nitrate to nitrogen was achieved in all four carbon source systems, and all six genes had the highest copy number in CC. The contents of medium nitrate reductase, nitrite reductase and nitrous oxide reductase genes in agricultural wastes were higher than those in synthetic polymers. In summary, CC is an ideal carbon source for denitrification technology to purify low C/N recirculating mariculture wastewater.
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Affiliation(s)
- Yuna Feng
- National Experimental Teaching Demonstration Center for Aquatic Science, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Lu Wang
- Marine Life Research Center, Laoshan Laboratory, Qingdao, China
| | - Zhendong Yin
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, China
| | - Zhengguo Cui
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Marine Life Research Center, Laoshan Laboratory, Qingdao, China
| | - Keming Qu
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Marine Life Research Center, Laoshan Laboratory, Qingdao, China
| | - Dawei Wang
- National Experimental Teaching Demonstration Center for Aquatic Science, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Zhanying Wang
- National Experimental Teaching Demonstration Center for Aquatic Science, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Shengmin Zhu
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, China
| | - Hongwu Cui
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Marine Life Research Center, Laoshan Laboratory, Qingdao, China
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10
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Study by DFT of the functionalization of amylose/amylopectin with glycerin monoacetate: Characterization by FTIR, electronic and adsorption properties. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133761] [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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11
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Chen L, Fan Z, Mao W, Dai C, Chen D, Zhang X. Analysis of Formation Mechanisms of Sugar-Derived Dense Carbons via Hydrogel Carbonization Method. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4090. [PMID: 36432375 PMCID: PMC9695707 DOI: 10.3390/nano12224090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/18/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Four kinds of sugar (glucose, fructose, sucrose, and maltose) were selected as carbon precursors, and corresponding dense carbon products were prepared using a novel hydrogel carbonization method. The carbonization processes of sugar-polyacrylamide (sugar-PAM) hydrogels were studied in detail. The molecular structures in the raw materials were analyzed by proton nuclear magnetic resonance spectroscopy (1H NMR). Samples prepared at different temperatures were characterized by thermogravimetry analysis (TGA) and Fourier-transform infrared (FTIR) spectroscopy. The morphology and microstructure of sugar-derived carbons were confirmed by field-emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). The results indicated that the sugar solution was surrounded by PAM with a three-dimensional network structure and formed hydrogels in the initial stage. The sugar solution was considered to be separated into nanocapsules. In each nanocapsule, sugar molecules could be limited within the hydrogel via walls formed by PAM chains. The hydroxyl group in the sugar molecules connected with PAM by the hydrogen bond and intermolecular force, which can strengthen the entire hydrogel system. The self-generated pressure of hydrogel constrains the foam of sugar during the heat treatment. Finally, dense carbon materials with low graphitization instead of porous structure were prepared at 1200 °C.
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Affiliation(s)
- Liting Chen
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
| | - Zheqiong Fan
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Weiguo Mao
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Cuiying Dai
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Daming Chen
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150000, China
| | - Xinghong Zhang
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150000, China
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12
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Marta H, Wijaya C, Sukri N, Cahyana Y, Mohammad M. A Comprehensive Study on Starch Nanoparticle Potential as a Reinforcing Material in Bioplastic. Polymers (Basel) 2022; 14:polym14224875. [PMID: 36433002 PMCID: PMC9693780 DOI: 10.3390/polym14224875] [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: 10/13/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 11/15/2022] Open
Abstract
Starch can be found in the stems, roots, fruits, and seeds of plants such as sweet potato, cassava, corn, potato, and many more. In addition to its original form, starch can be modified by reducing its size. Starch nanoparticles have a small size and large active surface area, making them suitable for use as fillers or as a reinforcing material in bioplastics. The aim of reinforcing material is to improve the characteristics of bioplastics. This literature study aims to provide in-depth information on the potential use of starch nanoparticles as a reinforcing material in bioplastic packaging. This study also reviews starch size reduction methods including acid hydrolysis, nanoprecipitation, milling, and others; characteristics of the nano-starch particle; and methods to produce bioplastic and its characteristics. The use of starch nanoparticles as a reinforcing material can increase tensile strength, reduce water vapor and oxygen permeability, and increase the biodegradability of bioplastics. However, the use of starch nanoparticles as a reinforcing material for bioplastic packaging still encounters obstacles in its commercialization efforts, due to high production costs and ineffectiveness.
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Affiliation(s)
- Herlina Marta
- Department of Food Technology, Faculty of Agro-Industrial Technology, Universitas Padjadjaran, Bandung 45363, Indonesia
- Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjadjaran, Bandung 45363, Indonesia
- Correspondence:
| | - Claudia Wijaya
- Department of Food Technology, Faculty of Agro-Industrial Technology, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Nandi Sukri
- Department of Food Technology, Faculty of Agro-Industrial Technology, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Yana Cahyana
- Department of Food Technology, Faculty of Agro-Industrial Technology, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Masita Mohammad
- Solar Energy Research Institute, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
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13
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Doustdar F, Ghorbani M. ZIF-8 enriched electrospun ethyl cellulose/polyvinylpyrrolidone scaffolds: The key role of polyvinylpyrrolidone molecular weight. Carbohydr Polym 2022; 291:119620. [DOI: 10.1016/j.carbpol.2022.119620] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 02/06/2023]
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14
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Li C, Wang H, Yan G, Dong W, Chu Z, Wang H, Chang Y, Ling Y, Zhang Y. Initial carbon release characteristics, mechanisms and denitrification performance of a novel slow release carbon source. J Environ Sci (China) 2022; 118:32-45. [PMID: 35305771 DOI: 10.1016/j.jes.2021.08.045] [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: 07/05/2021] [Revised: 08/23/2021] [Accepted: 08/23/2021] [Indexed: 06/14/2023]
Abstract
External carbon source addition is one of the effective methods for the treatment of wastewater with low carbon to nitrogen ratio (C/N). Compared with fast-release liquid carbon sources, slow-release solid carbon sources are more suitable for the denitrification process. A novel slow-release solid carbon source (corncob-polyvinyl alcohol sodium alginate- poly-caprolactone, i.e. CPSP) was prepared using corn cob (CC) and poly-caprolactone with polyvinyl alcohol sodium alginate as hybrid scaffold. The physical properties and carbon release characteristics of CPSP and three other carbon sources were compared. CPSP had stable framework and good carbon release performance, which followed the second order release equation. The formic acid, acetic acid, propionic acid and butyric acid released from CPSP accounted for 8.27% ± 1.66 %, 56.48% ± 3.71 %, 18.46% ± 2.69% and 16.79% ± 3.02% of the total released acids respectively. The start-up period of CPSP was shorter than that of the other carbon sources in denitrification experiment, and no COD pollution was observed in the start-up phase (25-72 h) and stable phase (73-240 hr). The composition and structure of the dissolved organic compounds released by CPSP and other carbon sources were analyzed by UV-Vis absorption spectroscopy and three-dimensional fluorescence spectroscopy, which indicated that CPSP was more suitable for denitrification than the other studied carbon sources.
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Affiliation(s)
- Congyu Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China
| | - Haiyan Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China.
| | - Guokai Yan
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China
| | - Weiyang Dong
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China
| | - Zhaosheng Chu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Huan Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China
| | - Yang Chang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China
| | - Yu Ling
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China
| | - Yanjie Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China
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15
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Al-Mughrabi W, Al-dossary AO, Abdel-Naby A. Free Radical Copolymerization of Diallylamine and Itaconic Acid for the Synthesis of Chitosan Base Superabsorbent. Polymers (Basel) 2022; 14:polym14091707. [PMID: 35566876 PMCID: PMC9100172 DOI: 10.3390/polym14091707] [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: 03/24/2022] [Revised: 04/15/2022] [Accepted: 04/20/2022] [Indexed: 11/25/2022] Open
Abstract
Copolymerization of diallylamine (DAA) and itaconic acid (IA) was synthesized using benzoyl peroxide as a free radical initiator, in dioxane as the solvent. The composition of the copolymer was determined by the nitrogen content using Edx. The solubility of the copolymer was also investigated. The water solubility of the synthesized copolymer depends on the comonomers’ ratio. The structure of the copolymer was confirmed by 13C-NMR spectroscopy. To increase the water insolubility of the copolymers, and keep their hydrophilicity, the copolymer was allowed to react with chitosan to form a superabsorbent polymeric material (SP). The structure of the synthesized superabsorbent was confirmed using 13C-NMR spectroscopy. The thermal property of the (SP) was also investigated by TGA. The investigation of the chitosan-based superabsorbent, as water-retaining agents, was studied. The results revealed that the superabsorbent polymers exhibited a good swelling ability and salt tolerance.
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Affiliation(s)
- Wafa Al-Mughrabi
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (W.A.-M.); (A.O.A.-d.)
- Water Treatment Unit, Basic & Applied Scientific Research Center (BASRC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Abeer O. Al-dossary
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (W.A.-M.); (A.O.A.-d.)
- Water Treatment Unit, Basic & Applied Scientific Research Center (BASRC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Abir Abdel-Naby
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (W.A.-M.); (A.O.A.-d.)
- Water Treatment Unit, Basic & Applied Scientific Research Center (BASRC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
- Correspondence:
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16
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Increasing agar content improves the sol-gel and mechanical features of starch/agar binary system. Carbohydr Polym 2022; 278:118906. [PMID: 34973727 DOI: 10.1016/j.carbpol.2021.118906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 10/26/2021] [Accepted: 11/12/2021] [Indexed: 11/23/2022]
Abstract
Starch/agar systems are highly potential for versatile applications such as packaging and biomedical materials. Here, how combined factors affect the features of a starch/agar binary system were explored. An increase of starch amylose/amylopectin ratio from 0/100 to 50/50 increased the sol-gel transition temperature and gel hardness of the aqueous starch/agar mixture. An increased agar content (mainly from 30% to 70%) allowed increases in both the tensile strength (reaching 50-60 MPa) and elongation at break of the starch/agar binary films. This phenomenon should be related to the strengthened crystalline structure and the weakened hydrogen bonding between starch chains (reflected by infrared spectroscopy). Furthermore, a higher relative humidity (from 30% to 70%) allowed enhanced chain interactions and probably nanoscale molecular order but weakened the crystalline structure, leading to reduced tensile strength and increased elongation at break. This work could facilitate the design of starch/agar binary systems with improved sol-gel and mechanical performance.
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17
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Hencz L, Chen H, Wu Z, Qian S, Chen S, Gu X, Liu X, Yan C, Zhang S. Highly branched amylopectin binder for sulfur cathodes with enhanced performance and longevity. EXPLORATION 2022; 2:20210131. [PMCID: PMC10190977 DOI: 10.1002/exp.20210131] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Affiliation(s)
- Luke Hencz
- Centre for Clean Environment and Energy, School of Environment and Science Griffith University, Gold Coast Campus Southport Queensland Australia
| | - Hao Chen
- Centre for Clean Environment and Energy, School of Environment and Science Griffith University, Gold Coast Campus Southport Queensland Australia
- School of Mechanical, Medical and Process Engineering Queensland University of Technology (QUT) Brisbane Queensland Australia
| | - Zhenzhen Wu
- Centre for Clean Environment and Energy, School of Environment and Science Griffith University, Gold Coast Campus Southport Queensland Australia
| | - Shangshu Qian
- Centre for Clean Environment and Energy, School of Environment and Science Griffith University, Gold Coast Campus Southport Queensland Australia
| | - Su Chen
- School of Mechanical, Medical and Process Engineering Queensland University of Technology (QUT) Brisbane Queensland Australia
| | - Xingxing Gu
- Centre for Clean Environment and Energy, School of Environment and Science Griffith University, Gold Coast Campus Southport Queensland Australia
- School of Environment and Resources Chongqing Technology and Business University Chongqing P. R. China
| | - Xianhu Liu
- Key Laboratory of Materials Processing and Mold, Zhengzhou University Ministry of Education Zhengzhou P. R. China
| | - Cheng Yan
- School of Mechanical, Medical and Process Engineering Queensland University of Technology (QUT) Brisbane Queensland Australia
| | - Shanqing Zhang
- Centre for Clean Environment and Energy, School of Environment and Science Griffith University, Gold Coast Campus Southport Queensland Australia
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18
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Designing and application of reactive extrusion with twice initiations for graft copolymerization of acrylamide on starch. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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19
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Ji X, Yin M, Hao L, Shi M, Liu H, Liu Y. Effect of inulin on pasting, thermal, rheological properties and in vitro digestibility of pea starch gel. Int J Biol Macromol 2021; 193:1669-1675. [PMID: 34742552 DOI: 10.1016/j.ijbiomac.2021.11.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 10/26/2021] [Accepted: 11/01/2021] [Indexed: 10/19/2022]
Abstract
The influence of inulin (IN) on pasting, thermal, rheological properties, and in vitro digestibility of pea starch gel was investigated. Results showed that as the concentration of IN in PS increased, the pasting temperature of PS gradually increased, while the value of peak viscosity, breakdown, and setback decreased. Rheological test suggested that all PS-IN gels were typical non-Newtonian fluids and exhibited a solid-like behavior. With the increased concentration of IN, hardness, chewiness, and gumminess of PS-IN gels significantly declined, in which the minimum value was at addition level of 20%. The presence of IN increased the gelatinization temperatures of PS-IN gels, while decreased the gelatinization enthalpy. Fourier-transform infrared spectroscopy (FT-IR) results indicated that no covalent bonding but intermolecular hydrogen bonding occurred between PS and IN. No influence of IN on the diffraction peak of PS after pasting was confirmed by X-ray diffraction analysis. In addition, IN decreased the content of rapidly and slowly digestible starch of PS, while increasing the content of resistant starch. These results will expand the application range of PS, and also provide a theoretical basis for the development of inulin-starch based products.
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Affiliation(s)
- Xiaolong Ji
- College of Food and Bioengineering, Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China
| | - Mingsong Yin
- College of Food and Bioengineering, Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China
| | - Lirui Hao
- College of Food and Bioengineering, Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China
| | - Miaomiao Shi
- College of Food and Bioengineering, Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China
| | - Hang Liu
- Shanxi Institute for Functional Food, Shanxi Agricultural University, Taiyuan 030031, PR China.
| | - Yanqi Liu
- College of Food and Bioengineering, Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China.
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20
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Liang Z, Chen X, Yang Z, Lu J, Huang J, Liu Y, Chen L, Xian H, Mo J, Huang X, Chen S, Yang J. Pyrraline formation prevented by sodium chloride encapsulated by binary blends of different starches and gum Arabic in aqueous model systems and cookies. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhili Liang
- School of Food Science Guangdong Food and Drug Vocational College Guangzhou 510520 China
| | - Xu Chen
- Engineering Research Center of Health Food Design & Nutrition Regulation School of Chemical Engineering and Energy Technology Dongguan University of Technology Dongguan 523808 China
| | - Zhao Yang
- School of Food Science Guangdong Food and Drug Vocational College Guangzhou 510520 China
| | - Jihuan Lu
- School of Food Science Guangdong Food and Drug Vocational College Guangzhou 510520 China
| | - Jiacheng Huang
- School of Food Science Guangdong Food and Drug Vocational College Guangzhou 510520 China
| | - Yingyi Liu
- School of Food Science Guangdong Food and Drug Vocational College Guangzhou 510520 China
| | - Lin Chen
- School of Food Science Guangdong Food and Drug Vocational College Guangzhou 510520 China
| | - Huiyi Xian
- School of Food Science Guangdong Food and Drug Vocational College Guangzhou 510520 China
| | - Jiajie Mo
- School of Food Science Guangdong Food and Drug Vocational College Guangzhou 510520 China
| | - Xiaosi Huang
- School of Food Science Guangdong Food and Drug Vocational College Guangzhou 510520 China
| | - Shaofu Chen
- School of Food Science Guangdong Food and Drug Vocational College Guangzhou 510520 China
| | - Jiabiao Yang
- School of Food Science Guangdong Food and Drug Vocational College Guangzhou 510520 China
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21
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Davey S, Soares JBP. Amylopectin graft copolymers for oil sands tailings treatment. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Stepheney Davey
- Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta Canada
| | - João B. P. Soares
- Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta Canada
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22
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Chen D, Chen P, Zheng X, Cheng W, Wang Q, Wei X. Enhanced Denitrification of Integrated Sewage Treatment System by Supplementing Denitrifying Carbon Source. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:9569. [PMID: 34574494 PMCID: PMC8470696 DOI: 10.3390/ijerph18189569] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/07/2021] [Accepted: 09/07/2021] [Indexed: 11/28/2022]
Abstract
Integrated sewage treatment system (ISTY) is a new technology for rural domestic sewage treatment. In the ISTY, the carbon source in the denitrification stage is often insufficient, affecting the denitrification efficiency. In order to improve the denitrification efficiency, several commonly available agricultural wastes, peanut shell (PS), sawdust (SD), peat (PT), and their mixtures (MT), were selected as supplementary carbon sources in the denitrification stage of ISTY to study the denitrification efficiency. Results show that PS exhibited a high carbon release capacity. PS released an enormous amount of carbon in 144 h, and the cumulative total organic carbon was 41.99 ± 0.7 mg/(g·L). The optimum carbon source dosage was 3 g/L, the nitrate removal rates of PS exceeded 95% after 48 h, and the denitrification rates were 9.35 mg/(g·L), which were 63.92% higher than that of the control group. After running the ISTY for 120 h, and with PS as supplementary carbon sources, the removal rate of TN increased from 29.76% to 83.86%. At the genus level, the dominant denitrifying bacteria in ISTY, after adding PS, were Pseudomonas and Cupriavidus, accounting for 78.68%, an increase of 72.90% compared with the control group. This evidence suggested that PS can obviously enhance the denitrification efficiency of the ISTY as a supplementary carbon source.
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Affiliation(s)
| | - Peizhen Chen
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (D.C.); (X.Z.); (W.C.); (Q.W.); (X.W.)
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23
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Tanan W, Panichpakdee J, Suwanakood P, Saengsuwan S. Biodegradable hydrogels of cassava starch-g-polyacrylic acid/natural rubber/polyvinyl alcohol as environmentally friendly and highly efficient coating material for slow-release urea fertilizers. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.06.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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24
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Synthesis of cassava starch-g-acrylic acid/dimethylaminopropyl methacrylamide: A new hydrogel for brine solution. Carbohydr Polym 2021; 266:118109. [PMID: 34044927 DOI: 10.1016/j.carbpol.2021.118109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 11/20/2022]
Abstract
A new hydrogel copolymer was synthesized via the graft copolymerization of acrylic acid (AA) and dimethylaminopropyl methacrylamide (DMAPMA) on cassava starch (CSt) in aqueous solution. FTIR, TGA-FTIR, solid-state 13C NMR, SEM analyses were used to characterize the polymer. The swelling behavior of the polymer was investigated in distilled water and in various brine solutions. The effects of CSt and the ratio of the two monomers on the water absorbency of the polymer was evaluated. CSt improved the polymer swelling properties. Both polyelectrolyte and anti-polyelectrolyte effects occurred and the polymer had good salt-resistance properties in brine solutions. Such polymers have potential applications in the absorption of ultra-high concentration brine solutions.
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25
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Preparation and characterization of a sustained-release bio-preservative based on β-cyclodextrin encapsulated eugenol. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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26
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Construction of Porous Starch-Based Hydrogel via Regulating the Ratio of Amylopectin/Amylose for Enhanced Water-Retention. Molecules 2021; 26:molecules26133999. [PMID: 34209127 PMCID: PMC8272078 DOI: 10.3390/molecules26133999] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/18/2021] [Accepted: 06/21/2021] [Indexed: 11/26/2022] Open
Abstract
The performance of hydrogels prepared with traditional natural starch as raw materials is considerable; the fixed ratio of amylose/amylopectin significantly limits the improvement of hydrogel structure and performance. In this paper, starch hydrogels were prepared by physical blending and chemical grafting, with the aid of ultrasonic heating. The effects of different amylose/amylopectin ratios on the microstructure and water retention properties of starch hydrogels were studied. The results show that an increase in amylopectin content is beneficial to improve the grafting ratio of acrylamide (AM). The interaction between the AM grafted on amylopectin and amylose molecules through hydrogen bonding increases the pores of the gel network and thins the pore walls. When the amylopectin content was 70%, the water absorption (swelling 45.25 times) and water retention performance (16 days water retention rate 44.17%) were optimal. This study provides new insights into the preparation of starch-based hydrogels with excellent physical and chemical properties.
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27
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Biodegradable phase change materials with high latent heat: Preparation and application on Lentinus edodes storage. Food Chem 2021; 364:130391. [PMID: 34182365 DOI: 10.1016/j.foodchem.2021.130391] [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: 03/04/2021] [Revised: 05/16/2021] [Accepted: 06/14/2021] [Indexed: 12/18/2022]
Abstract
In order to develop biodegradable phase change materials (PCMs) with high latent heat for cold chain logistics, superabsorbent resin (SAR) was prepared based on starch graft copolymerization. FTIR and DSC demonstrated that acrylic acid was successfully grafted onto starches and optimum latent heat of PCM was 330.4 J/g with 10% (w/w) starch. The water retention of PCM with 10% (w/w) starch was 0.49 after heating at 50 °C for 200 h, which was 4.9 folds higher than that of non-starch PCM. Biodegradation rate of PCM was 60.12% within 75-day burial, which was 6 folds higher than that of non-starch PCM. Moreover, significant reduction in browning index, odor, decay, relative conductivity and malondialdehyde (MDA) content was observed in Lentinus edodes treated by biodegradable PCM. These results indicated that the application of biodegradable PCM could extend the shelf life of fresh L. edodes stored at 25 °C.
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28
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Kalendova P, Svoboda L, Hroch J, Honcova P, Drobna H, Slang S. Hydrogels Based on Starch from Various Natural Sources: Synthesis and Characterization. STARCH-STARKE 2021. [DOI: 10.1002/star.202100051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Petra Kalendova
- Faculty of Chemical Technology University of Pardubice Department of Inorganic Technology Doubravice 41 Pardubice 53210 Czech Republic
| | - Ladislav Svoboda
- Faculty of Chemical Technology University of Pardubice Department of Inorganic Technology Doubravice 41 Pardubice 53210 Czech Republic
| | - Jan Hroch
- Faculty of Chemical Technology University of Pardubice Department of Inorganic Technology Doubravice 41 Pardubice 53210 Czech Republic
| | - Pavla Honcova
- Faculty of Chemical Technology University of Pardubice Department of Inorganic Technology Doubravice 41 Pardubice 53210 Czech Republic
| | - Helena Drobna
- Faculty of Chemical Technology University of Pardubice Department of Physical Chemistry Studentska 573 Pardubice 53210 Czech Republic
| | - Stanislav Slang
- Faculty of Chemical Technology University of Pardubice Center of Materials and Nanotechnologies Nam Cs. Legii 565 Pardubice 53002 Czech Republic
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29
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Yun L, Liu C, Li K, Deng L, Li J. Structure and properties of corn starch synthesized by using sulfobetaine and deoxycholic acid. Int J Biol Macromol 2021; 183:1293-1301. [PMID: 34004197 DOI: 10.1016/j.ijbiomac.2021.05.078] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/05/2021] [Accepted: 05/11/2021] [Indexed: 02/01/2023]
Abstract
Novel starch polymers (sulfobetaine-starch-deoxycholic acid) were first synthesized by grafting zwitterionic sulfobetaine and deoxycholic acid onto corn starch molecules. In order to explore the mechanism of modified starch, the chemical structure, morphological properties, thermal stability, and self-assembly performance of modified corn starch were determined. Preliminary structural characterization, using NMR, demonstrated that the glucose carbon C6 was the main etherification grafting site and C2 and C3 were the esterification grafting sites. This was confirmed using FT-IR to detect the presence of a new carbonyl signal around 1739 cm-1. XRD, SEM, and PLM micrographs showed structural losses in the starch granule. Thermogravimetric analysis showed an increase in thermal stability with etherification and esterification in nature. Self-assembly performance analysis demonstrated that the polymer formed more thermodynamically stable micelles under highly diluted conditions. This work will help expand the space for starch application.
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Affiliation(s)
- Linqi Yun
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Cancan Liu
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Kai Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, PR China; The Collaborative Innovation Center for Guangxi Sugar Industry, Nanning 530004, Guangxi, PR China
| | - Ligao Deng
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, PR China.
| | - Jianbin Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, PR China.
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30
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Momeni S, Rezvani Ghomi E, Shakiba M, Shafiei-Navid S, Abdouss M, Bigham A, Khosravi F, Ahmadi Z, Faraji M, Abdouss H, Ramakrishna S. The Effect of Poly (Ethylene glycol) Emulation on the Degradation of PLA/Starch Composites. Polymers (Basel) 2021; 13:1019. [PMID: 33806074 PMCID: PMC8036416 DOI: 10.3390/polym13071019] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 02/07/2023] Open
Abstract
As a hydrophilic renewable polymer, starch has been widely used in biocompatible plastics as a filler for more than two decades. The present study aimed at investigating the effects of polyethylene glycol (PEG), as a plasticizer, on the physicochemical properties of a hybrid composite-polylactic acid (PLA) and thermoplastic starch (TPS). A solvent evaporation process was adopted to gelatinize the starch and disparate PEG contents ranging from 3 to 15 wt.% (with respect to the sample weight) were examined. It was revealed that the increase in the PEG content was accompanied by an increment in the starch gelatinization degree. Referring to the microstructural analyses, the TPS/PLA mixture yielded a ductile hybrid composite with a fine morphology and a uniform phase. Nevertheless, two different solvents, including acetone and ethanol, were used to assess if they had any effect on the hybrid's morphology, tensile strength and thermal properties. It was found that ethanol culminated in a porous hybrid composite with a finer morphology and better starch distribution in the PLA structure than acetone. As the result of PEG addition to the composite, the crystallinity and tensile strength were decreased, whereas the elongation increased. The hydrolytic degradation of samples was assessed under different pH and thermal conditions. Moreover, the microbial degradation of the PLA/TPS hybrid composite containing different PEG molar fractions was investigated in the soil for 45 days. The rate of degradation in both hydrolytic and biodegradation increased in the samples with a higher amount of PEG with ethanol solvent.
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Affiliation(s)
- Sarieh Momeni
- Department of Chemistry, Amirkabir University of Technology, Tehran 15875-4413, Iran; (S.M.); (Z.A.)
| | - Erfan Rezvani Ghomi
- Center for Nanotechnology and Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 117581, Singapore;
| | - Mohamadreza Shakiba
- Department of Chemistry, Amirkabir University of Technology, Tehran 15875-4413, Iran; (S.M.); (Z.A.)
| | - Saied Shafiei-Navid
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar 47416-95447, Iran;
| | - Majid Abdouss
- Department of Chemistry, Amirkabir University of Technology, Tehran 15875-4413, Iran; (S.M.); (Z.A.)
| | - Ashkan Bigham
- Institute of Polymers, Composites and Biomaterials—National Research Council (IPCB-CNR), Viale J.F. Kennedy 54—Mostra d’Oltremare pad. 20, 80125 Naples, Italy;
| | - Fatemeh Khosravi
- Center for Nanotechnology and Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 117581, Singapore;
| | - Zahed Ahmadi
- Department of Chemistry, Amirkabir University of Technology, Tehran 15875-4413, Iran; (S.M.); (Z.A.)
| | - Mehdi Faraji
- School of Chemistry, College of Science, University of Tehran, Tehran 14155-6455, Iran;
| | - Hamidreza Abdouss
- Department of Polymer, Amirkabir University of Technology, Tehran 15875-4413, Iran;
| | - Seeram Ramakrishna
- Center for Nanotechnology and Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 117581, Singapore;
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31
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Chen P, Zhang Y, Qiao Q, Tao X, Liu P, Xie F. Comparison of the structure and properties of hydroxypropylated acid-hydrolysed maize starches with different amylose/amylopectin contents. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106134] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Ekaette I, Saldaña MDA. The Effect of Rutin on Starch Hydrogels/Aerogels Made from Electrolyzed Barley Flour. STARCH-STARKE 2020. [DOI: 10.1002/star.202000099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Idaresit Ekaette
- Department of Agricultural, Food and Nutritional Science University of Alberta Edmonton Alberta T6G 2P5 Canada
| | - Marleny D. A. Saldaña
- Department of Agricultural, Food and Nutritional Science University of Alberta Edmonton Alberta T6G 2P5 Canada
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33
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Dispat N, Poompradub S, Kiatkamjornwong S. Synthesis of ZnO/SiO 2-modified starch-graft-polyacrylate superabsorbent polymer for agricultural application. Carbohydr Polym 2020; 249:116862. [PMID: 32933689 DOI: 10.1016/j.carbpol.2020.116862] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 07/29/2020] [Accepted: 07/29/2020] [Indexed: 11/17/2022]
Abstract
A bio-based superabsorbent polymer (SAP) for agricultural application was synthesized from modified starch (MS) to enhance its antibacterial property and biodegradability. The starch was modified by zinc oxide and tetraethyl orthosilicate via a sol-gel reaction under an acidic condition. Structural and morphological examinations were used to confirm the modification. The MS showed a good antibacterial activity against Staphylococcus aureus and Escherichia coli with 61.9 % and 99.9 % reduction in viable cells, respectively, after a 1 h exposure. The MS was then graft copolymerized with potassium acrylate monomer to synthesize a new MS-g-polyacrylate (PA) SAP. The grafting reaction was confirmed and the main factors for agricultural applications along with its biodegradation and antibacterial properties were achieved. The MS-g-PA SAP exhibited an excellent reusability and biodegradation. Importantly, the MS-g-PA SAP did not impose growth inhibition of mung bean (Vigna radiata), but provided some transient drought relief.
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Affiliation(s)
- Nonpan Dispat
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sirilux Poompradub
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand; Green Materials for Industrial Application Research Unit, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Suda Kiatkamjornwong
- Office of Research Affairs, Chulalongkorn University, Bangkok 10330, Thailand; FRS (T), The Royal Society of Thailand, Sanam Suepa, Dusit, Bangkok 10300, Thailand
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34
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Lu K, Zhu J, Bao X, Liu H, Yu L, Chen L. Effect of starch microstructure on microwave-assisted esterification. Int J Biol Macromol 2020; 164:2550-2557. [PMID: 32798547 DOI: 10.1016/j.ijbiomac.2020.08.099] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/26/2020] [Accepted: 08/10/2020] [Indexed: 11/29/2022]
Abstract
Dry modification of starch, especially by microwave-assisted heating, has attracted increasing attention due to its various advantages, including energy saving, high conversion, rapidity, and avoidance of volatile organic solvents in organic synthesis. This work focuses on two fundamental issues: 1) effect of starch microstructure on dry modification; 2) effect of acid anhydride in solid and liquid states on the dry reaction, since their interfaces with solid starch are significantly different. Cornstarches with different amylose/amylopectin ratios were used to demonstrate the effect of starch microstructure, while two acid anhydrides, maleic (solid) and acetic (liquid) anhydrides, were used to study the reaction mechanisms. FTIR, SEM, XRD, and DSC were used to study the performance of modified starches and the mechanisms. It was found that the degree of substitution (DS) of starches modified by maleic anhydride generally increased with increasing amylose content since amylose contains more hydroxyl groups, resulting in higher sensitivity to microwaves. On the other hand, the DS of starches modified by acetic anhydride increased with increasing amylopectin content, since liquid acetic acid can diffuse into high-amylopectin starch granules. The higher amylopectin starches, waxy and maize, showed higher RC(%) and ∆H(%) than that of higher amylose starches G50 and G80.
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Affiliation(s)
- Kai Lu
- Centre for Polymer from Renewable Resource, SFSE, SCUT, Guangzhou 510640, China
| | - Jian Zhu
- Centre for Polymer from Renewable Resource, SFSE, SCUT, Guangzhou 510640, China
| | - Xianyang Bao
- Centre for Polymer from Renewable Resource, SFSE, SCUT, Guangzhou 510640, China
| | - Hongsheng Liu
- Centre for Polymer from Renewable Resource, SFSE, SCUT, Guangzhou 510640, China; Sino-Singapore International Joint Research Institute, Guangzhou Knowledge City, Guangzhou 510663, China.
| | - Long Yu
- Centre for Polymer from Renewable Resource, SFSE, SCUT, Guangzhou 510640, China; Sino-Singapore International Joint Research Institute, Guangzhou Knowledge City, Guangzhou 510663, China.
| | - Ling Chen
- Centre for Polymer from Renewable Resource, SFSE, SCUT, Guangzhou 510640, China
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35
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Chen L, Xiong Z, Xiong H, Din ZU. Investigating the structure and self-assembly behavior of starch-g-VAc in starch-based adhesive by combining NMR analysis and multi-scale simulation. Carbohydr Polym 2020; 246:116655. [PMID: 32747287 DOI: 10.1016/j.carbpol.2020.116655] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/03/2020] [Accepted: 06/15/2020] [Indexed: 10/24/2022]
Abstract
This work investigated the structure and self-assembly behavior of grafted starch (GS) prepared by grafting vinyl acetate (VAc) on the starch molecule. Our preliminary structure characterization, NMR, and quantum mechanical simulation demonstrated the C2 of the glucose unit as the main grafting site. The grafting frequency and chain length (starch, VAc) were calculated based on the result of gel permeation chromatography. Molecular dynamics simulation showed that, when compared with native starch, GS had less hydrogen bonding interaction, lower orderness, and higher extensibility, which were supported by the experimental results. In dissipative particle dynamics simulation, GS was shown to self-assemble into a core-shell structure (latex) and form a bridge structure with cross-linking interaction. The overall results indicate that chain entanglement and hydrogen bonding interaction of starch play a significant role in adhesive curing. This research provides a novel insight into the grafting and molecular interaction mechanism in the GS adhesive system.
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Affiliation(s)
- Lei Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhouyi Xiong
- Fisheries research institute, Wuhan academy of agricultural sciences, Wuhan, 430207, China.
| | - Hanguo Xiong
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Zia-Ud Din
- Department of Agriculture, University of Swabi, Anbar, 23561 Khyber Pakhtunkhwa, Pakistan
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36
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Xiong R, Yu X, Zhang Y, Peng Z, Yu L, Cheng L, Li T. Comparison of agricultural wastes and synthetic macromolecules as solid carbon source in treating low carbon nitrogen wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 739:139885. [PMID: 32534311 DOI: 10.1016/j.scitotenv.2020.139885] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 05/31/2020] [Accepted: 05/31/2020] [Indexed: 06/11/2023]
Abstract
This paper investigated the feasibility of using agricultural wastes and synthetic macromolecules as solid carbon sources and studied the effects of improvement of denitrification by the selected agricultural wastes. The carbon release capacity and denitrification performance of corncob (CC), peanut shell (PS), obsolescent rice (OR) and polycaprolactone (PCL), poly butylene succinate (PBS), polyvinyl alcohol sodium alginate (PVA-SA) were systematically analyzed. The results showed that for each carbon source, the first-order kinetic equation was basically followed during the carbon release process. PVA-SA, CC and PS had higher carbon release capacity with accumulative dissolved organic carbon (DOC) of 16.22-20.63 mg·g-1 and chemical oxygen demand (COD) of 100.86-134.10 mg·g-1. Correspondingly, they showed excellent denitrification performance with almost no residual NO3--N, and the denitrification process well followed the Monod equation. PCL, PBS and OR had lower carbon release capacity with accumulative DOC of 2.06-3.14 mg·g-1 and COD of 13.29-24.13 mg·g-1, respectively. Nevertheless, these materials can also improve the denitrification performance, with the residual NO3--N in the range of 6.02-6.36 mg·L-1, and the effluent DOC was in the range of 10-15 mg·L-1. Synthetic polymers are more suitable for nitrogen removal in groundwater treatment, while agricultural wastes are ideal carbon sources for secondary effluent treatment.
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Affiliation(s)
- Rui Xiong
- Key Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
| | - Xinxiao Yu
- Key Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China.
| | - Yonge Zhang
- Institute of Sediment Research, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
| | - Zhaoxu Peng
- School of Water Conservancy & Environment, Zhengzhou University, Zhengzhou 450001, China
| | - Luji Yu
- School of Water Conservancy & Environment, Zhengzhou University, Zhengzhou 450001, China
| | - Lulu Cheng
- School of Water Conservancy & Environment, Zhengzhou University, Zhengzhou 450001, China
| | - Tingmei Li
- Research Center for Environmental Policy Planning & Assessment of Zhengzhou University, Zhengzhou 450002, China
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37
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Wang L, Zhang X, Xu J, Wang Q, Fan X. Synthesis of partly debranched starch-g-poly(2-acryloyloxyethyl trimethyl ammonium chloride) catalyzed by horseradish peroxidase and the effect on adhesion to polyester/cotton yarn. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.07.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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Fabrication and characterization of a starch-based superabsorbent hydrogel composite reinforced with cellulose nanocrystals from potato peel waste. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124962] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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39
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Effects of tamarind seed polysaccharide on gelatinization, rheological, and structural properties of corn starch with different amylose/amylopectin ratios. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105854] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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40
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Zhang Q, Wang Z, Zhang C, Aluko RE, Yuan J, Ju X, He R. Structural and functional characterization of rice starch-based superabsorbent polymer materials. Int J Biol Macromol 2020; 153:1291-1298. [DOI: 10.1016/j.ijbiomac.2019.10.264] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/14/2019] [Accepted: 10/28/2019] [Indexed: 01/28/2023]
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41
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Mate CJ, Mishra S, Srivastava P. In vitro release kinetics of graft matrices from Lannea coromandelica (Houtt) gum for treatment of colonic diseases by 5-ASA. Int J Biol Macromol 2020; 149:908-920. [DOI: 10.1016/j.ijbiomac.2020.02.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/31/2020] [Accepted: 02/03/2020] [Indexed: 11/28/2022]
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42
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Chen L, Dai R, Shan Z, Chen H. Fabrication and characterization of one high-hygroscopicity liquid starch-based mulching materials for facilitating the growth of plant. Carbohydr Polym 2020; 230:115582. [PMID: 31887860 DOI: 10.1016/j.carbpol.2019.115582] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 11/04/2019] [Accepted: 11/06/2019] [Indexed: 11/18/2022]
Abstract
One high-performance liquid starch-based mulching materials (LSMM) was successfully fabricated by grafting polyacrylic acid (PAA) onto starch then crosslinking with N,N'-methylene-bisacrylamide (MBA). The effects of the dosage of acrylic acid on the performances of LSMM film had been explored. The LSMM was characterized by FTIR, solid state 13C NMR, XRD and SEM. Their application performances by spraying the LSMM on the soil surface also had been discussed. The PAA grafted onto starch significantly improved the properties of LSMM film (tensile strength 20.89 MPa, elongation at break 59.19 %, water absorbency 68.58 g/g and solubility in water 4.5 %). The PAA broke the hydrogen bonds and reduced the crystallinity of starch molecule, which can form the compact structure in LSSM film. As a result, the LSMM showed excellent relative hygroscopicity, water retention, degradability (weight loss 72.61 %) and the effect of facilitating the growth and germination ratio (84.00 %) of lettuce.
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Affiliation(s)
- Liwei Chen
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China; The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China
| | - Rui Dai
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China; The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China
| | - Zhihua Shan
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China; The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China
| | - Hui Chen
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China; The Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China.
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43
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Wang L, Zhang X, Xu J, Wang Q, Fan X. How starch-g-poly(acrylamide) molecular structure effect sizing properties. Int J Biol Macromol 2020; 144:403-409. [PMID: 31862373 DOI: 10.1016/j.ijbiomac.2019.12.143] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/16/2019] [Accepted: 12/16/2019] [Indexed: 11/19/2022]
Abstract
The effect of starch-g-poly(acrylamide) (S-g-PAM) molecular structure on sizing properties has been investigated. S-g-PAMs were synthesized with the catalysis of horseradish peroxidase (HRP) and Fourier transform infrared (FT-IR) confirmed the acrylamide (AM) units had been successfully grafted on starch chains. Structural parameters, including degree of branching (DB), degree of substitution (DS) and grafting ratio (GR) were characterized by 1H nuclear magnetic resonance (1H NMR), and were correlated with sizing properties of apparent viscosity, adhesion to cotton yarns and film mechanical properties. The apparent viscosity of S-g-PAMs has no obvious correlation with DB and DS (or GR), as the amylose content of the native starch might have more influence on the viscosity of grafted starches. DS (or GR) values of grafted starches have a positive relationship with the tensile strength of sized cotton yarns and are negatively related with tensile strength of starch film. These results can provide guidance in the section of starch with improved sizing properties.
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Affiliation(s)
- Lili Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, 1800 Lihu AVE, Wuxi 214122, Jiangsu, China
| | - Xun Zhang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, 1800 Lihu AVE, Wuxi 214122, Jiangsu, China
| | - Jin Xu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, 1800 Lihu AVE, Wuxi 214122, Jiangsu, China
| | - Qiang Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, 1800 Lihu AVE, Wuxi 214122, Jiangsu, China
| | - Xuerong Fan
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, 1800 Lihu AVE, Wuxi 214122, Jiangsu, China.
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44
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Lapointe M, Barbeau B. Understanding the roles and characterizing the intrinsic properties of synthetic vs. natural polymers to improve clarification through interparticle Bridging: A review. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.115893] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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45
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Duquette D, Nzediegwu C, Portillo‐Perez G, Dumont M, Prasher S. Eco‐Friendly Synthesis of Hydrogels from Starch, Citric Acid, and Itaconic Acid: Swelling Capacity and Metal Chelation Properties. STARCH-STARKE 2020. [DOI: 10.1002/star.201900008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Daniel Duquette
- Bioresource Engineering DepartmentMcGill University 21111 Lakeshore Rd. Ste‐Anne‐de‐Bellevue QC H9X 3V9 Canada
| | - Christopher Nzediegwu
- Bioresource Engineering DepartmentMcGill University 21111 Lakeshore Rd. Ste‐Anne‐de‐Bellevue QC H9X 3V9 Canada
| | - Guillermo Portillo‐Perez
- Bioresource Engineering DepartmentMcGill University 21111 Lakeshore Rd. Ste‐Anne‐de‐Bellevue QC H9X 3V9 Canada
| | - Marie‐Josée Dumont
- Bioresource Engineering DepartmentMcGill University 21111 Lakeshore Rd. Ste‐Anne‐de‐Bellevue QC H9X 3V9 Canada
| | - Shiv Prasher
- Bioresource Engineering DepartmentMcGill University 21111 Lakeshore Rd. Ste‐Anne‐de‐Bellevue QC H9X 3V9 Canada
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46
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Siyamak S, Laycock B, Luckman P. Synthesis of starch graft-copolymers via reactive extrusion: Process development and structural analysis. Carbohydr Polym 2020; 227:115066. [DOI: 10.1016/j.carbpol.2019.115066] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 07/05/2019] [Accepted: 07/05/2019] [Indexed: 02/07/2023]
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47
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Guowei Z, Lili W, Yufeng L, Hailei W. Impact of the fermentation broth of Ganoderma lucidum on the quality of Chinese steamed bread. AMB Express 2019; 9:133. [PMID: 31456077 PMCID: PMC6712117 DOI: 10.1186/s13568-019-0859-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 08/17/2019] [Indexed: 12/17/2022] Open
Abstract
The potential of fermentation broth of Ganoderma lucidum (FBG) in improving the quality of Chinese steamed bread (CSB) was firstly evaluated. The sensory quality scores of CSB treated by FBG are significantly higher than that of CSB in the control, and texture profile analysis also indicates the increase of CSB hardness and chewiness caused by FBG. Observation on micro-structure of CSB shows that formation of larger pores and expansion of starch granules are the important reasons for the improvement of CSB specific volume (volS), and granule expansion is due to that gluten network distributed in CSB is destroyed as a result of cross-linkage of flour proteins catalyzed by laccase, which makes starch granules releasing from the network easily contact with steam or other enzymes during the proofing and steaming of dough. Moreover, FBG contains amylases which not only convert amylopectin to amylose, but also degrade starch to glucose, maltose and polysaccharides, correspondingly resulting in changes of amylose/amylopectin (Ae/An) ratio of flour and CSB volS, and the latter is because more CO2 produced by the yeast during CSB making leads to the larger pore area in crumb. Both hardness and chewiness are determined by the comprehensive effect of protein cross-linkage, Ae/An ratio and volS change, and this viewpoint gives a logical explanation for the effects of 0.025–0.10 ml/g of FBG on hardness and chewiness of CSB.
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48
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Zhao T, Li X, Zhu R, Ma Z, Liu L, Wang X, Hu X. Effect of natural fermentation on the structure and physicochemical properties of wheat starch. Carbohydr Polym 2019; 218:163-169. [DOI: 10.1016/j.carbpol.2019.04.061] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 12/12/2022]
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49
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Superabsorbent polymers: A review on the characteristics and applications of synthetic, polysaccharide-based, semi-synthetic and ‘smart’ derivatives. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.04.054] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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50
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Wu WC, Hsiao PY, Huang YC. Effects of amylose content on starch-chitosan composite film and its application as a wound dressing. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1770-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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