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Preparation and characterization of deacetylated konjac glucomannan / pectin composite films crosslinked with calcium hydroxide. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03090-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Chibrikov V, Pieczywek PM, Zdunek A. Tailor-Made Biosystems - Bacterial Cellulose-Based Films with Plant Cell Wall Polysaccharides. POLYM REV 2022. [DOI: 10.1080/15583724.2022.2067869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Vadym Chibrikov
- Institute of Agrophysics, Polish Academy of Sciences, Lublin, Poland
| | | | - Artur Zdunek
- Institute of Agrophysics, Polish Academy of Sciences, Lublin, Poland
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Xu X, Pang J. Fabrication and Characterization of Composite Biofilm of Konjac Glucomannan/Sodium Lignosulfonate/ε-Polylysine with Reinforced Mechanical Strength and Antibacterial Ability. Polymers (Basel) 2021; 13:polym13193367. [PMID: 34641178 PMCID: PMC8512274 DOI: 10.3390/polym13193367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/25/2021] [Accepted: 09/27/2021] [Indexed: 12/05/2022] Open
Abstract
In order to enforce the mechanical strength and antibacterial ability of biofilm and explore the underlying mechanism, sodium lignosulfonate (SL) and ε-polylysine (ε-PL) were introduced to fabricate the composite film of konjac glucomannan (KGM)/SL/ε-PL in the present study. According to our previous method, 1% (w/v) of KGM was the optimal concentration for the film preparation method, on the basis of which the amount of SL and ε-PL were screened by mechanical properties enforcement of film. The structure, mechanical performance and thermal stability of the film were characterized by SEM, FTIR, TGA and tensile strength tests. The optimized composite film was comprised of KGM 1% (w/v), SL 0.2% (w/v), and ε-PL 0.375% (w/v). The tensile strength (105.97 ± 4.58 MPa, p < 0.05) and elongation at break (95.71 ± 5.02%, p < 0.05) of the KGM/SL/ε-PL composite film was greatly improved compared with that of KGM. Meanwhile, the thermal stability and antibacterial property of film were also enhanced by the presence of SL and ε-PL. In co-culturation mode, the KGM/SL/ε-PL composite film showed good inhibitory effect on Escherichia coli (22.50 ± 0.31 mm, p < 0.05) and Staphylococcus aureus (19.69 ± 0.36 mm, p < 0.05) by determining the inhibition zone diameter. It was revealed that KGM/SL/ε-PL composite film shows enhanced mechanical strength and reliable antibacterial activities and it could be a potential candidate in the field of food packaging.
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Affiliation(s)
| | - Jie Pang
- Correspondence: ; Tel.: +86-186-5073-1906
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Koncz D, Tóth B, Roza O, Csupor D. A Systematic Review of the European Rapid Alert System for Food and Feed: Tendencies in Illegal Food Supplements for Weight Loss. Front Pharmacol 2021; 11:611361. [PMID: 33574758 PMCID: PMC7870490 DOI: 10.3389/fphar.2020.611361] [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: 09/28/2020] [Accepted: 12/24/2020] [Indexed: 12/11/2022] Open
Abstract
Background: Slimming products represent a dynamically growing group of food supplements worldwide. The efficacy of safely usable natural ingredients is usually below consumers' expectations. Certain manufacturers add unauthorized or prohibited ingredients to weight loss supplements in order to increase their efficacy. Hence, many of these products are adulterated and may pose a risk to the consumers' health. Aims: The aim of our work was to give an overview on natural ingredients used in slimming products, to summarize the frequently used synthetic adulterants and also to assess the trends of adulterated and illegal food supplements in the European Union based on the warnings of the Rapid Alert System for Food and Feed (RASFF) in the time period of 1988-2019. Methods: Reports between 1988-2019 were extracted from the RASFF portal on January 1, 2020. Each entry was individually reviewed. Results: 2,559 records of food supplements with quality problems were identified in the RASFF, several of which [319 (12,5%)] were marketed to facilitate weight loss. 202 (63,3%) contained unapproved, synthetic drug ingredients. The major adulterant (113 of 319, 35.4%) was DNP (2,4-dinitrophenol), whereas sibutramine was the second most frequent adulterant agent (69 products, 21,6%) between 1988 and 2019. Conclusion: The number of approved medicines for the indication of weight loss is relatively low and their efficacy (and also that of the natural ingredients) is limited. Therefore, a significant number of weight loss supplements is adulterated to satisfy patients' expectations. Hence, these products may cause serious adverse effects in sensitive patients.
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Affiliation(s)
- Dorottya Koncz
- Department of Pharmacognosy, University of Szeged, Szeged, Hungary
| | - Barbara Tóth
- Department of Pharmacognosy, University of Szeged, Szeged, Hungary
- Medical School, Institute for Translational Medicine, University of Pécs, Pécs, Hungary
| | - Orsolya Roza
- Department of Pharmacognosy, University of Szeged, Szeged, Hungary
- Medical School, Institute for Translational Medicine, University of Pécs, Pécs, Hungary
| | - Dezső Csupor
- Department of Pharmacognosy, University of Szeged, Szeged, Hungary
- Medical School, Institute for Translational Medicine, University of Pécs, Pécs, Hungary
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Santos NL, Ragazzo GDO, Cerri BC, Soares MR, Kieckbusch TG, da Silva MA. Physicochemical properties of konjac glucomannan/alginate films enriched with sugarcane vinasse intended for mulching applications. Int J Biol Macromol 2020; 165:1717-1726. [PMID: 33069823 DOI: 10.1016/j.ijbiomac.2020.10.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 10/04/2020] [Accepted: 10/07/2020] [Indexed: 02/07/2023]
Abstract
Biodegradable films are a promising strategy to reduce the environmental impact caused by conventional plastics commonly used in agriculture. This study focused on the production and characterization of Konjac glucomannan (KGM) and alginate (ALG) based films enriched with sugarcane vinasse (VIN), a nutrient-rich wastewater generated in large volumes by the sugar-ethanol producing industries. ALG, KGM and ALG/KGM blended (50:50) films were produced by casting and treated with calcium ions (Ca2+) (ALG films) and a combination of Ca2+, alkali, and ethanol (KGM and ALG/KGM films). Vinasse addition tended to reduce transparency and water resistance of the films and had less effect on their mechanical properties. Crosslinking of ALG films resulted in enhanced mechanical properties and reduced moisture content, water solubility, swelling, water vapor permeability, and flexibility. KGM films were less impacted by crosslinking/deacetylation but showed improved water resistance while maintain a high degree of swelling (290% and 185% for KGM and KGM/VIN films respectively). Blended films exhibited characteristic properties of the two biopolymers and adequate compatibility indicated by Fourier transform infrared spectroscopy (FTIR) and morphologies. Vinasse-added ALG/KGM films represent a novel nutrient-enriched, bio-based material for agricultural applications and could help to face the environmental challenges imposed by vinasse disposal.
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Affiliation(s)
- Nathalia Leal Santos
- Center of Agricultural Sciences, Federal University of São Carlos, Rodovia Anhanguera, km 174, 13600-970 Araras, SP, Brazil
| | - Gabriel de Oliveira Ragazzo
- Center of Agricultural Sciences, Federal University of São Carlos, Rodovia Anhanguera, km 174, 13600-970 Araras, SP, Brazil
| | - Bianca Carreiro Cerri
- Center of Agricultural Sciences, Federal University of São Carlos, Rodovia Anhanguera, km 174, 13600-970 Araras, SP, Brazil
| | - Marcio Roberto Soares
- Center of Agricultural Sciences, Federal University of São Carlos, Rodovia Anhanguera, km 174, 13600-970 Araras, SP, Brazil
| | - Theo Guenter Kieckbusch
- School of Chemical Engineering, University of Campinas, Av. Albert Einstein 500, 13083-852 Campinas, SP, Brazil
| | - Mariana Altenhofen da Silva
- Center of Agricultural Sciences, Federal University of São Carlos, Rodovia Anhanguera, km 174, 13600-970 Araras, SP, Brazil.
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Gomes Neto RJ, Genevro GM, Paulo LDA, Lopes PS, de Moraes MA, Beppu MM. Characterization and in vitro evaluation of chitosan/konjac glucomannan bilayer film as a wound dressing. Carbohydr Polym 2019; 212:59-66. [DOI: 10.1016/j.carbpol.2019.02.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/20/2018] [Accepted: 02/06/2019] [Indexed: 01/23/2023]
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7
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Characterization of calcium alginate/ deacetylated konjac glucomannan blend films prepared by Ca2+ crosslinking and deacetylation. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2018.04.022] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wang L, Yuan Y, Mu RJ, Gong J, Ni Y, Hong X, Pang J, Wu C. Mussel-Inspired Fabrication of Konjac Glucomannan/Poly (Lactic Acid) Cryogels with Enhanced Thermal and Mechanical Properties. Int J Mol Sci 2017; 18:E2714. [PMID: 29258196 PMCID: PMC5751315 DOI: 10.3390/ijms18122714] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/30/2017] [Accepted: 12/12/2017] [Indexed: 11/25/2022] Open
Abstract
Three-dimensional nanofibers cryogels (NFCs) with both thermally-tolerant and mechanically-robust properties have potential for wide application in biomedical or food areas; however, creating such NFCs has proven to be extremely challenging. In this study, konjac glucomannan (KGM)/poly (lactic acid) (PLA)-based novel NFCs were prepared by the incorporation of the mussel-inspired protein polydopamine (PDA) via a facile and environmentally-friendly electrospinning and freeze-shaping technique. The obtained KGM/PLA/PDA (KPP) NFCs were characterized by field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and compressive and tensile test. The results showed that the hierarchical cellular structure and physicochemical properties of KPP NFCs were dependent on the incorporation of PDA content. Moreover, the strong intermolecular hydrogen bond interactions among KGM, PLA and PDA also gave KPP NFCs high thermostability and mechanically-robust properties. Thus, this study developed a simple approach to fabricate multifunctional NFCs with significant potential for biomedical or food application.
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Affiliation(s)
- Lin Wang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Yi Yuan
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Ruo-Jun Mu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Jingni Gong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Yongsheng Ni
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Xin Hong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Chunhua Wu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Shahbazi M, Rajabzadeh G, Rafe A, Ettelaie R, Ahmadi SJ. Physico-mechanical and structural characteristics of blend film of poly (vinyl alcohol) with biodegradable polymers as affected by disorder-to-order conformational transition. Food Hydrocoll 2017. [DOI: 10.1016/j.foodhyd.2017.04.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Shahbazi M, Rajabzadeh G, Rafe A, Ettelaie R, Ahmadi SJ. The physico-mechanical and structural characteristics of blend film of poly (vinyl alcohol) with biodegradable polymers as affected by disorder-to-order conformational transition. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.03.038] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Glucomannan based polyurethanes: A critical short review of recent advances and future perspectives. Int J Biol Macromol 2016; 87:229-36. [DOI: 10.1016/j.ijbiomac.2016.02.058] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 02/20/2016] [Accepted: 02/23/2016] [Indexed: 11/18/2022]
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12
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Zhao FY, An QF, Ji YL, Gao CJ. A novel type of polyelectrolyte complex/MWCNT hybrid nanofiltration membranes for water softening. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.05.041] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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dos Santos MA, Grenha A. Polysaccharide nanoparticles for protein and Peptide delivery: exploring less-known materials. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 98:223-61. [PMID: 25819281 DOI: 10.1016/bs.apcsb.2014.11.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Finding adequate carriers for protein and peptide delivery has become an urgent need, owing to the growing number of macromolecules identified as having therapeutic potential. Nanoparticles have emerged in the field as very promising vehicles and much work has been directed to testing the capacity of different materials to compose the matrix of these carriers. Natural materials and, specifically, polysaccharides have been taking the forefront of the challenge, because of several favoring properties that include the higher propensity to exhibit biodegradability and biocompatibility, and also the high structural flexibility. The majority of works found in the literature regarding polysaccharide nanoparticles uses very popular materials like chitosan or hyaluronic acid. This review is aimed at describing and exploring the potential of polysaccharides that are not so well known or that are less explored. For those, the main properties will be described, together with an overview of the reported applications as nanoparticle matrix materials.
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Affiliation(s)
- Marlise A dos Santos
- Joan-Vernikos Aerospace Pharmacy Laboratory, School of Pharmacy, Microgravity Centre, Pontifical Catholic University of Rio Grande do Sul PUCRS, Porto Alegre, Brazil
| | - Ana Grenha
- CBME-Centre for Molecular and Structural Biomedicine/IBB-Institute for Biotechnology and Bioengineering, Faculty of Sciences and Technology, University of Algarve, Campus de Gambelas, Faro, Portugal.
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Dai Y, Yan H, Zhang B, Wu W, Yang L, Li S, Li W, Li H, Yan L, Shan D, Feng Y, Terui N, Tanaka S. A novel adsorbent obtained by caging activated carbon by konjac glucomannan gel for elimination of organic compounds. J Appl Polym Sci 2014. [DOI: 10.1002/app.40542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yingjie Dai
- Laboratory of Environmental Remediation; School of Resources Environment; Northeast Agricultural University; Harbin 150030 China
- State Key Laboratory of Urban Water Resource and Environment; Harbin Institute of Technology; Harbin 150090 China
- Key Laboratory of National Education Department; Soybean Research Institute; Northeast Agricultural University; Harbin 150030 China
| | - Hong Yan
- College of Chemistry and Environmental Engineering; Harbin University of Science and Technology, Key Laboratory of Green Chemical Technology of College of Heilongjiang Province; Harbin 150080 China
| | - Binbin Zhang
- Key Laboratory of National Education Department; Soybean Research Institute; Northeast Agricultural University; Harbin 150030 China
| | - Wenting Wu
- Laboratory of Environmental Remediation; School of Resources Environment; Northeast Agricultural University; Harbin 150030 China
| | - Liqiong Yang
- School of Biology and Environment Engineering; Shenyang University; Shenyang 110044 China
| | - Shufeng Li
- College of Life Science; Northeast Agricultural University; Harbin 150030 China
| | - Wenbin Li
- Key Laboratory of National Education Department; Soybean Research Institute; Northeast Agricultural University; Harbin 150030 China
| | - Hongtao Li
- Laboratory of Environmental Remediation; School of Resources Environment; Northeast Agricultural University; Harbin 150030 China
| | - Lilong Yan
- Laboratory of Environmental Remediation; School of Resources Environment; Northeast Agricultural University; Harbin 150030 China
| | - Dexin Shan
- Laboratory of Environmental Remediation; School of Resources Environment; Northeast Agricultural University; Harbin 150030 China
| | - Yujie Feng
- State Key Laboratory of Urban Water Resource and Environment; Harbin Institute of Technology; Harbin 150090 China
| | - Norifumi Terui
- Ichinoseki National College of Technology; Ichinoseki 021-8511 Japan
| | - Shunitz Tanaka
- Graduate School of Environmental Earth Science; Hokkaido University; Sapporo 060-0810 Japan
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Mikkonen KS, Tenkanen M. Sustainable food-packaging materials based on future biorefinery products: Xylans and mannans. Trends Food Sci Technol 2012. [DOI: 10.1016/j.tifs.2012.06.012] [Citation(s) in RCA: 156] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Yan LY, Chen H, Li P, Kim DH, Chan-Park MB. Finely dispersed single-walled carbon nanotubes for polysaccharide hydrogels. ACS APPLIED MATERIALS & INTERFACES 2012; 4:4610-4615. [PMID: 22909447 DOI: 10.1021/am300985p] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Here we demonstrate a polysaccharide hydrogel reinforced with finely dispersed single-walled carbon nanotubes (SWNTs) using biocompatible dispersants O-carboxymethylchitosan (OC) and chondroitin sulfate A (CS-A) as a structural support. Both of the dispersants can disperse SWNTs in aqueous solutions and hydrogel matrix as individual tubes or small bundles. Additionally, we have found that compressive modulus and strain of the hydrogels reinforced with SWNTs were enhanced as much as two times by the addition of a few weight percent of SWNTs. Moreover, the SWNT-incorporated hydrogels exhibited lower impedance and higher charge capacity than the alginate/dispersant hydrogel without SWNTs. The OC and the CS-A demonstrated much higher reinforcing enhancement than a commercially available dispersant, sodium dodecyl sulfate. Combined with the experimental data on the mechanical and electrical properties, the biocompatibility of OC and CS-A can provide the possibility of biomedical application of the SWNT-reinforced hydrogels.
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Affiliation(s)
- Liang Yu Yan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457, Singapore
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Li Q, Qi W, Su R, He Z. Preparation and Characterization of Enzyme-Modified Konjac Glucomannan/Xanthan Blend Films. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 20:299-310. [DOI: 10.1163/156856209x412173] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Qiujin Li
- a Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Wei Qi
- b Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Rongxin Su
- c Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Zhimin He
- d Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
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18
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Synthesis of cyanoethyl konjac glucomannan and its liquid crystalline behavior in an ionic liquid. JOURNAL OF POLYMER RESEARCH 2011. [DOI: 10.1007/s10965-011-9758-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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An NT, Thien DT, Dong NT, Le Dung P, Hanh PTB, Nhi TTY, Vu DA. A simple methylation method for obtaining water-soluble O-methyl glucomannan derivatives. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.11.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Xiao C, Liu H, Lu Y, Zhang L. BLEND FILMS FROM SODIUM ALGINATE AND GELATIN SOLUTIONS. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2007. [DOI: 10.1081/ma-100103352] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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22
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Lu J, Zhang J, Xiao C. Preparation and characterization of konjac glucomannan/poly(diallydimethylammonium chloride) blend films. J Appl Polym Sci 2007. [DOI: 10.1002/app.26732] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Wang B, Jia DY, Ruan SQ, Qin S. Structure and properties of collagen-konjac glucomannan-sodium alginate blend films. J Appl Polym Sci 2007. [DOI: 10.1002/app.26670] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Hartman J, Albertsson AC, Lindblad MS, Sjöberg J. Oxygen barrier materials from renewable sources: Material properties of softwood hemicellulose-based films. J Appl Polym Sci 2006. [DOI: 10.1002/app.22958] [Citation(s) in RCA: 157] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yu H, Huang A, Xiao C. Characteristics of konjac glucomannan and poly(acrylic acid) blend films for controlled drug release. J Appl Polym Sci 2006. [DOI: 10.1002/app.23634] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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26
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Li B, Xia J, Wang Y, Xie B. Structure characterization and its antiobesity of ball-milled konjac flour. Eur Food Res Technol 2005. [DOI: 10.1007/s00217-005-0119-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Zhang YQ, Xie BJ, Gan X. Advance in the applications of konjac glucomannan and its derivatives. Carbohydr Polym 2005. [DOI: 10.1016/j.carbpol.2004.11.003] [Citation(s) in RCA: 215] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
The term antimicrobialpackaging encompasses any packaging technique(s) used to control microbial growth in a food product. These include packaging materials and edible films and coatings that contain antimicrobial agents and also techniques that modify the atmosphere within the package. In recent years, antimicrobial packaging has attracted much attention from the food industry because of the increase in consumer demand for minimally processed, preservative-free products. Reflecting this demand, the preservative agents must be applied to packaging in such away that only low levels of preservatives come into contact with the food. The film or coating technique is considered to be more effective, although more complicated to apply. New antimicrobial packaging materials are continually being developed. Many of them exploit natural agents to control common food-borne microorganisms. Current trends suggest that, in due course, packaging will generally incorporate antimicrobial agents, and the sealing systems will continue to improve. The focus of packaging in the past has been on the appearance, size, and integrity of the package. A greater emphasis on safety features associated with the addition of antimicrobial agents is perhaps the next area for development in packaging technology.
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Affiliation(s)
- Dong Su Cha
- Department of Food Science and Technology, University of Georgia, Griffin, GA 30223-1797, USA
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Liu C, Xiao C. Characterization of konjac glucomannan-quaternized poly(4-vinyl-N-butyl) pyridine blend films and their preservation effect. J Appl Polym Sci 2004. [DOI: 10.1002/app.20646] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Suppakul P, Miltz J, Sonneveld K, Bigger S. Active Packaging Technologies with an Emphasis on Antimicrobial Packaging and its Applications. J Food Sci 2003. [DOI: 10.1111/j.1365-2621.2003.tb05687.x] [Citation(s) in RCA: 581] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Controlled release beads were prepared by using alginate (ALG), konjac glucomannan (KGM) and chitosan (CHI). Bovine serum albumin and insulin were used as model proteins for in vitro assessments. It was observed that KGM could be contained within beads, and faintness hydrogen binding and electrostatic interaction exist between ALG and KGM by infrared spectra. Clear dents were found on the surface of beads using KGM by scanning electron microscopy. Use of KGM could help increase the payload of drug. After beads were treated by 0.1 N HCl for 4 h and put into pH 7.4 buffers, protein was released from ALG-CHI beads within 1 h, while it was lost from ALG-KGM-CHI beads for 3 h. However, the leaking of protein from ALG-KGM-CHI beads was also increased in 0.1 N HCl solution. Concentration of gelling ion had great effect on release rate and gel structure. Studies of water of hydration had shown that swelling of ALG-KGM-CHI beads was higher than that of ALG-CHI beads in acidic solution, but the opposite result was obtained in alkali solution. The result indicated that the diffusion of protein was related to the viscosity and swelling properties of KGM.
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Affiliation(s)
- Kang Wang
- Enzyme Technology Laboratory, Chemical Engineering Research Center, Tianjin University, Tianjin 300072, PR China
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Xiao C, Weng L, Zhang L. Improvement of physical properties of crosslinked alginate and carboxymethyl konjac glucomannan blend films. J Appl Polym Sci 2002. [DOI: 10.1002/app.10582] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Cheng L, Abd Karim A, Norziah M, Seow C. Modification of the microstructural and physical properties of konjac glucomannan-based films by alkali and sodium carboxymethylcellulose. Food Res Int 2002. [DOI: 10.1016/s0963-9969(02)00086-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Gao S, Zhang L. Molecular Weight Effects on Properties of Polyurethane/Nitrokonjac Glucomannan Semiinterpenetrating Polymer Networks. Macromolecules 2001. [DOI: 10.1021/ma001766m] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shanjun Gao
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Lina Zhang
- Department of Chemistry, Wuhan University, Wuhan 430072, China
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Xiao C, Lu Y, Liu H, Zhang L. Preparation and characterization of konjac glucomannan and sodium carboxymethylcellulose blend films. J Appl Polym Sci 2001. [DOI: 10.1002/1097-4628(20010404)80:1<26::aid-app1070>3.0.co;2-b] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Xiao C, Lu Y, Zhang L. Preparation and physical properties of konjac glucomannan-polyacrylamide blend films. J Appl Polym Sci 2001. [DOI: 10.1002/app.1507] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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