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Korica M, Mihajlovski K, Mohan T, Kostić M. Films based on TEMPO-oxidized chitosan nanoparticles: Obtaining and potential application as wound dressings. Carbohydr Res 2024; 542:109203. [PMID: 38964016 DOI: 10.1016/j.carres.2024.109203] [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: 03/17/2024] [Revised: 06/27/2024] [Accepted: 06/30/2024] [Indexed: 07/06/2024]
Abstract
A series of novel films based on TEMPO-oxidized chitosan nanoparticles were prepared by casting method. Fourier transform infrared spectroscopy (FTIR) was employed to ascertain the chemical structure of TEMPO-oxidized chitosan. The surface morphology of the TEMPO-oxidized chitosan nanoparticles was analyzed by atomic force microscopy (AFM). The physicochemical (area density, thickness, iodine sorption, roughness), functional (moisture sorption, liquid absorption capacity, weight loss upon contact with the liquid, and water vapor transmission rate), antibacterial, and antioxidant properties of films based on TEMPO-oxidized chitosan nanoparticles were also investigated. The physicochemical properties of the films varied widely: area density ranged from 77.83 ± 0.06 to184.46 ± 0.05 mg/cm2, thickness varied between 80.5 ± 1.6 and 200.5 ± 1.6 μm, iodine sorption spanned from 333.7 ± 2.1 to166.4 ± 2.2 mg I2/g, and roughness ranged from 4.1 ± 0.2 to 5.6 ± 0.3 nm. Similarly, the functional properties also varied significantly: moisture sorption ranged from 4.76 ± 0.03 to 9.62 ± 0.11 %, liquid absorption capacity was between 129.04 ± 0.24 and 159.33 ± 0.73 % after 24 h, weight loss upon contact with the liquid varied between 31.06 ± 0.35 and 45.88 ± 0.58 % after 24 h and water vapor transmission rate ranged from 1220.10 ± 2.91to1407.77 ± 5.22 g/m2 day. Despite the wide variations in physicochemical and functional properties, all films showed maximum bacterial reduction of Staphylococcus aureus and Escherichia coli, although they exhibited low antioxidant activity. The results suggest that the films could be effectively utilized as antibacterial wound dressings.
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Affiliation(s)
- Matea Korica
- Innovation Center of Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000, Belgrade, Serbia.
| | - Katarina Mihajlovski
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000, Belgrade, Serbia.
| | - Tamilselvan Mohan
- Institute for Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010, Graz, Austria; Laboratory for Characterisation and Processing of Polymers, Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica17, 2000, Maribor, Slovenia.
| | - Mirjana Kostić
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000, Belgrade, Serbia.
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High-Pressure Water Jet System Treatment of Argan Nut Shell and Enzymatic Hydrolysis for Bioethanol Production. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8110627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Argan nut shell represents the most generated by-product during the process of the extraction of argan oil. For the first time, argan nut shell was characterized and assessed as a new potential feedstock for bioethanol production using a combination of mechanical and enzymatic pretreatment. Argan shell samples were first disintegrated using the Star Burst system, which involves a high-pressure water jet system. Then, the pretreated argan nut shell was subjected to enzymatic hydrolysis using Viscozyme L (30 FBGU/g). Afterwards, the fermentation of the hydrolysate by Saccharomyces cerevisiae was investigated. Argan nut shell, as a feedstock plentiful in carbohydrates, conferred a high yield of saccharification (90%) and an optimal ethanol bioconversion (45.25%) using Viscozyme L (30 FBGU/g) at 2%w/v of argan feedstock.
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Ogura K, Brasselet C, Cabrera-Barjas G, Hamidi M, Shavandi A, Dols-Lafargue M, Sawamura N, Delattre C. Production of Fungal Nanochitosan Using High-Pressure Water Jet System for Biomedical Applications. MATERIALS 2022; 15:ma15041375. [PMID: 35207915 PMCID: PMC8876192 DOI: 10.3390/ma15041375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 01/30/2022] [Accepted: 02/08/2022] [Indexed: 02/04/2023]
Abstract
In this present work, fungal nanochitosans, with very interesting particle size distribution of 22 µm, were efficiently generated in high-yield production using a high-pressure water jet system (Star Burst System, Sugino, Japan) after 10 passes of mechanical treatment under high pressure. The specific characterization of fungal chitosan nanofibers suspensions in water revealed a high viscosity of 1450 mPa.s and an estimated transparency of 43.5% after 10 passes of fibrillation mechanical treatment. The mechanical characterization of fungal nanochitosan (NC) film are very interesting for medical applications with a Young’s modulus (E), a tensile strength (TS), and elongation at break (e%) estimated at 2950 MPa, 50.5 MPa, and 5.5%, respectively. Furthermore, we exhibited that the fungal nanochitosan (NC) film presented very good long-term antioxidant effect (reached 82.4% after 96 h of contact with DPPH radical solution) and very interesting antimicrobial activity when the nanochitosan (NC) fibers are mainly activated as NC-NH3+ form at the surface of the film with 45% reduction and 75% reduction observed for S. aureus (Gram-positive) and E. coli (Gram-negative), respectively, after 6 h of treatment. These promising antimicrobial and antioxidant activities indicated the high potential of valorization toward biomedical applications.
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Affiliation(s)
- Kota Ogura
- Sugino Machine Limited, 2410 Hongo, Uozu, Toyama 937-8511, Japan; (K.O.); (N.S.)
| | - Clément Brasselet
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, 63000 Clermont-Ferrand, France;
| | - Gustavo Cabrera-Barjas
- Unidad de Desarrollo Tecnológico, Parque Industrial Coronel, Universidad de Concepción, Concepción 3349001, Chile;
| | - Masoud Hamidi
- BioMatter Unit, École Polytechnique de Bruxelles, Université Libre de Bruxelles (ULB), Avenue F.D. Roosevelt, 50-CP 165/61, 1050 Brussels, Belgium; (M.H.); (A.S.)
- Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht 44771-66595, Iran
| | - Amin Shavandi
- BioMatter Unit, École Polytechnique de Bruxelles, Université Libre de Bruxelles (ULB), Avenue F.D. Roosevelt, 50-CP 165/61, 1050 Brussels, Belgium; (M.H.); (A.S.)
| | - Marguerite Dols-Lafargue
- EA 4577 Œnologie, INRA, USC 1366, ISVV, Bordeaux INP, Université de Bordeaux, 33000 Bordeaux, France;
| | - Naoki Sawamura
- Sugino Machine Limited, 2410 Hongo, Uozu, Toyama 937-8511, Japan; (K.O.); (N.S.)
| | - Cédric Delattre
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, 63000 Clermont-Ferrand, France;
- Institut Universitaire de France (IUF), 1 Rue Descartes, 75005 Paris, France
- Correspondence:
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Kumamoto K, Maeda T, Hayakawa S, Mustapha NAB, Wang MJ, Shirosaki Y. Antibacterial Chitosan Nanofiber Thin Films with Bacitracin Zinc Salt. Polymers (Basel) 2021; 13:polym13071104. [PMID: 33808445 PMCID: PMC8036362 DOI: 10.3390/polym13071104] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 03/26/2021] [Accepted: 03/27/2021] [Indexed: 11/29/2022] Open
Abstract
Chitosan nanofiber has a highly uniform structure of 20–50 nm in diameter and shows high dispersibility in water due to its submicron size and high surface-to-volume ratio. The stacked nanofibers film is useful for breathability because it has a gap with a size of several tens of nm or more. However, the chemical bonds between the nanofibers cannot be broken during use. In this study, the thin films were obtained by filtration of chitosan nanofibers and 3-glycidoxypropyltrimethoxysilane (GPTMS) mixture. The addition of GPTMS changed the wettability, mechanical property and stability in water of the thin films. Bacitracin zinc salt (BZ) has been used for the localized dermatological medicines and loaded in the films. BZ interacted electrostatically with the thin films matrix and the release of BZ was controlled by the amount of GPTMS. A higher released amount of BZ showed higher antibacterial effects toward S. aureus. The film was also tested their toxicity by L929 fibroblasts. The release of less than 11.9 μg of BZ showed antibacterial effects, but were not toxic for fibroblast cells.
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Affiliation(s)
- Kazutaka Kumamoto
- Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Kitakyushu, Fukuoka 804-8550, Japan;
| | - Toshinari Maeda
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan; (T.M.); (N.A.B.M.)
| | - Satoshi Hayakawa
- Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan;
| | - Nurul Asyifah Binti Mustapha
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan; (T.M.); (N.A.B.M.)
| | - Meng-Jiy Wang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei 106, Taiwan;
| | - Yuki Shirosaki
- Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Kitakyushu, Fukuoka 804-8550, Japan;
- Correspondence: ; Tel.: +81-8030581529
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Zhang S, Zhao G, Wang J, Xie C, Liang W, Chen K, Wen Y, Li X. Organic Solvent-Free Preparation of Chitosan Nanofibers with High Specific Surface Charge and Their Application in Biomaterials. ACS APPLIED MATERIALS & INTERFACES 2021; 13:12347-12358. [PMID: 33625203 DOI: 10.1021/acsami.0c21796] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The application of chitosan nanofibers in biological tissue-engineering materials has attracted wide attention. A novel and organic solvent-free method was developed for the fabrication of rootlike chitosan nanofibers (CSNFs) with diameters of 40-250 nm. This method includes three-step mechanical processing of swelling-beating-centrifugation or swelling-beating-homogenization. The obtained nanofibers showed high yields (>95%) and positive specific surface charges (up to +375 μeq/g) and could be uniformly dispersed in the aqueous phase. The unique fiber shape and the good length-to-diameter ratio of CSNFs endowed chitosan nanofiber paper (CSNFP) products with excellent mechanical properties, and the wet tensile strength of the CSNFPs was nearly five times higher than common chitosan films. In addition, the calvaria-derived preosteoblastic cells exhibited a higher adherence efficiency and proliferation on CSNFP than on chitosan films. The chitosan nanofiber scaffold products also benefited the attachment of preosteoblastic cells and allowed them to grow in three dimensions. This method has significant industrial potential for the industrialization of chitosan nanofibers, which may have broad applications in various biomaterials.
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Affiliation(s)
- Sihan Zhang
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Guanglei Zhao
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Jiming Wang
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Chong Xie
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wenquan Liang
- Department of Spine Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510500, China
| | - Kebing Chen
- Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Disease, The Third Affiliated Hospital of Southern Medical University, the Third School of Clinical Medicine, Southern Medical University, Academy of Orthopedics of Guangdong Province, Guangzhou 510630, China
| | - Ying Wen
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Xiaofeng Li
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510644, China
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Saito Y, Iwamoto S, Tanaka Y, Hontama N, Endo T. Suppressing aggregation of quinacridone pigment and improving its color strength by using chitosan nanofibers. Carbohydr Polym 2021; 255:117365. [PMID: 33436198 DOI: 10.1016/j.carbpol.2020.117365] [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: 08/13/2020] [Revised: 10/24/2020] [Accepted: 11/01/2020] [Indexed: 11/24/2022]
Abstract
Quinacridone, a red pigment, is prone to aggregation, which results in undesirable color changes. Cellulose nanofibers (NFs) have been reported to adsorb quinacridone and suppress its aggregation. In this study, we investigated the potential of chitin and chitosan NFs which possess acetoamide and amino groups, as a quinacridone dispersant. Chitosan NFs, obtained by fibrillation using high-pressure homogenizer, adsorbed more quinacridone than cellulose NFs. SEM observations showed that chitosan NFs inhibited the aggregation of quinacridone, but chitin NFs did not. NMR analysis suggested the hydrogen bonding between chitosan NFs and quinacridone induced by the amino groups. The results indicated that the amino groups more facilitated the intermolecular interactions between NFs and quinacridone than the hydroxyl groups whereas the acetamide groups hindered them. Color measurements showed that the redness of quinacridone improved when cellulose or chitosan NFs were added. Chitosan NFs were found to be a novel candidate for quinacridone dispersants.
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Affiliation(s)
- Yasuko Saito
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Hiroshima, 739-0046, Japan.
| | - Shinichiro Iwamoto
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Hiroshima, 739-0046, Japan.
| | - Yuki Tanaka
- Sanyo Color Works, Ltd., Hyogo, 670-0966, Japan.
| | | | - Takashi Endo
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Hiroshima, 739-0046, Japan.
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7
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Arai Y, Nishinari K, Nagano T. Developing Soybean Protein Gel-Based Foods from Okara Using the Wet-Type Grinder Method. Foods 2021; 10:348. [PMID: 33562101 PMCID: PMC7916012 DOI: 10.3390/foods10020348] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/01/2021] [Accepted: 02/01/2021] [Indexed: 11/16/2022] Open
Abstract
Okara, a by-product of tofu or soymilk, is rich in dietary fibers (DFs) that are mostly insoluble. A wet-type grinder (WG) system was used to produce nanocellulose (NC). We hypothesized that the WG system would increase the dispersion performance and viscosity of okara. These properties of WG-treated okara improve the gel-forming ability of soybean proteins. Here, the suspensions of 2 wt% okara were treated with WG for different passages (1, 3, and 5 times). The particle size distribution (PSD) and viscosity of WG-treated okara decreased and increased, respectively, with different passages. The five-time WG-treated okara homogeneously dispersed in water after 24 h, whereas untreated okara did not. The breaking stress, strain, and water holding capacity of soybean protein isolate (SPI) gels increased upon the addition of WG-treated okara. This effect increased as the number of WG treatments increased. The breaking stress and strain of SPI gels to which different concentrations of the five-time WG-treated okara were added also increased with increasing concentrations of WG-treated okara. These results suggest that NC technology can improve the physicochemical properties of okara and are useful in the development of protein gel-based foods.
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Affiliation(s)
- Yuya Arai
- Department of Food Science, Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University, 1-308, Suematsu, Nonoich 921-8836, Japan;
| | - Katsuyoshi Nishinari
- Glyn O. Phillips Hydrocolloids Research Centre, School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China;
| | - Takao Nagano
- Department of Food Science, Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University, 1-308, Suematsu, Nonoich 921-8836, Japan;
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Nagano T, Arai Y, Yano H, Aoki T, Kurihara S, Hirano R, Nishinari K. Improved physicochemical and functional properties of okara, a soybean residue, by nanocellulose technologies for food development – A review. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105964] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Chitosan Nanofiber and Cellulose Nanofiber Blended Composite Applicable for Active Food Packaging. NANOMATERIALS 2020; 10:nano10091752. [PMID: 32899841 PMCID: PMC7557881 DOI: 10.3390/nano10091752] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 11/16/2022]
Abstract
This paper reports that, by simply blending two heterogeneous polysaccharide nanofibers, namely chitosan nanofiber (ChNF) and cellulose nanofiber (CNF), a ChNF–CNF composite was prepared, which exhibited improved mechanical properties and antioxidant activity. ChNF was isolated using the aqueous counter collision (ACC) method, while CNF was isolated using the combination of TEMPO oxidation and the ACC method, which resulted in smaller size of CNF than that of ChNF. The prepared composite was characterized in terms of morphologies, FT-IR, UV visible, thermal stability, mechanical properties, hygroscopic behaviors, and antioxidant activity. The composite was flexible enough to be bent without cracking. Better UV-light protection was shown at higher content of ChNF in the composite. The high ChNF content showed the highest antioxidant activity in the composite. It is the first time that a simple combination of ChNF–CNF composites fabrication showed good mechanical properties and antioxidant activities. In this study, the reinforcement effect of the composite was addressed. The ChNF–CNF composite is promising for active food packaging application.
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Effects of surface-deacetylated chitin nanofibers on non-alcoholic steatohepatitis model rats and their gut microbiota. Int J Biol Macromol 2020; 164:659-666. [PMID: 32698063 DOI: 10.1016/j.ijbiomac.2020.07.184] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/01/2020] [Accepted: 07/16/2020] [Indexed: 01/21/2023]
Abstract
Nonalcoholic steatohepatitis (NASH), a more advanced form of nonalcoholic fatty liver disease (NAFLD), is associated with increased cardiovascular and liver-related mortality. Stroke-prone spontaneously hypertensive rats (SHRSP5/Dmcr) that are fed a high-fat and high-cholesterol diet develop hepatic lesions that are similar to those observed in human NASH pathology. We investigated the hepatic protective and antioxidant effects of surface-deacetylated chitin nanofibers (SDACNFs) that were administered to SHRSP5/Dmcr rats for 8 weeks. The administration of SDACNFs (80 mg/kg/day) resulted in a significant decrease in hepatic injury, oxidative stress, compared with the non-treatment. The SDACNFs also caused a reduction in the population of harmful members of the Morganella and Prevotella genus, and increased the abundance of the Blautia genus, a useful bacterium in gut microbiota. We therefore conclude that SDACNF exerts anti-hepatic and antioxidative effects not only by adsorbing lipid substances but also by reforming the community of intestinal microflora in the intestinal tract.
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Machida J, Suenaga S, Osada M. Effect of the degree of acetylation on the physicochemical properties of α-chitin nanofibers. Int J Biol Macromol 2020; 155:350-357. [DOI: 10.1016/j.ijbiomac.2020.03.213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/19/2020] [Accepted: 03/22/2020] [Indexed: 12/26/2022]
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12
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Nagano T, Hirano R, Kurihara S, Nishinari K. Improved effects of okara atomized by a water jet system on α-amylase inhibition and butyrate production by Roseburia intestinalis. Biosci Biotechnol Biochem 2020; 84:1467-1474. [PMID: 32180503 DOI: 10.1080/09168451.2020.1741337] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/07/2020] [Indexed: 01/04/2023]
Abstract
Improving the physicochemical properties of okara for various applications in foods is of great importance. Here, okara and microcrystalline cellulose (MCC) were atomized using a water jet (WJ) system. The WJ-treated okara and MCC dispersed homogeneously in water, and their median sizes in particle size distribution were 6.6 μm and 9.5 μm, respectively. The dispersions of WJ-treated okara and MCC showed high apparent viscosity and shear thinning behavior. Moreover, the inhibition of α-amylase activities by WJ-treated okara was more effective than that by untreated MCC and cellulose. Furthermore, the production of short-chain fatty acids by 32 dominant species of human gut microbes was determined. An increase in butyrate production by Roseburia intestinalis was observed in the presence of WJ-treated okara, but not in untreated okara or WJ-treated MCC. These results demonstrate that WJ system can be used on okara to increase inhibited α-amylase activities and butyrate production by gut microbiota.
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Affiliation(s)
- Takao Nagano
- Department of Food Science, Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University , Nonoich, Japan
| | - Rika Hirano
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University , Nonoich, Japan
| | - Shin Kurihara
- Faculty of Biology-Oriented Science and Technology, Kinki University , Wakayama, Japan
| | - Katsuyoshi Nishinari
- Glyn O. Phillips Hydrocolloids Research Centre, School of Food and Biological Engineering, Hubei University of Technology , Wuhan, P. R. China
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14
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Aranday-García R, Saimoto H, Shirai K, Ifuku S. Chitin biological extraction from shrimp wastes and its fibrillation for elastic nanofiber sheets preparation. Carbohydr Polym 2019; 213:112-120. [DOI: 10.1016/j.carbpol.2019.02.083] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 12/15/2018] [Accepted: 02/25/2019] [Indexed: 11/17/2022]
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15
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Nitta S, Komatsu A, Ishii T, Ohnishi M, Inoue A, Iwamoto H. Fabrication and characterization of water-dispersed chitosan nanofiber/poly(ethylene glycol) diacrylate/calcium phosphate-based porous composites. Carbohydr Polym 2017; 174:1034-1040. [DOI: 10.1016/j.carbpol.2017.06.111] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 06/12/2017] [Accepted: 06/27/2017] [Indexed: 11/25/2022]
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16
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Suzuki S, Ono M, Toda T, Kitamura S. Preparation and Intestinal Immunostimulating Activity of Low Molecular Weight Alginate from Saccharina ( Laminaria) Species in Japan. J Appl Glycosci (1999) 2016; 63:1-5. [PMID: 34354474 PMCID: PMC8114153 DOI: 10.5458/jag.jag.jag-2015_017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 09/03/2015] [Indexed: 10/27/2022] Open
Abstract
We studied the structure of alginates extracted from five commercial Saccharina (Laminaria) species including three varieties (eight samples in all) harvested in Hokkaido, Japan. The algae used were Saccharina japonica, S. japonica var. diabolica, S. japonica var. ochotensis, S. japonica var. religiosa, S. longissima, S. coriacea, S. angustata, and S. sculpera (Kjellmaniella crassiforia). These alginates have molar fractions of mannuronic acid (F M) ranging from 0.68 to 0.76 and weight average molecular weights (M ws) ranging from 511,000 to 616,000. Alginate samples from both S. angustata (F M = 0.76) and S. longissima (F M = 0.68) showed intestinal immunological activity through Peyer's patch cells of C3H/HeJ mice. Low molecular weight S. angustata alginate (F M = 0.75, M w = 70,000) degraded using a wet pulverizing system showed higher activity than the native one.
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Affiliation(s)
- Shiho Suzuki
- 1 Graduate School of Life and Environmental Sciences, Osaka Prefecture University.,2 International Polysaccharide Engineering (IPE) Inc. (Center for R&D of Bioresources, Osaka Prefecture University)
| | - Mariko Ono
- 1 Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | | | - Shinichi Kitamura
- 1 Graduate School of Life and Environmental Sciences, Osaka Prefecture University
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Tanaka H, Egusa M, Takemura Y, Iwata Y, Nagae T, Ifuku S, Kaminaka H. Improvement of Bread-Making Quality by Chitin-Nanofibers Added to Wheat Flour. J JPN SOC FOOD SCI 2016. [DOI: 10.3136/nskkk.63.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - Mayumi Egusa
- Graduate School of Engineering, Tottori University
| | | | - Yukari Iwata
- Graduate School of Agriculture, Tottori University
| | - Tomone Nagae
- Graduate School of Engineering, Tottori University
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18
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Egusa M, Iwamoto R, Izawa H, Morimoto M, Saimoto H, Kaminaka H, Ifuku S. Characterization of Chitosan Nanofiber Sheets for Antifungal Application. Int J Mol Sci 2015; 16:26202-10. [PMID: 26540046 PMCID: PMC4661806 DOI: 10.3390/ijms161125947] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 10/23/2015] [Accepted: 10/26/2015] [Indexed: 11/16/2022] Open
Abstract
Chitosan produced by the deacetylation of chitin is a cationic polymer with antimicrobial properties. In this study, we demonstrate the improvement of chitosan properties by nanofibrillation. Nanofiber sheets were prepared from nanofibrillated chitosan under neutral conditions. The Young's modulus and tensile strength of the chitosan NF sheets were higher than those of the chitosan sheets prepared from dissolving chitosan in acetic acid. The chitosan NF sheets showed strong mycelial growth inhibition against dermatophytes Microsporum and Trichophyton. Moreover, the chitosan NF sheets exhibited resistance to degradation by the fungi, suggesting potentials long-lasting usage. In addition, surface-deacetylated chitin nanofiber (SDCNF) sheets were prepared. The SDCNF sheet had a high Young's modulus and tensile strength and showed antifungal activity to dermatophytes. These data indicate that nanofibrillation improved the properties of chitosan. Thus, chitosan NF and SDCNF sheets are useful candidates for antimicrobial materials.
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Affiliation(s)
- Mayumi Egusa
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8552, Japan.
- Faculty of Agriculture, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8553, Japan.
| | - Ryo Iwamoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8552, Japan.
| | - Hironori Izawa
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8552, Japan.
| | - Minoru Morimoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8552, Japan.
| | - Hiroyuki Saimoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8552, Japan.
| | - Hironori Kaminaka
- Faculty of Agriculture, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8553, Japan.
| | - Shinsuke Ifuku
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8552, Japan.
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19
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Development of chitosan-nanofiber-based hydrogels exhibiting high mechanical strength and pH-responsive controlled release. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.03.053] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Izumi R, Komada S, Ochi K, Karasawa L, Osaki T, Murahata Y, Tsuka T, Imagawa T, Itoh N, Okamoto Y, Izawa H, Morimoto M, Saimoto H, Azuma K, Ifuku S. Favorable effects of superficially deacetylated chitin nanofibrils on the wound healing process. Carbohydr Polym 2015; 123:461-7. [DOI: 10.1016/j.carbpol.2015.02.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 02/02/2015] [Accepted: 02/03/2015] [Indexed: 10/24/2022]
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21
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Chitosan nanofibers fabricated by combined ultrasonic atomization and freeze casting. Carbohydr Polym 2015; 122:18-25. [DOI: 10.1016/j.carbpol.2014.12.080] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/28/2014] [Accepted: 12/29/2014] [Indexed: 11/22/2022]
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22
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Preparation of chitosan nanofibers from completely deacetylated chitosan powder by a downsizing process. Int J Biol Macromol 2015; 72:1191-5. [DOI: 10.1016/j.ijbiomac.2014.10.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 10/21/2014] [Accepted: 10/21/2014] [Indexed: 11/21/2022]
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23
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Nguyen VQ, Ishihara M, Kinoda J, Hattori H, Nakamura S, Ono T, Miyahira Y, Matsui T. Development of antimicrobial biomaterials produced from chitin-nanofiber sheet/silver nanoparticle composites. J Nanobiotechnology 2014; 12:49. [PMID: 25467525 PMCID: PMC4263038 DOI: 10.1186/s12951-014-0049-1] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 11/04/2014] [Indexed: 12/01/2022] Open
Abstract
Background Chitin nanofibers sheets (CNFSs) with nanoscale fiber-like surface structures are nontoxic and biodegradable biomaterials with large surface-to-mass ratio. CNFSs are widely applied as biomedical materials such as a functional wound dressing. This study aimed to develop antimicrobial biomaterials made up of CNFS-immobilized silver nanoparticles (CNFS/Ag NPs). Materials and methods CNFSs were immersed in suspensions of Ag NPs (5.17 ± 1.9 nm in diameter; mean ± SD) for 30 min at room temperature to produce CNFS/Ag NPs. CNFS/Ag NPs were characterized by transmission electron microscopy (TEM) and then tested for antimicrobial activities against Escherichia (E.) coli, Pseudomonas (P.) aeruginosa, and H1N1 influenza A virus, three pathogens that represent the most widespread infectious bacteria and viruses. Ultrathin sectioning of bacterial cells also was carried out to observe the bactericidal mechanism of Ag NPs. Results The TEM images indicated that the Ag NPs are dispersed and tightly adsorbed onto CNFSs. Although CNFSs alone have only weak antimicrobial activity, CNFS/Ag NPs showed much stronger antimicrobial properties against E. coli, P. aeruginosa, and influenza A virus, with the amount of immobilized Ag NPs onto CNFSs. Conclusions Our results suggest that CNFS/Ag NPs interacting with those microbes exhibit stronger antimicrobial activities, and that it is possible to apply CNFS/Ag NPs as anti-virus sheets as well as anti-infectious wound dressings.
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Affiliation(s)
- Vinh Quang Nguyen
- Faculty of System Design, Tokyo Metropolitan University, 6-6 Asahigaoka, Hino, Tokyo, 191-0065, Japan. .,Research Institute, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama, 359-1324, Japan.
| | - Masayuki Ishihara
- Research Institute, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama, 359-1324, Japan.
| | - Jun Kinoda
- Department of Oral and Maxillofacial Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama, 359-8513, Japan.
| | - Hidemi Hattori
- Research Institute, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama, 359-1324, Japan.
| | - Shingo Nakamura
- Research Institute, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama, 359-1324, Japan.
| | - Takeshi Ono
- Department of Global Infectious Diseases and Tropical Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama, 359-8513, Japan.
| | - Yasushi Miyahira
- Department of Global Infectious Diseases and Tropical Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama, 359-8513, Japan.
| | - Takemi Matsui
- Faculty of System Design, Tokyo Metropolitan University, 6-6 Asahigaoka, Hino, Tokyo, 191-0065, Japan.
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24
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Ifuku S. Chitin and chitosan nanofibers: preparation and chemical modifications. Molecules 2014; 19:18367-80. [PMID: 25393598 PMCID: PMC6271128 DOI: 10.3390/molecules191118367] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 10/15/2014] [Accepted: 11/04/2014] [Indexed: 01/20/2023] Open
Abstract
Chitin nanofibers are prepared from the exoskeletons of crabs and prawns, squid pens and mushrooms by a simple mechanical treatment after a series of purification steps. The nanofibers have fine nanofiber networks with a uniform width of approximately 10 nm. The method used for chitin-nanofiber isolation is also successfully applied to the cell walls of mushrooms. Commercial chitin and chitosan powders are also easily converted into nanofibers by mechanical treatment, since these powders consist of nanofiber aggregates. Grinders and high-pressure waterjet systems are effective for disintegrating chitin into nanofibers. Acidic conditions are the key factor to facilitate mechanical fibrillation. Surface modification is an effective way to change the surface property and to endow nanofiber surface with other properties. Several modifications to the chitin NF surface are achieved, including acetylation, deacetylation, phthaloylation, naphthaloylation, maleylation, chlorination, TEMPO-mediated oxidation, and graft polymerization. Those derivatives and their properties are characterized.
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Affiliation(s)
- Shinsuke Ifuku
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8550, Japan.
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El Ichi S, Zebda A, Laaroussi A, Reverdy-Bruas N, Chaussy D, Naceur Belgacem M, Cinquin P, Martin DK. Chitosan improves stability of carbon nanotube biocathodes for glucose biofuel cells. Chem Commun (Camb) 2014; 50:14535-8. [DOI: 10.1039/c4cc04862h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrate a novel combined chitosan–carbon-nanotube–enzyme biocathode with a fibrous microstructure that improves the performance by creating a protective microenvironment, preventing the loss of the electrocatalytic activity of the enzyme, and providing good oxygen diffusion.
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Affiliation(s)
- Sarra El Ichi
- University of Grenoble Alpes/CNRS/INSERM/TIMC-IMAG UMR 5525 (Equipe SyNaBi)
- Grenoble, France
| | - Abdelkader Zebda
- University of Grenoble Alpes/CNRS/INSERM/TIMC-IMAG UMR 5525 (Equipe SyNaBi)
- Grenoble, France
| | | | | | | | | | - Philippe Cinquin
- University of Grenoble Alpes/CNRS/INSERM/TIMC-IMAG UMR 5525 (Equipe SyNaBi)
- Grenoble, France
| | - Donald K. Martin
- University of Grenoble Alpes/CNRS/INSERM/TIMC-IMAG UMR 5525 (Equipe SyNaBi)
- Grenoble, France
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