251
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Lu Z, Zhang Y, Chi Y, Xu N, Yao W, Sun B. Effects of alcohols on bacterial cellulose production by Acetobacter xylinum 186. World J Microbiol Biotechnol 2011. [DOI: 10.1007/s11274-011-0692-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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252
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Rani MU, Appaiah A. Optimization of culture conditions for bacterial cellulose production from Gluconacetobacter hansenii UAC09. ANN MICROBIOL 2011. [DOI: 10.1007/s13213-011-0196-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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253
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Quero F, Nogi M, Lee KY, Vanden Poel G, Bismarck A, Mantalaris A, Yano H, Eichhorn SJ. Cross-linked bacterial cellulose networks using glyoxalization. ACS APPLIED MATERIALS & INTERFACES 2011; 3:490-9. [PMID: 21186815 DOI: 10.1021/am101065p] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
In this study, we demonstrate that bacterial cellulose (BC) networks can be cross-linked via glyoxalization. The fracture surfaces of samples show that, in the dry state, less delamination occurs for glyoxalized BC networks compared to unmodified BC networks, suggesting that covalent bond coupling between BC layers occurs during the glyoxalization process. Young's moduli of dry unmodified BC networks do not change significantly after glyoxalization. The stress and strain at failure are, however, reduced after glyoxalization. However, the wet mechanical properties of the BC networks are improved by glyoxalization. Raman spectroscopy is used to demonstrate that the stress-transfer efficiency of deformed dry and wet glyoxalized BC networks is significantly increased compared to unmodified material. This enhanced stress-transfer within the networks is shown to be a consequence of the covalent coupling induced during glyoxalization and offers a facile route for enhancing the mechanical properties of BC networks for a variety of applications.
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Affiliation(s)
- Franck Quero
- Materials Science Centre, School of Materials, University of Manchester, Grosvenor Street, Manchester M13 9PL, United Kingdom
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254
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Castro C, Zuluaga R, Putaux JL, Caro G, Mondragon I, Gañán P. Structural characterization of bacterial cellulose produced by Gluconacetobacter swingsii sp. from Colombian agroindustrial wastes. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.10.072] [Citation(s) in RCA: 262] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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255
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Zhijiang C, Guang Y. Bacterial cellulose/collagen composite: Characterization and first evaluation of cytocompatibility. J Appl Polym Sci 2011. [DOI: 10.1002/app.33318] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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256
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Rani MU, Udayasankar K, Appaiah KAA. Properties of bacterial cellulose produced in grape medium by native isolate Gluconacetobacter sp. J Appl Polym Sci 2011. [DOI: 10.1002/app.33307] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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257
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Huang HC, Chen LC, Lin SB, Chen HH. Nano-biomaterials application: In situ modification of bacterial cellulose structure by adding HPMC during fermentation. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.09.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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258
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Fink H, Ahrenstedt L, Bodin A, Brumer H, Gatenholm P, Krettek A, Risberg B. Bacterial cellulose modified with xyloglucan bearing the adhesion peptide RGD promotes endothelial cell adhesion and metabolism-a promising modification for vascular grafts. J Tissue Eng Regen Med 2010; 5:454-63. [DOI: 10.1002/term.334] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Accepted: 05/13/2010] [Indexed: 11/10/2022]
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259
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Comparative evaluation of bacterial cellulose (nata) as a cryoprotectant and carrier support during the freeze drying process of probiotic lactic acid bacteria. Lebensm Wiss Technol 2010. [DOI: 10.1016/j.lwt.2010.03.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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260
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Wiegand C, Hipler UC. Polymer-based Biomaterials as Dressings for Chronic Stagnating Wounds. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/masy.200900028] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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261
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262
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Wippermann J. Gefäße aus Papier? ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2010. [DOI: 10.1007/s00398-010-0797-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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263
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Cai Z, Kim J. Preparation and Characterization of Novel Bacterial Cellulose/Gelatin Scaffold for Tissue Regeneration Using Bacterial Cellulose Hydrogel. J Nanotechnol Eng Med 2010. [DOI: 10.1115/1.4000858] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Bacterial cellulose (BC) and gelatin are well-known biomaterials. The novel bacterial cellulose/gelatin composite scaffolds were prepared using aqueous gelatin solution and bacterial cellulose excreted by Acetobacter xylinum. The prepared bacterial cellulose/gelatin scaffolds were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, mechanical test, swelling, and thermal studies. The morphology of these bacterial cellulose/gelatin scaffolds indicated that the gelatin molecules could penetrate well between the individual nanofibers of the bacterial cellulose. With the incorporation of gelatin in the bacterial cellulose, the crystallinity index tended to decrease while the thermal stability was improved. After the incorporation of gelatin in the bacterial cellulose, Young’s modulus of the composite was increased from 3.7 GPa to 3.9 GPa, while the tensile strength and strain at break point were decreased from 170 MPa (7.5%) to 114 MPa (4%), respectively. The swelling behavior test indicated that the water uptake capacity of the composite was only half of the pure bacterial cellulose. Cell adhesion studies were carried out using 3T3 fibroblast cells. The cells incubated with BC/gelatin scaffolds for 48 h were capable of forming cell adhesion and proliferation. It showed much better biocompatibility than pure bacterial cellulose. So, the prepared BC/gelatin scaffolds are bioactive and may be suitable for cell adhesion/attachment, suggesting that these scaffolds can be used for wound dressing or tissue engineering scaffolds. Therefore, these novel BC/gelatin scaffolds are useful for biomedical applications.
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Affiliation(s)
- Zhijiang Cai
- Department of Mechanical Engineering, Center for EAPap Actuator, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon 402-751, South Korea
| | - Jaehwan Kim
- Department of Mechanical Engineering, Center for EAPap Actuator, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon 402-751, South Korea
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264
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265
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Shah N, Ha JH, Park JK. Effect of reactor surface on production of bacterial cellulose and water soluble oligosaccharides by Gluconacetobacter hansenii PJK. BIOTECHNOL BIOPROC E 2010. [DOI: 10.1007/s12257-009-3064-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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266
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Jang SY, Sin KA, Jeong YJ. Quality Characteristics of Apple Vinegar by Agitated and Static Cultures. ACTA ACUST UNITED AC 2010. [DOI: 10.3746/jkfn.2010.39.2.308] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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267
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Donini ÍAN, Salvi DTBD, Fukumoto FK, Lustri WR, Barud HS, Marchetto R, Messaddeq Y, Ribeiro SJL. Biossíntese e recentes avanços na produção de celulose bacteriana. ECLÉTICA QUÍMICA 2010. [DOI: 10.1590/s0100-46702010000400021] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
O presente trabalho discute os recentes avanços na biossíntese e na produção de celulose bacteriana (CB) pela gram-negativa, aeróbia e aceto-ácida Gluconacetobacter. xylinus. A CB se difere de seu par vegetal, principalmente devido ao seu caráter de fibras nanométricas, contra o caráter micrométrico da vegetal, são extruídas através da parede celular de G. xylinus, com isso sua estrutura macroscópica é mecanicamente e fisicamente mais resistente, abrindo grandes oportunidades de aplicações tecnológicas e biológicas, muito além das obtidas pela celulose vegetal. O desafio atual está no aumento da produção de CB, que se debruça num maior entendimento de sua biossíntese para que seja possível uma posterior manipulação genético-bioquímica oriundas do recente avanço na biologia molecular e nos bioprocessos. São relacionados trabalhos utilizando a CB como base para produção de compósitos como também o que a está sendo feito de mais atual com este material biológico.
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Affiliation(s)
| | | | - Fabiana K. Fukumoto
- Universidade Estadual Paulista, Brasil; Universidade Estadual Paulista, Brasil
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268
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Chen S, Shen W, Yu F, Hu W, Wang H. Preparation of amidoximated bacterial cellulose and its adsorption mechanism for Cu2+and Pb2+. J Appl Polym Sci 2010. [DOI: 10.1002/app.31477] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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269
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Basta A, El-Saied H. Performance of improved bacterial cellulose application in the production of functional paper. J Appl Microbiol 2009; 107:2098-107. [DOI: 10.1111/j.1365-2672.2009.04467.x] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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270
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Moreira S, Silva NB, Almeida-Lima J, Rocha HAO, Medeiros SRB, Alves C, Gama FM. BC nanofibres: In vitro study of genotoxicity and cell proliferation. Toxicol Lett 2009; 189:235-41. [DOI: 10.1016/j.toxlet.2009.06.849] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2009] [Revised: 05/31/2009] [Accepted: 06/04/2009] [Indexed: 10/20/2022]
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271
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Tang W, Jia S, Jia Y, Yang H. The influence of fermentation conditions and post-treatment methods on porosity of bacterial cellulose membrane. World J Microbiol Biotechnol 2009. [DOI: 10.1007/s11274-009-0151-y] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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272
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Vu B, Chen M, Crawford RJ, Ivanova EP. Bacterial extracellular polysaccharides involved in biofilm formation. Molecules 2009; 14:2535-54. [PMID: 19633622 PMCID: PMC6254922 DOI: 10.3390/molecules14072535] [Citation(s) in RCA: 591] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2009] [Revised: 06/26/2009] [Accepted: 07/01/2009] [Indexed: 12/19/2022] Open
Abstract
Extracellular polymeric substances (EPS) produced by microorganisms are a complex mixture of biopolymers primarily consisting of polysaccharides, as well as proteins, nucleic acids, lipids and humic substances. EPS make up the intercellular space of microbial aggregates and form the structure and architecture of the biofilm matrix. The key functions of EPS comprise the mediation of the initial attachment of cells to different substrata and protection against environmental stress and dehydration. The aim of this review is to present a summary of the current status of the research into the role of EPS in bacterial attachment followed by biofilm formation. The latter has a profound impact on an array of biomedical, biotechnology and industrial fields including pharmaceutical and surgical applications, food engineering, bioremediation and biohydrometallurgy. The diverse structural variations of EPS produced by bacteria of different taxonomic lineages, together with examples of biotechnological applications, are discussed. Finally, a range of novel techniques that can be used in studies involving biofilm-specific polysaccharides is discussed.
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Affiliation(s)
- Barbara Vu
- Faculty of Life and Social Sciences Swinburne University of Technology, PO Box 218, Hawthorn, Victoria 3122, Australia
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273
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Goelzer F, Faria-Tischer P, Vitorino J, Sierakowski MR, Tischer C. Production and characterization of nanospheres of bacterial cellulose from Acetobacter xylinum from processed rice bark. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2008.10.013] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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274
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Chen S, Zou Y, Yan Z, Shen W, Shi S, Zhang X, Wang H. Carboxymethylated-bacterial cellulose for copper and lead ion removal. JOURNAL OF HAZARDOUS MATERIALS 2009; 161:1355-1359. [PMID: 18538922 DOI: 10.1016/j.jhazmat.2008.04.098] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Revised: 04/02/2008] [Accepted: 04/24/2008] [Indexed: 05/26/2023]
Abstract
Carboxymethylated-bacterial cellulose (CM-BC) was synthesized by Acetobacter xylinum by adding water-soluble carboxymethylated cellulose (CMC) in the culture medium. The CM-BC was examined for the removal of copper and lead ions from aqueous solution compared with BC. The effects of performance parameters such as pH, adsorbent dose, contact time on copper and lead ion adsorption were analyzed. Both BC and CM-BC show good adsorption performance at optimized pH 4.5. Compared with BC, CM-BC performs better adsorption, with the value of 9.67 mg (copper)/g, 22.56 mg (lead)/g for BC and 12.63 mg (copper)/g, 60.42 mg (lead)/g for CM-BC, respectively. The adsorption rate closely follows pseudo-second-order rate model and the adsorption isotherm data well follows the Langmuir model.
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Affiliation(s)
- Shiyan Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, 201620, PR China
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275
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Setyawati MI, Chien LJ, Lee CK. Self-immobilized recombinant Acetobacter xylinum for biotransformation. Biochem Eng J 2009. [DOI: 10.1016/j.bej.2008.09.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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276
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Pourrameza G, Roayaei A, Qezelbash Q. Optimization of Culture Conditions for Bacterial Cellulose Production by Acetobacter sp. 4B-2. ACTA ACUST UNITED AC 2008. [DOI: 10.3923/biotech.2009.150.154] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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277
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Wang Y, Luo Q, Peng B, Pei C. A novel thermotropic liquid crystalline – Benzoylated bacterial cellulose. Carbohydr Polym 2008. [DOI: 10.1016/j.carbpol.2008.05.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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278
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279
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Rezaee A, Derayat J, Godini H, Pourtaghi G. Adsorption of Mercury from Synthetic Solutions by an Acetobacter xylinum Biofilm. ACTA ACUST UNITED AC 2008. [DOI: 10.3923/rjes.2008.401.407] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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280
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Template assisted synthesis of porous nanofibrous cellulose membranes for tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2008. [DOI: 10.1016/j.msec.2007.11.011] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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281
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Self-supported silver nanoparticles containing bacterial cellulose membranes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2008. [DOI: 10.1016/j.msec.2007.05.001] [Citation(s) in RCA: 142] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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282
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Nguyen V, Gidley M, Dykes G. Potential of a nisin-containing bacterial cellulose film to inhibit Listeria monocytogenes on processed meats. Food Microbiol 2008; 25:471-8. [DOI: 10.1016/j.fm.2008.01.004] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2007] [Revised: 01/15/2008] [Accepted: 01/16/2008] [Indexed: 10/22/2022]
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283
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Chau CF, Yang P, Yu CM, Yen GC. Investigation on the lipid- and cholesterol-lowering abilities of biocellulose. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:2291-2295. [PMID: 18318496 DOI: 10.1021/jf7035802] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The present study investigated and compared the physicochemical properties as well as the hypolipidemic and hypocholesterolemic effects between plant cellulose and biocellulose. Biocellulose had higher water-holding and cation-exchange capacities than plant cellulose ( approximately 2- and 6-fold, respectively). The results showed that the administration of plant cellulose and biocellulose to hamsters effectively ( P < 0.05) decreased the concentrations of serum triglyceride (by 13.9-55.5%), serum total cholesterol (by 17.4-27.9%), serum low-density lipoprotein cholesterol (by 41.9-47.9%), liver total lipids (by 6.4-10.3%), and liver cholesterol (by 11.8-16.3%). Feeding plant cellulose and biocellulose also enhanced the excretion of total lipids (144-182%), cholesterol (136-203%), and bile acids (259-479%) in feces. The efficacy of biocellulose in lowering serum lipids and cholesterol in hamsters was significantly higher than that of plant cellulose. These results suggested that biocellulose could be a promising low-calorie bulking ingredient for the development of novel fiber-rich functional foods of different forms such as powder, gelatinous, or shred forms.
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Affiliation(s)
- Chi-Fai Chau
- Department of Food Science and Biotechnology, National Chung Hsing University, 250 Kuokuang Road, Taichung 40227, Taiwan
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284
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Oshima T, Kondo K, Ohto K, Inoue K, Baba Y. Preparation of phosphorylated bacterial cellulose as an adsorbent for metal ions. REACT FUNCT POLYM 2008. [DOI: 10.1016/j.reactfunctpolym.2007.07.046] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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285
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Putra A, Kakugo A, Furukawa H, Gong JP, Osada Y, Uemura T, Yamamoto M. Production of Bacterial Cellulose with Well Oriented Fibril on PDMS Substrate. Polym J 2007. [DOI: 10.1295/polymj.pj2007180] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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286
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Functional biopolymers produced by biochemical technology considering applications in food engineering. KOREAN J CHEM ENG 2007. [DOI: 10.1007/s11814-007-0047-1] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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287
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Brown EE, Laborie MPG. Bioengineering Bacterial Cellulose/Poly(ethylene oxide) Nanocomposites. Biomacromolecules 2007; 8:3074-81. [PMID: 17764151 DOI: 10.1021/bm700448x] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
By adding poly(ethylene oxide) (PEO) to the growth medium of Acetobacter xylinum, finely dispersed bacterial cellulose (BC)/PEO nanocomposites were produced in a wide range of compositions and morphologies. As the BC/PEO w/w ratio increased from 15:85 to 59:41, the cellulose nanofibers aggregated in larger bundles, indicating that PEO mixed with the cellulose on the nanometer scale [corrected]. Fourier transform infrared spectroscopy suggested intermolecular hydrogen bonding and also preferred crystallization into cellulose Ibeta in the BC/PEO nanocomposites. The fine dispersion of cellulose nanofibers hindered the crystallization of PEO, lowering its melting point and crystallinity in the nanocomposites although remaining bacterial cell debris also contributed to the melting point depression. The decomposition temperature of PEO also increased by approximately 15 degrees C, and the tensile storage modulus of PEO improved significantly especially above 50 degrees C in the nanocomposites. It is argued that this integrated manufacturing approach to fiber-reinforced thermoplastic nanocomposites affords a good flexibility for tailoring morphology and properties. These results further pose the question of the necessity to remove bacterial cells to achieve desirable materials properties in biologically derived products.
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Affiliation(s)
- Elvie E Brown
- Wood Materials and Engineering Laboratory, Washington State University, Pullman, WA 99164-1806, USA
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288
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Nge TT, Sugiyama J. Surface functional group dependent apatite formation on bacterial cellulose microfibrils network in a simulated body fluid. J Biomed Mater Res A 2007; 81:124-34. [PMID: 17111406 DOI: 10.1002/jbm.a.31020] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The apatite forming ability of biopolymer bacterial cellulose (BC) has been investigated by soaking different BC specimens in a simulated body fluid (1.5 SBF) under physiological conditions, at 37 degrees C and pH 7.4, mimicking the natural process of apatite formation. From ATR-FTIR spectra and ICP-AES analysis, the crystalline phase nucleated on the BC microfibrils surface was calcium deficient carbonated apatite through initial formation of octacalcium phosphate (OCP) or OCP like calcium phosphate phase regardless of the substrates. Morphology of the deposits from SEM, FE-SEM, and TEM observations revealed the fine structure of thin film plates uniting together to form apatite globules of various size (from <1 mum to 3 mum) with respect to the substrates. Surface modification by TEMPO (2,2,6,6-tetramethylpyperidine-1-oxyl)-mediated oxidation, which can readily form active carboxyl functional groups upon selective oxidation of primary hydroxyl groups on the surface of BC microfibrils, enhanced the rate of apatite nucleation. Ion exchanged treatment with calcium chloride solution after TEMPO-mediated oxidation was found to be remarkably different from other BC substrates with the highest deposit weight and the smallest apatite globules size. The role of BC substrates to induce mineralization rate differs according to the nature of the BC substrates, which strongly influences the growth behavior of the apatite crystals.
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Affiliation(s)
- Thi Thi Nge
- Laboratory of Biomass Morphogenesis and Information, Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
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289
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Phisalaphong M, Suwanmajo T, Sangtherapitikul P. Novel nanoporous membranes from regenerated bacterial cellulose. J Appl Polym Sci 2007. [DOI: 10.1002/app.27118] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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290
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Clasen C, Sultanova B, Wilhelms T, Heisig P, Kulicke WM. Effects of Different Drying Processes on the Material Properties of Bacterial Cellulose Membranes. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/masy.200651204] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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291
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Klemm D, Heublein B, Fink HP, Bohn A. Cellulose: fascinating biopolymer and sustainable raw material. Angew Chem Int Ed Engl 2006; 44:3358-93. [PMID: 15861454 DOI: 10.1002/anie.200460587] [Citation(s) in RCA: 3081] [Impact Index Per Article: 171.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
As the most important skeletal component in plants, the polysaccharide cellulose is an almost inexhaustible polymeric raw material with fascinating structure and properties. Formed by the repeated connection of D-glucose building blocks, the highly functionalized, linear stiff-chain homopolymer is characterized by its hydrophilicity, chirality, biodegradability, broad chemical modifying capacity, and its formation of versatile semicrystalline fiber morphologies. In view of the considerable increase in interdisciplinary cellulose research and product development over the past decade worldwide, this paper assembles the current knowledge in the structure and chemistry of cellulose, and in the development of innovative cellulose esters and ethers for coatings, films, membranes, building materials, drilling techniques, pharmaceuticals, and foodstuffs. New frontiers, including environmentally friendly cellulose fiber technologies, bacterial cellulose biomaterials, and in-vitro syntheses of cellulose are highlighted together with future aims, strategies, and perspectives of cellulose research and its applications.
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Affiliation(s)
- Dieter Klemm
- Institut für Organische Chemie und Makromolekulare Chemie, Friedrich-Schiller-Universität Jena, 07743 Jena, Germany.
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292
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A hybrid model combining hydrodynamic and biological effects for production of bacterial cellulose with a pilot scale airlift reactor. Biochem Eng J 2006. [DOI: 10.1016/j.bej.2005.02.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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293
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294
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Winter H, Barakat A, Cathala B, Saake B. Preparation of Arabinoxylan and its Sorption on Bacterial Cellulose During Cultivation. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/masy.200551409] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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295
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Bae S, Sugano Y, Shoda M. Improvement of bacterial cellulose production by addition of agar in a jar fermentor. J Biosci Bioeng 2005; 97:33-8. [PMID: 16233586 DOI: 10.1016/s1389-1723(04)70162-0] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2003] [Accepted: 10/14/2003] [Indexed: 11/16/2022]
Abstract
Bacterial cellulose (BC) was produced by Acetobacter xylinum BPR 2001 and its acetan nonproducing mutant EP1 in corn steep liquor-fructose medium in a 10-l jar fermentor supplemented with different agar concentrations ranging from 0% to 1.0% (w/v). The BC productivity of the two strains was increased by adding agar. The maximum BC production of BPR 2001 at an agar concentration of 0.4% was 12.8 g/l compared with 8 g/l without agar. The mutant EP1 produced 11.6 g/l of BC at an agar concentration of 0.6%, while only 5.5 g/l was produced in the control. Enhanced productivity is associated with an increase in viscosity of the culture, dispersion of BC pellets, and number of free cells due to agar addition, suggesting that acetan produced by BPR 2001 has a critical role in enhanced BC production.
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Affiliation(s)
- Sangok Bae
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan
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296
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Schönfelder U, Abel M, Wiegand C, Klemm D, Elsner P, Hipler UC. Influence of selected wound dressings on PMN elastase in chronic wound fluid and their antioxidative potential in vitro. Biomaterials 2005; 26:6664-73. [PMID: 15978664 DOI: 10.1016/j.biomaterials.2005.04.030] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2004] [Accepted: 04/07/2005] [Indexed: 11/23/2022]
Abstract
Exudates from non-healing wounds contain elevated levels of proteolytic enzymes, like elastase from polymorphonuclear granulocytes (PMN elastase), reactive oxygen species (ROS) and reactive nitrogen species (RNS). The overproduction of proteolytic enzymes leads to reduced concentrations of growth factors and proteinase inhibitors, resulting in an imbalance between degradation and remodelling processes. Thus, the reduction of protein-degrading enzymes and scavenging of ROS and RNS seem to be suitable ways to support the healing process of chronic stagnating wounds. The aim of this study was to test selected wound dressings from different biomaterials (collagen, oxidized regenerated cellulose (ORC) and ORC/collagen mixture), regarding their antioxidative potential in vitro and their influence on the concentration and activity of PMN elastase in chronic wound fluid. Antioxidant capacity of the investigated wound dressing was determined by a pholasin-based chemiluminescent assay. PMN elastase concentration was determined by means of ELISA. Enzyme activities could be measured by a fluorescence assay. As the presented data demonstrates, all tested materials showed antioxidant capacity. In addition, the investigated materials were able to reduce the concentration and activity of PMN elastase. Beside other aspects, such as biocompatibility, biodegradability, fluid absorption and clinical effects (e.g. angiogenesis and microcirculation), the understanding of these properties may help to support the further refinement of wound dressings for improved wound healing.
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Affiliation(s)
- Ute Schönfelder
- Department of Dermatology, Friedrich Schiller University, 07743 Jena, Germany.
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297
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Jung JY, Park JK, Chang HN. Bacterial cellulose production by Gluconacetobacter hansenii in an agitated culture without living non-cellulose producing cells. Enzyme Microb Technol 2005. [DOI: 10.1016/j.enzmictec.2005.02.019] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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298
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Klemm D, Heublein B, Fink HP, Bohn A. Cellulose: faszinierendes Biopolymer und nachhaltiger Rohstoff. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200460587] [Citation(s) in RCA: 162] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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299
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Battad-Bernardo E, McCrindle SL, Couperwhite I, Neilan BA. Insertion of an E. coli lacZ gene in Acetobacter xylinus for the production of cellulose in whey. FEMS Microbiol Lett 2004; 231:253-60. [PMID: 14987772 DOI: 10.1016/s0378-1097(04)00007-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2003] [Revised: 12/16/2003] [Accepted: 12/21/2003] [Indexed: 11/16/2022] Open
Abstract
A mini-Tn10:lacZ:kan was inserted into a wild-type strain of Acetobacter xylinus by random transposon mutagenesis, generating a lactose-utilising and cellulose-producing mutant strain designated ITz3. Antibiotic selection plate assays and Southern hybridisation revealed that the lacZ gene was inserted once into the chromosome of strain ITz3 and was stably maintained in non-selective medium after more than 60 generations. The modified strain had, on the average, a 28-fold increase in cellulose production and a 160-fold increase in beta-galactosidase activity when grown in lactose medium. beta-Galactosidase activity is present in either lactose or sucrose medium indicating that the gene is constitutively expressed. Cellulose and beta-galactosidase production by the modified strain was also evaluated in pure and enriched whey substrates. Utilisation of lactose in whey substrate by ITz3 reached 17 g l(-1) after 4 days incubation.
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Affiliation(s)
- Evelyn Battad-Bernardo
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia
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300
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YUNOKI S, OSADA Y, KONO H, TAKAI M. Role of Ethanol in Improvement of Bacterial Cellulose Production: Analysis Using 13C-Labeled Carbon Sources. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2004. [DOI: 10.3136/fstr.10.307] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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