1
|
Mauro F, Corrado B, De Gregorio V, Lagreca E, Di Natale C, Vecchione R, Netti PA. Exploring the evolution of bacterial cellulose precursors and their potential use as cellulose-based building blocks. Sci Rep 2024; 14:11613. [PMID: 38773229 PMCID: PMC11109180 DOI: 10.1038/s41598-024-62462-9] [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: 03/09/2024] [Accepted: 05/16/2024] [Indexed: 05/23/2024] Open
Abstract
Natural polymers have found increased use in a wider range of applications due to their less harmful effects. Notably, bacterial cellulose has gained significant consideration due to its exceptional physical and chemical properties and its substantial biocompatibility, which makes it an attractive candidate for several biomedical applications. This study attempts to thoroughly unravel the microstructure of bacterial cellulose precursors, known as bioflocculants, which to date have been poorly characterised, by employing both electron and optical microscopy techniques. Here, starting from bioflocculants from Symbiotic Culture of Bacteria and Yeast (SCOBY), we proved that their microstructural features, such as porosity percentage, cellulose assembly degree, fibres' density and fraction, change in a spatio-temporal manner during their rising toward the liquid-air interface. Furthermore, our research identified a correlation between electron and optical microscopy parameters, enabling the assessment of bioflocculants' microstructure without necessitating offline sample preparation procedures. The ultimate goal was to determine their potential suitability as a novel cellulose-based building block material with tuneable structural properties. Our investigations substantiate the capability of SCOBY bioflocculants, characterized by distinct microstructures, to successfully assemble within a microfluidic device, thereby generating a cellulose sheet endowed with specific and purposefully designed structural features.
Collapse
Affiliation(s)
- Francesca Mauro
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
- Istituto Italiano di Tecnologia, Naples, Italy
| | - Brunella Corrado
- Interdisciplinary Research Centre on Biomaterials, University of Naples Federico II, Naples, Italy
| | | | | | - Concetta Di Natale
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
| | | | - Paolo Antonio Netti
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
- Istituto Italiano di Tecnologia, Naples, Italy
- Interdisciplinary Research Centre on Biomaterials, University of Naples Federico II, Naples, Italy
| |
Collapse
|
2
|
Zefirov VV, Sadykova VS, Ivanenko IP, Kuznetsova OP, Butenko IE, Gromovykh TI, Kiselyova OI. Liquid-crystalline ordering in bacterial cellulose produced by Gluconacetobaсter hansenii on glucose-containing media. Carbohydr Polym 2022; 292:119692. [PMID: 35725180 DOI: 10.1016/j.carbpol.2022.119692] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 05/31/2022] [Accepted: 05/31/2022] [Indexed: 11/16/2022]
Abstract
This research is dedicated to the studies of the microscale morphology of bacterial cellulose (BC) obtained by means of static cultivation of Gluconacetobacter hansenii GH-1/2008. We found that the microscale morphology depended on the BC production rate that was varied by using different glucose concentrations in the cultivation medium. It was revealed that at higher production rates, BC fibrils were aligned in a liquid-crystalline-like (LC-like) order. The observed helical alignment was always left-handed. The half-periods of the helix varied from 50 μm to 150 μm depending on the cultivation conditions. The mechanical and water absorption properties of the obtained BC pellicles were measured. The former correlated mainly with the density of the samples; the latter were the best for films with layered structure, where the BC had segregated into fleece sheets separated by gaps with low density of fibrils.
Collapse
Affiliation(s)
- Vadim V Zefirov
- Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie gory 1-2, Moscow 119991, Russian Federation; A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova str., 28, Moscow 119991, Russian Federation
| | - Vera S Sadykova
- G.F. Gauze Institute of New Antibiotics, Bolshaya Pirogovskaya str., 11, bld. 1, Moscow 119021, Russian Federation
| | - Ilya P Ivanenko
- Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie gory 1-2, Moscow 119991, Russian Federation
| | - Olga P Kuznetsova
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygina str., 4, Moscow 119991, Russian Federation
| | - Ivan E Butenko
- G.F. Gauze Institute of New Antibiotics, Bolshaya Pirogovskaya str., 11, bld. 1, Moscow 119021, Russian Federation
| | - Tatiana I Gromovykh
- ChemBioTech Department, Moscow Polytechnic University, Bolshaya Semenovskaya str., 38, Moscow 107023, Russian Federation
| | - Olga I Kiselyova
- Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie gory 1-2, Moscow 119991, Russian Federation.
| |
Collapse
|
3
|
The Roles of the Various Cellulose Biosynthesis Operons in Komagataeibacter hansenii ATCC 23769. Appl Environ Microbiol 2022; 88:e0246021. [PMID: 35319232 DOI: 10.1128/aem.02460-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Cellulose is the most abundant biopolymer on earth and offers versatile applicability in biotechnology. Bacterial cellulose, especially, is an attractive material because it represents pure microcrystalline cellulose. The cellulose synthase complex of acetic acid bacteria serves as a model for general studies on (bacterial) cellulose synthesis. The genome of Komagataeibacter hansenii ATCC 23769 encodes three cellulose synthase (CS) operons of different sizes and gene compositions. This implies the question of which role each of the three CS-encoding operons, bcsAB1, bcsAB2, and bcsAB3, plays in overall cellulose synthesis. Therefore, we constructed markerless deletions in K. hansenii ATCC 23769, yielding mutant strains that expressed only one of the three CSs. Apparently, BcsAB1 is the only CS that produces fibers of crystalline cellulose. The markerless deletion of bcsAB1 resulted in a nonfiber phenotype in scanning electron microscopy analysis. Expression of the other CSs resulted in a different, nonfibrous extracellular polymeric substance (nfEPS) structure wrapping the cells, which is proposed to contain acetylated cellulose. Transcription analysis revealed that all CSs were expressed continuously and that bcsAB2 showed a higher transcription level than bcsAB1. Moreover, we were able to link the expression of diguanylate cyclase B (dgcB) to cellulose production. IMPORTANCE Acetic acid bacteria form a massive biofilm called "mother of vinegar," which is built of cellulose fibers. Bacterial cellulose is an appealing biomaterial with manifold applications in biomedicine and biotechnology. Because most cellulose-producing acetic acid bacteria express several cellulose synthase operons, a deeper understanding of their contribution to the synthesis of modified forms of cellulose fibers within a natural biofilm is of special interest. For the first time, we were able to identify the contribution of each of the three cellulose synthases to cellulose formation in Komagataeibacter hansenii ATCC 23769 after a chromosomal clean deletion. Moreover, we were able to depict their roles in spatial composition of the biofilm. These findings might be applicable in the future for naturally modified biomaterials with novel properties.
Collapse
|
4
|
Bacterial cellulose production, functionalization, and development of hybrid materials using synthetic biology. Polym J 2022. [DOI: 10.1038/s41428-021-00606-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
5
|
Żywicka A, Ciecholewska-Juśko D, Drozd R, Rakoczy R, Konopacki M, Kordas M, Junka A, Migdał P, Fijałkowski K. Preparation of Komagataeibacter xylinus Inoculum for Bacterial Cellulose Biosynthesis Using Magnetically Assisted External-Loop Airlift Bioreactor. Polymers (Basel) 2021; 13:polym13223950. [PMID: 34833249 PMCID: PMC8623894 DOI: 10.3390/polym13223950] [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: 10/14/2021] [Revised: 11/02/2021] [Accepted: 11/09/2021] [Indexed: 01/26/2023] Open
Abstract
The aim of this study was to demonstrate the applicability of a novel magnetically assisted external-loop airlift bioreactor (EL-ALB), equipped with rotating magnetic field (RMF) generators for the preparation of Komagataeibacterxylinus inoculum during three-cycle repeated fed-batch cultures, further used for bacterial cellulose (BC) production. The fermentation carried out in the RMF-assisted EL-ALB allowed to obtain an inoculum of more than 200× higher cellular density compared to classical methods of inoculum preparation. The inoculum obtained in the RMF-assisted EL-ALB was characterized by a high and stable metabolic activity during repeated batch fermentation process. The application of the RMF-assisted EL-ALB for K. xylinus inoculum production did not induce the formation of cellulose-deficient mutants. It was also confirmed that the ability of K. xylinus to produce BC was at the same level (7.26 g/L of dry mass), regardless of inoculum age. Additionally, the BC obtained from the inoculum produced in the RMF-assisted EL-ALB was characterized by reproducible water-related properties, mechanical strength, nano-fibrillar structure and total crystallinity index. The lack of any negative impact of inoculum preparation method using RMF-assisted EL-ALB on BC properties is of paramount value for its future applications, including use as a biomaterial in tissue engineering, wound healing, and drug delivery, where especially BC liquid capacity, nanostructure, crystallinity, and mechanical properties play essential roles.
Collapse
Affiliation(s)
- Anna Żywicka
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Piastów Ave. 45, 70-311 Szczecin, Poland; (D.C.-J.); (R.D.)
- Correspondence: (A.Ż.); (K.F.); Tel.: +48-91-449-6709 (A.Ż.); +48-91-449-6714 (K.F.)
| | - Daria Ciecholewska-Juśko
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Piastów Ave. 45, 70-311 Szczecin, Poland; (D.C.-J.); (R.D.)
| | - Radosław Drozd
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Piastów Ave. 45, 70-311 Szczecin, Poland; (D.C.-J.); (R.D.)
| | - Rafał Rakoczy
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (R.R.); (M.K.); (M.K.)
| | - Maciej Konopacki
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (R.R.); (M.K.); (M.K.)
| | - Marian Kordas
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; (R.R.); (M.K.); (M.K.)
| | - Adam Junka
- Department of Pharmaceutical Microbiology and Parasitology, Faculty of Pharmacy, Medical University of Wroclaw, Borowska 211a, 50-534 Wrocław, Poland;
| | - Paweł Migdał
- Department of Environment, Hygiene and Animal Welfare, Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, Chełmońskiego 38C, 51-630 Wrocław, Poland;
| | - Karol Fijałkowski
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Piastów Ave. 45, 70-311 Szczecin, Poland; (D.C.-J.); (R.D.)
- Correspondence: (A.Ż.); (K.F.); Tel.: +48-91-449-6709 (A.Ż.); +48-91-449-6714 (K.F.)
| |
Collapse
|
6
|
Corzo Salinas DR, Sordelli A, Martínez LA, Villoldo G, Bernal C, Pérez MS, Cerrutti P, Foresti ML. Production of bacterial cellulose tubes for biomedical applications: Analysis of the effect of fermentation time on selected properties. Int J Biol Macromol 2021; 189:1-10. [PMID: 34364942 DOI: 10.1016/j.ijbiomac.2021.08.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 08/01/2021] [Accepted: 08/02/2021] [Indexed: 01/11/2023]
Abstract
Biosynthesis of bacterial cellulose (BC) in cylindrical oxygen permeable molds allows the production of hollow tubular structures of increasing interest for biomedical applications (artificial blood vessels, ureters, urethra, trachea, esophagus, etc.). In the current contribution a simple set-up is used to obtain BC tubes of predefined dimensions; and the effects of fermentation time on the water holding capacity, nanofibrils network architecture, specific surface area, chemical purity, thermal stability, mechanical properties, and cell adhesion, proliferation and migration of BC tubes are systematically analysed for the first time. The results reported highlight the role of culture time on key properties of the BC tubes produced, with significant differences arising from the denser and more compact fibril arrangements generated at longer fermentation intervals.
Collapse
Affiliation(s)
- D R Corzo Salinas
- Grupo de Biotecnología y Materiales Biobasados, Instituto de Tecnología en Polímeros y Nanotecnología (ITPN-UBA-CONICET), Facultad de Ingeniería, Universidad de Buenos Aires, Las Heras 2214 (CP 1127AAR), Buenos Aires, Argentina; Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de Buenos Aires, Argentina (UBA), Av. Intendente Güiraldes 2620 (CP 1428BGA), Pabellón de Industrias, Ciudad Universitaria, Buenos Aires, Argentina
| | - A Sordelli
- Instituto de Medicina Traslacional e Ingeniería Biomédica (IMTIB), Hospital Italiano de Buenos Aires (HIBA), CONICET, Instituto Universitario HIBA, Potosí 4240 (CP 1199), Buenos Aires, Argentina
| | - L A Martínez
- Centro IREN, Universidad Tecnológica Nacional, Buenos Aires, Argentina
| | - G Villoldo
- Instituto de Medicina Traslacional e Ingeniería Biomédica (IMTIB), Hospital Italiano de Buenos Aires (HIBA), CONICET, Instituto Universitario HIBA, Potosí 4240 (CP 1199), Buenos Aires, Argentina
| | - C Bernal
- Grupo de Ingeniería en Polímeros y Materiales Compuestos, Instituto de Tecnología en Polímeros y Nanotecnología (ITPN-UBA-CONICET), Facultad de Ingeniería, Universidad de Buenos Aires, Las Heras 2214 (CP 1127AAR), Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - M S Pérez
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Instituto de Ingeniería Biomédica, Universidad de Buenos Aires, Buenos Aires, Argentina; Department of Electrical and Computer Engineering, Florida International University, Miami, FL 33174, USA.
| | - P Cerrutti
- Grupo de Biotecnología y Materiales Biobasados, Instituto de Tecnología en Polímeros y Nanotecnología (ITPN-UBA-CONICET), Facultad de Ingeniería, Universidad de Buenos Aires, Las Heras 2214 (CP 1127AAR), Buenos Aires, Argentina; Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de Buenos Aires, Argentina (UBA), Av. Intendente Güiraldes 2620 (CP 1428BGA), Pabellón de Industrias, Ciudad Universitaria, Buenos Aires, Argentina
| | - M L Foresti
- Grupo de Biotecnología y Materiales Biobasados, Instituto de Tecnología en Polímeros y Nanotecnología (ITPN-UBA-CONICET), Facultad de Ingeniería, Universidad de Buenos Aires, Las Heras 2214 (CP 1127AAR), Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
| |
Collapse
|
7
|
Skiba EA, Shavyrkina NA, Budaeva VV, Sitnikova AE, Korchagina AA, Bychin NV, Gladysheva EK, Pavlov IN, Zharikov AN, Lubyansky VG, Semyonova EN, Sakovich GV. Biosynthesis of Bacterial Cellulose by Extended Cultivation with Multiple Removal of BC Pellicles. Polymers (Basel) 2021; 13:2118. [PMID: 34203298 PMCID: PMC8271380 DOI: 10.3390/polym13132118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/25/2021] [Accepted: 06/26/2021] [Indexed: 01/16/2023] Open
Abstract
Extended cultivation with multiple removal of BC pellicles is proposed herein as a new biosynthetic process for bacterial cellulose (BC). This method enhances the BC surface area by 5-11 times per unit volume of the growth medium, improving the economic efficiency of biosynthesis. The resultant BC gel-films were thin, transparent, and congruent. The degree of polymerization (DP) and elastic modulus (EM) depended on the number of BC pellicle removals, vessel shape, and volume. The quality of BC from removals II-III to VII was better than from removal I. The process scale-up of 1:40 by volume increased DP by 1.5 times and EM by 5 times. A fact was established that the symbiotic Medusomyces gisevii Sa-12 was adaptable to exhausted growth medium: the medium was able to biosynthesize BC for 60 days, while glucose ran low at 24 days. On extended cultivation, DP and EM were found to decline by 39-64% and 57-65%, respectively. The BC gel-films obtained upon removals I-VI were successfully trialed in experimental tension-free hernioplasty.
Collapse
Affiliation(s)
- Ekaterina A. Skiba
- Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences (IPCET SB RAS), 659322 Biysk, Altai Krai, Russia; (E.A.S.); (N.A.S.); (A.E.S.); (A.A.K.); (N.V.B.); (E.K.G.); (I.N.P.); (G.V.S.)
| | - Nadezhda A. Shavyrkina
- Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences (IPCET SB RAS), 659322 Biysk, Altai Krai, Russia; (E.A.S.); (N.A.S.); (A.E.S.); (A.A.K.); (N.V.B.); (E.K.G.); (I.N.P.); (G.V.S.)
- Biysk Technological Institute, Polzunov Altai State Technical University, 659305 Biysk, Altai Krai, Russia
| | - Vera V. Budaeva
- Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences (IPCET SB RAS), 659322 Biysk, Altai Krai, Russia; (E.A.S.); (N.A.S.); (A.E.S.); (A.A.K.); (N.V.B.); (E.K.G.); (I.N.P.); (G.V.S.)
| | - Anastasia E. Sitnikova
- Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences (IPCET SB RAS), 659322 Biysk, Altai Krai, Russia; (E.A.S.); (N.A.S.); (A.E.S.); (A.A.K.); (N.V.B.); (E.K.G.); (I.N.P.); (G.V.S.)
- Biysk Technological Institute, Polzunov Altai State Technical University, 659305 Biysk, Altai Krai, Russia
| | - Anna A. Korchagina
- Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences (IPCET SB RAS), 659322 Biysk, Altai Krai, Russia; (E.A.S.); (N.A.S.); (A.E.S.); (A.A.K.); (N.V.B.); (E.K.G.); (I.N.P.); (G.V.S.)
| | - Nikolay V. Bychin
- Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences (IPCET SB RAS), 659322 Biysk, Altai Krai, Russia; (E.A.S.); (N.A.S.); (A.E.S.); (A.A.K.); (N.V.B.); (E.K.G.); (I.N.P.); (G.V.S.)
| | - Evgenia K. Gladysheva
- Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences (IPCET SB RAS), 659322 Biysk, Altai Krai, Russia; (E.A.S.); (N.A.S.); (A.E.S.); (A.A.K.); (N.V.B.); (E.K.G.); (I.N.P.); (G.V.S.)
| | - Igor N. Pavlov
- Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences (IPCET SB RAS), 659322 Biysk, Altai Krai, Russia; (E.A.S.); (N.A.S.); (A.E.S.); (A.A.K.); (N.V.B.); (E.K.G.); (I.N.P.); (G.V.S.)
- Biysk Technological Institute, Polzunov Altai State Technical University, 659305 Biysk, Altai Krai, Russia
| | - Andrey N. Zharikov
- Chair of Neymark Departmental Surgery and Hospital Surgery, Altai State Medical University, 656038 Barnaul, Altai Krai, Russia; (A.N.Z.); (V.G.L.)
| | - Vladimir G. Lubyansky
- Chair of Neymark Departmental Surgery and Hospital Surgery, Altai State Medical University, 656038 Barnaul, Altai Krai, Russia; (A.N.Z.); (V.G.L.)
| | - Elena N. Semyonova
- Anatomic Pathology Department, Altai Krai Clinical Hospital, 656024 Barnaul, Altai Krai, Russia;
| | - Gennady V. Sakovich
- Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences (IPCET SB RAS), 659322 Biysk, Altai Krai, Russia; (E.A.S.); (N.A.S.); (A.E.S.); (A.A.K.); (N.V.B.); (E.K.G.); (I.N.P.); (G.V.S.)
| |
Collapse
|
8
|
Optimization of Moist and Oven-Dried Bacterial Cellulose Production for Functional Properties. Polymers (Basel) 2021; 13:polym13132088. [PMID: 34202870 PMCID: PMC8272063 DOI: 10.3390/polym13132088] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/18/2021] [Accepted: 06/19/2021] [Indexed: 11/16/2022] Open
Abstract
Bacterial cellulose (BC) is a natural polymer with properties suitable for tissue engineering and possible applications in scaffold production. However, current procedures have limitations in obtaining BC pellicles with the desired structural, physical, and mechanical properties. Thus, this study analyzed the optimal culture conditions of BC membranes and two types of processing: draining and oven-drying. The aim was to obtain BC membranes with properties suitable for a wound dressing material. Two studies were carried out. In the preliminary study, the medium (100 mL) was inoculated with varying volumes (1, 2, 3, 4, and 5 mL) and incubated statically for different periods (3, 6, 9, 12, and 18 days), using a full factorial experimental design. Thickness, uniformity, weight, and yield were evaluated. In the optimization study, a Box–Behnken design was used. Two independent variables were used: inoculum volume (X1: 1, 3, and 5 mL) and fermentation period (X2: 6, 12, and 18 d) to determine the target response variables: thickness, swelling ratio, drug release, fiber diameter, tensile strength, and Young’s modulus for both dry and moist BC membranes. The mathematical modelling of the effect of the two independent variables was performed by response surface methodology (RSM). The obtained models were validated with new experimental values and confirmed for all tested properties, except Young’s modulus of oven-dried BC. Thus, the optimal properties in terms of a scaffold material of the moist BC were obtained with an inoculum volume of 5% (v/v) and 16 d of fermentation. While, for the oven-dried membranes, optimal properties were obtained with a 4% (v/v) and 14 d of fermentation.
Collapse
|
9
|
Production of bacterial cellulose using Gluconacetobacter kombuchae immobilized on Luffa aegyptiaca support. Sci Rep 2021; 11:2912. [PMID: 33536530 PMCID: PMC7858635 DOI: 10.1038/s41598-021-82596-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/20/2021] [Indexed: 01/30/2023] Open
Abstract
The present work report for the first time on the production of bacterial cellulose (BC) using natural loofa sponge (Luffa aegyptiaca) as a scaffold for the immobilization of Gluconacetobacter kombuchae. Bacterial cellulose (BC) are recently gained more attention in several fields including biological and biomedical applications due to their outstanding physico-chemical characteristics including high thermal stability, easy biodegradability, good water holding capacity, high tensile strength, and high degree of polymerization. The increase in requirement of alternative method for the enhancement of BC production under economical aspect develops a positive impact in large scale industries. In this study, Luffa aegyptiaca (LA) was introduced in a separate fermentation medium so as to enhance the concentration of BC production by Gluconacetobacter kombuchae. Different process/medium parameters such as initial pH, static/shaking condition, inoculum size, nitrogen source, C/N ratio, supplements (ethanol and acetic acid) were analysed for the production of bacterial cellulose using LA support. The maximum yield of BC was obtained using following condition: culturing condition -shaking; initial pH - 5.5; nitrogen source- yeast extract, C/N ratio - 40 and supplement-ethanol. The characterization of the BC was examined using Fourier Transform Infra-Red spectroscopy and thermo gravimetric analysis. The biofilm formation on the surface of LA was examined by SEM photographs. Thus, implementation of LA as a support in shaking fermentation under suitable medium/process variables enhanced the BC production.
Collapse
|
10
|
Xu M, Tremblay PL, Ding R, Xiao J, Wang J, Kang Y, Zhang T. Photo-augmented PHB production from CO 2 or fructose by Cupriavidus necator and shape-optimized CdS nanorods. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 753:142050. [PMID: 32898811 DOI: 10.1016/j.scitotenv.2020.142050] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 06/11/2023]
Abstract
Particulate photocatalysts developed for the solar energy-driven reduction of the greenhouse gas CO2 have a small product range and low specificity. Hybrid photosynthesis expands the number of products with photocatalysts harvesting sunlight and transferring charges to microbes harboring versatile metabolisms for bioproduction. Besides CO2, abiotic photocatalysts have been employed to increase microbial production yields of reduced compounds from organic carbon substrates. Most single-reactor hybrid photosynthesis systems comprise CdS assembled in situ by microbial activity. This approach limits optimization of the morphology, crystal structure, and crystallinity of CdS for higher performance, which is usually done via synthesis methods incompatible with life. Here, shape and activity optimized CdS nanorods were hydrothermally produced and subsequently applied to Cupriavidus necator for the heterotrophic and autotrophic production of the bioplastic polyhydroxybutyrate (PHB). C. necator with CdS NR under light produced 1.5 times more PHB when compared to the same bacterium with suboptimal commercially-available CdS. Illuminated C. necator with CdS NR synthesized 1.41 g PHB from fructose over 120 h and 28 mg PHB from CO2 over 48 h. Interestingly, the beneficial effect of CdS NR was specific to C. necator as the metabolism of other microbes often employed for bioproduction including yeast and bacteria was negatively impacted. These results demonstrate that hybrid photosynthesis is more productive when the photocatalyst characteristics are optimized via a separated synthesis process prior to being coupled with microbes. Furthermore, bioproduction improvement by CdS-based photocatalyst requires specific microbial species highlighting the importance of screening efforts for the development of performant hybrid photosynthesis.
Collapse
Affiliation(s)
- Mengying Xu
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China; School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan 430070, PR China; School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China
| | - Pier-Luc Tremblay
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China; School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan 430070, PR China
| | - Ran Ding
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China; School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan 430070, PR China
| | - Jianxun Xiao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China; School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan 430070, PR China; School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China
| | - Junting Wang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China; School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan 430070, PR China; School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China
| | - Yu Kang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China; School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan 430070, PR China; School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China
| | - Tian Zhang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China; School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan 430070, PR China; School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China.
| |
Collapse
|
11
|
Ding R, Hu S, Xu M, Hu Q, Jiang S, Xu K, Tremblay PL, Zhang T. The facile and controllable synthesis of a bacterial cellulose/polyhydroxybutyrate composite by co-culturing Gluconacetobacter xylinus and Ralstonia eutropha. Carbohydr Polym 2021; 252:117137. [DOI: 10.1016/j.carbpol.2020.117137] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/24/2020] [Accepted: 09/21/2020] [Indexed: 10/23/2022]
|
12
|
A Novel Approach Using Conventional Methodologies to Scale up BNC Production Using Komagataeibacter medellinensis and Rotten Banana Waste as Alternative. Processes (Basel) 2020. [DOI: 10.3390/pr8111469] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Currently, cellulose nanostructures are among the most promising structures, and extensive work in materials and biotechnology industries is aimed at identifying an efficient process of production. Even when production at the laboratory scale is successful, crucial aspects of increased commercial applications for cellulose nanostructures are linked to large-scale production. Large-scale production requires a balance between the cost of the culture medium and product value. Therefore, in this work, for the optimization and scaling up of bacterial nanocellulose, a culture medium consisting of rotten banana unsuitable for human consumption was used for the first time as an inexpensive feedstock. Initially, the bacterial nanocellulose (BNC) culture medium conditions were optimized, and it was established that a glucose concentration of 26.4 g/L and a V/A ratio of 2.2 cm were the optimal conditions for production reaching a BNC yield of 5 g/L, which was 42.4% higher than the best result initially obtained. Finally, the scale-up process was performed, implementing a regime analysis methodology by comparing the characteristic times of the critical mechanisms involved in BNC production, namely, microbial growth, glucose consumption, BNC production, and glucose diffusion into the BNC membrane, as the first approach for this type of BNC production process. The mechanism underlying the BNC production process is glucose diffusion into the BNC membrane (characteristic time, 675.47 h). Thus, the V/A ratio was selected as the scale-up criterion most suitable for producing BNC under static culture conditions, allowing the production of 16 g of BNC after 12 d of fermentation in a plastic bioreactor, which was 3378% higher than that produced in glass vessels. The results obtained in this study may initiate further improvements in BNC commercial production by exploiting different feedstocks.
Collapse
|
13
|
Biotech nanocellulose: A review on progress in product design and today's state of technical and medical applications. Carbohydr Polym 2020; 254:117313. [PMID: 33357876 DOI: 10.1016/j.carbpol.2020.117313] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 12/19/2022]
Abstract
Biotech nanocellulose (bacterial nanocellulose, BNC) is a high potential natural polymer. Moreover, it is the only cellulose type that can be produced biotechnologically using microorganisms resulting in hydrogels with high purity, high mechanical strength and an interconnecting micropore system. Recently, the subject of intensive research is to influence this biosynthesis to create function-determining properties. This review reports on the progress in product design and today's state of technical and medical applications. A novel, dynamic, template-based technology, called Mobile Matrix Reservoir Technology (MMR Tech), is highlighted. Thereby, shape, dimensions, surface properties, and nanonetwork structures can be designed in a process-controlled manner. The formed multilayer materials open up new applications in medicine and technology. Especially medical materials for cardiovascular and visceral surgery, and drug delivery systems are developed. The effective production of layer-structured composites and coatings are important for potential applications in the electronics, paper, food and packaging technologies.
Collapse
|
14
|
BNC Biosynthesis with Increased Productivity in a Newly Designed Surface Air-Flow Bioreactor. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10113850] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The application of bacterial cellulose (BNC) could be widely expanded if the production costs were reduced. This study aims to determine factors simultaneously affecting the yield and tensile strength of BNC in a newly designed surface air-flow bioreactor (SAF). For this purpose, a two-stage study was done. Firstly, the most important factors for high yield were determined based on the Plackett–Burman Design. Secondly, impact of the chosen variables on both responses was assessed in a wide range of factor values. The greatest influence on the yield and mechanical strength was proved for such factors as air-flow ratio, glucose concentration, and culture time. The productivity in a SAF bioreactor with controlled air-flow ratio was enhanced by 65%. In terms of mechanical properties, the stress of BNC membranes varied from 0.8 to 6.39 MPa depending on the culture conditions. The results of the performed tests make a useful basis for future optimizations.
Collapse
|
15
|
Amason AC, Nowak JF, Samuel J, Gross RA. Effect of Atomized Delivery of Nutrients on the Growth Characteristics and Microstructure Morphology of Bacterial Cellulose. Biomacromolecules 2020; 21:508-516. [PMID: 31756098 DOI: 10.1021/acs.biomac.9b01249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This work demonstrates a general strategy for introducing remarkable changes in matrix organization and, consequently, functional properties of bacterial cellulose (BC). BC-producing cells were induced, using a well-defined atomized droplet nutrient delivery (ADND) system, to form pellicles with a regular layered morphology that persists throughout the mat depth. In contrast, the morphology of mats formed by conventional static medium nutrient delivery (SMND) is irregular with no distinguishable pattern. ADND also resulted in larger meso-scale average pore sizes but did not alter the fibril diameter (∼70 nm) and crystallinity index (92-95%). The specific modulus and specific tensile strength of ADND mats are higher than those of SMND mats. This is due to the regularity of dense layers that are present in ADND mats that are able to sustain tensile loads, when applied parallel to these layers. The density of BC films prepared by ADND is 1.63-fold lower than that of the SMND BC film. Consequently, the water contents (g/g) of ADND- and SMND-prepared BC mats are 263 ± 8.85 and 99.6 ± 2.04, respectively. A model that rationalizes differences in mat morphology resulting from these nutrient delivery methods based on nutrient and oxygen concentration gradients is proposed. This work raises questions as to the extent that ADND can be used to fine-tune the matrix morphology and how the resulting lower density mats will alter the diffusion of actives from the films to wound sites and increase the ability of cells to infiltrate the matrix during tissue engineering.
Collapse
Affiliation(s)
- Anna-Christina Amason
- Center for Biotechnology and Interdisciplinary Studies, Department of Biological Sciences , Rensselaer Polytechnic Institute , 1623 15th Street , Troy , New York 12180 , United States
| | | | | | - Richard A Gross
- Center for Biotechnology and Interdisciplinary Studies, Department of Biological Sciences , Rensselaer Polytechnic Institute , 1623 15th Street , Troy , New York 12180 , United States
| |
Collapse
|
16
|
Żywicka A, Wenelska K, Junka A, Czajkowska J, Fijałkowski K. An efficient method of Yarrowia lipolytica immobilization using oil- and emulsion-modified bacterial cellulose carriers. ELECTRON J BIOTECHN 2019. [DOI: 10.1016/j.ejbt.2019.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
17
|
Żywicka A, Banach A, Junka AF, Drozd R, Fijałkowski K. Bacterial cellulose as a support for yeast immobilization - Correlation between carrier properties and process efficiency. J Biotechnol 2019; 291:1-6. [PMID: 30579888 DOI: 10.1016/j.jbiotec.2018.12.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 12/08/2018] [Accepted: 12/12/2018] [Indexed: 11/17/2022]
Abstract
The aim of the current study was to analyze physicochemical properties of bacterial cellulose (BC) produced by Komagataeibacter xylinus for various periods of time in stationary conditions with regard to its potential as a carrier for yeast (Saccharomyces cerevisiae and Yarrowia lipolytica) immobilization, and subsequently to correlate the relationship between these properties and the efficiency of the immobilization process. Physicochemical properties of BC, depending on the time of its biosynthesis, were as follows: surface area 7.21-11.04 m2/g, pore volume 3.11-3.96 cm3/g, pore diameter 0.011-0.109 nm, water holding capacity 32-64%, water relies capacity 10600-33400%, swelling ratio 132-389%, polymerization degree 2260-4780 and total crystallinity index 1.22-1.96 (3-30 days, respectively). The linear regression analysis showed that number of immobilized yeasts increased with values of surface area, pore size, pore diameter, swelling ratio, water release capacity and polymerization degree. The opposite trend was observed in case of water holding capacity and total crystallinity index. The analysis of physicochemical properties of BC performed in the current study have significant translational implications for understanding the relationships between BC-based carriers and the efficiency of yeast immobilization.
Collapse
Affiliation(s)
- Anna Żywicka
- West Pomeranian University of Technology in Szczecin, Faculty of Biotechnology and Animal Husbandry, Department of Immunology, Microbiology and Physiological Chemistry, Piastów 45, 70-311 Szczecin, Poland.
| | - Anna Banach
- The Silesian University of Technology, Faculty of Power and Environmental Engineering, Department of Environmental Biotechnology, Akademicka 2, 44-100 Gliwice, Poland.
| | - Adam F Junka
- Medical University of Wrocław, Faculty of Pharmacy with Medical Analytics Division, Department of Pharmaceutical Microbiology and Parasitology, Borowska 211, 50-556 Wrocław, Poland; Wrocław Research Centre EIT+, Laboratory of Microbiology, Stablowicka 147, 54-066 Wrocław, Poland.
| | - Radosław Drozd
- West Pomeranian University of Technology in Szczecin, Faculty of Biotechnology and Animal Husbandry, Department of Immunology, Microbiology and Physiological Chemistry, Piastów 45, 70-311 Szczecin, Poland.
| | - Karol Fijałkowski
- West Pomeranian University of Technology in Szczecin, Faculty of Biotechnology and Animal Husbandry, Department of Immunology, Microbiology and Physiological Chemistry, Piastów 45, 70-311 Szczecin, Poland.
| |
Collapse
|
18
|
Immobilization pattern of morphologically different microorganisms on bacterial cellulose membranes. World J Microbiol Biotechnol 2019; 35:11. [PMID: 30604023 DOI: 10.1007/s11274-018-2584-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 12/18/2018] [Indexed: 10/27/2022]
Abstract
The aim of this study was to assess the immobilization pattern of microorganisms characterized by varying cell shapes and sizes (rod-shaped bacteria Lactobacillus delbruecki, spherical-shaped yeast Saccharomyces cerevisiae and hyphae forms of Yarrowia lipolytica) on bacterial cellulose of various material properties. The 'adsorption-incubation' method was used for the purposes of immobilization. The immobilization pattern included adsorption efficiency, ability of the immobilized cells to multiply within the carrier expressed as incubation efficiency and the degree of release of the immobilized cells from the carrier. The efficiency of adsorption and incubation was affected by the morphology of the immobilized cells and increased together with cellulose surface area. For smaller bacterial cells a higher level of loading was obtained on the same surface as compared to larger yeast cells. During incubation, the number of immobilized bacterial and yeast cells increased significantly in comparison to the number of cells adsorbed on the carrier during the adsorption step. Despite the morphological differences between the S. cerevisiae and Y. lipolytica cells, there were no statistically significant differences in the efficiency of adsorption and incubation. It was also revealed that the release ratio values obtained for L. delbruecki and S. cerevisiae increased along with cellulose surface area. Interestingly, Y. lipolytica cells in the pseudohyphae and hyphae forms penetrated deeply into the three-dimensional network of BC nanofibrils which prevented subsequent cell release. It was confirmed that carrier selection must be individually matched to the type of immobilized cells based especially on its porosity-related parameters.
Collapse
|
19
|
Tian D, Shen F, Hu J, Renneckar S, Saddler JN. Enhancing bacterial cellulose production via adding mesoporous halloysite nanotubes in the culture medium. Carbohydr Polym 2018; 198:191-196. [DOI: 10.1016/j.carbpol.2018.06.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 05/07/2018] [Accepted: 06/05/2018] [Indexed: 10/28/2022]
|
20
|
Żywicka A, Junka AF, Szymczyk P, Chodaczek G, Grzesiak J, Sedghizadeh PP, Fijałkowski K. Bacterial cellulose yield increased over 500% by supplementation of medium with vegetable oil. Carbohydr Polym 2018; 199:294-303. [PMID: 30143132 DOI: 10.1016/j.carbpol.2018.06.126] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 06/29/2018] [Accepted: 06/30/2018] [Indexed: 11/29/2022]
Abstract
Bacterial cellulose (BC), produced by Komagataeibacter xylinus, has numerous applications to medicine and industry. A major limitation of BC use is relatively low production rates and high culturing media costs. By supplementing culture media with 1% vegetable oil, we achieved BC yield exceeding 500% over the yield obtained in standard media. BC properties were similar to cellulose cultured in standard methods with regard to cytotoxicity but displayed significantly higher water swelling capacity and mechanical strength. As we demonstrated herein, this significantly increased BC yield is the result of microscopic and macroscopic physiochemical processes reflecting a complex interaction between K. xylinus biophysiology, chemical processes of BC synthesis, and physiochemical forces between BC membranes, oil and culturing vessel walls. Our findings have significant translational implications to biomedical and clinical settings and can be transformative for the cellulose biopolymer industry.
Collapse
Affiliation(s)
- Anna Żywicka
- Department of Immunology, Microbiology and Physiological Chemistry, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, Szczecin, Piastów 45, 70-311 Szczecin, Poland.
| | - Adam F Junka
- Laboratory of Microbiology, Wrocław Research Centre EIT+, Stablowicka 147, 54-066 Wrocław, Poland.
| | - Patrycja Szymczyk
- Center for Advanced Manufacturing Technologies (CAMT/FPC), Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Łukasiewicza 5, 50-371 Wrocław, Poland.
| | - Grzegorz Chodaczek
- Laboratory of Confocal Microscopy, Wrocław Research Centre EIT+, Stablowicka 147, 54-066, Wrocław, Poland.
| | - Jakub Grzesiak
- Laboratory of Scaning Electron Microscopy, Wrocław Research Centre EIT+, Stablowicka 147, 54-066 Wrocław, Poland.
| | - Parish Paymon Sedghizadeh
- Center for Biofilms, Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, United States.
| | - Karol Fijałkowski
- Department of Immunology, Microbiology and Physiological Chemistry, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, Szczecin, Piastów 45, 70-311 Szczecin, Poland.
| |
Collapse
|
21
|
Żywicka A, Fijałkowski K, Junka AF, Grzesiak J, El Fray M. Modification of Bacterial Cellulose with Quaternary Ammonium Compounds Based on Fatty Acids and Amino Acids and the Effect on Antimicrobial Activity. Biomacromolecules 2018; 19:1528-1538. [PMID: 29579391 DOI: 10.1021/acs.biomac.8b00183] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the present work, bacterial cellulose (BC) membranes have been modified with bioactive compounds based on long chain dimer of C18 linoleic acid, referred to as the dilinoleic acid (DLA) and tyrosine (Tyr), a natural amino acid capable of forming noncovalent cation-π interactions with positively charged ethylene diamine (EDA). This new compound, [EDA][DLA-Tyr], has been synthesized by simple coupling reaction, and its chemical structure was characterized by 1H NMR and Fourier transform infrared spectroscopy. The antimicrobial activity of a new compound against S. aureus and S. epidermidis, two cocci associated with skin and wound infections, was assessed. The [EDA][DLA-Tyr] impregnated BC exhibited strong and long-term antimicrobial activity against both staphylococcal species. The results showed a 57-66% and 56-60% reduction in S. aureus and S. epidermidis viability, respectively, depending on [EDA][DLA-Tyr] concentration used. Importantly, [EDA][DLA-Tyr] molecules were released gradually from the BC pellicle, while a reference antibiotic, erythromycine (ER), did not show any antibacterial activity against S. aureus and S. epidermidis after 48 h of soaking in deionized water. Thus, a combination of [EDA][DLA-Tyr] and BC could be a promising new class of wound dressing displaying both biocompatibility and antimicrobial activity.
Collapse
Affiliation(s)
- Anna Żywicka
- Department of Immunology, Microbiology and Physiological Chemistry , West Pomeranian University of Technology, Szczecin, Faculty of Biotechnology and Animal Husbandry , Piastów 45 , 71-311 Szczecin , Poland
| | - Karol Fijałkowski
- Department of Immunology, Microbiology and Physiological Chemistry , West Pomeranian University of Technology, Szczecin, Faculty of Biotechnology and Animal Husbandry , Piastów 45 , 71-311 Szczecin , Poland
| | - Adam F Junka
- Department of Pharmaceutical Microbiology and Parasitology , Wrocław Medical University , Borowska 211A , 50-556 Wrocław , Poland
| | | | - Miroslawa El Fray
- Division of Functional Materials and Biomaterials , West Pomeranian University of Technology, Szczecin, Faculty of Chemical Technology and Engineering , Al. Piastów 45 , 71-311 Szczecin , Poland
| |
Collapse
|
22
|
“Deceived” Concentrated Immobilized Cells as Biocatalyst for Intensive Bacterial Cellulose Production from Various Sources. Catalysts 2018. [DOI: 10.3390/catal8010033] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
A new biocatalyst in the form of Komagataeibacter xylinum B-12429 cells immobilized in poly(vinyl alcohol) cryogel for production of bacterial cellulose was demonstrated. Normally, the increased bacteria concentration causes an enlarged bacterial cellulose synthesis while cells push the polysaccharide out to pack themselves into this polymer and go into a stasis. Immobilization of cells into the poly(vinyl alcohol) cryogel allowed “deceiving” them: bacteria producing cellulose pushed it out, which further passed through the pores of cryogel matrix and was accumulated in the medium while not covering the cells; hence, the latter were deprived of a possible transition to inactivity and worked on the synthesis of bacterial cellulose even more actively. The repeated use of immobilized cells retaining 100% of their metabolic activity for at least 10 working cycles (60 days) was performed. The immobilized cells produce bacterial cellulose with crystallinity and porosity similar to polysaccharide of free cells, but having improved stiffness and tensile strength. Various media containing sugars and glycerol, based on hydrolysates of renewable biomass sources (aspen, Jerusalem artichoke, rice straw, microalgae) were successfully applied for bacterial cellulose production by immobilized cells, and the level of polysaccharide accumulation was 1.3–1.8-times greater than suspended cells could produce.
Collapse
|
23
|
Dubey S, Singh J, Singh RP. Biotransformation of sweet lime pulp waste into high-quality nanocellulose with an excellent productivity using Komagataeibacter europaeus SGP37 under static intermittent fed-batch cultivation. BIORESOURCE TECHNOLOGY 2018; 247:73-80. [PMID: 28946097 DOI: 10.1016/j.biortech.2017.09.089] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/12/2017] [Accepted: 09/13/2017] [Indexed: 05/11/2023]
Abstract
Herein, sweet lime pulp waste (SLPW) was utilized as a low- or no-cost feedstock for the production of bacterial nanocellulose (BNC) alone and in amalgamation with other nutritional supplements by the isolate K. europaeus SGP37 under static batch and static intermittent fed-batch cultivation. The highest yield (26.2±1.50gL-1) was obtained in the hot water extract of SLPW supplemented with the components of HS medium, which got further boosted to 38±0.85gL-1 as the cultivation strategy was shifted from static batch to static intermittent fed-batch. BNC obtained from various SLPW medium was similar or even superior to that obtained with standard HS medium in terms of its physicochemical properties. The production yields of BNC thus obtained are significantly higher and fit well in terms of industrial scale production.
Collapse
Affiliation(s)
- Swati Dubey
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Jyoti Singh
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - R P Singh
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India.
| |
Collapse
|
24
|
Liu M, Li S, Xie Y, Jia S, Hou Y, Zou Y, Zhong C. Enhanced bacterial cellulose production by Gluconacetobacter xylinus via expression of Vitreoscilla hemoglobin and oxygen tension regulation. Appl Microbiol Biotechnol 2017; 102:1155-1165. [PMID: 29199354 DOI: 10.1007/s00253-017-8680-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 11/23/2017] [Indexed: 10/18/2022]
Abstract
Oxygen plays a key role during bacterial cellulose (BC) biosynthesis by Gluconacetobacter xylinus. In this study, the Vitreoscilla hemoglobin (VHb)-encoding gene vgb, which has been widely applied to improve cell survival during hypoxia, was heterologously expressed in G. xylinus via the pBla-VHb-122 plasmid. G. xylinus and G. xylinus-vgb + were statically cultured under hypoxic (10 and 15% oxygen tension in the gaseous phase), atmospheric (21%), and oxygen-enriched conditions (40 and 80%) to investigate the effect of oxygen on cell growth and BC production. Irrespective of vgb expression, we found that cell density increased with oxygen tension (10-80%) during the exponential growth phase but plateaued to the same value in the stationary phase. In contrast, BC production was found to significantly increase at lower oxygen tensions. In addition, we found that BC production at oxygen tensions of 10 and 15% was 26.5 and 58.6% higher, respectively, in G. xylinus-vgb + than that in G. xylinus. The maximum BC yield and glucose conversion rate, of 4.3 g/L and 184.7 mg/g, respectively, were observed in G. xylinus-vgb + at an oxygen tension of 15%. Finally, BC characterization suggested that hypoxic conditions enhance BC's mass density, Young's modulus, and thermostability, with G. xylinus-vgb + synthesizing softer BC than G. xylinus under hypoxia as a result of a decreased Young's modulus. These results will facilitate the use of static culture for the production of BC.
Collapse
Affiliation(s)
- Miao Liu
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Siqi Li
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Yongzhen Xie
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Shiru Jia
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Ying Hou
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Yang Zou
- Tianjin Jialihe Livestock Group Co., Ltd, Jin Wei Road, Beichen District, Tianjin, 300402, People's Republic of China
| | - Cheng Zhong
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China.
| |
Collapse
|
25
|
Reiniati I, Hrymak AN, Margaritis A. Kinetics of cell growth and crystalline nanocellulose production by Komagataeibacter xylinus. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2017.07.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
26
|
Fijałkowski K, Żywicka A, Drozd R, Kordas M, Rakoczy R. Effect of Gluconacetobacter xylinus cultivation conditions on the selected properties of bacterial cellulose. POLISH JOURNAL OF CHEMICAL TECHNOLOGY 2016. [DOI: 10.1515/pjct-2016-0080] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The aim of the study was to analyze the changes in the parameters of bacterial cultures and bacterial cellulose (BC) synthesized by four reference strains of Gluconacetobacter xylinus during 31-day cultivation in stationary conditions. The study showed that the most visible changes in the analyzed parameters of BC, regardless of the bacterial strain used for their synthesis, were observed in the first 10–14 days of the experiment. It was also revealed, that among parameters showing dependence associated with the particular bacterial strain were the rate and period of BC synthesis, the growth rate of bacteria anchored to the cellulose fibrils, the capacity to absorb water and the water release rate. The results presented in this work may be useful in the selection of optimum culturing conditions and period from the point of view of good efficiency of the cellulose synthesis process.
Collapse
Affiliation(s)
- Karol Fijałkowski
- West Pomeranian University of Technology, Szczecin, Department of Immunology, Microbiology and Physiological Chemistry, al. Piastów 45, 70-311 Szczecin, Poland
| | - Anna Żywicka
- West Pomeranian University of Technology, Szczecin, Department of Immunology, Microbiology and Physiological Chemistry, al. Piastów 45, 70-311 Szczecin, Poland
| | - Radosław Drozd
- West Pomeranian University of Technology, Szczecin, Department of Immunology, Microbiology and Physiological Chemistry, al. Piastów 45, 70-311 Szczecin, Poland
| | - Marian Kordas
- West Pomeranian University of Technology, Szczecin, Institute of Chemical Engineering and Environmental Protection Processes, Faculty of Chemical Technology and Engineering, al. Piastów 42, 70-311 Szczecin, Poland
| | - Rafał Rakoczy
- West Pomeranian University of Technology, Szczecin, Institute of Chemical Engineering and Environmental Protection Processes, Faculty of Chemical Technology and Engineering, al. Piastów 42, 70-311 Szczecin, Poland
| |
Collapse
|
27
|
Wet and Dry Forms of Bacterial Cellulose Synthetized by Different Strains of Gluconacetobacter xylinus as Carriers for Yeast Immobilization. Appl Biochem Biotechnol 2016; 180:805-816. [PMID: 27188971 DOI: 10.1007/s12010-016-2134-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 05/10/2016] [Indexed: 10/21/2022]
Abstract
The present study aimed to explore and describe the properties of bacterial cellulose (BC) membranes obtained from three different strains of Gluconacetobacter xylinus for 72, 120, and 168 h, used as a carrier support for the immobilization of Saccharomyces cerevisiae. The experiments also included the analysis of glucose consumption and alcohol production during the fermentation process displayed by yeasts immobilized on the BC surface. The results of the present study demonstrate that the number of immobilized yeast cells is dependent on the type of cellulose-synthesizing strain, cellulose form, and duration of its synthesis. The BC in the form of wet membranes obtained after 3 days of synthesis displayed the most favorable properties as a carrier for yeast immobilization. The immobilization of yeast cells on BC, regardless of its form, increased the amount of the produced alcohol as compared to free cells. The yeast cells immobilized in BC were able to multiply on its surface during the fermentation process.
Collapse
|
28
|
Increased yield and selected properties of bacterial cellulose exposed to different modes of a rotating magnetic field. Eng Life Sci 2016. [DOI: 10.1002/elsc.201500151] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
29
|
Fijałkowski K, Peitler D, Rakoczy R, Żywicka A. Survival of probiotic lactic acid bacteria immobilized in different forms of bacterial cellulose in simulated gastric juices and bile salt solution. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2015.12.038] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
30
|
Zhang P, Chen L, Zhang Q, Hong FF. Using In situ Dynamic Cultures to Rapidly Biofabricate Fabric-Reinforced Composites of Chitosan/Bacterial Nanocellulose for Antibacterial Wound Dressings. Front Microbiol 2016; 7:260. [PMID: 26973634 PMCID: PMC4777949 DOI: 10.3389/fmicb.2016.00260] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 02/16/2016] [Indexed: 12/01/2022] Open
Abstract
Bacterial nano-cellulose (BNC) is considered to possess incredible potential in biomedical applications due to its innate unrivaled nano-fibrillar structure and versatile properties. However, its use is largely restricted by inefficient production and by insufficient strength when it is in a highly swollen state. In this study, a fabric skeleton reinforced chitosan (CS)/BNC hydrogel with high mechanical reliability and antibacterial activity was fabricated by using an efficient dynamic culture that could reserve the nano-fibrillar structure. By adding CS in culture media to 0.25-0.75% (w/v) during bacterial cultivation, the CS/BNC composite hydrogel was biosynthesized in situ on a rotating drum composed of fabrics. With the proposed method, BNC biosynthesis became less sensitive to the adverse antibacterial effects of CS and the production time of the composite hydrogel with desirable thickness could be halved from 10 to 5 days as compared to the conventional static cultures. Although, its concentration was low in the medium, CS accounted for more than 38% of the CS/BNC dry weight. FE-SEM observation confirmed conservation of the nano-fibrillar networks and covering of CS on BNC. ATR-FTIR showed a decrease in the degree of intra-molecular hydrogen bonding and water absorption capacity was improved after compositing with CS. The fabric-reinforced CS/BNC composite exhibited bacteriostatic properties against Escherichia coli and Staphylococcus aureus and significantly improved mechanical properties as compared to the BNC sheets from static culture. In summary, the fabric-reinforced CS/BNC composite constitutes a desired candidate for advanced wound dressings. From another perspective, coating of BNC or CS/BNC could upgrade the conventional wound dressings made of cotton gauze to reduce pain during wound healing, especially for burn patients.
Collapse
Affiliation(s)
- Peng Zhang
- Group of Microbiological Engineering and Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua UniversityShanghai, China
| | - Lin Chen
- Group of Microbiological Engineering and Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua UniversityShanghai, China
| | - Qingsong Zhang
- Group of Microbiological Engineering and Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua UniversityShanghai, China
| | - Feng F. Hong
- Group of Microbiological Engineering and Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua UniversityShanghai, China
- Key Laboratory of High Performance Fibers and Products, Ministry of Education, Donghua UniversityShanghai, China
| |
Collapse
|
31
|
Abstract
The aim of the study was to assess the influence of rotating magnetic field (RMF) on the morphology, physicochemical properties, and the water holding capacity of bacterial cellulose (BC) synthetized by Gluconacetobacter xylinus. The cultures of G. xylinus were exposed to RMF of frequency that equals 50 Hz and magnetic induction 34 mT for 3, 5, and 7 days during cultivation at 28°C in the customized RMF exposure system. It was revealed that BC exposed for 3 days to RMF exhibited the highest water retention capacity as compared to the samples exposed for 5 and 7 days. The observation was confirmed for both the control and RMF exposed BC. It was proved that the BC exposed samples showed up to 26% higher water retention capacity as compared to the control samples. These samples also required the highest temperature to release the water molecules. Such findings agreed with the observation via SEM examination which revealed that the structure of BC synthesized for 7 days was more compacted than the sample exposed to RMF for 3 days. Furthermore, the analysis of 2D correlation of Fourier transform infrared spectra demonstrated the impact of RMF exposure on the dynamics of BC microfibers crystallinity formation.
Collapse
|
32
|
Fijałkowski K, Żywicka A, Drozd R, Niemczyk A, Junka AF, Peitler D, Kordas M, Konopacki M, Szymczyk P, Fray ME, Rakoczy R. Modification of bacterial cellulose through exposure to the rotating magnetic field. Carbohydr Polym 2015; 133:52-60. [DOI: 10.1016/j.carbpol.2015.07.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 06/16/2015] [Accepted: 07/07/2015] [Indexed: 10/23/2022]
|
33
|
Wang B, Qi GX, Huang C, Yang XY, Zhang HR, Luo J, Chen XF, Xiong L, Chen XD. Preparation of Bacterial Cellulose/Inorganic Gel of Bentonite Composite by In Situ Modification. Indian J Microbiol 2015; 56:72-9. [PMID: 26843699 DOI: 10.1007/s12088-015-0550-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 08/26/2015] [Indexed: 11/28/2022] Open
Abstract
To evaluate the possibility of Bacterial cellulose/Inorganic Gel of Bentonite (BC/IGB) composite production using in situ method, the BC/IGB composite was successfully produced by in situ modification of BC in both HS medium and corncob hydrolysate. The results showed that the BC/IGB composite obtained in HS medium (one classical medium for BC production) had a higher water holding capacity, but the water retention capacity of the BC/IGB composite obtained in corncob hydrolysate was better. The performance of BC/IGB composite depended on the environment of in situ modification. Using different media showed significant influence on the sugar utilization and BC yield. In addition, BC/IGB composite produced by in situ method was compared with that produced by ex situ method, and the results shows that water holding capacity of BC/IGB composite obtained through in situ method was better. XRD results showed the crystallinity of BC/IGB composite related little to its performance as water absorbent. Overall, in situ modification is appropriate for further production of BC composite and other clay materials.
Collapse
Affiliation(s)
- Bo Wang
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, No.2 Nengyuan Road, Tianhe District, Guangzhou, 510640 China ; University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Gao-Xiang Qi
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, No.2 Nengyuan Road, Tianhe District, Guangzhou, 510640 China ; University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Chao Huang
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, No.2 Nengyuan Road, Tianhe District, Guangzhou, 510640 China ; R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Xuyi, 211700 People's Republic of China
| | - Xiao-Yan Yang
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, No.2 Nengyuan Road, Tianhe District, Guangzhou, 510640 China ; University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Hai-Rong Zhang
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, No.2 Nengyuan Road, Tianhe District, Guangzhou, 510640 China ; R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Xuyi, 211700 People's Republic of China
| | - Jun Luo
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, No.2 Nengyuan Road, Tianhe District, Guangzhou, 510640 China ; R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Xuyi, 211700 People's Republic of China
| | - Xue-Fang Chen
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, No.2 Nengyuan Road, Tianhe District, Guangzhou, 510640 China ; R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Xuyi, 211700 People's Republic of China
| | - Lian Xiong
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, No.2 Nengyuan Road, Tianhe District, Guangzhou, 510640 China ; R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Xuyi, 211700 People's Republic of China
| | - Xin-De Chen
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, No.2 Nengyuan Road, Tianhe District, Guangzhou, 510640 China ; R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Xuyi, 211700 People's Republic of China
| |
Collapse
|
34
|
Neera, Ramana KV, Batra HV. Occurrence of Cellulose-Producing Gluconacetobacter spp. in Fruit Samples and Kombucha Tea, and Production of the Biopolymer. Appl Biochem Biotechnol 2015; 176:1162-73. [DOI: 10.1007/s12010-015-1637-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Accepted: 04/21/2015] [Indexed: 10/23/2022]
|
35
|
Abstract
Microbial cellulose, an exopolysaccharide produced by bacteria, has unique structural and mechanical properties and is highly pure compared to plant cellulose. Present study represents isolation, identification, and screening of cellulose producing bacteria and further process optimization. Isolation of thirty cellulose producers was carried out from natural sources like rotten fruits and rotten vegetables. The bacterial isolates obtained from rotten pomegranate, rotten sweet potato, and rotten potato were identified asGluconacetobactersp. RV28,Enterobactersp. RV11, andPseudomonassp. RV14 through morphological and biochemical analysis. Optimization studies were conducted for process parameters like inoculum density, temperature, pH, agitation, and carbon and nitrogen sources usingGluconacetobactersp. RV28. The strain produced 4.7 g/L of cellulose at optimum growth conditions of temperature (30°C), pH (6.0), sucrose (2%), peptone (0.5%), and inoculum density (5%). Characterization of microbial cellulose was done by scanning electron microscopy (SEM).
Collapse
|
36
|
Lee KY, Buldum G, Mantalaris A, Bismarck A. More Than Meets the Eye in Bacterial Cellulose: Biosynthesis, Bioprocessing, and Applications in Advanced Fiber Composites. Macromol Biosci 2013; 14:10-32. [DOI: 10.1002/mabi.201300298] [Citation(s) in RCA: 270] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Koon-Yang Lee
- Polymer and Composite Engineering (PaCE) Group, Faculty of Chemistry, Institute of Materials Chemistry and Research; University of Vienna; Währinger Straβe 42 A-1090 Vienna Austria
- Polymer and Composite Engineering (PaCE) Group, Department of Chemical Engineering; Imperial College London, South Kensington Campus; SW7 2AZ London UK
| | - Gizem Buldum
- Polymer and Composite Engineering (PaCE) Group, Department of Chemical Engineering; Imperial College London, South Kensington Campus; SW7 2AZ London UK
- Biological System Engineering Laboratory, Department of Chemical Engineering; Imperial College London, South Kensington Campus; SW7 2AZ London UK
| | - Athanasios Mantalaris
- Biological System Engineering Laboratory, Department of Chemical Engineering; Imperial College London, South Kensington Campus; SW7 2AZ London UK
| | - Alexander Bismarck
- Polymer and Composite Engineering (PaCE) Group, Faculty of Chemistry, Institute of Materials Chemistry and Research; University of Vienna; Währinger Straβe 42 A-1090 Vienna Austria
- Polymer and Composite Engineering (PaCE) Group, Department of Chemical Engineering; Imperial College London, South Kensington Campus; SW7 2AZ London UK
| |
Collapse
|
37
|
Production of microbial cellulose by a bacterium isolated from fruit. Appl Biochem Biotechnol 2012; 167:1157-71. [PMID: 22391690 DOI: 10.1007/s12010-012-9595-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Accepted: 01/31/2012] [Indexed: 10/28/2022]
Abstract
This study presents the production of bacterial cellulose (BC) by a bacterium isolated from a rotten fruit and its process optimization. Here, isolation and screening of potent cellulose producers were carried out from different natural sources, viz., soil, rotten fruits, and vegetables and vinegar. A total of 200 bacterial isolates were obtained, which were screened for cellulose production using Hestrin-Schramm medium. A novel and potent cellulose-producing bacterium was newly isolated from a rotten fruit and identified as Gluconacetobacter sp. F6 through 16S ribosomal DNA sequencing and morphological, cultural, and biochemical characteristics. After optimization of culture conditions, including pH, temperature, agitation, carbon/nitrogen sources, and inducers, the BC production was greatly increased from 0.52 to 4.5 g/l (8.65-fold increase). The optimal culture medium contained 1% (w/v) glucose, 1.5% (w/v) yeast extract, 0.5% (w/v) peptone, 0.27% (w/v) disodium hydrogen phosphate, 0.115% (w/v) citric acid, and 0.4% (w/v) ethanol. BC produced was analyzed for the presence of cellulose fibrils by epiflourescent microscopy using Calcofluor white stain and scanning electron microscopy and confirmed by NMR. There are very scanty reports about the optimization of BC production by bacteria isolated from rotten fruits.
Collapse
|
38
|
Zeng X, Small DP, Wan W. Statistical optimization of culture conditions for bacterial cellulose production by Acetobacter xylinum BPR 2001 from maple syrup. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.02.034] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
39
|
|
40
|
|
41
|
Comparison of Solution-State Properties of Cellulose Dissolved in NaOH/Water and in Ionic Liquid (EMIMAc). ACTA ACUST UNITED AC 2010. [DOI: 10.1021/bk-2010-1033.ch010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
42
|
|
43
|
Gericke M, Schlufter K, Liebert T, Heinze T, Budtova T. Rheological Properties of Cellulose/Ionic Liquid Solutions: From Dilute to Concentrated States. Biomacromolecules 2009; 10:1188-94. [DOI: 10.1021/bm801430x] [Citation(s) in RCA: 205] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martin Gericke
- Mines ParisTech, Centre de Mise en Forme des Matèriaux - CEMEF, UMR CNRS/Ecole des Mines de Paris 7635, BP 207, 06904 Sophia-Antipolis, France, Centre of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstraβe 10, D-07743 Jena, Germany, and Research Centre for Medical Technology and Biotechnology GmbH, Geranienweg 7, D-99947 Bad Langensalza, Germany
| | - Kerstin Schlufter
- Mines ParisTech, Centre de Mise en Forme des Matèriaux - CEMEF, UMR CNRS/Ecole des Mines de Paris 7635, BP 207, 06904 Sophia-Antipolis, France, Centre of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstraβe 10, D-07743 Jena, Germany, and Research Centre for Medical Technology and Biotechnology GmbH, Geranienweg 7, D-99947 Bad Langensalza, Germany
| | - Tim Liebert
- Mines ParisTech, Centre de Mise en Forme des Matèriaux - CEMEF, UMR CNRS/Ecole des Mines de Paris 7635, BP 207, 06904 Sophia-Antipolis, France, Centre of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstraβe 10, D-07743 Jena, Germany, and Research Centre for Medical Technology and Biotechnology GmbH, Geranienweg 7, D-99947 Bad Langensalza, Germany
| | - Thomas Heinze
- Mines ParisTech, Centre de Mise en Forme des Matèriaux - CEMEF, UMR CNRS/Ecole des Mines de Paris 7635, BP 207, 06904 Sophia-Antipolis, France, Centre of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstraβe 10, D-07743 Jena, Germany, and Research Centre for Medical Technology and Biotechnology GmbH, Geranienweg 7, D-99947 Bad Langensalza, Germany
| | - Tatiana Budtova
- Mines ParisTech, Centre de Mise en Forme des Matèriaux - CEMEF, UMR CNRS/Ecole des Mines de Paris 7635, BP 207, 06904 Sophia-Antipolis, France, Centre of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstraβe 10, D-07743 Jena, Germany, and Research Centre for Medical Technology and Biotechnology GmbH, Geranienweg 7, D-99947 Bad Langensalza, Germany
| |
Collapse
|
44
|
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]
|
45
|
Hornung M, Ludwig M, Schmauder H. Optimizing the Production of Bacterial Cellulose in Surface Culture: A Novel Aerosol Bioreactor Working on a Fed Batch Principle (Part 3). Eng Life Sci 2007. [DOI: 10.1002/elsc.200620164] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|
46
|
Hornung M, Ludwig M, Gerrard AM, Schmauder HP. Optimizing the Production of Bacterial Cellulose in Surface Culture: Evaluation of Product Movement Influences on the Bioreaction (Part 2). Eng Life Sci 2006. [DOI: 10.1002/elsc.200620163] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|