1
|
Hamal EK, Alfassi G, Antonenko M, Rein DM, Cohen Y. Cellulose-coated emulsion micro-particles self-assemble with yeasts for cellulose bio-conversion. Sci Rep 2024; 14:5499. [PMID: 38448579 PMCID: PMC10918086 DOI: 10.1038/s41598-024-56204-0] [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: 11/11/2023] [Accepted: 03/04/2024] [Indexed: 03/08/2024] Open
Abstract
In the quest for alternative renewable energy sources, a new self-assembled hybrid configuration of cellulose-coated oil-in-water emulsion particles with yeast was formed. In this research, the addition of yeasts (S. cerevisiae) to the micro-particle emulsion revealed a novel self-assembly configuration in which the yeast cell is connected to surrounding cellulose-coated micro-particles. This hybrid configuration may enhance the simultaneous saccharification and fermentation process by substrate channeling. Glucose produced by hydrolysis of the cellulose shells coating the micro-particles, catalyzed by cellulytic enzymes attached to their coating, is directly fermented to ethanol by the yeasts to which the particles are connected. The results indicate ethanol yield of 62%, based on the cellulose content of the emulsion, achieved by the yeast/micro-particle hybrids. The functionality of this hybrid configuration is expected to serve as a micro-reactor for a cascade of biochemical reactions in a "one-pot" consolidated process transforming cellulose to valuable chemicals, such as biodiesel.
Collapse
Affiliation(s)
- Ester Korkus Hamal
- Department of Chemical Engineering, Technion - Israel Institute of Technology, 3200003, Haifa, Israel.
| | - Gilad Alfassi
- Department of Biotechnology Engineering, Braude College of Engineering, Karmiel, Israel
| | - Margarita Antonenko
- Department of Chemical Engineering, Technion - Israel Institute of Technology, 3200003, Haifa, Israel
| | - Dmitry M Rein
- Department of Chemical Engineering, Technion - Israel Institute of Technology, 3200003, Haifa, Israel
| | - Yachin Cohen
- Department of Chemical Engineering, Technion - Israel Institute of Technology, 3200003, Haifa, Israel
| |
Collapse
|
2
|
Schommer VA, Nazari MT, Melara F, Braun JCA, Rempel A, Dos Santos LF, Ferrari V, Colla LM, Dettmer A, Piccin JS. Techniques and mechanisms of bacteria immobilization on biochar for further environmental and agricultural applications. Microbiol Res 2024; 278:127534. [PMID: 37944206 DOI: 10.1016/j.micres.2023.127534] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/02/2023] [Accepted: 10/19/2023] [Indexed: 11/12/2023]
Abstract
Bacteria immobilization on biochar is a promising approach to achieve high concentration and stability of microbial cells for several applications. The present review addressed the techniques utilized for bacteria immobilization on biochar, discussing the mechanisms involved in this process, as well as the further utilization in bioremediation and agriculture. This article presents three immobilization techniques, which vary according to their procedures and conditions, including cell growth, adsorption, and adaptation. The mechanisms for cell immobilization are primarily adsorption and biofilm formation on biochar. The favorable characteristics of biochar immobilization depend on the pyrolysis methods, raw materials, and properties of biochar, such as surface area, pore size, pH, zeta potential, hydrophobicity, functional groups, and nutrients. Scanning electron microscope (SEM) and colony forming unit (CFU) are the analyses commonly carried out to verify the efficiency of bacteria immobilization. The benefits of applying biochar-immobilized bacteria include soil decontamination and quality improvement, which can improve plant growth and crop yield. Therefore, this emerging technology represents a promising solution for environmental and agricultural purposes. However, it is important to evaluate the potential adverse impacts on native microbiota by introducing exogenous microorganisms.
Collapse
Affiliation(s)
- Vera Analise Schommer
- Graduate Program in Civil and Environmental Engineering (PPGEng), University of Passo Fundo (UPF), Passo Fundo, RS, Brazil.
| | - Mateus Torres Nazari
- Graduate Program in Civil and Environmental Engineering (PPGEng), University of Passo Fundo (UPF), Passo Fundo, RS, Brazil.
| | - Flávia Melara
- Graduate Program in Civil and Environmental Engineering (PPGEng), University of Passo Fundo (UPF), Passo Fundo, RS, Brazil
| | - Julia Catiane Arenhart Braun
- Graduate Program in Civil and Environmental Engineering (PPGEng), University of Passo Fundo (UPF), Passo Fundo, RS, Brazil
| | - Alan Rempel
- Graduate Program in Civil and Environmental Engineering (PPGEng), University of Passo Fundo (UPF), Passo Fundo, RS, Brazil
| | - Lara Franco Dos Santos
- Graduate Program in Mining, Metallurgical and Materials Engineering (PPGE3M), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Valdecir Ferrari
- Graduate Program in Bioexperimentation, University of Passo Fundo (UPF), Passo Fundo, RS, Brazil
| | - Luciane Maria Colla
- Graduate Program in Civil and Environmental Engineering (PPGEng), University of Passo Fundo (UPF), Passo Fundo, RS, Brazil.
| | - Aline Dettmer
- Graduate Program in Food Science and Technology (PPGCTA), University of Passo Fundo (UPF), Passo Fundo, RS, Brazil
| | - Jeferson Steffanello Piccin
- Graduate Program in Civil and Environmental Engineering (PPGEng), University of Passo Fundo (UPF), Passo Fundo, RS, Brazil
| |
Collapse
|
3
|
Lappa IK, Kachrimanidou V, Alexandri M, Papadaki A, Kopsahelis N. Novel Probiotic/Bacterial Cellulose Biocatalyst for the Development of Functional Dairy Beverage. Foods 2022; 11:foods11172586. [PMID: 36076772 PMCID: PMC9455237 DOI: 10.3390/foods11172586] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/18/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
The development of innovative functional products with potential health benefits, under the concept of bio-economy, is flourishing. This study undertook an evaluation of non-dairy lactobacilli Lactiplantibacillus pentosus B329 and Lactiplantibacillus plantarum 820 as “ready to use” starter cultures. Lactic acid bacteria (LAB) cultures were evaluated for their fermentation efficiency, before and after freeze-drying, using cheese whey (CW) as a fermentation substrate and subsequent immobilization on bacteria cellulose (BC) to produce a novel biocatalyst. The biocatalyst was applied in functional sour milk production and compared with free cells via the assessment of physicochemical and microbiological properties and sensory evaluation. Evidently, LAB strains exhibited high fermentative activity before and after freeze-drying. Results of a 5-month storage stability test showed that viability was 19% enhanced by immobilization on BC, supporting the concept of “ready to use” cultures for the production of fermented beverages. Likewise, sour milk produced by the BC biocatalyst presented higher organoleptic scores, compared to the free cells case, whereas immobilization on BC enhanced probiotic viability during post-fermentation storage (4 °C, 28 days). The obtained high viability (>107 log cfu/g) demonstrated the efficacy of the proposed bioprocess for the production of functional/probiotic-rich beverages. Ultimately, this work presents a consolidated scheme that includes the advantages and the cooperative effect of probiotic LAB strains combined with a functional biopolymer (BC) towards the formulation of novel functional products that coincide with the pillars of food systems sustainability.
Collapse
|
4
|
Zhantlessova S, Savitskaya I, Kistaubayeva A, Ignatova L, Talipova A, Pogrebnjak A, Digel I. Advanced "Green" Prebiotic Composite of Bacterial Cellulose/Pullulan Based on Synthetic Biology-Powered Microbial Coculture Strategy. Polymers (Basel) 2022; 14:3224. [PMID: 35956737 PMCID: PMC9371109 DOI: 10.3390/polym14153224] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/02/2022] [Accepted: 08/02/2022] [Indexed: 01/29/2023] Open
Abstract
Bacterial cellulose (BC) is a biopolymer produced by different microorganisms, but in biotechnological practice, Komagataeibacter xylinus is used. The micro- and nanofibrillar structure of BC, which forms many different-sized pores, creates prerequisites for the introduction of other polymers into it, including those synthesized by other microorganisms. The study aims to develop a cocultivation system of BC and prebiotic producers to obtain BC-based composite material with prebiotic activity. In this study, pullulan (PUL) was found to stimulate the growth of the probiotic strain Lactobacillus rhamnosus GG better than the other microbial polysaccharides gellan and xanthan. BC/PUL biocomposite with prebiotic properties was obtained by cocultivation of Komagataeibacter xylinus and Aureobasidium pullulans, BC and PUL producers respectively, on molasses medium. The inclusion of PUL in BC is proved gravimetrically by scanning electron microscopy and by Fourier transformed infrared spectroscopy. Cocultivation demonstrated a composite effect on the aggregation and binding of BC fibers, which led to a significant improvement in mechanical properties. The developed approach for "grafting" of prebiotic activity on BC allows preparation of environmentally friendly composites of better quality.
Collapse
Affiliation(s)
- Sirina Zhantlessova
- Department of Biotechnology, Al-Farabi Kazakh National University, 71 Al-Farabi Avenue, Almaty 050040, Kazakhstan
| | - Irina Savitskaya
- Department of Biotechnology, Al-Farabi Kazakh National University, 71 Al-Farabi Avenue, Almaty 050040, Kazakhstan
| | - Aida Kistaubayeva
- Department of Biotechnology, Al-Farabi Kazakh National University, 71 Al-Farabi Avenue, Almaty 050040, Kazakhstan
| | - Ludmila Ignatova
- Department of Biotechnology, Al-Farabi Kazakh National University, 71 Al-Farabi Avenue, Almaty 050040, Kazakhstan
| | - Aizhan Talipova
- Department of Biotechnology, Al-Farabi Kazakh National University, 71 Al-Farabi Avenue, Almaty 050040, Kazakhstan
| | - Alexander Pogrebnjak
- Department of Nanoelectronics and Surface Modification, Sumy State University, Ryms’koho-Korsakova St. 2, 40000 Sumy, Ukraine
| | - Ilya Digel
- Institute for Bioengineering, Aachen University of Applied Sciences, Heinrich-Mußmann-Straße 1, 52428 Jülich, Germany
| |
Collapse
|
5
|
Tarasov SE, Plekhanova YV, Kitova AE, Bykov AG, Machulin AV, Kolesov VV, Klenova NA, Revin VV, Ponamoreva ON, Reshetilov AN. Bacterial Cellulose as a Matrix for Microorganisms in Bioelectrocatalytic Systems. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822040159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
Empirical Modeling and Optimization by Active Central Composite Rotatable Design: Brilliant Red HE-3B Dye Biosorption onto Residual Yeast Biomass-Based Biosorbents. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12136377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
(1) Introduction: Natural polymers can be successfully used as a matrix to immobilize residual yeast-based biomass in a form that is easy to handle and can be used as biosorbent capable of removing persistent polluting species from different aqueous systems such as reactive azo dyes. (2) Experimental: Two types of new biosorbents were prepared based on residual Saccharomyces pastorianus yeast biomass immobilized in sodium alginate (using two different practice techniques) and studied in the biosorption process of reactive Brilliant Red HE-3B dye using certain experimental planning matrices according to the active central composite rotatable design of 23 order. The experimental data obtained under certain selected working conditions were processed considering the influence of three independent variables (biosorbent concentration—X1, initial dye concentration—X2 and biosorption time—X3) onto the dependent variable (Y = f(X1,X2,X3)) expressing the performance of reactive dye biosorption onto the new prepared biosorbents (i.e., dye removal degree, %). (3) Results: Two mathematical models were proposed for each prepared biosorbent. The maximum dye removal was 52.878% (Y1) when 18 g/L biosorbent 1 (micro-encapsulated form) was applied in 70 mg/L dye-containing solution for at least 8 h, and 75.338% (Y2) for 22.109 g/L biosorbent 2 (immobilized form) in 48.49 mg/L dye-containing solution for at least 8.799 h. (4) Discussion: The optimal values achieved for the two tested biosorbents were compared, and we investigated the possibility of using this residual biomass as a biosorbent for the reactive dye removal, supported by the experimental results with the recommended variation domains of each influencing variable. The results are sufficient to permit performing dye removal higher than 50% (biosorbent 1) or 70% (biosorbent 2), working with more than 18–22 g/L biosorbent after at least 8 h (as an exchange at work). (5) Conclusions: The proposed models are in good agreement with the experimental data and permit the prediction of dye biosorption behavior onto the experimental variation domain of each independent variable.
Collapse
|
7
|
In Vitro Cytotoxicity, Colonisation by Fibroblasts and Antimicrobial Properties of Surgical Meshes Coated with Bacterial Cellulose. Int J Mol Sci 2022; 23:ijms23094835. [PMID: 35563224 PMCID: PMC9105287 DOI: 10.3390/ijms23094835] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/22/2022] [Accepted: 04/25/2022] [Indexed: 02/04/2023] Open
Abstract
Hernia repairs are the most common abdominal wall elective procedures performed by general surgeons. Hernia-related postoperative infective complications occur with 10% frequency. To counteract the risk of infection emergence, the development of effective, biocompatible and antimicrobial mesh adjuvants is required. Therefore, the aim of our in vitro investigation was to evaluate the suitability of bacterial cellulose (BC) polymer coupled with gentamicin (GM) antibiotic as an absorbent layer of surgical mesh. Our research included the assessment of GM-BC-modified meshes’ cytotoxicity against fibroblasts ATCC CCL-1 and a 60-day duration cell colonisation measurement. The obtained results showed no cytotoxic effect of modified meshes. The quantified fibroblast cells levels resembled a bimodal distribution depending on the time of culturing and the type of mesh applied. The measured GM minimal inhibitory concentration was 0.47 µg/mL. Results obtained in the modified disc-diffusion method showed that GM-BC-modified meshes inhibited bacterial growth more effectively than non-coated meshes. The results of our study indicate that BC-modified hernia meshes, fortified with appropriate antimicrobial, may be applied as effective implants in hernia surgery, preventing risk of infection occurrence and providing a high level of biocompatibility with regard to fibroblast cells.
Collapse
|
8
|
Boura K, Dima A, Nigam PS, Panagopoulos V, Kanellaki M, Koutinas A. A critical review for advances on industrialization of immobilized cell Bioreactors: Economic evaluation on cellulose hydrolysis for PHB production. BIORESOURCE TECHNOLOGY 2022; 349:126757. [PMID: 35077811 DOI: 10.1016/j.biortech.2022.126757] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/18/2022] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
Advances such as cell-on-cell immobilization, multi-stage fixed bed tower (MFBT) bioreactor, promotional effect on fermentation, extremely low temperature fermentation, freeze dried immobilized cells in two-layer fermentation, non-engineered cell factories, and those of recent papers are demonstrated. Studies for possible industrialization of ICB, considering production capacity, low temperatures fermentations, added value products and bulk chemical production are studied. Immobilized cell bioreactors (ICB) using cellulose nano-biotechnology and engineered cells are reported. The development of a novel ICB with recent advances on high added value products and conceptual research areas for industrialization of ICB is proposed. The isolation of engineered flocculant cells leads to a single tank ICB. The concept of cell factories without GMO is a new research area. The conceptual development of multi-stage fixed bed tower membrane (MFBTM) ICB is discussed. Finally, feasible process design and technoeconomic analysis of cellulose hydrolysis using ICB are studied for polyhydroxybutyrate (PHB) production.
Collapse
Affiliation(s)
| | - Agapi Dima
- Department of Chemistry, University of Patras, 26504 Patras, Greece
| | - Poonam S Nigam
- Biomedical Sciences Research Institute, Ulster University, Coleraine, Northern Ireland, UK
| | | | - Maria Kanellaki
- Department of Chemistry, University of Patras, 26504 Patras, Greece
| | | |
Collapse
|
9
|
Zielińska S, Matkowski A, Dydak K, Czerwińska ME, Dziągwa-Becker M, Kucharski M, Wójciak M, Sowa I, Plińska S, Fijałkowski K, Ciecholewska-Juśko D, Broda M, Gorczyca D, Junka A. Bacterial Nanocellulose Fortified with Antimicrobial and Anti-Inflammatory Natural Products from Chelidonium majus Plant Cell Cultures. MATERIALS 2021; 15:ma15010016. [PMID: 35009165 PMCID: PMC8746069 DOI: 10.3390/ma15010016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 11/16/2022]
Abstract
In this work we developed a bi-functional Bacterial-Nano-Cellulose (BNC) carrier system for cell cultures of Chelidonium majus-a medicinal plant producing antimicrobial compounds. The porous BNC was biosynthesized for 3, 5 or 7 days by the non-pathogenic Komagataeibacter xylinus bacteria and used in three forms: (1) Without removal of K. xylinus cells, (2) partially cleaned up from the remaining K. xylinus cells using water washing and (3) fully purified with NaOH leaving no bacterial cells remains. The suspended C. majus cells were inoculated on the BNC pieces in liquid medium and the functionalized BNC was harvested and subjected to scanning electron microscopy observation and analyzed for the content of C. majus metabolites as well as to antimicrobial assays and tested for potential proinflammatory irritating activity in human neutrophils. The highest content and the most complex composition of pharmacologically active substances was found in 3-day-old, unpurified BNC, which was tested for its bioactivity. The assays based on the IL-1β, IL-8 and TNF-α secretion in an in vitro model showed an anti-inflammatory effect of this particular biomatrix. Moreover, 3-day-old-BNC displayed antimicrobial and antibiofilm activity against Staphylococcus aureus, Pseudomonas aeruginosa and Candida albicans. The results of the research indicated a possible application of such modified composites, against microbial pathogens, especially in local surface infections, where plant metabolite-enriched BNC may be used as the occlusive dressing.
Collapse
Affiliation(s)
- Sylwia Zielińska
- Department of Pharmaceutical Biology and Biotechnology, Division of Pharmaceutical Biotechnology, Wroclaw Medical University, 50-556 Wroclaw, Poland;
| | - Adam Matkowski
- Department of Pharmaceutical Biology and Biotechnology, Division of Pharmaceutical Biology and Botany, Wroclaw Medical University, 50-556 Wroclaw, Poland
- Correspondence: ; Tel.: +48-717-840-498
| | - Karolina Dydak
- Pharmaceutical Microbiology and Parasitology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (K.D.); (A.J.)
| | - Monika Ewa Czerwińska
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warszawa, Poland;
- Centre for Preclinical Research, Medical University of Warsaw, 1B Banacha Street, 02-097 Warsaw, Poland
| | - Magdalena Dziągwa-Becker
- Department of Weed Science and Tillage Systems, Institute of Soil Science and Plant Cultivation State Research Institute, 50-540 Wrocław, Poland; (M.D.-B.); (M.K.)
| | - Mariusz Kucharski
- Department of Weed Science and Tillage Systems, Institute of Soil Science and Plant Cultivation State Research Institute, 50-540 Wrocław, Poland; (M.D.-B.); (M.K.)
| | - Magdalena Wójciak
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland; (M.W.); (I.S.)
| | - Ireneusz Sowa
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland; (M.W.); (I.S.)
| | - Stanisława Plińska
- Department of Inorganic Chemistry, Wroclaw Medical University, 50-556 Wrocław, Poland;
| | - Karol Fijałkowski
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, 70-311 Szczecin, Poland; (K.F.); (D.C.-J.); (M.B.)
| | - Daria Ciecholewska-Juśko
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, 70-311 Szczecin, Poland; (K.F.); (D.C.-J.); (M.B.)
| | - Michał Broda
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, 70-311 Szczecin, Poland; (K.F.); (D.C.-J.); (M.B.)
- Pomeranian-Masurian Potato Breeding Company, 76-024 Strzekęcino, Poland
| | - Damian Gorczyca
- Faculty of Medicine, Lazarski University, 02-662 Warszawa, Poland;
| | - Adam Junka
- Pharmaceutical Microbiology and Parasitology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (K.D.); (A.J.)
| |
Collapse
|
10
|
A Comprehensive Bioprocessing Approach to Foster Cheese Whey Valorization: On-Site β-Galactosidase Secretion for Lactose Hydrolysis and Sequential Bacterial Cellulose Production. FERMENTATION-BASEL 2021. [DOI: 10.3390/fermentation7030184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Cheese whey (CW) constitutes a dairy industry by-product, with considerable polluting impact, related mostly with lactose. Numerous bioprocessing approaches have been suggested for lactose utilization, however, full exploitation is hindered by strain specificity for lactose consumption, entailing a confined range of end-products. Thus, we developed a CW valorization process generating high added-value products (crude enzymes, nutrient supplements, biopolymers). First, the ability of Aspergillus awamori to secrete β-galactosidase was studied under several conditions during solid-state fermentation (SSF). Maximum enzyme activity (148 U/g) was obtained at 70% initial moisture content after three days. Crude enzymatic extracts were further implemented to hydrolyze CW lactose, assessing the effect of hydrolysis time, temperature and initial enzymatic activity. Complete lactose hydrolysis was obtained after 36 h, using 15 U/mL initial enzymatic activity. Subsequently, submerged fermentations were performed with the produced hydrolysates as onset feedstocks to produce bacterial cellulose (5.6–7 g/L). Our findings indicate a novel approach to valorize CW via the production of crude enzymes and lactose hydrolysis, aiming to unfold the output potential of intermediate product formation and end-product applications. Likewise, this study generated a bio-based material to be further introduced in novel food formulations, elaborating and conforming with the basic pillars of circular economy.
Collapse
|
11
|
Blaga AC, Zaharia C, Suteu D. Polysaccharides as Support for Microbial Biomass-Based Adsorbents with Applications in Removal of Heavy Metals and Dyes. Polymers (Basel) 2021; 13:2893. [PMID: 34502933 PMCID: PMC8433894 DOI: 10.3390/polym13172893] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 12/29/2022] Open
Abstract
The use of biosorbents for the decontamination of industrial effluent (e.g., wastewater treatment) by retaining non-biodegradable pollutants (antibiotics, dyes, and heavy metals) has been investigated in order to develop inexpensive and effective techniques. The exacerbated water pollution crisis is a huge threat to the global economy, especially in association with the rapid development of industry; thus, the sustainable reuse of different treated water resources has become a worldwide necessity. This review investigates the use of different natural (living and non-living) microbial biomass types containing polysaccharides, proteins, and lipids (natural polymers) as biosorbents in free and immobilized forms. Microbial biomass immobilization performed by using polymeric support (i.e., polysaccharides) would ensure the production of efficient biosorbents, with good mechanical resistance and easy separation ability, utilized in different effluents' depollution. Biomass-based biosorbents, due to their outstanding biosorption abilities and good efficiency for effluent treatment (concentrated or diluted solutions of residuals/contaminants), need to be used in industrial environmental applications, to improve environmental sustainability of the economic activities. This review presents the most recent advances related the main polymers such as polysaccharides and microbial cells used for biosorbents production; a detailed analysis of the biosorption capability of algal, bacterial and fungal biomass; as well as a series of specific applications for retaining metal ions and organic dyes. Even if biosorption offers many advantages, the complexity of operation increased by the presence of multiple pollutants in real wastewater combined with insufficient knowledge on desorption and regeneration capacity of biosorbents (mostly used in laboratory scale) requires more large-scale biosorption experiments in order to adequately choose a type of biomass but also a polymeric support for an efficient treatment process.
Collapse
Affiliation(s)
- Alexandra Cristina Blaga
- Department of Organic, Biochemical and Food Engineering, ‘Cristofor Simionescu’ Faculty of Chemical Engineering and Environment Protection, “Gheorghe Asachi” Technical University of Iasi, 73 D. Mangeron Blvd, 700050 Iasi, Romania;
| | - Carmen Zaharia
- Department of Environmental Engineering and Management, ‘Cristofor Simionescu’ Faculty of Chemical Engineering and Environment Protection, “Gheorghe Asachi” Technical University of Iasi, 73 D. Mangeron Blvd, 700050 Iasi, Romania;
| | - Daniela Suteu
- Department of Organic, Biochemical and Food Engineering, ‘Cristofor Simionescu’ Faculty of Chemical Engineering and Environment Protection, “Gheorghe Asachi” Technical University of Iasi, 73 D. Mangeron Blvd, 700050 Iasi, Romania;
| |
Collapse
|
12
|
Qiao N, Fan X, Hu S, Zhang X, Wang L, Du Y, Wang L, Zhang X, Yu D. Bacterial cellulose as an oleaginous yeast cell carrier for soybean oil refinery effluent treatment and pyrolysis oil production. Bioprocess Biosyst Eng 2021; 44:661-671. [PMID: 33211199 DOI: 10.1007/s00449-020-02476-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 11/03/2020] [Indexed: 11/25/2022]
Abstract
Bacterial cellulose produced from soybean oil refinery effluent is a good immobilization carrier because of the large pores in its fiber network, its high water-holding capacity, and its good biocompatibility. In this study, it was applied to immobilization of oleaginous yeasts for treating soybean oil refinery effluent. The immobilization percentage reached 50%, and the removal of chemical oxygen demand and oil content reached 92.1% and 93.1%, respectively, during dynamic immobilization using a mass percentage of bacterial cellulose of 30% and an immobilization time of 24 h, which were significantly higher than those of free oleaginous yeasts or yeasts immobilized by bacterial cellulose from rich medium. The immobilized oleaginous yeasts facilitated the recovery of the yeasts and effectively treated three batches of soybean oil refinery effluent. The immobilized oleaginous yeasts recovered after soybean oil refinery effluent treatment were pyrolyzed to produce bio-oil, which contributed to more alkanes and a higher calorific value of bio-oil in the pyrolysis products as compared to those of free oleaginous yeasts. As bacterial cellulose used as an oleaginous yeast cell carrier is produced from soybean oil refinery effluent, no waste of immobilization materials is involved and an efficient waste-into-oil bioprocess is developed.
Collapse
Affiliation(s)
- Nan Qiao
- School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin, 132012, China
| | - Xue Fan
- School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin, 132012, China
- School of Resources and Environmental Engineering, Jilin Institute of Chemical Technology, Jilin, 132022, China
| | - Shuang Hu
- Sci-Tech Center for Clean Conversion and High-Valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, Jilin, China
| | - Xiuzhen Zhang
- Sci-Tech Center for Clean Conversion and High-Valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, Jilin, China
| | - Ling Wang
- Sci-Tech Center for Clean Conversion and High-Valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, Jilin, China
| | - Yundi Du
- School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin, 132012, China
| | - Lei Wang
- Sci-Tech Center for Clean Conversion and High-Valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, Jilin, China
| | - Xiaojun Zhang
- Sci-Tech Center for Clean Conversion and High-Valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, Jilin, China.
| | - Dayu Yu
- Sci-Tech Center for Clean Conversion and High-Valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, Jilin, China.
| |
Collapse
|
13
|
Electrospun nanofibers enhance trehalose synthesis by regulating gene expression for Micrococcus luteus fermentation. Colloids Surf B Biointerfaces 2021; 202:111714. [PMID: 33765627 DOI: 10.1016/j.colsurfb.2021.111714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 11/23/2022]
Abstract
In this study, mesoporous polyacrylonitrile (PAN)/thermoplastic polyurethane (TPU) blended nanofibers were prepared to immobilize Micrococcus luteus for enhancing the conversion of trehalose. The images of SEM showed the cells were adsorbed on the surface and pores due to the unique pore structure. The results of contact angle, Zeta potential and water holding ratio exhibited the good hydrophilicity and stability of PAN/TPU-P2. Besides, it was indicated that the biomass and immobilization efficiency were increased to 0.633 g/L and 0.153 g/g, respectively. It was the most noteworthy that the trehalose yield could reach 23.46 g/L, which was 71.62 % higher than that of the control in the multi-batch fermentation. Moreover, the reactive oxygen species (ROS) level was decreased to 12.8 % while the enzyme concentration was increased to 11.176 mg/mL. Meanwhile, it was also found that PAN/TPU-P2 immobilization substantially increased the expression of target gene MtreY by 3.500 times. In other words, the mechanism by which immobilized cells increased trehalose yield was that PAN/TPU-P regulated gene expression of MtreY. Therefore, this research provided theoretical foundation for the metabolic regulation of sufficient trehalose production by immobilized cells.
Collapse
|
14
|
Krasowski G, Junka A, Paleczny J, Czajkowska J, Makomaska-Szaroszyk E, Chodaczek G, Majkowski M, Migdał P, Fijałkowski K, Kowalska-Krochmal B, Bartoszewicz M. In Vitro Evaluation of Polihexanide, Octenidine and NaClO/HClO-Based Antiseptics against Biofilm Formed by Wound Pathogens. MEMBRANES 2021; 11:membranes11010062. [PMID: 33477349 PMCID: PMC7830887 DOI: 10.3390/membranes11010062] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/07/2021] [Accepted: 01/14/2021] [Indexed: 12/30/2022]
Abstract
Chronic wounds complicated with biofilm formed by pathogens remain one of the most significant challenges of contemporary medicine. The application of topical antiseptic solutions against wound biofilm has been gaining increasing interest among clinical practitioners and scientific researchers. This paper compares the activity of polyhexanide-, octenidine- and hypochlorite/hypochlorous acid-based antiseptics against biofilm formed by clinical strains of Candida albicans, Staphylococcus aureus and Pseudomonas aeruginosa. The analyses included both standard techniques utilizing polystyrene plates and self-designed biocellulose-based models in which a biofilm formed by pathogens was formed on an elastic, fibrinous surface covered with a fibroblast layer. The obtained results show high antibiofilm activity of polihexanide- and octenidine-based antiseptics and lack or weak antibiofilm activity of hypochlorite-based antiseptic of total chlorine content equal to 80 parts per million. The data presented in this paper indicate that polihexanide- or octenidine-based antiseptics are highly useful in the treatment of biofilm, while hypochlorite-based antiseptics with low chlorine content may be applied for wound rinsing but not when specific antibiofilm activity is required.
Collapse
Affiliation(s)
| | - Adam Junka
- Department of Pharmaceutical Microbiology and Parasitology, Faculty of Pharmacy, Wrocław Medical University, 50-556 Wrocław, Poland; (J.P.); (B.K.-K.); (M.B.)
- Laboratory of Microbiology, Łukasiewicz Research Network—PORT Polish Center for Technology Development, 54-066 Wrocław, Poland;
- Correspondence: ; Tel.: +48-71-784-06-75
| | - Justyna Paleczny
- Department of Pharmaceutical Microbiology and Parasitology, Faculty of Pharmacy, Wrocław Medical University, 50-556 Wrocław, Poland; (J.P.); (B.K.-K.); (M.B.)
| | - Joanna Czajkowska
- Laboratory of Microbiology, Łukasiewicz Research Network—PORT Polish Center for Technology Development, 54-066 Wrocław, Poland;
| | | | - Grzegorz Chodaczek
- Bioimaging Laboratory, Łukasiewicz Research Network—PORT Polish Center for Technology Development, 54-066 Wrocław, Poland; (G.C.); (M.M.)
| | - Michał Majkowski
- Bioimaging Laboratory, Łukasiewicz Research Network—PORT Polish Center for Technology Development, 54-066 Wrocław, Poland; (G.C.); (M.M.)
| | - Paweł Migdał
- Department of Environment Hygiene and Animal Welfare, Wroclaw University of Environmental and Life Sciences, 51-630 Wrocław, Poland;
| | - Karol Fijałkowski
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, 70-311 Szczecin, Poland;
| | - Beata Kowalska-Krochmal
- Department of Pharmaceutical Microbiology and Parasitology, Faculty of Pharmacy, Wrocław Medical University, 50-556 Wrocław, Poland; (J.P.); (B.K.-K.); (M.B.)
| | - Marzenna Bartoszewicz
- Department of Pharmaceutical Microbiology and Parasitology, Faculty of Pharmacy, Wrocław Medical University, 50-556 Wrocław, Poland; (J.P.); (B.K.-K.); (M.B.)
| |
Collapse
|
15
|
Żywicka A, Junka A, Ciecholewska-Juśko D, Migdał P, Czajkowska J, Fijałkowski K. Significant enhancement of citric acid production by Yarrowia lipolytica immobilized in bacterial cellulose-based carrier. J Biotechnol 2020; 321:13-22. [PMID: 32598978 DOI: 10.1016/j.jbiotec.2020.06.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 10/24/2022]
Abstract
The aim of this study was to improve the yield of citric acid (CA), an industrially valuable metabolite, obtained during Yarrowia lipolytica yeast culturing. To this end, Y. lipolytica cells were immobilized on a novel bacterial cellulose (BC) based carrier and subjected to four subsequent cycles of fed-batch culturing. During the fermentation process, yeasts metabolic stability, glucose consumption and CA production were analyzed. The results of our study have shown that BC-immobilized yeasts utilized more glucose than free cells and that the metabolic activity of BC-immobilized cells and the resultant CA production remained on a stable level throughout 4 fermentation batches, while the drop in free cells' metabolic stability and the consequent drop in CA production was observed with each subsequent batch. Also, the overall concentration of CA product was higher in immobilized vs. free yeasts (121-129 g/L vs. 99-110 g/L, respectively). The presented results indicate that the application of a BC carrier for Y. lipolytica culturing correlates not only with a higher yield of CA product but also with more stable and repeatable conditions of the biotechnological fermentation process. The results obtained in this study may find multiple biotechnological applications in which immobilization of various types of cells is required.
Collapse
Affiliation(s)
- Anna Żywicka
- West Pomeranian University of Technology, Department Microbiology and Biotechnology, Piastów 45, 70-311 Szczecin, Poland.
| | - Adam Junka
- Wrocław Medical University, Department of Pharmaceutical Microbiology and Parasitology, Borowska 211A, 50-556Wrocław, Poland.
| | - Daria Ciecholewska-Juśko
- West Pomeranian University of Technology, Department Microbiology and Biotechnology, Piastów 45, 70-311 Szczecin, Poland.
| | - Paweł Migdał
- Wrocław University of Environmental and Life Sciences, Department of Environment, Hygiene and Animal Welfare, 51-630 Wrocław, Poland.
| | - Joanna Czajkowska
- Laboratory of Microbiology, Łukasiewicz Research Network - PORT Polish Center For Technology Development, Stabłowicka 147, 54-066 Wrocław, Poland.
| | - Karol Fijałkowski
- West Pomeranian University of Technology, Department Microbiology and Biotechnology, Piastów 45, 70-311 Szczecin, Poland.
| |
Collapse
|
16
|
Jayani T, Sanjeev B, Marimuthu S, Uthandi S. Bacterial Cellulose Nano Fiber (BCNF) as carrier support for the immobilization of probiotic, Lactobacillus acidophilus 016. Carbohydr Polym 2020; 250:116965. [PMID: 33049863 DOI: 10.1016/j.carbpol.2020.116965] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 08/11/2020] [Accepted: 08/15/2020] [Indexed: 01/22/2023]
Abstract
The present study was conducted to develop bacterial cellulose nanofibers (BCNF) and to evaluate its ability as a carrier material for the incorporation of the probiotic bacteria Lactobacillus acidophilus 016. Bacterial cellulose (5%) dissolved in trifluoroacetic acid (TFA) solution was amended with an equal volume of polyvinyl alcohol (PVA) solution to produce nanofibers via electrospinning. Fourier-transform infrared spectra of BCNF confirmed the absence of TFA used in the dissolution process. Mechanical properties, including tensile strength, surface area, pore-volume, and pore diameter, and thermal analysis of BCNF revealed that the nanofibers could be incorporated in food for the delivery of probiotics. L. acidophilus 016 was successfully immobilized onto the BCNF through the adsorption-incubation technique. SEM micrograph revealed that the immobilized bacteria sustained without any damage during the storage for up to 24 days. Further, the viability studies confirmed the survival of 71% population during the storage at 35 °C. These observations recommended the possibility of BCNF based probiotics for various commercial applications.
Collapse
Affiliation(s)
- T Jayani
- Biocatalysts Laboratoty, Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - B Sanjeev
- Biocatalysts Laboratoty, Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - S Marimuthu
- Department of Nanoscience and Technology, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - Sivakumar Uthandi
- Biocatalysts Laboratoty, Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore, 641003, India.
| |
Collapse
|
17
|
Szymańska M, Karakulska J, Sobolewski P, Kowalska U, Grygorcewicz B, Böttcher D, Bornscheuer UT, Drozd R. Glycoside hydrolase (PelA h) immobilization prevents Pseudomonas aeruginosa biofilm formation on cellulose-based wound dressing. Carbohydr Polym 2020; 246:116625. [PMID: 32747262 DOI: 10.1016/j.carbpol.2020.116625] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 05/30/2020] [Accepted: 06/08/2020] [Indexed: 12/13/2022]
Abstract
Bacterial cellulose (BC) is recognized as a wound dressing material well-suited for chronic wounds; however, it has no intrinsic antimicrobial activity. Further, the formation of biofilms can limit the effectiveness of the pre-saturation of BC with antimicrobial agents. Here, to hinder biofilm formation by P. aeruginosa, we immobilized the hydrolytic domain of PelA (a glycohydrolase involved in the synthesis of biofilm polysaccharide Pel) on the surface of BC. The immobilization of 32.35 ± 1.05 mg PelAh per g BC membrane resulted in an eight-fold higher P. aeruginosa cell detachment from BC membrane, indicating reduced biofilm matrix stability. Further, 1D and 2D infrared spectroscopy analysis indicated systematic reduction of polysaccharide biofilm elements, confirming the specificity of immobilized PelAh. Importantly, BC-PelAh was not cytotoxic towards L929 fibroblast cells. Thus, we conclude that PelAh can be used in BC wound dressings for safe and specific protection against biofilm formation by P. aeruginosa.
Collapse
Affiliation(s)
- Magdalena Szymańska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, 45 Piastow Avenue, 71-311, Szczecin, Poland
| | - Jolanta Karakulska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, 45 Piastow Avenue, 71-311, Szczecin, Poland
| | - Peter Sobolewski
- Department of Polymer and Biomaterials Science, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, 45 Piastów Avenue, 71-311, Szczecin, Poland
| | - Urszula Kowalska
- Center of Bioimmobilisation and Innovative Packaging Materials, Faculty of Food Science and Fisheries, West Pomeranian University of Technology in Szczecin, 35 Klemensa Janickiego Str., 71-270, Szczecin, Poland
| | - Bartłomiej Grygorcewicz
- Department of Laboratory Medicine, Chair of Microbiology, Immunology and Laboratory Medicine, Pomeranian Medical University in Szczecin, 72 Powstańców Wielkopolskich Str., 70-111, Szczecin, Poland
| | - Dominique Böttcher
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, University of Greifswald, Felix-Hausdorff-Str. 4, D-17487, Greifswald, Germany
| | - Uwe T Bornscheuer
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, University of Greifswald, Felix-Hausdorff-Str. 4, D-17487, Greifswald, Germany
| | - Radosław Drozd
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, 45 Piastow Avenue, 71-311, Szczecin, Poland.
| |
Collapse
|
18
|
Bacterial Cellulose-Alginate Composite Beads as Yarrowia lipolytica Cell Carriers for Lactone Production. Molecules 2020; 25:molecules25040928. [PMID: 32093025 PMCID: PMC7070387 DOI: 10.3390/molecules25040928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/09/2020] [Accepted: 02/13/2020] [Indexed: 01/22/2023] Open
Abstract
The demand for natural lactone gamma-decalactone (GDL) has increased in the fields of food and cosmetic products. However, low productivity during bioprocessing limits its industrial production. In this study, a novel composite porous cell carrier, bacterial cellulose-alginate (BC-ALG), was used for long-term biotransformation and production of GDL. The effects of this carrier on biotransformation and related mechanisms were investigated. BC-ALG carriers showed improved mechanical strength over ALG carriers, with their internal embedded cell pattern changed to an interconnected porous structure. In five repeated-batch biotransformation experiments, the maximum concentration of GDL obtained in culture with BC-ALG carriers was 8.37 g/L, approximately 3.7 times higher than that from the medium with an ALG carrier alone. The result indicated that multiple hydrogen bonding interactions at the interface between BC and ALG contributed to the compatibility and stability of BC-ALG carriers. On the basis of the above results, the BC-ALG composite carrier can be considered ideal for immobilisation of cells for the production of GDL on an industrial scale, and has the potential to be utilised in other biological processes.
Collapse
|
19
|
Simić S, Jeremic S, Djokic L, Božić N, Vujčić Z, Lončar N, Senthamaraikannan R, Babu R, Opsenica IM, Nikodinovic-Runic J. Development of an efficient biocatalytic system based on bacterial laccase for the oxidation of selected 1,4-dihydropyridines. Enzyme Microb Technol 2020; 132:109411. [DOI: 10.1016/j.enzmictec.2019.109411] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/14/2019] [Accepted: 08/17/2019] [Indexed: 01/17/2023]
|
20
|
Savitskaya I, Shokatayeva D, Kistaubayeva A, Ignatova L, Digel I. Antimicrobial and wound healing properties of a bacterial cellulose based material containing B. subtilis cells. Heliyon 2019; 5:e02592. [PMID: 31667414 PMCID: PMC6812235 DOI: 10.1016/j.heliyon.2019.e02592] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 09/03/2019] [Accepted: 10/02/2019] [Indexed: 12/22/2022] Open
Abstract
A biocomposite composed of bacterial cellulose (BC) gel-film and Bacillus subtilis (BS) cells was obtained and characterized with a view to future biomedical applications. The inclusion of functional ingredient (1010/g viable BS cells) in the composite was carried out by their joint aggregation with the BC gel-film. Immobilized BS cells displayed high antagonistic activity towards causative agents of wound infections such as Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Pseudomonas aeruginosa. Application of the BC/BS-biocomposite for the treatment of excision wounds, performed on laboratory animals, stimulated reparative processes and shortened the healing time. Possible mechanisms of the wound-healing effect of BC/BS gel films are discussed. In this work we claim that the developed BC/BS-material can be positioned as a universal wound coating and sanitary-hygienic product.
Collapse
Affiliation(s)
- I.S. Savitskaya
- Al-Farabi Kazakh National University, Al-Farabi av. 71, Almaty, 050038, Kazakhstan
| | - D.H. Shokatayeva
- Al-Farabi Kazakh National University, Al-Farabi av. 71, Almaty, 050038, Kazakhstan
| | - A.S. Kistaubayeva
- Al-Farabi Kazakh National University, Al-Farabi av. 71, Almaty, 050038, Kazakhstan
| | - L.V. Ignatova
- Al-Farabi Kazakh National University, Al-Farabi av. 71, Almaty, 050038, Kazakhstan
| | - I.E. Digel
- Aachen University of Applied Sciences, Heinrich-Mußmann-Street 1, Jülich, 52428, Germany
| |
Collapse
|
21
|
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
|