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Foysal MJ, Salgar-Chaparro SJ. Improving the efficiency of DNA extraction from iron incrustations and oilfield-produced water. Sci Rep 2024; 14:2954. [PMID: 38316948 PMCID: PMC10844625 DOI: 10.1038/s41598-024-53134-9] [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: 09/19/2023] [Accepted: 01/29/2024] [Indexed: 02/07/2024] Open
Abstract
The quantity and quality of DNA isolated from environmental samples are crucial for getting robust high-throughput sequencing data commonly used for microbial community analysis. The differences in the nature and physicochemical properties of environmental samples impact DNA yields, and therefore, an optimisation of the protocols is always recommended. For instance, samples collected from corroded areas contain high concentrations of metals, salts, and hydrocarbons that can interfere with several steps of the DNA extraction protocols, thereby reducing yield and quality. In this study, we compared the efficiency of commercially available DNA extraction kits and laboratory-adopted methods for microbial community analysis of iron incrustations and oilfield-produced water samples. Modifications to the kits manufacturers' protocols were included to maximise the yield and quality. For iron incrustations, the modified protocol for FastDNA Spin Kit for Soil yielded higher DNA and resulted in higher diversity, including the recovery of low-abundant and rare taxa in the samples, compared to DNeasy PowerSoil Pro Kit. The DNA extracted with modified phenol-chloroform methods yielded higher DNA but failed to pass quality control PCR for 16S sequencing with and without purification. The protocols mentioned here can be used to maximise DNA recovery from iron incrustations and oilfield-produced water samples.
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Affiliation(s)
- Md Javed Foysal
- Curtin Corrosion Centre, Western Australian School of Mines, Minerals and Energy, Curtin University, Bentley, WA, Australia
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW, Australia
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Silvia J Salgar-Chaparro
- Curtin Corrosion Centre, Western Australian School of Mines, Minerals and Energy, Curtin University, Bentley, WA, Australia.
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Biodegradation of Different Types of Bioplastics through Composting—A Recent Trend in Green Recycling. Catalysts 2023. [DOI: 10.3390/catal13020294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
In recent years, the adoption of sustainable alternatives has become a powerful tool for replacing petroleum-based polymers. As a biodegradable alternative to petroleum-derived plastics, bioplastics are becoming more and more prevalent and have the potential to make a significant contribution to reducing plastic pollution in the environment. Meanwhile, their biodegradation is highly dependent on their environment. The leakage of bioplastics into the environment and their long degradation time frame during waste management processes are becoming major concerns that need further investigation. This review highlights the extent and rate of the biodegradation of bioplastic in composting, soil, and aquatic environments, and examines the biological and environmental factors involved in the process. Furthermore, the review highlights the need for further research on the long-term fate of bioplastics in natural and industrial environments. The roles played by enzymes as biocatalysts and metal compounds as catalysts through composting can help to achieve a sustainable approach to the biodegradation of biopolymers. The knowledge gained in this study will also contribute to the development of policies and assessments for bioplastic waste, as well as provide direction for future bioplastics research and development.
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Grey A, Costeira R, Lorenzo E, O’Kane S, McCaul MV, McCarthy T, Jordan SF, Allen CCR, Kelleher BP. Biogeochemical properties of blue carbon sediments influence the distribution and monomer composition of bacterial polyhydroxyalkanoates (PHA). BIOGEOCHEMISTRY 2023; 162:359-380. [PMID: 36873379 PMCID: PMC9971093 DOI: 10.1007/s10533-022-01008-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 11/25/2022] [Indexed: 06/18/2023]
Abstract
UNLABELLED Coastal wetlands are highly efficient 'blue carbon' sinks which contribute to mitigating climate change through the long-term removal of atmospheric CO2 and capture of carbon (C). Microorganisms are integral to C sequestration in blue carbon sediments and face a myriad of natural and anthropogenic pressures yet their adaptive responses are poorly understood. One such response in bacteria is the alteration of biomass lipids, specifically through the accumulation of polyhydroxyalkanoates (PHAs) and alteration of membrane phospholipid fatty acids (PLFA). PHAs are highly reduced bacterial storage polymers that increase bacterial fitness in changing environments. In this study, we investigated the distribution of microbial PHA, PLFA profiles, community structure and response to changes in sediment geochemistry along an elevation gradient from intertidal to vegetated supratidal sediments. We found highest PHA accumulation, monomer diversity and expression of lipid stress indices in elevated and vegetated sediments where C, nitrogen (N), PAH and heavy metals increased, and pH was significantly lower. This was accompanied by a reduction in bacterial diversity and a shift to higher abundances of microbial community members favouring complex C degradation. Results presented here describe a connection between bacterial PHA accumulation, membrane lipid adaptation, microbial community composition and polluted C rich sediments. GRAPHICAL ABSTRACT Geochemical, microbiological and polyhydroxyalkanoate (PHA) gradient in a blue carbon zone. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10533-022-01008-5.
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Affiliation(s)
- Anthony Grey
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Ricardo Costeira
- The School of Biological Sciences, Queen’s University Belfast, Belfast, Northern Ireland
| | - Emmaline Lorenzo
- Department of Chemistry, University of Kansas, Lawrence, 66045 USA
| | - Sean O’Kane
- National Centre for Geocomputation, Maynooth University, Maynooth, Ireland
| | - Margaret V. McCaul
- Insight SFI Research Centre for Data Analytics, Dublin City University, Dublin 4, Ireland
| | - Tim McCarthy
- National Centre for Geocomputation, Maynooth University, Maynooth, Ireland
| | - Sean F. Jordan
- Insight SFI Research Centre for Data Analytics, Dublin City University, Dublin 4, Ireland
| | | | - Brian P. Kelleher
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
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Wang Y, Huang J, Liang X, Wei M, Liang F, Feng D, Xu C, Xian M, Zou H. Production and waste treatment of polyesters: application of bioresources and biotechniques. Crit Rev Biotechnol 2022; 43:503-520. [PMID: 35430940 DOI: 10.1080/07388551.2022.2039590] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Chemical resources and techniques have long been used in the history of bulk polyester production and still dominate today's chemical industry. The sustainable development of the polyester industry demands more renewable resources and environmentally benign polyester products. Accordingly, the rapid development of biotechnology has enabled the production of an extensive range of aliphatic and aromatic polyesters from renewable bio-feedstocks. This review addresses the production of representative commercial polyesters (polyhydroxyalkanoates, polylactic acid, poly ε-caprolactone, polybutylene succinate, polyethylene terephthalate, polybutylene terephthalate, polypropylene terephthalate, polyethylene furandicarboxylate, polypropylene furandicarboxylate, and polybutylene furandicarboxylate) or their monomers (lactic acid, succinic acid, 1,4-butanediol, ethylene glycol, terephthalic acid, 1,3-propanediol, and 2,5-furandicarboxylic acid) from renewable bioresources. In addition, this review summarizes advanced biotechniques in the treatment of polyester wastes, representing the near-term trends and future opportunities for waste-to-value recycling and the remediation of polyester wastes under sustainable models. For future prospects, it is essential to further expand: non-food bioresources, optimize bioprocesses and biotechniques in the preparation of bioderived or biodegradable polyesters with promising: material performance, biodegradability, and low production cost.
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Affiliation(s)
- Yaqun Wang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Jingling Huang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Xiuhong Liang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Manman Wei
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Fengbing Liang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Dexin Feng
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Chao Xu
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Mo Xian
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Huibin Zou
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
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Gómez-Gast N, López Cuellar MDR, Vergara-Porras B, Vieyra H. Biopackaging Potential Alternatives: Bioplastic Composites of Polyhydroxyalkanoates and Vegetal Fibers. Polymers (Basel) 2022; 14:polym14061114. [PMID: 35335445 PMCID: PMC8950292 DOI: 10.3390/polym14061114] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/28/2022] [Accepted: 03/07/2022] [Indexed: 02/07/2023] Open
Abstract
Initiatives to reduce plastic waste are currently under development worldwide. As a part of it, the European Union and private and public organizations in several countries are designing and implementing regulations for single-use plastics. For example, by 2030, plastic packaging and food containers must be reusable or recyclable. In another approach, researchers are developing biopolymers using biodegradable thermoplastics, such as polyhydroxyalkanoates (PHAs), to replace fossil derivatives. However, their production capacity, high production costs, and poor mechanical properties hinder the usability of these biopolymers. To overcome these limitations, biomaterials reinforced with natural fibers are acquiring more relevance as the world of bioplastics production is increasing. This review presents an overview of PHA–vegetal fiber composites, the effects of the fiber type, and the production method’s impact on the mechanical, thermal, barrier properties, and biodegradability, all relevant for biopackaging. To acknowledge the behaviors and trends of the biomaterials reinforcement field, we searched for granted patents focusing on bio-packaging applications and gained insight into current industry developments and contributions.
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Affiliation(s)
- Natalia Gómez-Gast
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Carretera Lago de Guadalupe 3.5, Colonia Margarita Maza de Juárez, Atizapán de Zaragoza 52926, Mexico; (N.G.-G.); (B.V.-P.)
| | - Ma Del Rocío López Cuellar
- Cuerpo Académico de Biotecnología Agroalimentaria (CABA), Institute of Food and Agricultural Sciences (ICAp), Autonomous University of Hidalgo State (UAEH), Av. Universidad Km. 1, Ex-Hda. De Aquetzalpa AP 32, Tulancingo de Bravo 43600, Mexico;
| | - Berenice Vergara-Porras
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Carretera Lago de Guadalupe 3.5, Colonia Margarita Maza de Juárez, Atizapán de Zaragoza 52926, Mexico; (N.G.-G.); (B.V.-P.)
| | - Horacio Vieyra
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Eduardo Monroy Cardenas 2000, San Antonio Buenavista, Toluca de Lerdo 50110, Mexico
- Correspondence:
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Zher Neoh S, Fey Chek M, Tiang Tan H, Linares-Pastén JA, Nandakumar A, Hakoshima T, Sudesh K. Polyhydroxyalkanoate synthase (PhaC): The key enzyme for biopolyester synthesis. CURRENT RESEARCH IN BIOTECHNOLOGY 2022. [DOI: 10.1016/j.crbiot.2022.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Volova T, Demidenko A, Kurachenko N, Baranovsky S, Petrovskaya O, Shumilova A. Efficacy of embedded metribuzin and tribenuron-methyl herbicides in field-grown vegetable crops infested by weeds. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:982-994. [PMID: 32829434 DOI: 10.1007/s11356-020-10359-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
The purpose of the present study was to investigate the efficacy of the experimental formulations of the metribuzin (MET) and tribenuron-methyl (TBM) herbicides embedded in the matrix of degradable poly-3-hydroxybutyrate blended with wood flour in field-grown tomato and beet crops infested by weeds. There is a necessity to develop environmentally friendly and effective means to protect plants because of the shortcomings of the free herbicide forms such as the environmentally unsafe spray application of solutions and suspensions of the widespread metribuzin and tribenuron-methyl herbicides, removal from soil during watering events and rains, and transport to natural aquatic environments, where the herbicides accumulate in the trophic chains of biota. Free TBM is also rapidly inactivated in soil and metabolized to nontoxic products in plants. The efficacy of experimental formulations of metribuzin and tribenuron-methyl embedded in the matrix of degradable poly-3-hydroxybutyrate blended with wood flour was tested in field-grown tomato and beet crops infested with weeds. Application of metribuzin resulted in the highest productivity of tomatoes (2.3 kg/m2) and table beet (3.4 kg/m2), improved biometric parameters of tomato fruits and beet roots, and caused reduction in nitrate nitrogen concentrations in them. The mode of herbicide delivery did not affect sugar contents, but application of both metribuzin and tribenuron-methyl induced a 1.7-fold and 1.4-fold, respectively, increase in vitamin C concentrations in tomato fruits and beet roots relative to the vegetables grown on the subplots treated with free herbicides and the intact plants. Embedded herbicides can be used as preemergence herbicides in the field. Fig. a Graphical abstract.
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Affiliation(s)
- Tatyana Volova
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia
- Institute of Biophysics SB RAS, Federal Research Center "Krasnoyarsk Science Center SB RAS", 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
| | - Alexey Demidenko
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia
- Institute of Biophysics SB RAS, Federal Research Center "Krasnoyarsk Science Center SB RAS", 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
| | - Natalia Kurachenko
- Krasnoyarsk State Agrarian University, 90 Mir av., Krasnoyarsk, 660049, Russia
| | - Sergey Baranovsky
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia
| | - Olga Petrovskaya
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia
| | - Anna Shumilova
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia.
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Murugan P, Ong SY, Hashim R, Kosugi A, Arai T, Sudesh K. Development and evaluation of controlled release fertilizer using P(3HB-co-3HHx) on oil palm plants (nursery stage) and soil microbes. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101710] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Hori C, Sugiyama T, Watanabe K, Sun J, Kamada Y, Ooi T, Isono T, Satoh T, Sato SI, Taguchi S, Matsumoto K. Isolation of poly[d-lactate (LA)-co-3-hydroxybutyrate)]-degrading bacteria from soil and characterization of d-LA homo-oligomer degradation by the isolated strains. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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El-Taweel SH, Al-Ahmadi AO. Thermal behavior and soil biodegradation for blends of poly(hydroxybutyrate)/ethylene vinyl acetate copolymer (EVA 60) with 1 mass% NH4Cl. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03129-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Production of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) using agro-industrial effluents with tunable proportion of 3-hydroxyvalerate monomer units. Int J Biol Macromol 2019; 128:429-434. [DOI: 10.1016/j.ijbiomac.2019.01.170] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 01/28/2019] [Accepted: 01/28/2019] [Indexed: 02/01/2023]
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Morohoshi T, Oi T, Aiso H, Suzuki T, Okura T, Sato S. Biofilm Formation and Degradation of Commercially Available Biodegradable Plastic Films by Bacterial Consortiums in Freshwater Environments. Microbes Environ 2018; 33:332-335. [PMID: 30158390 PMCID: PMC6167122 DOI: 10.1264/jsme2.me18033] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
We investigated biofilm formation on biodegradable plastics in freshwater samples. Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH) was covered by a biofilm after an incubation in freshwater samples. A next generation sequencing analysis of the bacterial communities of biofilms that formed on PHBH films revealed the dominance of the order Burkholderiales. Furthermore, Acidovorax and Undibacterium were the predominant genera in most biofilms. Twenty-five out of 28 PHBH-degrading isolates were assigned to the genus Acidovorax, while the other three were assigned to the genera Undibacterium and Chitinimonas. These results demonstrated that the order Burkholderiales in biofilms functions as a degrader of PHBH films.
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Affiliation(s)
- Tomohiro Morohoshi
- Department of Material and Environmental Chemistry, Graduate School of Engineering, Utsunomiya University
| | - Taishiro Oi
- Department of Material and Environmental Chemistry, Graduate School of Engineering, Utsunomiya University
| | - Haruna Aiso
- Center for Bioscience Research and Education, Utsunomiya University
| | - Tomohiro Suzuki
- Center for Bioscience Research and Education, Utsunomiya University
| | - Tetsuo Okura
- Process Development Research Laboratories, Plastics Molding and Processing Technology Development Group, Kaneka Corporation
| | - Shunsuke Sato
- Health Care Solutions Research Institute Biotechnology Development Laboratories, Kaneka Corporation
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Zembouai I, Kaci M, Zaidi L, Bruzaud S. Combined effects of Sepiolite and Cloisite 30B on morphology and properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/polylactide blends. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.04.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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14
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A novel biological recovery approach for PHA employing selective digestion of bacterial biomass in animals. Appl Microbiol Biotechnol 2018; 102:2117-2127. [DOI: 10.1007/s00253-018-8788-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/14/2018] [Accepted: 01/15/2018] [Indexed: 12/24/2022]
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Koller M, Vadlja D, Braunegg G, Atlić A, Horvat P. Formal- and high-structured kinetic process modelling and footprint area analysis of binary imaged cells: Tools to understand and optimize multistage-continuous PHA biosynthesis. EUROBIOTECH JOURNAL 2017. [DOI: 10.24190/issn2564-615x/2017/03.01] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abstract
Competitive polyhydroxyalkanoate (PHAs) production requires progress in microbial strain performance, feedstock selection, downstream processing, and more importantly according to the process design with process kinetics of the microbial growth phase and the phase of product formation. The multistage continuous production in a bioreactor cascade was described for the first time in a continuously operated, flexible five-stage bioreactor cascade that mimics the characteristics involved in the engineering process of tubular plug flow reactors. This process was developed and used for Cupriavidus necator-mediated PHA production at high volumetric and specific PHA productivity (up to 2.31 g/(Lh) and 0.105 g/(gh), respectively). Based on the experimental data, formal kinetic and high structured kinetic models were established, accompanied by footprint area analysis of binary imaged cells. As a result of the study, there has been an enhanced understanding of the long-term continuous PHA production under balanced, transient, and nutrient-deficient conditions that was achieved on both the micro and the macro kinetic level. It can also be concluded that there were novel insights into the complex metabolic occurrences that developed during the multistage- continuous production of PHA as a secondary metabolite. This development was essential in paving the way for further process improvement. At the same time, a new method of specific growth rate and specific production rate based on footprint area analysis was established by using the electron microscope.
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Affiliation(s)
- Martin Koller
- University of Graz, Office of Research Management and Service, c/o Institute of Chemistry, NAWI Graz , Austria
- ARENA (Association for Resource Efficient and Sustainable Technologies), Graz , Austria
| | - Denis Vadlja
- University of Zagreb, Faculty of Food Technology and Biotechnology, Department of Biochemical Engineering, Zagreb , Croatia
| | - Gerhart Braunegg
- ARENA (Association for Resource Efficient and Sustainable Technologies), Graz , Austria
| | - Aid Atlić
- VTU Technology GmbH, Grambach/ Graz , Austria
| | - Predrag Horvat
- University of Zagreb, Faculty of Food Technology and Biotechnology, Department of Biochemical Engineering, Zagreb , Croatia
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