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Morkus P, Sibbald S, Choi L, Rassenberg S, Filipe CDM, Latulippe DR. Miniaturization of an enclosed electrospinning process to enhance reproducibility in the fabrication of rapidly dissolving cell-based biosensors. Biotechnol J 2024; 19:e2300306. [PMID: 37882254 DOI: 10.1002/biot.202300306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 10/15/2023] [Accepted: 10/23/2023] [Indexed: 10/27/2023]
Abstract
There is broad interest in producing electrospun films embedded with biological materials. It is well known that electrospinning requires careful control of the process conditions, especially the environmental conditions such as relative humidity (RH). Given that commercial electrospinning systems are expensive (> $10,000) and are typically too large to be used in standard biological safety cabinets (BSC), we designed and built a miniaturized electrospinning box (E-Box) that will fit inside a BSC, and the RH can be easily controlled using simple instrumentation (gas cylinder, regulator, needle valve, rotameter). It uses an inexpensive computerized numerical control machine to control the spinneret positioning and collector rotational speed-all the parts for the device (except the syringe pump and voltage supply) can be purchased for approximately $1000. We demonstrate the usefulness of our design in optimizing the production of Escherichia coli-embedded pullulan-trehalose films to be used as rapidly dissolving biosensors for environmental monitoring. At a fixed electrospinning recipe, we showed that decreasing the RH from approximately 48% to 22% resulted in the average fiber diameter increasing from 240 (± 11) nm to 314 (± 8) nm. We also demonstrate the usefulness of our design in performing sequential electrospinning experiments to evaluate process performance reproducibility. For example, from just 1 mL of a polymer solution, we produced 16 electrospun films (approximately 3 cm by 8 cm each)-from those films we hole-punched approximately 80 biosensor discs which were then used in subsequent experiments to determine the amount of two different biocides (Grotan BK and triclosan) in aqueous samples. The technique developed in this study is ideal for creating electrospun materials in high quantities that are highly reproducible through the precise control of RH.
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Affiliation(s)
- Patrick Morkus
- Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Stephanie Sibbald
- Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Lauren Choi
- Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Sarah Rassenberg
- Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Carlos D M Filipe
- Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - David R Latulippe
- Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada
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Abdelfadil MR, Taha MH, El-Hadidi M, Hamza MA, Youssef HH, Khalil M, Henawy AR, Nemr RA, Elsawey H, Tchakounte GVT, Abbas M, Youssef GH, Witzel K, Shawky ME, Fayez M, Kolb S, Hegazi NA, Ruppel S. Clay chips and beads capture in situ barley root microbiota and facilitate in vitro long-term preservation of microbial strains. FEMS Microbiol Ecol 2022; 98:6596281. [PMID: 35641146 PMCID: PMC9249396 DOI: 10.1093/femsec/fiac064] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/18/2022] [Accepted: 05/25/2022] [Indexed: 11/23/2022] Open
Abstract
Capturing the diverse microbiota from healthy and/or stress resilient plants for further preservation and transfer to unproductive and pathogen overloaded soils, might be a tool to restore disturbed plant–microbe interactions. Here, we introduce Aswan Pink Clay as a low-cost technology for capturing and storing the living root microbiota. Clay chips were incorporated into the growth milieu of barley plants and developed under gnotobiotic conditions, to capture and host the rhizospheric microbiota. Afterward, it was tested by both a culture-independent (16S rRNA gene metabarcoding) and -dependent approach. Both methods revealed no significant differences between roots and adjacent clay chips in regard total abundance and structure of the present microbiota. Clay shaped as beads adequately supported the long-term preservation of viable pure isolates of typical rhizospheric microbes, i.e. Bacillus circulans, Klebsiella oxytoca, Sinorhizobium meliloti, and Saccharomyces sp., up to 11 months stored at −20°C, 4°C, and ambient temperature. The used clay chips and beads have the capacity to capture the root microbiota and to long-term preserve pure isolates. Hence, the developed approach is qualified to build on it a comprehensive strategy to transfer and store complex and living environmental microbiota of rhizosphere toward biotechnological application in sustainable plant production and environmental rehabilitation.
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Affiliation(s)
- Mohamed R Abdelfadil
- Thaer-Institute, Faculty of Life Sciences, Humboldt University of Berlin, Berlin 10115, Germany.,Department of Microbiology, Faculty of Agriculture, Cairo University, Giza 12613, Egypt.,Department of Plant Microbe Systems, Leibniz Institute of Vegetable and Ornamental Crops, Großbeeren 14979, Germany.,RA Landscape Functioning, Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, D-15374 Müncheberg, Germany
| | - Manar H Taha
- Bioinformatics Group, Center of Informatics Sciences (CIS), Nile University, Giza, Egypt
| | - Mohamed El-Hadidi
- Bioinformatics Group, Center of Informatics Sciences (CIS), Nile University, Giza, Egypt
| | - Mervat A Hamza
- Department of Microbiology, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Hanan H Youssef
- Department of Microbiology, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Mohab Khalil
- Department of Microbiology, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Ahmed R Henawy
- Department of Microbiology, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Rahma A Nemr
- Department of Microbiology, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Hend Elsawey
- Faculty of Organic Agriculture, Heliopolis University, Cairo 11785, Egypt
| | | | - Mohamed Abbas
- Department of Microbiology, Faculty of Agriculture & Natural Resources, Aswan University, Aswan 81528, Egypt
| | - Gehan H Youssef
- Department of Soil Chemistry and Physics, Soil, Water and Environment Research Institute, Agricultural Research Centre (ARC), Giza 12613, Egypt
| | - Katja Witzel
- Department of Plant Microbe Systems, Leibniz Institute of Vegetable and Ornamental Crops, Großbeeren 14979, Germany
| | - Mohamed Essam Shawky
- Department of Soil Science, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Mohamed Fayez
- Department of Microbiology, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Steffen Kolb
- Thaer-Institute, Faculty of Life Sciences, Humboldt University of Berlin, Berlin 10115, Germany.,RA Landscape Functioning, Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, D-15374 Müncheberg, Germany
| | - Nabil A Hegazi
- Department of Microbiology, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Silke Ruppel
- Department of Plant Microbe Systems, Leibniz Institute of Vegetable and Ornamental Crops, Großbeeren 14979, Germany
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Sharma SK, Dhyani R, Ahmad E, Maurya PK, Yadav M, Yadav RC, Yadav VK, Sharma PK, Sharma MP, Ramesh A, Saxena AK. Characterization and low-cost preservation of Chromobacterium violaceum strain TRFM-24 isolated from Tripura state, India. J Genet Eng Biotechnol 2021; 19:146. [PMID: 34596780 PMCID: PMC8486904 DOI: 10.1186/s43141-021-00241-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 09/02/2021] [Indexed: 11/10/2022]
Abstract
Background Chromobacterium species, through their bioactive molecules, help in combating biotic and abiotic stresses in plants and humans. The present study was aimed to identify, characterize and preserve in natural gums the violet-pigmented bacterial isolate TRFM-24 recovered from the rhizosphere soil of rice collected from Tripura state. Results Based on morphological, biochemical and 16S rRNA gene sequencing, the isolate TFRM-24 was identified as Chromobacterium violaceum (NAIMCC-B-02276; MCC 4212). The bacterium is saprophytic, free living and Gram negative. The strain was found positive for production of IAA, cellulase, xylanase and protease, and showed tolerance to salt (2.5%) and drought (-1.2 MPa). However, it showed poor biocontrol activity against soil-borne phytopathogens and nutrient-solubilizing abilitiets. C. violaceum strain TRFM-24 did not survive on tryptic soya agar (TSA) beyond 12 days between 4 and 32 °C temperature hence a method of preservation of this bacterium was attempted using different natural gums namely Acacia nilotica (babul), Anogeissus latifolia (dhavda), Boswellia serrata (salai) and Butea monosperma (palash) under different temperature regime (6–32 °C). The bacterium survived in babul gum (gum acacia), dhavda and salai solution at room temperature beyond a year. Conclusion Based on polyphasic approach, a violet-pigmented isolate TRFM-24 was identified as Chromobacterim violaceum which possessed some attributes of plant and human importance. Further, a simple and low-cost preservation method of strain TRFM-24 at room temperature was developed using natural gums such as babul, dhavda and salai gums which may be the first report to our knowledge. Supplementary Information The online version contains supplementary material available at 10.1186/s43141-021-00241-z.
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Affiliation(s)
- Sushil K Sharma
- National Agriculturally Important Microbial Culture Collection (NAIMCC), ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan, Uttar Pradesh, 275 103, India. .,Present Address: ICAR-National Institute of Biotic Stress Management, Baronda, Raipur, Chhattisgarh, 493 225, India.
| | - Rakhi Dhyani
- National Agriculturally Important Microbial Culture Collection (NAIMCC), ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan, Uttar Pradesh, 275 103, India
| | - Ees Ahmad
- National Agriculturally Important Microbial Culture Collection (NAIMCC), ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan, Uttar Pradesh, 275 103, India
| | - Pankaj K Maurya
- National Agriculturally Important Microbial Culture Collection (NAIMCC), ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan, Uttar Pradesh, 275 103, India
| | - Madhu Yadav
- National Agriculturally Important Microbial Culture Collection (NAIMCC), ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan, Uttar Pradesh, 275 103, India
| | - Ramesh Chandra Yadav
- National Agriculturally Important Microbial Culture Collection (NAIMCC), ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan, Uttar Pradesh, 275 103, India
| | - Vinod Kumar Yadav
- National Agriculturally Important Microbial Culture Collection (NAIMCC), ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan, Uttar Pradesh, 275 103, India
| | - Pawan K Sharma
- National Agriculturally Important Microbial Culture Collection (NAIMCC), ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan, Uttar Pradesh, 275 103, India
| | - Mahaveer P Sharma
- ICAR-Indian Institute of Soybean Research, Khandwa Road, Indore, Madhya Pradesh, 425 001, India
| | - Aketi Ramesh
- ICAR-Indian Institute of Soybean Research, Khandwa Road, Indore, Madhya Pradesh, 425 001, India
| | - Anil K Saxena
- National Agriculturally Important Microbial Culture Collection (NAIMCC), ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan, Uttar Pradesh, 275 103, India
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Morkus P, Zolfaghari M, Kordkandi SA, Nease J, Filipe CDM, Latulippe DR. A Rapid Assay to Assess Nitrification Inhibition Using a Panel of Bacterial Strains and Partial Least Squares Modeling. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:184-194. [PMID: 31790215 DOI: 10.1021/acs.est.9b04453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
As a proof of concept, a rapid assay consisting of a cell-based biosensor (CBB) panel of pure bacterial strains, a fluorescent dye, and partial least squares (PLS) modeling was developed to assess the nitrification inhibition potential of industrial wastewater (WW) samples. The current standard method used to assess the nitrification inhibition potential is the specific nitrification rate (SNR) batch test, which requires approximately 4 h to complete under the watch of an experienced operator. In this study, we exposed the CBB panel of seven bacterial strains (nitrifying and non-nitrifying) to 28 different industrial WW samples and then probed both the membrane integrity and cellular activity using a commercially available "live/dead" fluorescent dye. The CBB panel response acts as a surrogate measurement for the performance of nitrification. Of the seven strains, four (Nitrospira, Escherichia coli, Bacillus subtilis, Bacillus cereus) were identified via the modeling technique to be the most significant contributors for predicting the nitrification inhibition potential. The key outcome from this work is that the CBB panel fluorescence data (collected in approximately 10 min) can accurately predict the outcome of an SNR batch test (that takes 4 h) when performed with the same WW samples and has a strong potential to approximate the chemical composition of these WW samples using PLS modeling. Overall, this is a powerful technique that can be used for point-of-use detection of nitrification inhibition.
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Affiliation(s)
- Patrick Morkus
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Mehdi Zolfaghari
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Salman Alizadeh Kordkandi
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Jake Nease
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - Carlos D M Filipe
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
| | - David R Latulippe
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
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Hutchison JR, Brooks SM, Kennedy ZC, Pope TR, Deatherage Kaiser BL, Victry KD, Warner CL, Oxford KL, Omberg KM, Warner MG. Polysaccharide-based liquid storage and transport media for non-refrigerated preservation of bacterial pathogens. PLoS One 2019; 14:e0221831. [PMID: 31490969 PMCID: PMC6730858 DOI: 10.1371/journal.pone.0221831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 08/15/2019] [Indexed: 11/18/2022] Open
Abstract
The preservation of biological samples for an extended time period of days to weeks after initial collection is important for the identification, screening, and characterization of bacterial pathogens. Traditionally, preservation relies on cold-chain infrastructure; however, in many situations this is impractical or not possible. Thus, our goal was to develop alternative bacterial sample preservation and transport media that are effective without refrigeration or external instrumentation. The viability, nucleic acid stability, and protein stability of Bacillus anthracis Sterne 34F2, Francisella novicida U112, Staphylococcus aureus ATCC 43300, and Yersinia pestis KIM D27 (pgm-) was assessed for up to 28 days. Xanthan gum (XG) prepared in PBS with L-cysteine maintained more viable F. novicida U112 cells at elevated temperature (40°C) compared to commercial reagents and buffers. Viability was maintained for all four bacteria in XG with 0.9 mM L-cysteine across a temperature range of 22-40°C. Interestingly, increasing the concentration to 9 mM L-cysteine resulted in the rapid death of S. aureus. This could be advantageous when collecting samples in the built environment where there is the potential for Staphylococcus collection and stabilization rather than other organisms of interest. F. novicida and S. aureus DNA were stable for up to 45 days upon storage at 22°C or 40°C, and direct analysis by real-time qPCR, without DNA extraction, was possible in the XG formulations. XG was not compatible with proteomic analysis via LC-MS/MS due to the high amount of residual Xanthomonas campestris proteins present in XG. Our results demonstrate that polysaccharide-based formulations, specifically XG with L-cysteine, maintain bacterial viability and nucleic acid integrity for an array of both Gram-negative and Gram-positive bacteria across ambient and elevated temperatures.
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Affiliation(s)
- Janine R. Hutchison
- Chemical and Biological Signature Sciences Group, National Security Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
- * E-mail: (JH); (MW)
| | - Shelby M. Brooks
- Subsurface Science and Technology Group, Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Zachary C. Kennedy
- Chemical and Biological Signature Sciences Group, National Security Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Timothy R. Pope
- Chemical and Biological Signature Sciences Group, National Security Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Brooke L. Deatherage Kaiser
- Chemical and Biological Signature Sciences Group, National Security Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Kristin D. Victry
- Chemical and Biological Signature Sciences Group, National Security Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Cynthia L. Warner
- Chemical and Biological Signature Sciences Group, National Security Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Kristie L. Oxford
- Integrated Omics, Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Kristin M. Omberg
- Chemical and Biological Signature Sciences Group, National Security Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Marvin G. Warner
- Chemical and Biological Signature Sciences Group, National Security Directorate, Pacific Northwest National Laboratory, Richland, WA, United States of America
- * E-mail: (JH); (MW)
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Tang W, Yang J, Wang F, Li Z. Efficient Preservation of Acetylcholinesterase at Room Temperature for Facile Detection of Organophosphorus Pesticide. ANAL SCI 2019; 35:401-406. [PMID: 30555106 DOI: 10.2116/analsci.18p322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A simple and inexpensive strategy is reported to facilitate the detection of an organophosphorus pesticide by acetylcholinesterase (AChE). Pullulan is able to preserve AChE at room temperature, but the activity of conserved AChE varies significantly depending on the time, stir and volume of solution to dissolve it. The reason is that AChE entrapped in pullulan tablet remains in an inactive state to avoid denaturalization and deactivation. There is a reactivation process to gradually recover the enzyme activity during dissolution of the tablet. Stirring would interrupt this procedure and lead to a loss of enzyme activity. Dissolution of the tablet for 5 min with a volume of 15 μL could facilitate full recovery of AChE activity. The feasibility of activated AChE for organophosphorus pesticide detection was evaluated using malaoxon. These results contribute to the understanding of preservation mechanism by pullulan and the development of easy-to-use enzyme assays.
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Affiliation(s)
- Wenzhi Tang
- College of Food Science and Engineering, Northwest A&F University.,Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture.,National Engineering Research Center of Agriculture Integration Test (Yangling)
| | - Jingxian Yang
- College of Food Science and Engineering, Northwest A&F University.,Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture.,National Engineering Research Center of Agriculture Integration Test (Yangling)
| | - Fei Wang
- College of Food Science and Engineering, Northwest A&F University.,Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture.,National Engineering Research Center of Agriculture Integration Test (Yangling)
| | - Zhonghong Li
- College of Food Science and Engineering, Northwest A&F University.,Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture.,National Engineering Research Center of Agriculture Integration Test (Yangling)
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Morkus P, Zolfaghari M, Parrello D, Csordas M, Malikov M, Rose J, Choi KB, Filipe CDM, Latulippe DR. Optimization of microorganism preservation conditions for the development of an acute toxicity bioassay for biocides. CHEMOSPHERE 2019; 221:45-54. [PMID: 30634148 DOI: 10.1016/j.chemosphere.2018.12.182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 12/22/2018] [Accepted: 12/24/2018] [Indexed: 06/09/2023]
Abstract
Biocides, also referred to as 'microbicides' or 'inhibitors', are widely used in industrial processes (e.g. utility water in cooling towers) to control and/or eliminate the growth of microorganisms. Because of their inherent toxicity, their presence in various sources (e.g. river sediments, potable water) can negatively affect ecosystems. Currently available biocide detection techniques are not suitable for 'point-of-use' applications since they are tedious, complicated, and often require experienced personnel to operate. To address this concern, we sought to develop a simple-to-use toxicity bioassay based on a model microorganism (E. coli) after short (<30 min) exposure to known biocides that can be stored at room temperature (preferably) or in the fridge. Based on recent work and our expertise in polymer-based preservation of biomolecules, we leveraged this knowledge to improve E. coli preservation for biocide detection purposes. A design-of-experiments strategy was used to evaluate 16 different preservation conditions from 5 process parameters (i.e. 25-1 fractional factorial). It was found that pullulan, a sugar-based polymer, improved E. coli culturability by an order of magnitude after three months of storage. Also, it was found that storing E. coli in the fridge in Milli-Q water was favorable for maintaining a high level of culturability. Finally, the toxicity of three common biocides (Cetyltrimethylammonium bromide (CTAB), ProClin™ 300, and Grotan® BK) was evaluated using a fluorescence-based assay across all 16 preservation conditions. The response of the preserved E. coli was biocide specific and at certain conditions did not vary during the entire three-month storage period.
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Affiliation(s)
- Patrick Morkus
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada
| | - Mehdi Zolfaghari
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada
| | - Damien Parrello
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada
| | - Matthew Csordas
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada
| | - Mikayil Malikov
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada
| | - James Rose
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada
| | - Kenneth Byungjun Choi
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada
| | - Carlos D M Filipe
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada
| | - David R Latulippe
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada.
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Long-term preservation of Leptospira spp.: challenges and prospects. Appl Microbiol Biotechnol 2018; 102:5427-5435. [PMID: 29736823 DOI: 10.1007/s00253-018-9047-9] [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: 01/27/2018] [Revised: 04/18/2018] [Accepted: 04/19/2018] [Indexed: 10/17/2022]
Abstract
Preservation of leptospiral cultures is tantamount to success in leptospiral diagnostics, research, and development of preventive strategies. Each Leptospira isolate has imperative value not only in disease diagnosis but also in epidemiology, virulence, pathogenesis, and drug development studies. As the number of circulating leptospires is continuously increasing and congruent with the importance to retain their original characteristics and properties, an efficient long-term preservation is critically needed to be well-established. However, the preservation of Leptospira is currently characterized by difficulties and conflicting results mainly due to the biological nature of this organism. Hence, this review seeks to describe the efforts in developing efficient preservation methods, to discover the challenges in preserving this organism and to identify the factors that can contribute to an effective long-term preservation of Leptospira. Through the enlightenment of the previous studies, a potentially effective method has been suggested. The article also attempts to evaluate novel strategies used in other industrial and biotechnological preservation efforts and consider their potential application to the conservation of Leptospira spp.
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9
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K.R. S, V. P. Review on production, downstream processing and characterization of microbial pullulan. Carbohydr Polym 2017; 173:573-591. [DOI: 10.1016/j.carbpol.2017.06.022] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 05/20/2017] [Accepted: 06/05/2017] [Indexed: 10/19/2022]
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10
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Chen H, Jin RC. Summary of the preservation techniques and the evolution of the anammox bacteria characteristics during preservation. Appl Microbiol Biotechnol 2017; 101:4349-4362. [DOI: 10.1007/s00253-017-8289-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 03/30/2017] [Accepted: 04/04/2017] [Indexed: 11/27/2022]
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Gomaa EZ. Cryoprotection of probiotic bacteria with poly-γ-glutamic acid produced by Bacillus subtilis and Bacillus licheniformis. J Genet Eng Biotechnol 2016; 14:269-279. [PMID: 30647625 PMCID: PMC6299871 DOI: 10.1016/j.jgeb.2016.10.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Revised: 09/20/2016] [Accepted: 10/17/2016] [Indexed: 11/24/2022]
Abstract
Poly-γ-glutamic acid (γ-PGA) is a naturally occurring biopolymer made up of repeating units of glutamic acid and can be potentially used for multiple applications. This study compared the production of γ-PGA by Bacillus subtilis and Bacillus licheniformis in GS and E media. The highest γ-PGA production was achieved using initial glycerol concentration of 40 and 80 g/l, ammonium chloride as the nitrogen source, 20 g/l glutamic acid at pH 6.5 for 72 h using E medium. On characterization, it was observed that glutamic acid was the sole component of the purified material. It contained a mixture of Na-γ-PGA and H+-γ-PGA. The survival of probiotics during freeze drying was improved by combining them with γ-PGA polymer. For Lactobacilli, 10% γ-PGA protected the cells significantly than 10% sucrose during freeze drying. γ-PGA protection was shown to improve the viability of probiotic bacteria in orange juice for 40 days. No considerable change was observed in the concentrations of citric acid, malic acid and ascorbic acid when probiotic bacteria and γ-PGA were introduced into orange juice and hence, it could be used as a non-dairy delivery platform for these bacteria.
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Affiliation(s)
- Eman Zakaria Gomaa
- Department of Biological and Geological Sciences, Faculty of Education, Ain Shams University, Cairo, Egypt
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Liu H, Gong J, Chabot D, Miller SS, Cui SW, Ma J, Zhong F, Wang Q. Incorporation of polysaccharides into sodium caseinate-low melting point fat microparticles improves probiotic bacterial survival during simulated gastrointestinal digestion and storage. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2015.10.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Alonso S. Novel Preservation Techniques for Microbial Cultures. NOVEL FOOD FERMENTATION TECHNOLOGIES 2016. [DOI: 10.1007/978-3-319-42457-6_2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Cortes Patino SA, Bonilla RR. Polymers selection for a liquid inoculant of Azospirillum brasilense based on the Arrhenius thermodynamic model. ACTA ACUST UNITED AC 2015. [DOI: 10.5897/ajb2015.14777] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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15
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Sorokulova I, Olsen E, Vodyanoy V. Biopolymers for sample collection, protection, and preservation. Appl Microbiol Biotechnol 2015; 99:5397-406. [DOI: 10.1007/s00253-015-6681-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 05/05/2015] [Accepted: 05/06/2015] [Indexed: 12/22/2022]
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Jahanshahi-Anbuhi S, Pennings K, Leung V, Liu M, Carrasquilla C, Kannan B, Li Y, Pelton R, Brennan JD, Filipe CDM. Pullulan Encapsulation of Labile Biomolecules to Give Stable Bioassay Tablets. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403222] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Jahanshahi-Anbuhi S, Pennings K, Leung V, Liu M, Carrasquilla C, Kannan B, Li Y, Pelton R, Brennan JD, Filipe CDM. Pullulan Encapsulation of Labile Biomolecules to Give Stable Bioassay Tablets. Angew Chem Int Ed Engl 2014; 53:6155-8. [PMID: 24764260 DOI: 10.1002/anie.201403222] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Sana Jahanshahi-Anbuhi
- Departments of Chemical Engineering, Chemistry & Chemical Biology, and Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4M1 (Canada)
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Prakash O, Nimonkar Y, Shouche YS. Practice and prospects of microbial preservation. FEMS Microbiol Lett 2012; 339:1-9. [DOI: 10.1111/1574-6968.12034] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Revised: 10/11/2012] [Accepted: 10/17/2012] [Indexed: 02/06/2023] Open
Affiliation(s)
- Om Prakash
- Microbial Culture Collection; National Centre for Cell Science; Pune; Maharastra; India
| | - Yogesh Nimonkar
- Microbial Culture Collection; National Centre for Cell Science; Pune; Maharastra; India
| | - Yogesh S. Shouche
- Microbial Culture Collection; National Centre for Cell Science; Pune; Maharastra; India
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Pazzetto R, Ferreira SBDS, Santos EJS, Moriwaki C, Guedes TA, Matioli G. Preservation of Bacillus firmus strain 37 and optimization of cyclodextrin biosynthesis by cells immobilized on loofa sponge. Molecules 2012; 17:9476-88. [PMID: 22874792 PMCID: PMC6268496 DOI: 10.3390/molecules17089476] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 07/18/2012] [Accepted: 07/21/2012] [Indexed: 11/16/2022] Open
Abstract
The preservation of Bacillus firmus strain 37 cells by lyophilization was evaluated and response surface methodology (RSM) was used to optimize the β-cyclodextrin (β-CD) production by cells immobilized on loofa sponge. Interactions were studied with the variables temperature, pH and dextrin concentration using a central composite design (CCD). Immobilization time influence on β-CD production was also investigated. B. firmus strain 37 cells remained viable after one year of storage, showing that the lyophilization is a suitable method for preservation of the microorganism. From the three-dimensional diagrams and contour plots, the best conditions for β-CD production were determined: temperature 60 °C, pH 8, and 18% dextrin. Considering that the amount of dextrin was high, a new assay was carried out, in which dextrin concentrations of 10, 15, and 18% were tested and the temperature of 60 °C and pH 8 were maintained. The results achieved showed very small differences and therefore, for economic reasons, the use of 10% dextrin is suggested. Increasing the immobilization time of cells immobilized on synthetic sponge the β-CD production decreased and did not change for cells immobilized on loofa sponge. The results of this research are important for microorganism preservation and essential in the optimization of the biosynthesis of CD.
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Affiliation(s)
- Rúbia Pazzetto
- Department of Pharmacy, State University of Maringá (UEM), Av. Colombo, 5790, Maringá-PR 87020-900, Brazil
| | | | - Elder James Silva Santos
- Department of Pharmacy, State University of Maringá (UEM), Av. Colombo, 5790, Maringá-PR 87020-900, Brazil
| | - Cristiane Moriwaki
- Department of Pharmacy, State University of Maringá (UEM), Av. Colombo, 5790, Maringá-PR 87020-900, Brazil
| | - Teresinha Aparecida Guedes
- Department of Statistics, State University of Maringá (UEM), Av. Colombo, 5790, Maringá-PR 87020-900, Brazil
| | - Graciette Matioli
- Department of Pharmacy, State University of Maringá (UEM), Av. Colombo, 5790, Maringá-PR 87020-900, Brazil
- Author to whom correspondence should be addressed; ; Tel.: +55-44-3011-3868; Fax: +55-44-3011-4119
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Safeguarding bacterial resources promotes biotechnological innovation. Appl Microbiol Biotechnol 2012; 94:565-74. [DOI: 10.1007/s00253-011-3797-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Revised: 11/24/2011] [Accepted: 11/25/2011] [Indexed: 10/28/2022]
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21
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Sorokulova I, Watt J, Olsen E, Globa L, Moore T, Barbaree J, Vodyanoy V. Natural biopolymer for preservation of microorganisms during sampling and storage. J Microbiol Methods 2011; 88:140-6. [PMID: 22093998 DOI: 10.1016/j.mimet.2011.11.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 10/26/2011] [Accepted: 11/01/2011] [Indexed: 10/15/2022]
Abstract
Stability of microbial cultures during sampling and storage is a vital issue in various fields of medicine, biotechnology, food science, and forensics. We have developed a unique bacterial preservation process involving a non-toxic, water-soluble acacia gum polymer that eliminates the need for refrigerated storage of samples. The main goal of this study is to characterize the efficacy of acacia gum polymer for preservation of pathogenic bacteria (Bacillus anthracis and methicillin-resistant Staphylococcus aureus-MRSA) on different materials, used for swabbing and filtration: cotton, wool, polyester, rayon, charcoal cloth, and Whatman paper. Acacia gum polymer used for preservation of two pathogens has been shown to significantly protect bacteria during dehydration and storage in all tested samples at the range of temperatures (5-45°C for MRSA and 40-90°C for B. anthracis). Our results showed higher recovery as well as higher viability during the storage of both bacteria in all materials with acacia gum. Addition of acacia gum polymer to swabbing materials or filters will increase efficacy of sample collection and identification of pathogenic bacteria from locations such as hospitals or the environment. Proposed approach can also be used for long-term storage of culture collections, since acacia gum contributes to viability and stability of bacterial cultures.
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Affiliation(s)
- Iryna Sorokulova
- Department of Anatomy, Physiology, and Pharmacology Auburn University, Auburn, AL 36849, USA
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Cheng KC, Demirci A, Catchmark JM. Pullulan: biosynthesis, production, and applications. Appl Microbiol Biotechnol 2011; 92:29-44. [DOI: 10.1007/s00253-011-3477-y] [Citation(s) in RCA: 274] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 06/28/2011] [Accepted: 07/13/2011] [Indexed: 11/25/2022]
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Ben-Yoav H, Melamed S, Freeman A, Shacham-Diamand Y, Belkin S. Whole-cell biochips for bio-sensing: integration of live cells and inanimate surfaces. Crit Rev Biotechnol 2010; 31:337-53. [PMID: 21190513 DOI: 10.3109/07388551.2010.532767] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Recent advances in the convergence of the biological, chemical, physical, and engineering sciences have opened new avenues of research into the interfacing of diverse biological moieties with inanimate platforms. A main aspect of this field, the integration of live cells with micro-machined platforms for high throughput and bio-sensing applications, is the subject of the present review. These unique hybrid systems are configured in a manner that ensures positioning of the cells in designated patterns, and enables cellular viability maintenance, and monitoring of cellular functionality. Here we review both animate and inanimate surface properties and how they affect cellular attachment, describe relevant modifications of both types of surfaces, list technologies for platform engineering and for cell deposition in the desired configurations, and discuss the influence of various deposition and immobilization methods on the viability and performance of the immobilized cells.
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Affiliation(s)
- Hadar Ben-Yoav
- Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, Tel Aviv University, Tel-Aviv, Israel
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