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Farfan Pajuelo DG, Carpio Mamani M, Maraza Choque GJ, Chachaque Callo DM, Cáceda Quiroz CJ. Effect of Lyoprotective Agents on the Preservation of Survival of a Bacillus cereus Strain PBG in the Freeze-Drying Process. Microorganisms 2023; 11:2705. [PMID: 38004717 PMCID: PMC10673073 DOI: 10.3390/microorganisms11112705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/26/2023] Open
Abstract
Lyophilization is a widely employed long-term preservation method in which the bacterial survival rate largely depends on the cryoprotectant used. Bacillus cereus strain PBC was selected for its ability to thrive in environments contaminated with arsenic, lead, and cadmium, tolerate 500 ppm of free cyanide, and the presence of genes such as ars, cad, ppa, dap, among others, associated with the bioremediation of toxic compounds and enterotoxins (nheA, nheB, nheC). Following lyophilization, the survival rates for Mannitol 2.5%, Mannitol 10%, and Glucose 1% were 98.02%, 97.12%, and 96.30%, respectively, with the rates being lower than 95% for other sugars. However, during storage, for the same sugars, the survival rates were 78.71%, 97.12%, and 99.97%, respectively. In the cake morphology, it was found that the lyophilized morphology showed no relationship with bacterial survival rate. The best cryoprotectant for the PBC strain was 1% glucose since it maintained constant and elevated bacterial growth rates during storage, ensuring that the unique characteristics of the bacterium were preserved over time. These findings hold significant implications for research as they report a new Bacillus cereus strain with the potential to be utilized in bioremediation processes.
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Affiliation(s)
| | | | | | | | - César Julio Cáceda Quiroz
- Bioremediation Laboratory, Jorge Basadre Grohmann National University, Tacna 230001, Peru; (D.G.F.P.); (M.C.M.); (G.J.M.C.); (D.M.C.C.)
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Moreno-Figueroa LD, Quiroz-Guzmán E, Tovar-Ramírez D, Palestino G, Cisneros-Covarrubias CA, Hernández-Adame L. Use of Trehalose as an Additive to Bacteriophage Vb_Pd_PDCC-1: Long-Term Preservation Analysis and Its Biocontrol Against Vibrio diabolicus Infection. Curr Microbiol 2023; 80:372. [PMID: 37843653 DOI: 10.1007/s00284-023-03487-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 09/20/2023] [Indexed: 10/17/2023]
Abstract
Phage therapy is a promising alternative to control bacterial diseases and the increasing problem of antibiotic resistance. In this sense, this research evaluates the viability of lyophilized vibrio phage vB_Pd_PDCC-1 using trehalose as a preservative excipient at different concentrations (4, 2, 1, and 0.5% w/v) and its potential for phage therapy application against a pathogenic bacteria Vibrio diabolicus in brine shrimp nauplii (Artemia franciscana). The lyophilized phages were stored at 4 and 23 °C and rehydrated using biological sterile saline solution to test their viability at days 1, 15, and 60 post-lyophilization. The results showed that trehalose is beneficial in maintaining the viability of post-lyophilization phages (without titer losses) at 4 °C and even at room temperature (23 °C). When lyophilized phages with 4% w/v trehalose concentration were stored at 23 °C, they had not titer losses among the trials; viability and titer concentration were maintained up to 60 days at log 7. The use of lyophilized phage PDCC-1 increased brine shrimp survival and reduced Vibrio concentrations. The present study has identified trehalose as a promising lyophilization excipient to effectively preserve lyophilized bacteriophages for biotechnological applications and long-term storage.
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Affiliation(s)
- Luis Daniel Moreno-Figueroa
- Nanotechnology and Microbial Biocontrol Group, Centro de Investigaciones Biológicas del Noroeste, 23096, La Paz, Baja California Sur, Mexico
| | - Eduardo Quiroz-Guzmán
- Centro de Investigaciones Biológicas del Noroeste S.C. (CIBNOR), Av. IPN 195, Col Playa Palo de Sta. Rita Sur, C.P. 23096, La Paz, B.C.S, Mexico
| | - Dariel Tovar-Ramírez
- Centro de Investigaciones Biológicas del Noroeste S.C. (CIBNOR), Av. IPN 195, Col Playa Palo de Sta. Rita Sur, C.P. 23096, La Paz, B.C.S, Mexico
| | - Gabriela Palestino
- Laboratorio de Biopolímeros y Nanoestructuras, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, C.P. 78210, San Luis Potosí, Mexico
| | - Cándida A Cisneros-Covarrubias
- Laboratorio de Biopolímeros y Nanoestructuras, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, C.P. 78210, San Luis Potosí, Mexico
| | - Luis Hernández-Adame
- Nanotechnology and Microbial Biocontrol Group, Centro de Investigaciones Biológicas del Noroeste, 23096, La Paz, Baja California Sur, Mexico.
- Cátedras CONACYT-Centro de Investigaciones Biológicas del Noroeste, 23096, La Paz, Baja California Sur, Mexico.
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Bosch B, Moutaharrik S, Gazzaniga A, Hiippala K, Santos HA, Maroni A, Satokari R. Development of a time-dependent oral colon delivery system of anaerobic Odoribacter splanchnicus for bacteriotherapy. Eur J Pharm Biopharm 2023; 190:73-80. [PMID: 37479064 DOI: 10.1016/j.ejpb.2023.07.010] [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: 05/16/2023] [Revised: 07/05/2023] [Accepted: 07/18/2023] [Indexed: 07/23/2023]
Abstract
Odoribacter (O.) splanchnicus is an anaerobic member of the human intestinal microbiota. Its decrease in abundance has been associated with inflammatory bowel disease (IBD), non-alcoholic fatty liver, and cystic fibrosis. Considering the anti-inflammatory properties of O. splanchnicus and its possible use for IBD, intestinal isolate O. splanchnicus 57 was here formulated for oral colonic release based on a time-dependent strategy. Freeze-drying protocol was determined to ensure O. splanchnicus 57 viability during the process. Disintegrating tablets, containing the freeze-dried O. splanchnicus 57, were manufactured by direct compression and coated by powder-layering technique with hydroxypropyl methylcellulose (Methocel™ E50) in a tangential-spray fluid bed. Eudragit® L was then applied by spray-coating in a top-spray fluid bed. Double-coated tablets were tested for release, showing gastric resistance properties and, as desired, lag phases of reproducible duration prior to release in phosphate buffer pH 6.8. The cell viability and anti-inflammatory activity of the strain were assessed after the main manufacturing steps. While freeze-drying did not affect bacterial viability, the tableting and coating processes were more stressful. Nonetheless, O. splanchnicus 57 cells survived manufacturing and the final formulations had 106-107 CFU/g of viable cells. The strain kept its anti-inflammatory properties after tableting and coating, reducing Escherichia coli lipopolysaccharide-induced interleukin-8 cytokine release from HT-29 cells. Overall, O. splanchnicus 57 strain was formulated successfully for oral colon delivery, opening new ways to formulate pure cultures of single anaerobic strains or mixtures for oral delivery.
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Affiliation(s)
- Berta Bosch
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
| | - Saliha Moutaharrik
- Sez. di Tecnologia e Legislazione Farmaceutiche "Maria Edvige Sangalli", Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy.
| | - Andrea Gazzaniga
- Sez. di Tecnologia e Legislazione Farmaceutiche "Maria Edvige Sangalli", Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
| | - Kaisa Hiippala
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Hélder A Santos
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland; Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, Groningen 9713 AV, The Netherlands; W.J. Kolff Institute for Biomedical Engineering and Materials Science, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, Groningen 9713 AV, The Netherlands
| | - Alessandra Maroni
- Sez. di Tecnologia e Legislazione Farmaceutiche "Maria Edvige Sangalli", Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
| | - Reetta Satokari
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
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Guo N, Song Y, Yan J, Jiang M, Xu Y, Li Z, Wei Q. The Effect of Cryopreservation on the Survival of Nocardia farcinica and Yersinia pestis vaccine strains. Biopreserv Biobank 2023; 21:397-406. [PMID: 36126300 DOI: 10.1089/bio.2022.0049] [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] [Indexed: 11/13/2022] Open
Abstract
Pathogenic microorganisms are valuable biological resources, closely related to biosecurity, human health, environmental protection, and renewable energy. It is very important to properly preserve the microbial resources by methods to maintain the purity, viability, and integrity, and to avoid prolonged degradation. The present work aims to explore the cryopreservation technology of Nocardia farcinica (Gram-positive bacteria) and Yersinia pestis vaccine strains (Gram-negative bacteria). The effects of cryoprotectants (CPAs), freezing temperature, and freeze-thaw cycles on the two bacteria in the cryopreservation process were studied. The results showed that the addition of CPAs (glycerol, propylene glycol, sucrose, glucose, l-carnitine, l-proline, and skim milk) significantly enhanced the survival rates of the N. farcinica and Y. pestis vaccine strains. However, high concentrations of CPAs can produce biochemical toxicity in the two pathogens. The utilization of composite CPAs not only reduced the toxicity but also improved the survival rates of samples during cryopreservation. The optimal composite CPA for N. farcinica is 0.292 M sucrose, 0.62 M l-carnitine, and 2.82 M glycerol. The optimal composite CPA for Y. pestis is 0.62 M l-carnitine, 8.46 M glycerin, and 0.292 M sucrose. The results showed that the quality of the strains stored at -80°C and -196°C was better. For the case of freeze-thaw cycles, the two pathogens have different degrees of reduction, and the survival rate of Y. pestis decreased more than that of N. farcinica. The uniform distribution of bacteria in CPAs can form uniform nucleation sites in the solution system, which is beneficial to the cryopreservation of strains, as can be seen from the experimental results from a differential scanning calorimeter. This study may provide a reference for better preservation of precious natural biological resources of pathogenic microorganisms.
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Affiliation(s)
- Ning Guo
- Institute of Biothermal Science & Technology, University of Shanghai for Science and Technology, Shanghai, China
| | - Yang Song
- National Pathogen Resource Center (NPRC), Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jianing Yan
- Institute of Biothermal Science & Technology, University of Shanghai for Science and Technology, Shanghai, China
| | - Mengnan Jiang
- National Pathogen Resource Center (NPRC), Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yi Xu
- Institute of Biothermal Science & Technology, University of Shanghai for Science and Technology, Shanghai, China
| | - Zhenjun Li
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Qiang Wei
- National Pathogen Resource Center (NPRC), Chinese Center for Disease Control and Prevention, Beijing, China
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Sun W, Nguyen QD, Süli BK, Alarawi F, Szécsi A, Gupta VK, Friedrich LF, Gere A, Bujna E. Microencapsulation and Application of Probiotic Bacteria Lactiplantibacillus plantarum 299v Strain. Microorganisms 2023; 11:microorganisms11040947. [PMID: 37110370 PMCID: PMC10144244 DOI: 10.3390/microorganisms11040947] [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: 03/13/2023] [Revised: 03/28/2023] [Accepted: 03/31/2023] [Indexed: 04/29/2023] Open
Abstract
Microencapsulation is an up-and-coming technology for maintaining the viability of probiotics. However, the effect of core-to-wall ratios and ratios of polysaccharides on the protection of the Lactiplantibacillus plantarum 299v strain has not been deeply discussed. Lyophilization of the Lp. plantarum 299v strain was conducted, and different core-to-wall ratios and ratios of maltodextrin (MD) and resistant starch (RS) were applied. Results demonstrated that the content of MD and RS had an influence on the yield and bulk density in both core-to-wall ratios (1:1 and 1:1.5). In addition, samples coated with a core-to-wall ratio of 1:1.5 had significantly higher viability than those coated with a core-to-wall ratio of 1:1. Moreover, samples coated with core-to-wall ratios of 1:1 and MD:RS 1:1, as well as core-to-wall ratios of 1:1.5 and MD:RS 3:1, had the highest cell number after simulated gastric fluid and simulated intestinal fluid testing, respectively. Furthermore, the optimal formulation for the application of microencapsulated Lp. plantarum 299v in apple juice (serving as a functional beverage) is listed as follows: core-to-wall ratios of 1:1 and MD:RS 1:1, with the fortification method, and stored at 4 °C. After 11 weeks of storage, the cell count was 8.28 log (CFU/mL). This study provided a strategy for Lp. plantarum 299v to achieve high viability in long-term storage and provides an application in functional apple beverages.
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Affiliation(s)
- Weizhe Sun
- Department of Bioengineering and Alcoholic Drink Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 45, H-1118 Budapest, Hungary
| | - Quang D Nguyen
- Department of Bioengineering and Alcoholic Drink Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 45, H-1118 Budapest, Hungary
| | - Botond Kálmán Süli
- Department of Bioengineering and Alcoholic Drink Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 45, H-1118 Budapest, Hungary
| | - Firas Alarawi
- Department of Bioengineering and Alcoholic Drink Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 45, H-1118 Budapest, Hungary
| | - Anett Szécsi
- Department of Bioengineering and Alcoholic Drink Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 45, H-1118 Budapest, Hungary
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK
| | - László Ferenc Friedrich
- Department of Livestock and Food Preservation Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 45, H-1118 Budapest, Hungary
| | - Attila Gere
- Department of Post-Harvest Technology, Trade, Supply Chain and Sensory Evaluation, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Villányi út 29-43, H-1118 Budapest, Hungary
| | - Erika Bujna
- Department of Bioengineering and Alcoholic Drink Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Ménesi út 45, H-1118 Budapest, Hungary
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Designing a Waste-Based Culture Medium for the Production of Plant Growth Promoting Microorganisms Based on Cladodes Juice from Opuntia ficus-indica Pruning. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8050225] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The production of beneficial microorganisms is the first step to obtain a commercial-based product for application in agriculture. In this study, prickly pear (Opuntia ficus-indica) pruning waste was evaluated as a raw material for the production of large amounts of Plant Growth Promoting Microorganisms (PGPMs) reducing the number of generated wastes. Specifically, five PGPMs constituting a synthetic microbial consortium with complementing plant growth-promoting traits were grown on a laboratory scale and, subsequently, on a pilot scale using a 21-L bioreactor. Primarily, the physical-chemical characterization of the culture medium obtained from the juice of Opuntia cladodes was carried out, revealing the presence of sugars and organic acids with different molar ratios. Compared to conventional media, the waste medium did not show significant differences in bacterial growth efficiency. Instead, the survival rates of the bacteria grown in cladodes juice media, after air-drying on zeolite or freeze-drying, were significantly higher than those observed when they were grown in conventional media. The present work is the first conducted on a pilot-scale that maximizes the production of PGPMs in submerged fermentation using cladodes juice from Opuntia, reducing both economic and environmental impacts associated with the generation of wastes.
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Maares M, Keil C, Pallasdies L, Schmacht M, Senz M, Nissen J, Kieserling H, Drusch S, Haase H. Zinc availability from zinc-enriched yeast studied with an in vitro digestion/Caco-2 cell culture model. J Trace Elem Med Biol 2022; 71:126934. [PMID: 35065468 DOI: 10.1016/j.jtemb.2022.126934] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 12/06/2021] [Accepted: 01/14/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND Organic zinc sources for the treatment of zinc deficiency or as a supplement to a specific diet are increasingly needed. Zinc-enriched yeast (ZnYeast) biomass is a promising nutritional supplement for this essential micronutrient. However, these products are not yet authorized in the European Union and a clear position from the European Food Safety Authority on the use of ZnYeast as a zinc supplement is pending, demanding more data on its bioavailability. OBJECTIVE The study aimed to produce a ZnYeast based on a Saccharomyces genus (S. pastorianus Rh), characterize its zinc enrichment quota, cellular distribution of zinc, and evaluate its zinc bioavailability after human digestion by comparing it to commonly used inorganic and organic zinc supplements (ZnO, ZnSO4, zinc gluconate, and zinc aspartate). METHOD AND MAIN FINDINGS The zinc-enriched S. pastorianus Rh contained 5.9 ± 1.0 mg zinc/g yeast, which was predominantly localized on the cell surface according to its characterization on the microscale with scanning electron microscopy (SEM) with energy-dispersive X-ray (EDX). Combined experiments with a human in vitro digestion model and the in vitro intestinal cell model Caco-2 showed that intestinal zinc bioavailability of digested yeast biomass was comparable to the other zinc supplements, apart from ZnO, which was somewhat less bioavailable. Moreover, zinc released from digested ZnYeast was available for biological processes within the enterocytes, leading to mRNA upregulation of metallothionein, a biomarker of intestinal zinc status, and significantly elevated the cellular labile zinc pool. CONCLUSIONS Our findings demonstrated that ZnYeast represents a suitable nutritional source for organically bound zinc and highlighted optimization strategies for future production of dietary ZnYeast.
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Affiliation(s)
- Maria Maares
- Technische Universität Berlin, Department of Food Chemistry and Toxicology, Straße des 17. Juni 135, 10623, Berlin, Germany; TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany.
| | - Claudia Keil
- Technische Universität Berlin, Department of Food Chemistry and Toxicology, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Luise Pallasdies
- Technische Universität Berlin, Department of Food Chemistry and Toxicology, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Maximilian Schmacht
- Department Bioprocess Engineering and Applied Microbiology, Research and Teaching Institute for Brewing in Berlin, Seestraße 13, 13353, Berlin, Germany
| | - Martin Senz
- Department Bioprocess Engineering and Applied Microbiology, Research and Teaching Institute for Brewing in Berlin, Seestraße 13, 13353, Berlin, Germany
| | - Jörg Nissen
- Technische Universität Berlin, ZE Electron Microscopy, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Helena Kieserling
- Technische Universität Berlin, Department of Food Technology and Food Material Sciences, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Stephan Drusch
- Technische Universität Berlin, Department of Food Technology and Food Material Sciences, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Hajo Haase
- Technische Universität Berlin, Department of Food Chemistry and Toxicology, Straße des 17. Juni 135, 10623, Berlin, Germany; TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany.
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Jałowiecki Ł, Krzymińska I, Górska M, Płaza G, Ratman-Kłosińska I. Effect of the freeze-drying process on the phenotypic diversity of Pseudomonas putida strains isolated from the interior of healthy roots of Sida hermaphrodita: Phenotype microarrays (PMs). Cryobiology 2020; 96:145-151. [PMID: 32702362 DOI: 10.1016/j.cryobiol.2020.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/15/2020] [Accepted: 07/15/2020] [Indexed: 11/30/2022]
Abstract
The objective of this study was to research the effect of the freeze-drying process on the metabolic changes of Pseudomonas putida strains (E41, E42, R85) isolated from the interior of Sida hermaphrodita roots with the use of the phenotypic microarrays (PM) technology. The proposed method of the freeze-drying process with inulin as component lycoprotectant demonstrated a high bacterial survival ratio (BSR) immediately after freeze-drying and storage after 12 months. While, after 360 days of freeze-drying BSR decreased to value of 74.38. Pseudomonas putida strains were assayed on microplates PM1-PM5, and PM9-PM13 testing 664 different substrates. However, no significant differences in the use of C substrates were observed either before or after the freeze drying process. An insignificant negative effect of the freeze-drying on the use of these substrates was observed. The utilization of N, P and S sources was low or showed no metabolic activity for most of the compounds after freeze-drying. The freeze-drying process increased the sensitivity of the bacteria to antibiotics and selected chemicals. In this study, the freeze-drying process decreased the metabolic activities of the tested strains and their resistance to antibiotics and chemicals.
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Affiliation(s)
- Łukasz Jałowiecki
- Environmental Microbiology Unit, Institute for Ecology of Industrial Areas, Kossutha 6, 40-844, Katowice, Poland
| | - Izabela Krzymińska
- Department of Microbiology, Institute of Microbial Technologies, NSZZ Solidarnosc 9 Av., 62-700, Turek, Poland
| | - Magdalena Górska
- ProBiotics Polska Magdalena Górska, Bratuszyn 21, 62-720, Brudzew, Poland
| | - Grażyna Płaza
- Environmental Microbiology Unit, Institute for Ecology of Industrial Areas, Kossutha 6, 40-844, Katowice, Poland.
| | - Izabela Ratman-Kłosińska
- Office of Projects Coordination, Marketing and Research Commercialisation, Institute for Ecology of Industrial Areas, Kossutha 6, 40-844, Katowice, Poland
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