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Rusinova-Videva S, Ognyanov M, Georgiev Y, Petrova A, Dimitrova P, Kambourova M. Chemical characterization and biological effect of exopolysaccharides synthesized by Antarctic yeasts Cystobasidium ongulense AL 101 and Leucosporidium yakuticum AL 102 on murine innate immune cells. World J Microbiol Biotechnol 2022; 39:39. [PMID: 36512173 DOI: 10.1007/s11274-022-03477-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 11/18/2022] [Indexed: 12/15/2022]
Abstract
The current study aimed to investigate exopolysaccharides (EPSs) produced by two Antarctic yeasts isolated from soil and penguin feathers samples collected on Livingston Island (Antarctica). The strains were identified as belonging to the species Leucosporidium yakuticum (LY) and Cystobasidium ongulense (CO) based on molecular genetic analysis. The EPS production was investigated using submerged cultivation. Different chemical, chromatographic, and spectral analyses were employed to characterize EPSs. LY accumulated 5.5 g/L biomass and 4.0 g/L EPS after 120 h of cultivation, while CO synthesized 2.1 g/L EPS at the end of cultivation, and the biomass amount reached 5.5 g/L. LY-EPS was characterized by a higher total carbohydrate content (80%) and a lower protein content (18%) by comparison with CO-EPS (62%, 30%). The LY-EPS mainly consisted of mannose (90 mol%), whereas CO-EPS had also glucose, galactose, and small amounts of uronic acids (8-5 mol%). Spectral analyses (FT-IR and 1D, 2D NMR) revealed that LY-EPS comprised a typical β-(1 → 4)-mannan. Branched (hetero)mannan, together with β/α-glucans constituted the majority of CO-EPS. Unlike LY-EPS, which had a high percentage of high molecular weight populations, CO-EPS displayed a large quantity of lower molecular weight fractions and a higher degree of heterogeneity. LY-EPS (100 ng/mL) elevated significantly interferon gamma (IFN-γ) production in splenic murine macrophages and natural killer (NK) cells. The results indicated that newly identified EPSs might affect IFN-γ signaling and in turn, might enhance anti-infectious responses. The data obtained also revealed the potential of EPSs and yeasts for practical application in biochemical engineering and biotechnology.
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Affiliation(s)
- Snezhana Rusinova-Videva
- Department of Biotechnology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000, Plovdiv, Bulgaria.
| | - Manol Ognyanov
- Laboratory of Biologically Active Substances, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000, Plovdiv, Bulgaria
| | - Yordan Georgiev
- Laboratory of Biologically Active Substances, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000, Plovdiv, Bulgaria
| | - Ani Petrova
- Laboratory of Biologically Active Substances, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000, Plovdiv, Bulgaria
| | - Petya Dimitrova
- Department of Immunology, Laboratory of Experimental Immunotherapy, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. Georgi Bonchev Str., 1113, Sofia, Bulgaria
| | - Margarita Kambourova
- Department of General Microbiology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. Georgi Bonchev Str., 1113, Sofia, Bulgaria
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Rusinova-Videva S, Kambourova M, Alipieva K, Nachkova S, Simova S. Metabolic profiling of Antarctic yeasts by proton nuclear magnetic resonance-based spectroscopy. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2018.1490201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Snezhana Rusinova-Videva
- Department of Applied Microbiology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
- Department of Botany, Faculty of Biology, University of Plovdiv “Paisii Hilendarski”, Plovdiv, Bulgaria
| | - Margarita Kambourova
- Department of Applied Microbiology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Kalina Alipieva
- Laboratory Chemistry of Natural Products, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Stefka Nachkova
- Department of Analytical Chemistry and Computer Chemistry, Faculty of Chemistry, University of Plovdiv “Paisii Hilendarski”, Plovdiv, Bulgaria
| | - Svetlana Simova
- Laboratory Bulgarian NMR Centre, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
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Batsalova T, Teneva I, Belkinova D, Stoyanov P, Rusinova-Videva S, Dzhambazov B. Assessment of Cadmium, Nickel and Lead Toxicity by Using Green Algae Scenedesmus Incrassatulus and Human Cell Lines: Potential In Vitro Test-Systems for Monitoring of Heavy Metal Pollution. ACTA ACUST UNITED AC 2017. [DOI: 10.17140/tfmoj-2-121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Rusinova-Videva S, Pavlova K, Georgieva K. Effect of Different Carbon Sources on Biosynthesis of Exopolysaccharide from Antarctic StrainCryptococcus LaurentiiAL62. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.5504/bbeq.2011.0121] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Rusinova-Videva S, Pavlova K, Panchev I, Georgieva K, Kuncheva M. Effect of Different Factors on Biosynthesis of Exopolysaccharide from Antarctic Yeast. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.1080/13102818.2010.10817891] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Pavlova K, Rusinova-Videva S, Kuncheva M, Kratchanova M, Gocheva M, Dimitrova S. Synthesis and characterization of an exopolysaccharide by antarctic yeast strain Cryptococcus laurentii AL₁₀₀. Appl Biochem Biotechnol 2010; 163:1038-52. [PMID: 20972644 DOI: 10.1007/s12010-010-9107-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2010] [Accepted: 10/10/2010] [Indexed: 11/30/2022]
Abstract
An exopolysaccharide-producing Antarctic yeast strain was selected and identified as Cryptococcus laurentii AL₁₀₀. The physiological properties of the strain and its ability to utilize and biotransform different carbon sources (pentoses, hexoses, and oligosaccharides) into exopolysaccharide and biomass were investigated. Sucrose was chosen as a suitable and accessible carbon source. The biosynthetic capacity of the strain was studied in its dynamics at different sucrose concentrations (20, 30, 40, and 50 g/L) and temperatures (22 and 24 °C). The maximum biopolymer quantity of 6.4 g/L was obtained at 40 g/L of sucrose, 22 °C temperature and 96-h fermentation duration. The newly synthesized microbial carbohydrate was a heteropolysaccharide having the following monosaccharide composition: arabinose, 61.1%; mannose, 15.0%; glucose, 12.0%; galactose, 5.9%; and rhamnose, 2.8%. It was characterized by polydispersity of the polymer molecule, 60% of it having molecular mass of 4200 Da. The exopolysaccharide demonstrated good emulsifying and stabilizing properties with regard to oil/water emulsions and a pronounced synergistic effect with other hydrocolloids such as xanthan gum, guar gum, and alginate.
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Affiliation(s)
- Kostantsa Pavlova
- Laboratory of Applied Biotechnologies, Institute of Microbiology, Bulgarian Academy of Sciences, 139 Ruski Blvd, Plovdiv 4000, Bulgaria
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