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Bikmurzin R, Maršalka A, Kalėdienė L. Solid-State 13C Nuclear Magnetic Resonance Study of Soluble and Insoluble β-Glucans Extracted from Candida lusitaniae. Molecules 2023; 28:8066. [PMID: 38138557 PMCID: PMC10745363 DOI: 10.3390/molecules28248066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
β-glucans are widely known for their biological activities. However, the choice of extraction method can significantly influence their structural characteristics, thereby potentially impacting their biological functions. In this paper, three fractions of β-glucans were obtained from Candida lusitaniae yeast via alkali and hot-water extraction methods and were analyzed using solid-state 13C nuclear magnetic resonance (NMR) spectroscopy. Solid-state NMR spectroscopy was used as a nondestructive technique that preserves the structure of the analyzed molecules. The results suggest that differences in the β-glucan structure are affected by the choice of extraction method. The main difference occurred in the 82-92 ppm region with signal presence suggesting that β-glucans have a linear structure when hot-water-extracted, which is absent in alkali-extracted fractions resulting in the acquisition of β-glucans with an ordered, possibly helical structure. A hot-water extracted water-insoluble (HWN) fraction consists of linear β-1,3-glucans with other signals indicating the presence of β-1,6-linked side chains, chitin and small amounts of α-glucan impurities. For those that are alkali-extracted, alkali-insoluble (AN) and water-soluble (AWS) fractions are structurally similar and consist of an ordered β-1,3-glucan structure with β-1,6-linked side chains and a significant amount of α-glucan and chitin in both fractions.
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Affiliation(s)
- Ruslan Bikmurzin
- Department of Microbiology and Biotechnology, Institute of Biosciences, Life Sciences Center, Vilnius University, Saulėtekio Ave. 7, LT-10257 Vilnius, Lithuania
- Department of Medical Technology and Dietetics, Faculty of Health Care, Vilniaus Kolegija/Higher Education Institution, Didlaukio Str. 45, LT-08303 Vilnius, Lithuania
| | - Arūnas Maršalka
- Institute of Chemical Physics, Faculty of Physics, Vilnius University, Saulėtekio Ave. 3, LT-10257 Vilnius, Lithuania;
| | - Lilija Kalėdienė
- Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius, Lithuania
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Starch Formates: Synthesis and Modification. Molecules 2021; 26:molecules26164882. [PMID: 34443470 PMCID: PMC8401097 DOI: 10.3390/molecules26164882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/10/2021] [Accepted: 08/11/2021] [Indexed: 11/17/2022] Open
Abstract
Starch can be efficiently converted into the corresponding formates homogeneously using N-formyl imidazole obtained by the reaction of 1,1′-carbonyldiimidazole and formic acid in dimethyl sulfoxide as a solvent. Starch formates are soluble in polar aprotic solvents, not susceptible against hydrolysis, and not meltable. Thermoplastics could be generated by conversion of starch formates with long-chain fatty acids exemplified by the conversion with lauroyl chloride in N,N-dimethylacetamide, leading to mixed starch laurate formates. The mixed esters show melting temperatures mainly dependent on the amount of laurate ester moieties.
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Dhahri M, Sioud S, Dridi R, Hassine M, Boughattas NA, Almulhim F, Al Talla Z, Jaremko M, Emwas AHM. Extraction, Characterization, and Anticoagulant Activity of a Sulfated Polysaccharide from Bursatella leachii Viscera. ACS OMEGA 2020; 5:14786-14795. [PMID: 32596616 PMCID: PMC7315596 DOI: 10.1021/acsomega.0c01724] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/27/2020] [Indexed: 05/31/2023]
Abstract
Bioactive compounds for drug discovery are increasingly extracted and purified from natural sources including marine organisms. Heparin is a therapeutic agent that has been used for several decades as an anticoagulant. However, heparin is known to cause many undesirable complications such as thrombocytopenia and risk of hemorrhage. Hence, there is a need to find alternatives to current widely used anticoagulant drugs. Here, we extract a sulfated polysaccharide from sea hare, that is, Bursatella leachii viscera, by enzymatic digestion. Several analytical approaches including elemental analysis, Fourier-transform infrared spectroscopy, nuclear magnetic resonance, and high-performance liquid chromatography-mass spectrometry analysis show that B. leachii polysaccharides have chemical structures similar to glycosaminoglycans. We explore the anticoagulant activity of the B. leachii extract using the activated partial thromboplastin time and the thrombin time. Our results demonstrate that the extracted sulfated polysaccharide has heparin-like anticoagulant activity, thus showing great promise as an alternative anticoagulant therapy.
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Affiliation(s)
- Manel Dhahri
- Biology Department,
Faculty of Science Yanbu, Taibah University, 46423 Yanbu El-Bahr, Saudi Arabia
| | - Salim Sioud
- Analytical Core Lab, King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Kingdom of Saudi
| | - Rihab Dridi
- Laboratory of Pharmacology,
Faculty of Medicine of Monastir, University
of Monastir, 5000 Monastir, Tunisia
| | - Mohsen Hassine
- Hematology Department, Fattouma Bourguiba University Hospital, 5000 Monastir, Tunisia
| | - Naceur A. Boughattas
- Laboratory of Pharmacology,
Faculty of Medicine of Monastir, University
of Monastir, 5000 Monastir, Tunisia
| | - Fatimah Almulhim
- Biological and Environmental Science and
Engineering (BESE), King Abdullah University
of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia
| | - Zeyad Al Talla
- ANPERC, King Abdullah University
of Science and Technology (KAUST), 23955-6900 Thuwal, Kingdom of Saudi
| | - Mariusz Jaremko
- Biological and Environmental Science and
Engineering (BESE), King Abdullah University
of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia
| | - Abdul-Hamid M. Emwas
- Core Labs, King
Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Kingdom of Saudi
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Abdel-Mohsen A, Abdel-Rahman R, Kubena I, Kobera L, Spotz Z, Zboncak M, Prikryl R, Brus J, Jancar J. Chitosan-glucan complex hollow fibers reinforced collagen wound dressing embedded with aloe vera. Part I: Preparation and characterization. Carbohydr Polym 2020; 230:115708. [DOI: 10.1016/j.carbpol.2019.115708] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 11/27/2019] [Accepted: 12/05/2019] [Indexed: 12/22/2022]
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Giroto AS, Garcia RH, Colnago LA, Klamczynski A, Glenn GM, Ribeiro C. Role of urea and melamine as synergic co-plasticizers for starch composites for fertilizer application. Int J Biol Macromol 2020; 144:143-150. [DOI: 10.1016/j.ijbiomac.2019.12.094] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 12/05/2019] [Accepted: 12/11/2019] [Indexed: 10/25/2022]
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Hong Y, Ying T. Characterization of a chitin-glucan complex from the fruiting body of Termitomyces albuminosus (Berk.) Heim. Int J Biol Macromol 2019; 134:131-138. [DOI: 10.1016/j.ijbiomac.2019.04.198] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/21/2019] [Accepted: 04/30/2019] [Indexed: 01/20/2023]
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Biopolymer strategy for the treatment of Wilson's disease. J Control Release 2018; 273:131-138. [DOI: 10.1016/j.jconrel.2018.01.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 01/16/2018] [Accepted: 01/23/2018] [Indexed: 01/13/2023]
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Kolsi RBA, Salah HB, Jardak N, Chaaben R, Jribi I, Feki AE, Rebai T, Jamoussi K, Allouche N, Blecker C, Belghith H, Belghith K. Sulphated polysaccharide isolated from Sargassum vulgare: Characterization and hypolipidemic effects. Carbohydr Polym 2017; 170:148-159. [PMID: 28521980 DOI: 10.1016/j.carbpol.2017.04.083] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 03/10/2017] [Accepted: 04/25/2017] [Indexed: 10/19/2022]
Abstract
A sulphated polysaccharide from brown algae Sargassum vulgare (SVSP) was extracted and examined with respect to chemical, structural characterization and hypolipidemic effects. SVSP consisted mainly of sulphate and total sugars with low levels of lipids and proteins. Its structure was studied by nuclear magnetic resonance (RMN), gas chromatography-mass spectrometry (GC-MS), infra-red spectroscopic, differential scanning calorimetry and X-ray diffraction analysis. Allowing us therefore to revealed that SVSP was composed of glucose, rhamnose, xylose, galactose, mannose and arabinose with XRD pattern that was typical for a semi-crystalline polymer and complexities of the spectra reflected its homogeneous structure. The administration of SVSP to obese rats is effective in lowering the body weight and inhibiting the lipase activity leading to notable regulation of lipid profile, increasing the activities of antioxidant enzymes, limiting lipid peroxidation; and protects liver-kidney functions proved by a decrease in the levels of toxicity parameters in blood, confirmed by histological study.
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Affiliation(s)
| | - Hichem Ben Salah
- Laboratory of chemistry of Natural Substances, Faculty of Sciences of Sfax, PB 802, 3018 Sfax, Tunisia
| | - Neila Jardak
- Research Unit of anatomy, histology and embryology, Faculty of Medicine Sfax, Tunisia
| | - Rim Chaaben
- Biochemistry Laboratory, CHU Hedi Chaker, Sfax, Tunisia
| | - Imed Jribi
- Biodiversity Unit and Aquatic Ecosystems, Faculty of Sciences of Sfax, 3038 Sfax, Tunisia
| | | | - Tarak Rebai
- Research Unit of anatomy, histology and embryology, Faculty of Medicine Sfax, Tunisia
| | | | - Noureddine Allouche
- Laboratory of chemistry of Natural Substances, Faculty of Sciences of Sfax, PB 802, 3018 Sfax, Tunisia
| | - Cristophe Blecker
- Unité de Technologie des Industries Agro-alimentaires, Faculté des Sciences Agronomiques de Gembloux, passage des Déportés 2, 5030 Gembloux, Belgium
| | - Hafedh Belghith
- Enzyme and Bioconversion Unit, Biotechnology Center of Sfax, Tunisia
| | - Karima Belghith
- Laboratory of Plant Biotechnology, Faculty of Sciences of Sfax, 3038 Sfax, Tunisia
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Urbanova M, Gajdosova M, Steinhart M, Vetchy D, Brus J. Molecular-Level Control of Ciclopirox Olamine Release from Poly(ethylene oxide)-Based Mucoadhesive Buccal Films: Exploration of Structure–Property Relationships with Solid-State NMR. Mol Pharm 2016; 13:1551-63. [DOI: 10.1021/acs.molpharmaceut.6b00035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Martina Urbanova
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
| | - Marketa Gajdosova
- Veterinary and Pharmaceutical University, Faculty of Pharmacy, Department of Pharmaceutics, Palacky Street 1946/1, 612 42 Brno, Czech Republic
| | - Miloš Steinhart
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
| | - David Vetchy
- Veterinary and Pharmaceutical University, Faculty of Pharmacy, Department of Pharmaceutics, Palacky Street 1946/1, 612 42 Brno, Czech Republic
| | - Jiri Brus
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
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Fan D, Ma W, Wang L, Huang J, Zhang F, Zhao J, Zhang H, Chen W. Determining the effects of microwave heating on the ordered structures of rice starch by NMR. Carbohydr Polym 2013; 92:1395-401. [DOI: 10.1016/j.carbpol.2012.09.072] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Revised: 09/26/2012] [Accepted: 09/26/2012] [Indexed: 11/29/2022]
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Adya AK, Gautam A, Zhang L, Varma A. Characterization of Piriformospora indica Culture Filtrate. SOIL BIOLOGY 2013. [DOI: 10.1007/978-3-642-33802-1_21] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Urbanova M, Brus J, Sedenkova I, Policianova O, Kobera L. Characterization of solid polymer dispersions of active pharmaceutical ingredients by 19F MAS NMR and factor analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 100:59-66. [PMID: 22421443 DOI: 10.1016/j.saa.2012.02.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 02/07/2012] [Accepted: 02/14/2012] [Indexed: 05/31/2023]
Abstract
In this contribution the ability of (19)F MAS NMR spectroscopy to probe structural variability of poorly water-soluble drugs formulated as solid dispersions in polymer matrices is discussed. The application potentiality of the proposed approach is demonstrated on a moderately sized active pharmaceutical ingredient (API, Atorvastatin) exhibiting extensive polymorphism. In this respect, a range of model systems with the API incorporated in the matrix of polvinylpyrrolidone (PVP) was prepared. The extent of mixing of both components was determined by T(1)((1)H) and T(1ρ)((1)H) relaxation experiments, and it was found that the API forms nanosized domains. Subsequently it was found out that the polymer matrix induces two kinds of changes in (19)F MAS NMR spectra. At first, this is a high-frequency shift reaching 2-3 ppm which is independent on molecular structure of the API and which results from the long-range polarization of the electron cloud around (19)F nucleus induced by electrostatic fields of the polymer matrix. At second, this is broadening of the signals and formation of shoulders reflecting changes in molecular arrangement of the API. To avoid misleading in the interpretation of the recorded (19)F MAS NMR spectra, because both the contributions act simultaneously, we applied chemometric approach based on multivariate analysis. It is demonstrated that factor analysis of the recorded spectra can separate both these spectral contributions, and the subtle structural differences in the molecular arrangement of the API in the nanosized domains can be traced. In this way (19)F MAS NMR spectra of both pure APIs and APIs in solid dispersions can be directly compared. The proposed strategy thus provides a powerful tool for the analysis of new formulations of fluorinated pharmaceutical substances in polymer matrices.
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Affiliation(s)
- Martina Urbanova
- Department of NMR Spectroscopy, Institute of Macromolecular Chemistry, Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic.
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