1
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Nayak A, Dunne J, Kinsella M, Lennon CM. Development of a rapid quantitative method of analysis of carbohydrate fatty acid ester reaction mixtures using 1H qNMR. Carbohydr Res 2024; 540:109143. [PMID: 38759343 DOI: 10.1016/j.carres.2024.109143] [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: 01/23/2024] [Revised: 04/27/2024] [Accepted: 05/02/2024] [Indexed: 05/19/2024]
Abstract
Two new analytical methods, applying absolute 1H qNMR, were developed to monitor product yield and quantify unreacted carbohydrate and fatty acid reactants, in the synthesis of carbohydrate fatty acid esters (CFAE). These methods provide a mass balance of the crude reaction mixtures and diversify the analytical screening and quantitation approaches available within the synthesis of these molecules. Both methods were validated for the model reaction of methyl α-d-glucopyranoside (MAG) and lauric acid (LA) to form the mono ester product, methyl 6-O-dodecanoyl-α-d-glucopyranoside. Analysis in CD3OD by 1H qNMR, with fumaric acid (FA) as an internal standard (IS), allowed monitoring of all reaction components. Alternatively, using CDCl3 and (E)-stilbene as IS enabled the analysis of CFAE and fatty acid. Parameters calculated for method validation included specificity and selectivity, linearity, accuracy, intermediate precision, limit of detection (LOD), limit of quantification (LOQ) and robustness. Both methods provided excellent linearity with R2 > 0.997. The accuracy, precision, and robustness of the method in CD3OD was <2 % uncertainty making it suitable for complete reaction analysis. The method completed in CDCl3 resulted in accuracy, intermediate precision, and robustness of <5 %, except for accuracy in the lowest levels of concentration (>5 %). For all related analytes in the CD3OD and CDCl3 methods, the LOD and LOQ were determined to ensure applicability for the intended use in the assessment of reaction crude composition. Finally, the system suitability was assessed in a scaled lipase catalysed CFAE synthetic reaction. The determined qNMR product yields were verified against isolated purified product yields with <5 % uncertainty.
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Affiliation(s)
- Abinash Nayak
- Pharmaceutical and Molecular Biotechnology Research Centre (PMBRC), South East Technological University, Cork Road, Waterford City, Co. Waterford, X91 K0EK, Ireland
| | - Julie Dunne
- School of Food Science and Environmental Health, Technological University Dublin, Park House Grangegorman, 191 North Circular Road, D07 EWV4, Ireland
| | - Michael Kinsella
- Pharmaceutical and Molecular Biotechnology Research Centre (PMBRC), South East Technological University, Cork Road, Waterford City, Co. Waterford, X91 K0EK, Ireland
| | - Claire M Lennon
- Pharmaceutical and Molecular Biotechnology Research Centre (PMBRC), South East Technological University, Cork Road, Waterford City, Co. Waterford, X91 K0EK, Ireland.
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2
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Said G, Ali A, Ahmad L. Design, semi-synthesis of soft coral-derived Aspergillus sp. secondary metabolite geodin derivatives and their antibacterial activities. Nat Prod Res 2024:1-9. [PMID: 38462767 DOI: 10.1080/14786419.2024.2326990] [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: 10/25/2023] [Accepted: 02/27/2024] [Indexed: 03/12/2024]
Abstract
A series of novel ester derivatives 2 - 7, of natural product geodin 1, isolated from the soft coral-derived fungus Aspergillus sp., were designed and semi-synthesised through one step reaction with high yield. Compound 5 showed strong antifouling inhibitory activities with MIC of 4.80 μM while compound 4 showed selective inhibitory activities with MICs values 8.59 μM against Aeromonas salmonicida and Pseudomonas aeruginosa (Sea-Nine 211, MIC = 0.27 μM). Compounds 3, 4 and 6 showed potent anti-pathogenic inhibitory activities with MICs of 2.29 μM, 4.29 μM and 4.56 μM respectively against Staphylococcus aureus (Ciprofloxacin, MIC = 0.156 μM). Compound 2 showed weak inhibitory activity against A. salmonicida with MIC 18.75 μM (Sea-Nine 211, MIC = 0.27 μM) and with MICs 9.38 μM against S. aureus (ciprofloxacin, MIC = 0.156 μM). However, compound 7 showed very low antibacterial activities with MIC = >20 μM. The preliminary structure-activity relationships of compounds 2 - 7 further prove that the modification of 4-OH group of natural product geodin 1 improves the antibacterial activities such as antifouling and anti-pathogenic activities.
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Affiliation(s)
- Gulab Said
- Department of Chemistry, Women University Swabi, Swabi, Pakistan
| | - Amjad Ali
- Center of Excellence in Marine Biology, University of Karachi, Karachi, Pakistan
| | - Latif Ahmad
- Department of Botany, Women University Swabi, Swabi, Pakistan
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3
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Verboni M, Perinelli DR, Buono A, Campana R, Sisti M, Duranti A, Lucarini S. Sugar-Based Monoester Surfactants: Synthetic Methodologies, Properties, and Biological Activities. Antibiotics (Basel) 2023; 12:1500. [PMID: 37887201 PMCID: PMC10604170 DOI: 10.3390/antibiotics12101500] [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: 08/13/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/28/2023] Open
Abstract
Glycolipids are biocompatible and biodegradable amphiphilic compounds characterized by a great scientific interest for their potential applications in various technological areas, including pharmaceuticals, cosmetics, agriculture, and food production. This report summarizes the available synthetic methodologies, physicochemical properties, and biological activity of sugar fatty acid ester surfactants, with a particular focus on 6-O-glucose, 6-O-mannose, 6-O-sucrose, and 6'-O-lactose ones. In detail, the synthetic approaches to this class of compounds, such as enzymatic lipase-catalyzed and traditional chemical (e.g., acyl chloride, Steglich, Mitsunobu) esterifications, are reported. Moreover, aspects related to the surface activity of these amphiphiles, such as their ability to decrease surface tension, critical micelle concentration, and emulsifying and foaming ability, are described. Biological applications with a focus on the permeability-enhancing effect across the skin or mucosa, antimicrobial and antifungal activities, as well as antibiofilm properties, are also presented. The information reported here on sugar-based ester surfactants is helpful to broaden the interest and the possible innovative applications of this class of amphiphiles in different technological fields in the future.
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Affiliation(s)
- Michele Verboni
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (M.V.); (A.B.); (R.C.); (M.S.); (S.L.)
| | - Diego Romano Perinelli
- School of Pharmacy, University of Camerino, Via Gentile III da Varano, 62032 Camerino, Italy;
| | - Alessandro Buono
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (M.V.); (A.B.); (R.C.); (M.S.); (S.L.)
| | - Raffaella Campana
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (M.V.); (A.B.); (R.C.); (M.S.); (S.L.)
| | - Maurizio Sisti
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (M.V.); (A.B.); (R.C.); (M.S.); (S.L.)
| | - Andrea Duranti
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (M.V.); (A.B.); (R.C.); (M.S.); (S.L.)
| | - Simone Lucarini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (M.V.); (A.B.); (R.C.); (M.S.); (S.L.)
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4
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Ahmmed F, Al-Mijalli SH, Abdallah EM, Eissa IH, Ali F, Bhat AR, Jamalis J, Ben Hadda T, Kawsar SMA. Galactoside-Based Molecule Enhanced Antimicrobial Activity through Acyl Moiety Incorporation: Synthesis and In Silico Exploration for Therapeutic Target. Pharmaceuticals (Basel) 2023; 16:998. [PMID: 37513910 PMCID: PMC10385442 DOI: 10.3390/ph16070998] [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: 06/16/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
In this study, a series of galactoside-based molecules, compounds of methyl β-d-galactopyranoside (MDGP, 1), were selectively acylated using 2-bromobenzoyl chloride to obtain 6-O-(2-bromobenzoyl) substitution products, which were then transformed into 2,3,4-tri-O-6-(2-bromobenzoyl) compounds (2-7) with various nontraditional acyl substituents. The chemical structures of the synthesized analogs were characterized by spectroscopic methods and physicochemical and elemental data analyses. The antimicrobial activities of the compounds against five human pathogenic bacteria and two phyto-fungi were evaluated in vitro and it was found that the acyl moiety-induced synthesized analogs exhibited varying levels of antibacterial activity against different bacteria, with compounds 3 and 6 exhibiting broad-spectrum activity and compounds 2 and 5 exhibiting activity against specific bacteria. Compounds 3 and 6 were tested for MIC (minimum inhibitory concentration) and MBC (minimum bactericidal concentration) based on their activity. The synthesized analogs were also found to have potential as a source of new antibacterial agents, particularly against gram-positive bacteria. The antifungal results suggested that the synthesized analogs could be a potential source of novel antifungal agents. Moreover, cytotoxicity testing revealed that the compounds are less toxic. A structure-activity relationship (SAR) investigation revealed that the lauroyl chain [CH3(CH2)10CO-] and the halo-aromatic chain [3(/4)-Cl.C6H4CO-] in combination with sugar, had the most potent activity against bacterial and fungal pathogens. Density functional theory (DFT)-calculated thermodynamic and physicochemical parameters, and molecular docking, showed that the synthesized molecule may block dengue virus 1 NS2B/NS3 protease (3L6P). A 150 ns molecular dynamic simulation indicated stable conformation and binding patterns in a stimulating environment. In silico ADMET calculations suggested that the designed (MDGP, 1) had good drug-likeness values. In summary, the newly synthesized MDGP analogs exhibit potential antiviral activity and could serve as a therapeutic target for dengue virus 1 NS2B/NS3 protease.
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Affiliation(s)
- Faez Ahmmed
- Laboratory of Carbohydrate and Nucleoside Chemistry, Department of Chemistry, Faculty of Science, University of Chittagong, Chittagong 4331, Bangladesh
| | - Samiah Hamad Al-Mijalli
- Department of Biology, College of Sciences, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Emad M Abdallah
- Department of Science Laboratories, College of Science and Arts, Qassim University, Ar Rass 51921, Saudi Arabia
| | - Ibrahim H Eissa
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo 116884, Egypt
| | - Ferdausi Ali
- Department of Microbiology, Faculty of Biological Science, University of Chittagong, Chittagong 4331, Bangladesh
| | - Ajmal R Bhat
- Department of Chemistry, RTM Nagpur University, Nagpur 440033, India
| | | | - Taibi Ben Hadda
- Laboratory of Applied Chemistry & Environment, Faculty of Sciences, Mohammed Premier University, Oujda 60000, Morocco
| | - Sarkar M A Kawsar
- Laboratory of Carbohydrate and Nucleoside Chemistry, Department of Chemistry, Faculty of Science, University of Chittagong, Chittagong 4331, Bangladesh
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5
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Influence of different food models and storage temperatures on the bacterial growth inhibition by maltodextrin laurate and sucrose laurate and investigation of their cytotoxicity. Food Control 2023. [DOI: 10.1016/j.foodcont.2022.109295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Karami M, Faraji AR, Saremnezhad S, Soltani M. Synthesis and characterization of a lactose-based biosurfactant by a novel nanodendritic catalyst and evaluating its efficacy as an emulsifier in a food emulsion system. RSC Adv 2022; 12:32280-32296. [PMID: 36425678 PMCID: PMC9647696 DOI: 10.1039/d2ra06958j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/07/2022] [Indexed: 10/28/2023] Open
Abstract
Nonionic lactose fatty acid esters are a class of synthetic biosurfactants with various uses in the food, pharmaceutical, personal care, and cosmetic industries. The objective of this research was the preparation and full characterization of a series of novel metallic encapsulated magnetic core/dendrimer shell composites as catalysts (CoII/MnII G2.0L1/2@SCMBNP) and their use in the chemo- and regioselective synthesis of a biosurfactant for the first time. Surface-active properties (such as contact angle (CA), surface tension (SFT), interfacial tension (IFT), critical micelle concentration (CMC), hydrophilic-lipophilic balance (HLB), foamability (FA) & foam stability (FS), emulsion ability (EmA) & emulsion stability (EmS), surface excess (Γ) and free energy of adsorption (ΔG) were also determined for all synthesized biosurfactants. In comparison to other works, these results suggested that the synthesized lactose fatty acid esters have potential application as synthetic emulsifiers featuring surface properties and are comparable with Ryoto sugar ester L-1695 (sucrose laurate) & Tween-20 (polysorbate 20) as industrial emulsifiers. The optimized conditions for biosurfactant syntheses are 8 days at 2 : 1 molar ratio of lactose sugar to lauric acid at 50 °C. Lactose ester as a biosurfactant exhibited a decrease of SFT & IFT and was able to stabilize a 20% soybean O/W emulsion. Furthermore, high conversion & yield, excellent chemo- and regioselectivity, and high operational stability over 5 runs were achieved for CoII/MnII-G2.0L1/2@SCMBNP, indicating the suitable efficiency of the catalytic process.
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Affiliation(s)
- Maryam Karami
- Department of Food Science and Technology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University Tehran Iran
- Nutrition and Food Sciences Research Center, Tehran Medical Sciences, Islamic Azad University Tehran Iran
| | - Ali Reza Faraji
- Department of Organic Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University Tehran Iran
- Nutrition and Food Sciences Research Center, Tehran Medical Sciences, Islamic Azad University Tehran Iran
| | - Solmaz Saremnezhad
- Department of Food Science and Technology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University Tehran Iran
- Nutrition and Food Sciences Research Center, Tehran Medical Sciences, Islamic Azad University Tehran Iran
| | - Mostafa Soltani
- Department of Food Science and Technology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University Tehran Iran
- Nutrition and Food Sciences Research Center, Tehran Medical Sciences, Islamic Azad University Tehran Iran
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7
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Matin P, Hanee U, Alam MS, Jeong JE, Matin MM, Rahman MR, Mahmud S, Alshahrani MM, Kim B. Novel Galactopyranoside Esters: Synthesis, Mechanism, In Vitro Antimicrobial Evaluation and Molecular Docking Studies. Molecules 2022; 27:molecules27134125. [PMID: 35807371 PMCID: PMC9268324 DOI: 10.3390/molecules27134125] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/22/2022] [Accepted: 06/24/2022] [Indexed: 02/04/2023] Open
Abstract
One-step direct unimolar valeroylation of methyl α-D-galactopyranoside (MDG) mainly furnished the corresponding 6-O-valeroate. However, DMAP catalyzed a similar reaction that produced 2,6-di-O-valeroate and 6-O-valeroate, with the reactivity sequence as 6-OH > 2-OH > 3-OH,4-OH. To obtain novel antimicrobial agents, 6-O- and 2,6-di-O-valeroate were converted into several 2,3,4-tri-O- and 3,4-di-O-acyl esters, respectively, with other acylating agents in good yields. The PASS activity spectra along with in vitro antimicrobial evaluation clearly indicated that these MDG esters had better antifungal activities than antibacterial agents. To rationalize higher antifungal potentiality, molecular docking was conducted with sterol 14α-demethylase (PDB ID: 4UYL, Aspergillus fumigatus), which clearly supported the in vitro antifungal results. In particular, MDG ester 7−12 showed higher binding energy than the antifungal drug, fluconazole. Additionally, these compounds were found to have more promising binding energy with the SARS-CoV-2 main protease (6LU7) than tetracycline, fluconazole, and native inhibitor N3. Detailed investigation of Ki values, absorption, distribution, metabolism, excretion, and toxicity (ADMET), and the drug-likeness profile indicated that most of these compounds satisfy the drug-likeness evaluation, bioavailability, and safety tests, and hence, these synthetic novel MDG esters could be new antifungal and antiviral drugs.
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Affiliation(s)
- Priyanka Matin
- Bioorganic and Medicinal Chemistry Laboratory, Department of Chemistry, Faculty of Science, University of Chittagong, Chittagong 4331, Bangladesh; (P.M.); (U.H.)
| | - Umme Hanee
- Bioorganic and Medicinal Chemistry Laboratory, Department of Chemistry, Faculty of Science, University of Chittagong, Chittagong 4331, Bangladesh; (P.M.); (U.H.)
| | - Muhammad Shaiful Alam
- Department of Pharmacy, University of Science and Technology Chittagong, Chittagong 4202, Bangladesh;
| | - Jae Eon Jeong
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea;
| | - Mohammed Mahbubul Matin
- Bioorganic and Medicinal Chemistry Laboratory, Department of Chemistry, Faculty of Science, University of Chittagong, Chittagong 4331, Bangladesh; (P.M.); (U.H.)
- Correspondence: (M.M.M.); (B.K.); Tel.: +880-1716-839689 (M.M.M.)
| | - Md. Rezaur Rahman
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak, Kota Samarahan 94300, Malaysia;
| | - Shafi Mahmud
- Division of Genome Sciences and Cancer, The John Curtin School of Medical Research, The Shine-Dalgarno Centre for RNA Innovation, The Australian National University, Canberra, ACT 2601, Australia;
| | - Mohammed Merae Alshahrani
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Najran University, Najran 61441, Saudi Arabia;
| | - Bonglee Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea;
- Correspondence: (M.M.M.); (B.K.); Tel.: +880-1716-839689 (M.M.M.)
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Enzymatic Production of Lauroyl and Stearoyl Monoesters of d-Xylose, l-Arabinose, and d-Glucose as Potential Lignocellulosic-Derived Products, and Their Evaluation as Antimicrobial Agents. Catalysts 2022. [DOI: 10.3390/catal12060610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Forestry and agricultural industries constitute highly relevant economic activities globally. They generate large amounts of residues rich in lignocellulose that have the potential to be valorized and used in different industrial processes. Producing renewable fuels and high-value-added compounds from lignocellulosic biomass is a key aspect of sustainable strategies and is central to the biorefinery concept. In this study, the use of biomass-derived monosaccharides for the enzymatic synthesis of sugar fatty acid esters (SFAEs) with antimicrobial activity was investigated to valorize these agro-industrial residues. With the aim to evaluate if lignocellulosic monosaccharides could be substrates for the synthesis of SFAEs, d-xylose, l-arabinose, and d-glucose, lauroyl and stearoyl monoesters were synthetized by transesterification reactions catalyzed by Lipozyme RM IM as biocatalyst. The reactions were performed using commercial d-xylose, l-arabinose, and d-glucose separately as substrates, and a 74:13:13 mixture of these sugars. The proportion of monosaccharides in the latter mixture corresponds to the composition found in hemicellulose from sugarcane bagasse and switchgrass, as previously described in the literature. Products were characterized using nuclear magnetic resonance (NMR) spectroscopy and showed that only the primary hydroxyl group of these monosaccharides is involved in the esterification reaction. Antimicrobial activity assay using several microorganisms showed that 5-O-lauroyl-d-xylofuranose and 5-O-lauroyl-l-arabinofuranose have the ability to inhibit the growth of Gram-positive bacteria separately and in the products mix. Furthermore, 5-O-lauroyl-l-arabinofuranose was the only product that exhibited activity against Candida albicans yeast, and the four tested filamentous fungi. These results suggest that sugar fatty acid esters obtained from sustainable and renewable resources and produced by green methods are promising antimicrobial agents.
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6'- O-Lactose Ester Surfactants as an Innovative Opportunity in the Pharmaceutical Field: From Synthetic Methods to Biological Applications. Pharmaceuticals (Basel) 2021; 14:ph14121306. [PMID: 34959706 PMCID: PMC8706069 DOI: 10.3390/ph14121306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/02/2021] [Accepted: 12/10/2021] [Indexed: 01/27/2023] Open
Abstract
Glycolipid surfactants are biocompatible and biodegradable compounds characterized by potential applications in various sectors including pharmaceuticals, cosmetics, agriculture, and food production. A specific overview regarding synthetic methodologies and properties of 6′-lactose-based surfactants is presented herein, particularly all the synthetic approaches to this class of lactose esters, such as enzymatic and traditional organic syntheses. Moreover, detailed descriptions of physicochemical data and biocompatibility properties of these molecules, that is, surface tension, critical micelle concentration, emulsifying ability, foaming, particle size distribution, biocompatibility, and safety, are described. Biological applications with a focus on permeability enhancing, antimicrobial activity, and antibiofilm properties of 6′-lactose-based esters are also reported.
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Enzymatic synthesis of amphiphilic carbohydrate esters: Influence of physicochemical and biochemical parameters. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2021; 30:e00631. [PMID: 34094891 PMCID: PMC8166767 DOI: 10.1016/j.btre.2021.e00631] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 04/28/2021] [Accepted: 05/17/2021] [Indexed: 01/17/2023]
Abstract
Glycolipids, carbohydrate fatty esters or sugar esters are amphiphilic molecules containing hydrophilic groups bonded to hydrophobic parent structures. Recently, glycolipids have shown their antimicrobial and antitumor capacities. Their surface activity properties have applications in the food, pharmaceutical and cosmetic industries. Sugar esters' building blocks can be obtained from natural resources and/or be transformed by biochemical pathways for uses as surfactants. Biosurfactants are non-ionic, nontoxic, biodegradable, tasteless, and odourless. The biocatalysis of these molecules involves sustainable, green, and safer methods. The advantages of producing biosurfactants from enzymatic catalysis are the energy economy, high selectivity, production of natural products, reduction of the use of fossil-based solvents and chloride compounds. This review presents the most recent studies concerning the evaluation of the impact of the main parameters and their levels influencing the enzymatic synthesis of glycolipids. Various enzyme catalysed synthetic methods were described. The parameters studied were temperature, reaction time, solvent system, type of biocatalyst, substrates molar ratio proportion and the nature of substrates. This review discusses the influence of different biocatalysts in the conversions of glycolipids; The reactivity from mono to polysaccharides and their interaction with fatty acids of different carbon chain lengths in the presence of specific enzymes; The effect of the solvent polarity, the use of multiple solvents, ionic liquids, supercritical CO2, and solvent-free media in sugar ester conversions; And the optimization of temperature and reaction time in different enzymatic systems.
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11
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Efficient Synthetic Technique, PASS Predication, and ADMET Studies of Acylated n-Octyl Glucopyranosides. JOURNAL OF APPLIED SCIENCE & PROCESS ENGINEERING 2021. [DOI: 10.33736/jaspe.2823.2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Direct dimolar pentanoylation of octyl β-D-glucopyranoside (OBG) in pyridine-chloroform solvent system furnished the corresponding 3,6-di-O-pentanoate in improved yield. The pentanoate was further converted into three 2,4-di-O-acyl esters to get novel octyl glucopyranosides. To explore medicinal probability of OBG-based esters all the synthesized compounds were subjected for in silico PASS (prediction of activity spectra for substances) predication and ADMET (absorption, distribution, metabolism, excretion, and toxicity) studies. Both the studies indicated that OBG derived carbohydrate fatty acid (CFA) esters are potential alternative for multidrug resistant (MDR) pathogens, especially for fungal infections.
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12
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Synthesis, spectroscopic characterization, molecular docking, and ADMET studies of mannopyranoside esters as antimicrobial agents. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128821] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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13
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Synthesis, PASS Predication, Antimicrobial, DFT, and ADMET Studies of Some Novel Mannopyranoside Esters. JOURNAL OF APPLIED SCIENCE & PROCESS ENGINEERING 2020. [DOI: 10.33736/jaspe.2603.2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Due to the biodegradability and drug-likeness properties sugar esters (SEs) are getting especial attention to the synthetic and bioorganic chemists. In this context, we have synthesized several 6-O-pentanoyl mannopyranoside esters (5-9) with alkanoyl and sylfonyl chains reasonably in good yields. Both the prediction of activity spectra for substances (PASS) and in vitro tests indicated that these mannopyranoside esters possess better potentiality against fungal pathogens than the bacterial organisms. These SEs were also optimized with quantum chemical density functional theory (DFT), and various thermodynamic properties like frontier molecular orbital, and molecular electrostatic potential (MEP) were calculated and discussed. Absorption, distribution, metabolism, excretion, and toxicity (ADMET) calculations indicated that these SEs can pass through blood brain barrier and less toxic. Drug-likeness results indicated good conditions for alkanoyl esters rather than sulfonyl esters despite their promising antifungal results. All the in vitro and in silico results indicated that the combination of pentanoyl (C5) and lauroyl (C12) chains in mannopyranoside framework, as in 9, might be a potential candidate for novel antifungal agent.
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14
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Dey TK, Basu P, Riyajuddin S, Biswas S, Khan A, Ghosh K, Islam SM. In Situ Carbonylative Synthesis of Aromatic Esters and Formation of Quinazoline‐2,4(1H,3H)‐diones by Chemical Fixation of CO
2
in Assistance of Polymer‐Supported Palladium Catalyst. ChemistrySelect 2020. [DOI: 10.1002/slct.202002256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tusar Kanto Dey
- Department of Chemistry University of Kalyani Kalyani Nadia 741235 West Bengal India
| | - Priyanka Basu
- Department of Chemistry University of Kalyani Kalyani Nadia 741235 West Bengal India
| | - Sk. Riyajuddin
- Institute of Nano Science and Technology Mohali Punjab 160062 India
| | - Surajit Biswas
- Department of Chemistry University of Kalyani Kalyani Nadia 741235 West Bengal India
| | - Aslam Khan
- King Abdullah Institute for Nanotechnology King Saud University Riyadh 11451 Saudi Arabia
| | - Kaushik Ghosh
- Institute of Nano Science and Technology Mohali Punjab 160062 India
| | - Sk. Manirul Islam
- Department of Chemistry University of Kalyani Kalyani Nadia 741235 West Bengal India
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15
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Paprocki D, Koszelewski D, Madej A, Brodzka A, Walde P, Ostaszewski R. Evaluation of Biodegradable Glucose Based Surfactants as a Promoting Medium for the Synthesis of Peptidomimetics with the Coumarin Scaffold. ChemistrySelect 2020. [DOI: 10.1002/slct.202002266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Daniel Paprocki
- Institute of Organic ChemistryPolish Academy of Sciences Kasprzaka 44/52, 01–224 Warsaw Poland
| | - Dominik Koszelewski
- Institute of Organic ChemistryPolish Academy of Sciences Kasprzaka 44/52, 01–224 Warsaw Poland
| | - Arleta Madej
- Institute of Organic ChemistryPolish Academy of Sciences Kasprzaka 44/52, 01–224 Warsaw Poland
| | - Anna Brodzka
- Institute of Organic ChemistryPolish Academy of Sciences Kasprzaka 44/52, 01–224 Warsaw Poland
| | - Peter Walde
- Laboratory for Multifunctional MaterialsDepartment of Materials, ETH Zurich, Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Ryszard Ostaszewski
- Institute of Organic ChemistryPolish Academy of Sciences Kasprzaka 44/52, 01–224 Warsaw Poland
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16
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Matin MM, Chakraborty P, Alam MS, Islam MM, Hanee U. Novel mannopyranoside esters as sterol 14α-demethylase inhibitors: Synthesis, PASS predication, molecular docking, and pharmacokinetic studies. Carbohydr Res 2020; 496:108130. [PMID: 32863019 PMCID: PMC7427576 DOI: 10.1016/j.carres.2020.108130] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/02/2020] [Accepted: 08/09/2020] [Indexed: 12/18/2022]
Abstract
Direct unimolar one-step valeroylation of methyl α-d-mannopyranoside (MDM) furnished mainly 6-O-valeroate. However, similar reaction catalyzed by DMAP resulted 3,6-di-O-valeroate (21%) and 6-O-valeroate (47%) indicating reactivity sequence as 6-OH>3-OH>2-OH,4-OH. To get potential antimicrobial agents, 6-O-valeroate was converted into four 2,3,4-di-O-acyl esters, and 3,6-di-O-valeroate was converted into 2,4-di-O-acetate. Direct tetra-O-valeroylation of MDM gave a mixture of 2,3,4,6-tetra-O-valeroate and 2,3,6-tri-O-valeroate indicating that the C2-OH is more reactive than the equatorial C4-OH. The activity spectra analysis along with in vitro antimicrobial evaluation clearly indicated that these novel MDM esters had better antifungal activities over antibacterial agents. In this connection, molecular docking indicated that these MDM esters acted as competitive inhibitors of sterol 14α-demethylase (CYP51), an essential enzyme for clinical target to cure several infectious diseases. Furthermore, pharmacokinetic studies revealed that these MDM esters may be worth considering as potent candidates for oral and topical administration. Structure activity relationship (SAR) affirmed that saturated valeric chain (C5) in combination with caprylic (C8) chains was more promising CYP51 inhibitor over conventional antifungal antibiotics.
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Affiliation(s)
- Mohammed M Matin
- Bioorganic and Medicinal Chemistry Laboratory, Department of Chemistry, Faculty of Science, University of Chittagong, Chattogram, 4331, Bangladesh.
| | - Priyanka Chakraborty
- Bioorganic and Medicinal Chemistry Laboratory, Department of Chemistry, Faculty of Science, University of Chittagong, Chattogram, 4331, Bangladesh
| | - Muhammad S Alam
- Molecular Modeling & Drug Design Laboratory, Bangladesh Council of Scientific & Industrial Research (BCSIR) Laboratories, Chattogram, 4220, Bangladesh
| | - Mohammad M Islam
- Department of Biochemistry and Molecular Biology, Faculty of Biological Science, University of Chittagong, Chattogram, 4331, Bangladesh
| | - Umme Hanee
- Bioorganic and Medicinal Chemistry Laboratory, Department of Chemistry, Faculty of Science, University of Chittagong, Chattogram, 4331, Bangladesh
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17
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Ji S, Jia C, Cao D, Li S, Zhang X. Direct and selective enzymatic synthesis of trehalose unsaturated fatty acid diesters and evaluation of foaming and emulsifying properties. Enzyme Microb Technol 2020; 136:109516. [PMID: 32331720 DOI: 10.1016/j.enzmictec.2020.109516] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 10/25/2022]
Abstract
Trehalose diesters are Gemini-type surfactants that might have better surface activity than conventional surfactants. A one-step method for the preparation of trehalose unsaturated fatty acid diesters has been successfully developed. The yield of trehalose diester of different unsaturated fatty acids was between 78 % and 88 % under optimal conditions: 25 mmol/L trehalose, 100 mmol/L unsaturated fatty acid, 60 g/L 3 Å molecular sieves and 20 g/L lipase at 150 rpm and 50 °C for 42 h in 15 mL of acetone. Additionally, trehalose diester was the sole product obtained with Novozym 435 in acetone. The chemical structures of 6,6'-di-O-oleoyltrehalose, 6,6'-di-O-linoleoyltrehalose, 6,6'-di-O-eicosenoyltrehalose and 6,6'-di-O-erucoyltrehalose were confirmed by FTIR, MS and NMR. Moreover, the hydrophile-lipophile balance (HLB) values, foaming properties and emulsifying properties of trehalose diesters were assessed, showing the potentials of these diesters as naturally derived surfactants for the food industry.
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Affiliation(s)
- Suping Ji
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Chengsheng Jia
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China.
| | - Dandan Cao
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Shusheng Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Xiaoming Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
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18
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Mani Chandrika KVS, Sharma S. Promising antifungal agents: A minireview. Bioorg Med Chem 2020; 28:115398. [PMID: 32115335 DOI: 10.1016/j.bmc.2020.115398] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 02/14/2020] [Accepted: 02/19/2020] [Indexed: 11/24/2022]
Abstract
In the recent past, prevalence of life threatening fungal diseases have increased rapidly in immune-compromised cases such as acquired immunodeficiency syndrome (AIDS), cancer, organ transplant etc. Side by side, the appearance of drug resistance to the presently available antifungal therapeutics is on a rapid rise. It has become a top priority for the academia and pharmaceutical industries to develop new antifungal agents able to combat this resistance, and at the same time, possess potential broad spectrum of activity and minimum toxicity. An understanding of the pharmacological interactions between antifungal agents and their targets offers opportunities for design of new therapeutics. This review discusses the various methodology of drug design, structure activity relationships (SARs), and mode of action of variety of new antifungal agents.
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Affiliation(s)
- K V S Mani Chandrika
- Department of Chemistry, Sri Sathya Sai Institute of Higher Learning, Anantapur Campus, Anantapur 515001, A.P., India
| | - Sahida Sharma
- Department of Chemistry, Sri Sathya Sai Institute of Higher Learning, Anantapur Campus, Anantapur 515001, A.P., India.
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19
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Campana R, Merli A, Verboni M, Biondo F, Favi G, Duranti A, Lucarini S. Synthesis and Evaluation of Saccharide-Based Aliphatic and Aromatic Esters as Antimicrobial and Antibiofilm Agents. Pharmaceuticals (Basel) 2019; 12:ph12040186. [PMID: 31861227 PMCID: PMC6958352 DOI: 10.3390/ph12040186] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/13/2019] [Accepted: 12/14/2019] [Indexed: 11/23/2022] Open
Abstract
A small library of sugar-based (i.e., glucose, mannose and lactose) monoesters containing hydrophobic aliphatic or aromatic tails were synthesized and tested. The antimicrobial activity of the compounds against a target panel of Gram-positive, Gram-negative and fungi was assessed. Based on this preliminary screening, the antibiofilm activity of the most promising molecules was evaluated at different development times of selected food-borne pathogens (E. coli, L. monocytogenes, S. aureus, S. enteritidis). The antibiofilm activity during biofilm formation resulted in the following: mannose C10 > lactose biphenylacetate > glucose C10 > lactose C10. Among them, mannose C10 and lactose biphenylacetate showed an inhibition for E. coli 97% and 92%, respectively. At MICs values, no toxicity was observed on Caco-2 cell line for all the examined compounds. Overall, based on these results, all the sugar-based monoesters showed an interesting profile as safe antimicrobial agents. In particular, mannose C10 and lactose biphenylacetate are the most promising as possible biocompatible and safe preservatives for pharmaceutical and food applications.
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Affiliation(s)
| | | | | | | | | | - Andrea Duranti
- Correspondence: (A.D.); (S.L.); Tel.: +39-0722-303501 (A.D.); +39-0722-303333 (S.L.)
| | - Simone Lucarini
- Correspondence: (A.D.); (S.L.); Tel.: +39-0722-303501 (A.D.); +39-0722-303333 (S.L.)
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20
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Zheng F, Chen L, Zhang P, Zhou J, Lu X, Tian W. Carbohydrate polymers exhibit great potential as effective elicitors in organic agriculture: A review. Carbohydr Polym 2019; 230:115637. [PMID: 31887887 DOI: 10.1016/j.carbpol.2019.115637] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/16/2019] [Accepted: 11/17/2019] [Indexed: 12/17/2022]
Abstract
Some carbohydrate polymers, usually oligosaccharides or polysaccharides, have great potential as an elicitor of plant defense. However, due to the complexity and diversity of poly- and oligosaccharide structure, the molecular mechanisms and structure-activity relationships of carbohydrate elicitors are still not well understood, which hinders the application of carbohydrate elicitors in agriculture. This review introduces the mechanisms of carbohydrate elicitor perception and signaling in plants. The structure and activity relationships of main poly- and oligosaccharides studied for the control of plant diseases are discussed and summarized. Additionally, the effects of carbohydrate elicitors on the secondary metabolite production are also summarized.
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Affiliation(s)
- Fang Zheng
- School of Forestry and Bio-technology, Zhejiang Agriculture and Forestry University, Lin'an, 311300, Zhejiang, China.
| | - Lei Chen
- School of Forestry and Bio-technology, Zhejiang Agriculture and Forestry University, Lin'an, 311300, Zhejiang, China
| | - Peifeng Zhang
- School of Forestry and Bio-technology, Zhejiang Agriculture and Forestry University, Lin'an, 311300, Zhejiang, China
| | - Jingqi Zhou
- School of Forestry and Bio-technology, Zhejiang Agriculture and Forestry University, Lin'an, 311300, Zhejiang, China
| | - Xiaofang Lu
- School of Forestry and Bio-technology, Zhejiang Agriculture and Forestry University, Lin'an, 311300, Zhejiang, China
| | - Wei Tian
- School of Forestry and Bio-technology, Zhejiang Agriculture and Forestry University, Lin'an, 311300, Zhejiang, China.
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21
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Matin MM, Bhuiyan MM, Kabir E, Sanaullah AF, Rahman MA, Hossain ME, Uzzaman M. Synthesis, characterization, ADMET, PASS predication, and antimicrobial study of 6-O-lauroyl mannopyranosides. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.05.102] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Jumina J, Mutmainah M, Purwono B, Kurniawan YS, Syah YM. Antibacterial and Antifungal Activity of Three Monosaccharide Monomyristate Derivatives. Molecules 2019; 24:molecules24203692. [PMID: 31615093 PMCID: PMC6832165 DOI: 10.3390/molecules24203692] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/09/2019] [Accepted: 10/10/2019] [Indexed: 11/16/2022] Open
Abstract
Microbial infections remains a serious challenge in food industries due to their resistance to some of the well-known antibacterial and antifungal agents. In this work, a novel monomyristoyl ester (fructosyl monomyristate) and two other derivatives (i.e., glucosyl and galactosyl monomyristates) were successfully synthesized from myristic acid and monosaccharides in two-step reactions. First, the myristic acid was converted to myristoyl chloride, and then the myristoyl chloride was reacted with fructose, glucose and galactose separately to produce the corresponding monosaccharide monomyristate derivatives. The structures of the synthesized products were confirmed by Fourier transform infrared (FTIR), proton and carbon nuclear magnetic resonance (1H- and 13C-NMR), and mass spectral (MS) data. The monomyristates esters were obtained in reaction yields of 45.80%-79.49%. The esters were then evaluated for their antimicrobial activity using the disc diffusion test. It was found that the esters exhibited a medium antibacterial activity against gram-positive bacteria; however, they showed a weak antibacterial activity against gram-negative bacteria. Amongst the esters, galactosyl myristate yielded the highest antibacterial activity against Salmonella typhimurium, Staphylococcus aureus and Bacillus subtilis, while glucosyl monomyristate exhibited the highest antibacterial activity only against Escherichia coli. Additionally, all products showed remarkable antifungal activity against Candida albicans. These findings demonstrate that monosaccharide monomyristate derivatives are promising for use as biocompatible antimicrobial agents in the future.
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Affiliation(s)
- Jumina Jumina
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia.
| | - Mutmainah Mutmainah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia.
| | - Bambang Purwono
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia.
| | - Yehezkiel Steven Kurniawan
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia.
| | - Yana Maolana Syah
- Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung 40132, Indonesia.
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23
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Koumba Ibinga SK, Fabre JF, Bikanga R, Mouloungui Z. Atypical Reaction Media and Organized Systems for the Synthesis of Low-Substitution Sugar Esters. Front Chem 2019; 7:587. [PMID: 31608269 PMCID: PMC6768285 DOI: 10.3389/fchem.2019.00587] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 08/06/2019] [Indexed: 12/31/2022] Open
Abstract
Sugar esters are non-ionic surfactants with amphiphilic properties of interest for the formulation of various products in the fields of detergents, foods, medicines, pharmaceuticals, agriculture, and cosmetics. The properties of sugar esters depend on their degree of substitution (we consider degrees of substitution between 1 and 3 here) which guides their use. Sugar esters are biodegradable and non-toxic, and the demand for these compounds is high and continuing to increase. Indeed, interest in these compounds stems from the natural origin of the raw materials, the synthetic processes involved and the performance of the final product. The choice of reaction medium is crucial, to facilitate contact between reactants and prevent hydrolysis of the products. In this review, we provide an overview of the processes and synthesis routes for sugar ester production, ionic liquids and deep eutectic solvent as non-usual media or with organized systems.
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Affiliation(s)
- Sidrine Kerthy Koumba Ibinga
- Laboratoire de Chimie Agro-industrielle, Université de Toulouse, INRA, Toulouse, France.,Laboratoire des Substances Naturelles et de Synthèse Organo-Métallique, LASNSOM, Université des Sciences et Techniques de Masuku, Franceville, Gabon
| | - Jean-François Fabre
- Laboratoire de Chimie Agro-industrielle, Université de Toulouse, INRA, Toulouse, France
| | - Raphaël Bikanga
- Laboratoire des Substances Naturelles et de Synthèse Organo-Métallique, LASNSOM, Université des Sciences et Techniques de Masuku, Franceville, Gabon
| | - Zéphirin Mouloungui
- Laboratoire de Chimie Agro-industrielle, Université de Toulouse, INRA, Toulouse, France
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24
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Synthesis, PASS predication, in vitro antimicrobial evaluation and pharmacokinetic study of novel n-octyl glucopyranoside esters. Carbohydr Res 2019; 485:107812. [PMID: 31585251 DOI: 10.1016/j.carres.2019.107812] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 08/30/2019] [Accepted: 09/08/2019] [Indexed: 11/21/2022]
Abstract
Octyl β-d-glucopyranoside (OBG), prepared from d-glucose and octan-1-ol employing MW method, was subjected to direct dimolar valeroylation in pyridine at room temperature (25 °C) with valeroyl chloride. This mainly furnished the corresponding 3,6-di-O-valeroate in 57% yield indicating the regioselectivity at C-6 and C-3 positions. For structural elucidation and to get newer glucopyranosides of potential antimicrobial 3,6-di-O-valeroate was further converted into four novel 2,4-di-O-acyl esters reasonably in good yields. Per-O-acetate and per-O-benzoate of OBG were also prepared for SAR study. PASS predication and in vitro antimicrobial studies established them as better antifungal agent than that of antibacterial. SAR study along with AdmetSAR and SwissADME suggested that incorporation of alkanoyl and aromatic ester groups on octyl glucopyranoside core increase antimicrobial potentiality in very low concentration (10 μgmL-1). Molecular docking revealed that novel 2,4-di-O-tosyl ester and 2,3,4,6-tetra-O-benzoyl ester may act as competitive inhibitors of lanosterol 14-alpha demethylase.
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25
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Alfindee MN, Subedi YP, Grilley MM, Takemoto JY, Chang CWT. Antifungal Activities of 4″,6″-Disubstituted Amphiphilic Kanamycins. Molecules 2019; 24:molecules24101882. [PMID: 31100822 PMCID: PMC6571828 DOI: 10.3390/molecules24101882] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/10/2019] [Accepted: 05/14/2019] [Indexed: 12/17/2022] Open
Abstract
Amphiphilic kanamycins derived from the classic antibiotic kanamycin have attracted interest due to their novel bioactivities beyond inhibition of bacteria. In this study, the recently described 4″,6″-diaryl amphiphilic kanamycins reported as inhibitors of connexin were examined for their antifungal activities. Nearly all 4″,6″-diaryl amphiphilic kanamycins tested had antifungal activities comparable to those of 4″,6″-dialkyl amphiphilic kanamycins, reported previously against several fungal strains. The minimal growth inhibitory concentrations (MICs) correlated with the degree of amphiphilicity (cLogD) of the di-substituted amphiphilic kanamycins. Using the fluorogenic dyes, SYTOXTM Green and propidium iodide, the most active compounds at the corresponding MICs or at 2×MICs caused biphasic dye fluorescence increases over time with intact cells. Further lowering the concentrations to half MICs caused first-order dye fluorescence increases. Interestingly, 4×MIC or 8×MIC levels resulted in fluorescence suppression that did not correlate with the MIC and plasma membrane permeabilization. The results show that 4″,6″-diaryl amphiphilic kanamycins are antifungal and that amphiphilicity parameter cLogD is useful for the design of the most membrane-active versions. A cautionary limitation of fluorescence suppression was revealed when using fluorogenic dyes to measure cell-permeation mechanisms with these antifungals at high concentrations. Finally, 4″,6″-diaryl amphiphilic kanamycins elevate the production of cellular reactive oxygen species as other reported amphiphilic kanamycins.
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Affiliation(s)
- Madher N Alfindee
- Department of Chemistry and Biochemistry, Utah State University, 0300 Old Main Hill, Logan, UT 84322-0300, USA.
| | - Yagya P Subedi
- Department of Chemistry and Biochemistry, Utah State University, 0300 Old Main Hill, Logan, UT 84322-0300, USA.
| | - Michelle M Grilley
- Department of Biology, Utah State University, 5305 Old Main Hill, Logan, UT 84322-5305, USA.
| | - Jon Y Takemoto
- Department of Biology, Utah State University, 5305 Old Main Hill, Logan, UT 84322-5305, USA.
| | - Cheng-Wei T Chang
- Department of Chemistry and Biochemistry, Utah State University, 0300 Old Main Hill, Logan, UT 84322-0300, USA.
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Pantoa T, Shompoosang S, Ploypetchara T, Gohtani S, Udomrati S. Surface‐Active Properties and Anti‐Microbial Activities of Esterified Maltodextrins. STARCH-STARKE 2019. [DOI: 10.1002/star.201800265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Thidarat Pantoa
- Department of Food Chemistry and PhysicsInstitute of Food ResearchProduct DevelopmentKasetsart University50 ChatuchakBangkok 10900Thailand
| | - Sirinan Shompoosang
- Department of Applied MicrobiologyInstitute of Food Research and Product DevelopmentKasetsart University50 ChatuchakBangkok 10900Thailand
| | - Thongkorn Ploypetchara
- Department of Applied Biological ScienceFaculty of AgricultureKagawa University2393 MikiKagawa 761‐0795Japan
| | - Shoichi Gohtani
- Department of Applied Biological ScienceFaculty of AgricultureKagawa University2393 MikiKagawa 761‐0795Japan
| | - Sunsanee Udomrati
- Department of Food Chemistry and PhysicsInstitute of Food ResearchProduct DevelopmentKasetsart University50 ChatuchakBangkok 10900Thailand
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27
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Liang MY, Banwell MG, Wang Y, Lan P. Effect of Variations in the Fatty Acid Residue of Lactose Monoesters on Their Emulsifying Properties and Biological Activities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:12594-12603. [PMID: 30395455 DOI: 10.1021/acs.jafc.8b05794] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Lactose fatty acid esters are high-value-added derivatives of lactose and represent a class of biodegradable, non-ionic, low-molecular-weight surfactants (emulsifiers) that have considerable potential in the food, cosmetic, and pharmaceutical industries. Certain lactose esters have also garnered attention for their biological activities. In this work, we detail syntheses of a homologous series of 6'- O-acyllactose esters of varying alkyl chain length (from 6 to 18 carbons) and report on their activities as surfactants as well as their antimicrobial and cytotoxic properties. The structure-property profiles established in this work revealed that while the medium-chain esters displayed excellent emulsifying properties and moderate antimicrobial activities, their longer chain congeners exhibited the highest cytotoxicities. As such, we have established that certain 6'- O-acyllactose esters are superior to their sucrose-derived and commercially exploited counterparts. These results will serve as a useful guide for the development of lactose esters as, inter alia, emulsifiers in the food industry.
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Affiliation(s)
- Min-Yi Liang
- Department of Food Science and Engineering , Jinan University , Guangzhou , Guangdong 510632 , People's Republic of China
| | - Martin G Banwell
- Institute for Advanced and Applied Chemical Synthesis , Jinan University , Zhuhai , Guangdong 519070 , People's Republic of China
- Research School of Chemistry, Institute of Advanced Studies , The Australian National University , Canberra , Australian Capital Territory 2601 , Australia
| | - Yong Wang
- Department of Food Science and Engineering , Jinan University , Guangzhou , Guangdong 510632 , People's Republic of China
- Institute for Advanced and Applied Chemical Synthesis , Jinan University , Zhuhai , Guangdong 519070 , People's Republic of China
| | - Ping Lan
- Department of Food Science and Engineering , Jinan University , Guangzhou , Guangdong 510632 , People's Republic of China
- Institute for Advanced and Applied Chemical Synthesis , Jinan University , Zhuhai , Guangdong 519070 , People's Republic of China
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28
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Subedi YP, Alfindee MN, Shrestha JP, Becker G, Grilley M, Takemoto JY, Chang CWT. Synthesis and biological activity investigation of azole and quinone hybridized phosphonates. Bioorg Med Chem Lett 2018; 28:3034-3037. [DOI: 10.1016/j.bmcl.2018.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 07/28/2018] [Accepted: 08/01/2018] [Indexed: 11/30/2022]
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29
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Tuning the biological activity of cationic anthraquinone analogues specifically toward Staphylococcus aureus. Eur J Med Chem 2018; 157:683-690. [PMID: 30130717 DOI: 10.1016/j.ejmech.2018.08.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/27/2018] [Accepted: 08/04/2018] [Indexed: 11/22/2022]
Abstract
Development of new antibacterial agents against drug resistant bacteria is an imminent task, especially against methicillin-resistant Staphylococcus aureus (MRSA). While MRSA can still be treated with broad spectrum antibiotics, the use of which often leads to the disruption of normal microbial flora leading to Clostridium difficile infection (CDI). Herein, a new class of antibacterial agent, cationic anthraquinone analogues specifically against MRSA, has been developed. Through the variation and optimization of substituents, these agents are selective toward MRSA, and not Gram negative bacteria which may avoid the problem of CDI. In addition, newly discovered lead compounds also show significantly reduced cytotoxicity against normal mammalian cells than cancerous cells. This interesting finding can alleviate the toxicity and side effect problems often associate with the use of antibiotics.
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