1
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Liberatore MT, Dilucia F, Rutigliano M, Viscecchia R, Spano G, Capozzi V, Bimbo F, Di Luccia A, la Gatta B. Polyphenolic characterization, nutritional and microbiological assessment of newly formulated semolina fresh pasta fortified with grape pomace. Food Chem 2024; 463:141531. [PMID: 39388879 DOI: 10.1016/j.foodchem.2024.141531] [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: 06/05/2024] [Revised: 09/23/2024] [Accepted: 10/02/2024] [Indexed: 10/12/2024]
Abstract
The application of an innovative patented technology on grape pomace allowed to obtain a food ingredient no matter the seasonality and with a great shelf-life thanks to its high polyphenolic content. Then, fresh pasta samples fortified with 5 and 10 g/100 g of this innovative ingredient were prepared and their polyphenolic content, nutritional and microbiological assessments were investigated. The two levels of fortification led to an increase of polyphenols content before and after pasta cooking, which resulted in an increased antibacterial activity. Only the fortification with 5 g/100 g of grape pomace powder determined a high level of Slowly Digestible Starch and a low predicted Glycaemic Index, highlighting a possible 'limit effect' for the fortification of semolina fresh pasta. Overall, results confirmed that the use of this concentration obtained with the employment of the new technology allowed the production of fresh pasta with better polyphenolic profile and nutritional value even after cooking.
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Affiliation(s)
- Maria Teresa Liberatore
- Department of Sciences of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy
| | - Flavia Dilucia
- Department of Sciences of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy
| | - Mariacinzia Rutigliano
- Department of Sciences of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy
| | - Rosaria Viscecchia
- Department of Sciences of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy
| | - Giuseppe Spano
- Department of Sciences of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy
| | - Vittorio Capozzi
- Department of Sciences of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy
| | - Francesco Bimbo
- Department of Sciences of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy
| | - Aldo Di Luccia
- Department of Sciences of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy
| | - Barbara la Gatta
- Department of Sciences of Agriculture, Food, Natural Resources, and Engineering (DAFNE), University of Foggia, Via Napoli, 25, 71122, Foggia, Italy.
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2
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Lupuliasa AI, Prisada RM, Matei (Brazdis) RI, Avramescu SM, Vasile BȘ, Fierascu RC, Fierascu I, Voicu-Bălașea B, Meleșcanu Imre M, Pițuru SM, Anuța V, Dinu-Pîrvu CE. Development of Biologically Active Phytosynthesized Silver Nanoparticles Using Marrubium vulgare L. Extracts: Applications and Cytotoxicity Studies. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:895. [PMID: 38786851 PMCID: PMC11123753 DOI: 10.3390/nano14100895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
Metal nanoparticle phytosynthesis has become, in recent decades, one of the most promising alternatives for the development of nanomaterials using "green chemistry" methods. The present work describes, for the first time in the literature, the phytosynthesis of silver nanoparticles (AgNPs) using extracts obtained by two methods using the aerial parts of Marrubium vulgare L. The extracts (obtained by classical temperature extraction and microwave-assisted extraction) were characterized in terms of total phenolics content and by HPLC analysis, while the phytosynthesis process was confirmed using X-ray diffraction and transmission electron microscopy, the results suggesting that the classical method led to the obtaining of smaller-dimension AgNPs (average diameter under 15 nm by TEM). In terms of biological properties, the study confirmed that AgNPs as well as the M. vulgare crude extracts reduced the viability of human gingival fibroblasts in a concentration- and time-dependent manner, with microwave-assisted extracts having the more pronounced effects. Additionally, the study unveiled that AgNPs transiently increased nitric oxide levels which then decreased over time, thus offering valuable insights into their potential therapeutic use and safety profile.
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Affiliation(s)
- Alina Ioana Lupuliasa
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (A.I.L.); (V.A.); (C.E.D.-P.)
| | - Răzvan Mihai Prisada
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (A.I.L.); (V.A.); (C.E.D.-P.)
- Innovative Therapeutic Structures Research and Development Centre (InnoTher), “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania
| | - Roxana Ioana Matei (Brazdis)
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independenței, 060021 Bucharest, Romania; (R.I.M.); (I.F.)
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania
| | - Sorin Marius Avramescu
- Department of Inorganic Chemistry, Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 030018 Bucharest, Romania;
- Research Centre for Environmental Protection and Waste Management (PROTMED), University of Bucharest, Splaiul Independenței 91-95, Sect. 5, 050107 Bucharest, Romania
| | - Bogdan Ștefan Vasile
- Research Center for Advanced Materials, Products and Processes, National University of Science and Technology Politehnica Bucharest, 060042 Bucharest, Romania;
- National Research Center for Micro and Nanomaterials, National University of Science and Technology Politehnica Bucharest, 060042 Bucharest, Romania
| | - Radu Claudiu Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independenței, 060021 Bucharest, Romania; (R.I.M.); (I.F.)
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania
| | - Irina Fierascu
- National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independenței, 060021 Bucharest, Romania; (R.I.M.); (I.F.)
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Mărăști Blvd., 011464 Bucharest, Romania
| | - Bianca Voicu-Bălașea
- Interdisciplinary Centre for Research and Development in Dentistry (CICDS), Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (B.V.-B.); (M.M.I.); (S.-M.P.)
| | - Marina Meleșcanu Imre
- Interdisciplinary Centre for Research and Development in Dentistry (CICDS), Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (B.V.-B.); (M.M.I.); (S.-M.P.)
- Department of Prosthodontics, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 17-23 Calea Plevnei, 010221 Bucharest, Romania
| | - Silviu-Mirel Pițuru
- Interdisciplinary Centre for Research and Development in Dentistry (CICDS), Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (B.V.-B.); (M.M.I.); (S.-M.P.)
- Department of Organization, Professional Legislation and Management of the Dental Office, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 17-23 Plevnei Street, 020021 Bucharest, Romania
| | - Valentina Anuța
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (A.I.L.); (V.A.); (C.E.D.-P.)
- Innovative Therapeutic Structures Research and Development Centre (InnoTher), “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania
| | - Cristina Elena Dinu-Pîrvu
- Department of Physical and Colloidal Chemistry, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania; (A.I.L.); (V.A.); (C.E.D.-P.)
- Innovative Therapeutic Structures Research and Development Centre (InnoTher), “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania
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3
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Li X, Fan Y, Guo J, Li R, Liu Z, Hou Y, Qu Z, Liu Q. Polyvinyl alcohol/kappa-carrageenan-based package film with simultaneous incorporation of ferric ion and polyphenols from Capsicum annuum leaves for fruit shelf-life extension. Int J Biol Macromol 2024; 266:131002. [PMID: 38522680 DOI: 10.1016/j.ijbiomac.2024.131002] [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: 01/02/2024] [Revised: 03/07/2024] [Accepted: 03/17/2024] [Indexed: 03/26/2024]
Abstract
Bio-based food packaging materials have elicited growing interests due to their great degradability, high safety and active biofunctions. In this work, by simultaneously introducing the polyphenolic extracts from Capsicum annuum leaves and ferric ion (Fe3+) into the Polyvinyl alcohol/kappa-carrageenan (PVA/κ-carrageenan)-based film-forming matrix, an active package film was developed, with the purpose to improve the food shelf life. The experimental results indicated that the existence of Fe3+ can not only improve the mechanical properties owing to the multiple dynamic coordinated interactions, but also endow the composite films with excellent fire-retardancy. Moreover, the composite films could display excellent UV resistant performance, water vapor/oxygen gas barrier properties and antioxidant activities with the corporation of polyphenols. In particular, the highest DPPH and ABTS radical scavenging capacities for composite film (PC-PLP7 sample) were evaluated to be 82.5 % and 91.1 %, respectively. Higher polyphenol concentration is favorable to the bio-functions of the materials. Benefitting from these features, this novel kind of films with a dense and steady micro-structure could be further applicated in fruit preservations, where the ripening bananas were ensured with the high storage quality. This integration as a prospective food packaging material provides an economic and eco-friendly approach to excavate the high added-values of biomass.
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Affiliation(s)
- Xiaojun Li
- School of Chemistry and Chemical Engineering, North University of China, No. 3 Xueyuan Road, Jiancaoping District, Taiyuan 030051, China; Nanolattix Biotech Corporation, No.11 Kangshou street, Xiaodian District, Taiyuan 030006, China
| | - Yiyuan Fan
- School of Chemistry and Chemical Engineering, North University of China, No. 3 Xueyuan Road, Jiancaoping District, Taiyuan 030051, China
| | - Juan Guo
- School of Chemistry and Chemical Engineering, North University of China, No. 3 Xueyuan Road, Jiancaoping District, Taiyuan 030051, China
| | - Ran Li
- School of Chemistry and Chemical Engineering, North University of China, No. 3 Xueyuan Road, Jiancaoping District, Taiyuan 030051, China
| | - Zeqi Liu
- School of Chemistry and Chemical Engineering, North University of China, No. 3 Xueyuan Road, Jiancaoping District, Taiyuan 030051, China
| | - Yarui Hou
- School of Chemistry and Chemical Engineering, North University of China, No. 3 Xueyuan Road, Jiancaoping District, Taiyuan 030051, China
| | - Zhican Qu
- Nanolattix Biotech Corporation, No.11 Kangshou street, Xiaodian District, Taiyuan 030006, China
| | - Qingye Liu
- School of Chemistry and Chemical Engineering, North University of China, No. 3 Xueyuan Road, Jiancaoping District, Taiyuan 030051, China.
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4
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Roshal AD. Complexation of Flavonoids: Spectral Phenomena, Regioselectivity, Interplay with Charge and Proton Transfer. CHEM REC 2024; 24:e202300249. [PMID: 37786285 DOI: 10.1002/tcr.202300249] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/13/2023] [Indexed: 10/04/2023]
Abstract
The review compiles information on the spectral classification of flavonoids, the changes in their electronic structure upon complex formation, and the manifestation of these changes in the absorption and emission spectra. Part of the review is devoted to the regioselectivity of the complex formation process, including types of complexation sites, the structure of chelates and 'open' complexes, and the correlation between the structure of complexes and their spectral properties. The interplay between complex formation and other processes occurring in flavonoids during electronic excitation is also considered, such as intramolecular inter-fragment charge transfer (ICT) and intramolecular proton transfer (ESIPT). The review also contains systematic data on the study of regioselectivity and spectral properties of flavone complexes, obtained by the author and their colleagues over the past decades.
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Affiliation(s)
- Alexander D Roshal
- Research Institute of Chemistry, V.N. Karazin Kharkiv National University, 4 Svoboda square, Kharkiv, 61022, Ukraine
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5
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Rynjah S, Baro B, Sarkar B. Oxepin Derivatives Formation from Gas-Phase Catechol Ozonolysis. J Phys Chem A 2024; 128:251-260. [PMID: 38158557 DOI: 10.1021/acs.jpca.3c04582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Quantum chemical calculations are performed to explore all of the possible pathways for primary ozonide (POZ) formation from gas-phase ozonolysis of catechol. Canonical transition state theory has been used to calculate the rate coefficients of individual steps for the formation of POZ. The calculated rate coefficients for 1,3-cycloaddition of ozone at the (i) unsaturated C(OH)═C(OH) bond and (ii) CH═C(OH) of catechol, respectively, are in good agreement with the experimental rate constant. In general, subsequent decomposition of POZ leads to well-known Criegee Intermediates. This work reveals a parallel pathway by which the endo-addition of ozone at CH═C(OH) of catechol proceeds through oxepin derivatives along with the paths leading to Criegee Intermediates and peroxy acids. The 7-membered heterocyclic oxepin derivatives have lower energies than Criegee Intermediates but similar relative energies with peroxy acids.
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Affiliation(s)
- Shankupar Rynjah
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | - Bhabesh Baro
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | - Biplab Sarkar
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
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6
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Riaz R, Parveen S, Rashid M, Shafiq N. Combined Experimental and Theoretical Insights: Spectroscopic and Molecular Investigation of Polyphenols from Fagonia indica via DFT, UV-vis, and FT-IR Approaches. ACS OMEGA 2024; 9:730-740. [PMID: 38222607 PMCID: PMC10785638 DOI: 10.1021/acsomega.3c06544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 01/16/2024]
Abstract
This review deals with computational study of polyphenolic compounds of medicinal importance and interest for drug development. Herein, four polyphenolic compounds comprising catechol (1), caffeic acid (II), gallic acid (III), and pyrogallol (IV) have been isolated from a medicinal specie, Fagonia indica, by applying silica gel column chromatography. These compounds were identified by using gas chromatography-mass spectrometry (GC-MS) analysis and confirmed by geometric computational analysis. According to computational results, caffeic acid has shown the highest biological activation due to higher chemical softness, electronegativity (χ (eV) = -648.644), and electrostatic potential value (-8.424 × 10-2 to +8.424 × 10-2), while smaller values of chemical potential (-0.269), ELUMO (-0.080), and energy gap (ΔE = 0.149). The Mulliken atomic charges were calculated by using DFT/B3LYP with basis set 6-311G for the determination of active sites. The oxygen atom of catechol showed highest nucleophilic characteristic with a more negative charge (08 = -0.695), and pyrogallol indicated a strong electrophilic center at C14 = 0.415 with a higher positive charge. Moreover, UV-visible absorption spectra and a detailed study of vibrational frequencies for all phenolic compounds by employing the DFT approach with 3-21G, 6-31G, and 6-311G basis sets at the ground-state level showed the great agreement with experimental results. ANOVA has been applied to validate the theoretical data. Results suggest that compounds I-IV are suitable in diverse fields.
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Affiliation(s)
- Rabia Riaz
- Department of Chemistry, Government College Women University Faisalabad 38000, Pakistan
| | - Shagufta Parveen
- Department of Chemistry, Government College Women University Faisalabad 38000, Pakistan
| | - Maryam Rashid
- Department of Chemistry, Government College Women University Faisalabad 38000, Pakistan
| | - Nusrat Shafiq
- Department of Chemistry, Government College Women University Faisalabad 38000, Pakistan
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7
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Bahota A, Singh KK, Yadav A, Chaudhary R, Agrawal N, Tandon P. Density Functional Theory Study of Cu 6 Nanoclusters as a Phenylalanine Detector. ACS OMEGA 2024; 9:276-282. [PMID: 38222619 PMCID: PMC10785667 DOI: 10.1021/acsomega.3c04820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/14/2023] [Indexed: 01/16/2024]
Abstract
Research on amino acids is an attractive area because of their application in metabolism, cancer treatment, growth, and repair of body tissue, and RNA and DNA syntheses. Twenty amino acids are primarily responsible for protein synthesis. In our study, we used a Cu6 nanocluster as an amino acid detector. For the investigation, we adsorbed amino acids on the Cu6 nanocluster and studied their UV-visible spectra. It is observed that all of the Cu6-amino acid complexes have peaks at near 380 nm wavelength except the Cu-phenylalanine complex, where two UV-visible peaks are found at wavelengths 351 nm (excitation energy 3.49 eV) and 403 nm (excitation energy 3.02 eV), respectively, which originated from the HOMO - 2 to LUMO (28%) and HOMO - 1 to LUMO (38%) transitions. Due to this unique transition, the Cu6 nanocluster can be used for the detection of the phenylalanine amino acid out of the 20 amino acids.
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Affiliation(s)
- Ashok
Singh Bahota
- Department of Physics, University
of Lucknow, 226007 Lucknow, Uttar Pradesh, India
| | - Keshav Kumar Singh
- Department of Physics, University
of Lucknow, 226007 Lucknow, Uttar Pradesh, India
| | - Arti Yadav
- Department of Physics, University
of Lucknow, 226007 Lucknow, Uttar Pradesh, India
| | - Rajni Chaudhary
- Department of Physics, University
of Lucknow, 226007 Lucknow, Uttar Pradesh, India
| | - Neelam Agrawal
- Department of Physics, University
of Lucknow, 226007 Lucknow, Uttar Pradesh, India
| | - Poonam Tandon
- Department of Physics, University
of Lucknow, 226007 Lucknow, Uttar Pradesh, India
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8
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Getahun M, Nesru Y, Ahmed M, Satapathy S, Shenkute K, Gupta N, Naimuddin M. Phytochemical Composition, Antioxidant, Antimicrobial, Antibiofilm, and Antiquorum Sensing Potential of Methanol Extract and Essential Oil from Acanthus polystachyus Delile (Acanthaceae). ACS OMEGA 2023; 8:43024-43036. [PMID: 38024770 PMCID: PMC10653062 DOI: 10.1021/acsomega.3c06246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/20/2023] [Accepted: 10/12/2023] [Indexed: 12/01/2023]
Abstract
The evolution of microbes in response to conventional antimicrobials leads to antimicrobial resistance (AMR) and multidrug resistance (MDR), and it is a global threat to public health. Natural products are possible solutions to this massive challenge. In this study, the potential of Acanthus polystachyus extracts was investigated for phytochemical composition and biological properties as antimicrobials. Gas chromatography-mass spectra (GC-MS) analysis of methanol extract (ME) and essential oil (EO) detected 79 and 20 compounds, respectively. The major compounds identified in ME and their abundance were β-sitosterol acetate (16.06%), cholest-5-en-3-yl (9Z)-9-octadecenoate (9.54%), 1-dodecanol (7.57%), (S)-(E)-(-)-4-acetoxy-1-phenyl-2-dodecen-1-one (6.03%), neophytadiene (5.7%), (E)-2-nonadecene (3.9%), hexanol-4-D2 (2.92%), and decane (2.4%). Most compounds have known bioactive functions. In EO, the major compounds were stearyl alcohol (25.38%); cis-9-tetradecenoic acid, isobutyl ester (22.95%); butyl 9-tetradecenoate (10.62%); 11,13-dimethyl-12-tetradecen-1-ol acetate (10.14%); ginsenol (3.48%); and diisooctyl phthalate (2.54%). All compounds are known to be bioactive. The antioxidant activity of ME and EO ranged from 48.3 to 84.2% radical scavenging activity (RSA) and 45.6 to 82% RSA, respectively, with dose dependency. The disc diffusion assay for the antimicrobial activity of ME revealed high inhibition against Acenetobacter baumannii (130.2%), Pseudomonas aeruginosa (100.3%), and Staphylococcus aureus (87.7%). The MIC, MBC/MFC, and MBIC values for ME were 0.5-1.0, 2-4, and 0.5-1.0 mg/mL and for EO were 0.31-0.62, 1.25-2.5, and 0.31-0.62 μL/mL, respectively, indicating inhibition potential as well as inhibition of biofilm formation. The tolerance test values indicated bactericidal activity against most strains and bacteriostatic/fungistatic activity against A. baumannii, E. faecalis, and C. albicans. The antiquorum sensing activity of ME achieved by pyocyanin inhibition assay on P. aeruginosa showed a 51.6% inhibition at 500 μg/mL. These results suggest that ME and EO derived from A. polystachyus leaves are potent, valuable, cost-effective antioxidants and antimicrobials. Both extracts may effectively combat pathogenic and resistant microbes.
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Affiliation(s)
- Meron Getahun
- Department
of Applied Biology, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888 Adama, Ethiopia
| | - Yonatan Nesru
- Department
of Applied Biology, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888 Adama, Ethiopia
| | - Muktar Ahmed
- Institute
of Pharmaceutical Sciences, Adama Science
and Technology University, P.O. Box 1888 Adama, Ethiopia
| | - Sunita Satapathy
- Department
of Zoology, School of Applied Science, Centurion
University of Technology & Management, Bhubaneswar 752050, Odisha, India
| | - Kebede Shenkute
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888 Adama, Ethiopia
| | - Neeraj Gupta
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888 Adama, Ethiopia
| | - Mohammed Naimuddin
- Department
of Applied Biology, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888 Adama, Ethiopia
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9
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Strapasson GB, de C Flach E, Assis M, Corrêa SA, Longo E, Machado G, Santos JFL, Weibel DE. Eco-friendly Synthesis of Silver Nanoparticles and its Application in Hydrogen Photogeneration and Nanoplasmonic Biosensing. Chemphyschem 2023; 24:e202300002. [PMID: 37535823 DOI: 10.1002/cphc.202300002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/05/2023]
Abstract
Environmentally friendly methods for silver nanoparticles (AgNPs) synthesis without the use of hazardous chemicals have recently drawn attention. In this work, AgNPs have been synthesized by microwave irradiation using only honey solutions or aqueous fresh pink radish extracts. The concentrations of honey, radish extract, AgNO3 and pH were varied. AgNPs presented mean sizes between 7.0 and 12.8 nm and were stable up to 120 days. The AgNPs were employed as co-catalyst (TiO2 @AgNPs) to increase the hydrogen photogeneration under UV-vis and only visible light irradiation, when compared to pristine TiO2 NPs. The prepared photocatalyst also showed hydrogen generation under visible light. Additionally, AgNPs were used to assemble a nanoplasmonic biosensor for the biodetection of extremely low concentrations of streptavidin, owing to its specific binding to biotin. It is shown here that green AgNPs are versatile nanomaterials, thus being potential candidates for hydrogen photogeneration and biosensing applications.
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Affiliation(s)
- Guilherme B Strapasson
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves 9500, P.O.Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Eduarda de C Flach
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves 9500, P.O.Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Marcelo Assis
- Department of Analytical and Physical Chemistry, University Jaume I (UJI), Castelló, 12071, Spain
| | - Silma A Corrêa
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves 9500, P.O.Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Elson Longo
- CDMF, Federal University of Sao Carlos - UFSCar, P.O. Box 676, 13565e905, São Carlos, São Paulo, Brazil
| | - Giovanna Machado
- Centro de Tecnologias Estratégicas do Nordeste (CETENE), Av. Prof. Luís Freire, n° 01 - CidadeUniversitária, Recife/PE, 50.740-545, Brazil
- Current Adress: Institute of Chemistry, University of Campinas, UNICAMP, Campinas, 13083-970, São Paulo, Brazil
| | - Jacqueline F L Santos
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves 9500, P.O.Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Daniel E Weibel
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves 9500, P.O.Box 15003, 91501-970, Porto Alegre, RS, Brazil
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10
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Csuti A, Zheng B, Zhou H. Post pH-driven encapsulation of polyphenols in next-generation foods: principles, formation and applications. Crit Rev Food Sci Nutr 2023:1-15. [PMID: 37722872 DOI: 10.1080/10408398.2023.2258214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
To meet the needs of a growing global population (∼10 billion by 2050), there is an urgent demand for sustainable, healthy, delicious, and affordable next-generation foods. Natural polyphenols, which are abundant in edible plants, have emerged as promising food additives due to their potential health benefits. However, incorporating polyphenols into food products presents various challenges, including issues related to crystallization, low water-solubility, limited bioavailability, and chemical instability. pH-driven or pH-shifting approaches have been proposed to incorporate polyphenols into the delivery systems. Nevertheless, it is unclear whether they can be generally used for the encapsulation of polyphenols into next-generation foods. Here, we highlight a post pH-driven (PPD) approach as a viable solution. The PPD approach inherits several advantages, such as simplicity, speed, and environmental friendliness, as it eliminates the need for heat, organic solvents, and complex equipment. Moreover, the PPD approach can be widely applied to different polyphenols and food systems, enhancing its versatility while also potentially contributing to reducing food waste. This review article aims to accelerate the implementation of the PPD approach in the development of polyphenol-fortified next-generation foods by providing a comprehensive understanding of its fundamental principles, encapsulation techniques, and potential applications in plant-based foods.
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Affiliation(s)
- Aron Csuti
- Department of Food Science and Technology, College of Agricultural and Environmental Sciences, University of Georgia, Griffin, Georgia, USA
| | - Bingjing Zheng
- Research and Development, GNT Group, Dallas, North Carolina, USA
| | - Hualu Zhou
- Department of Food Science and Technology, College of Agricultural and Environmental Sciences, University of Georgia, Griffin, Georgia, USA
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Reyes-Pérez JA, Roa-Morales G, De León-Condes CA, Balderas-Hernández P. Nanocomposites from spent coffee grounds and iron/zinc oxide: green synthesis, characterization, and application in textile wastewater treatment. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 88:1547-1563. [PMID: 37768754 PMCID: wst_2023_285 DOI: 10.2166/wst.2023.285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
This study reports on a novel composite of bimetallic FeO/ZnO nanoparticles supported by spent coffee grounds (SCGs). The leaves of eucalyptus (Eucalyptus globulus Labill) and trumpet (Cuphea aequipetala Cav), with their high antioxidant content, serve as bio-reductant agents for the green synthesis of nanoparticles. It was characterized using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and transmission electron microscopy (TEM). Stable nanoparticles were produced with different diameters of 5-30 nm, and they were applied as catalysts in Fenton-like processes. Box-Behnken experimental design (BBD) was used to determine the optimal removal efficiency with three factors and was used in the degradation of textile dyes from wastewater. The nanocomposite displayed a high decolorization ratio (88%) of indigo carmine in the presence of H2O2 combined. This resulted in a reduction in chemical oxygen demand (COD) of 56% at 120 min of contact time at an initial pH of 3.0 and a 0.5 g/L of catalyst dose, a H2O2 concentration of 8.8 mM/L, an initial dye concentration of 100 mg/L, and a temperature of 25 °C.
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Affiliation(s)
- J A Reyes-Pérez
- Tecnológico Nacional de México/ TES de Tianguistenco, Km. 22, Carretera Tenango - La Marquesa Santiago Tilapa, Santiago Tianguistenco 52650, México E-mail:
| | - G Roa-Morales
- Universidad Autónoma del Estado de México, (UAEMex), Centro Conjunto de Investigación en Química Sustentable (CCIQS) UAEM-UNAM, Carretera Toluca-Atlacomulco, Km 14.5, Toluca, MEX 50200, México
| | - C A De León-Condes
- Tecnológico Nacional de México/ TES de Tianguistenco, Km. 22, Carretera Tenango - La Marquesa Santiago Tilapa, Santiago Tianguistenco 52650, México
| | - P Balderas-Hernández
- Universidad Autónoma del Estado de México, (UAEMex), Centro Conjunto de Investigación en Química Sustentable (CCIQS) UAEM-UNAM, Carretera Toluca-Atlacomulco, Km 14.5, Toluca, MEX 50200, México
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Post grafted gallic acid to chitosan-Ag hybrid nanoparticles via free radical-induced grafting reactions. Int J Biol Macromol 2023; 233:123395. [PMID: 36702225 DOI: 10.1016/j.ijbiomac.2023.123395] [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: 11/22/2022] [Revised: 01/06/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023]
Abstract
The present study proposes two unique systems using free radical-induced grafting reactions to combine Ag, chitosan (CS) and gallic acid (GA) into a single particulate nanostructure. GA-grafted-CS (GA-g-CS) was used to reduce Ag+ to Ag0, and producing Ag-GA-g-CSNPs (hybrid NPs I). Also, GA was grafted into CS-AgNPs, to form GA-g-CS AgNPs (hybrid NPs II). Although there were previous attempts to graft GA into CS, this is first time to graft GA into CS-AgNPs. The study aimed to enhance biocompatibility, antibacterial and antioxidant properties of CS-AgNPs via grafted GA. Grafting GA into CS-AgNPs was confirmed by UV-Vis, DLS, DSC/TGA, XRD, EDX and FTIR. The morphology and size of NPs were studied by TEM and SEM. The decrease of ζ-potential from +50 mV in CS-Ag NPs to +33 and + 29 mV, in the presented 2 nanoforms hybrid NPs I and II, respectively, is an indication for the successful GA graft. Among all samples, hybrid NPs II showed lower toxicity, higher antioxidant and antibacterial activity. The obtained results revealed that grafting GA to CS-AgNPs, as a new method to combine Ag, CS and GA in a uniparticulate structure, is a unique process which may deserve a more future consideration.
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Mazher M, Ishtiaq M, Hamid B, Haq SM, Mazhar A, Bashir F, Mazhar M, Mahmoud EA, Casini R, Alataway A, Dewidar AZ, Elansary HO. Biosynthesis and Characterization of Calcium Oxide Nanoparticles from Citrullus colocynthis Fruit Extracts; Their Biocompatibility and Bioactivities. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2768. [PMID: 37049061 PMCID: PMC10096045 DOI: 10.3390/ma16072768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/24/2023] [Accepted: 03/28/2023] [Indexed: 06/19/2023]
Abstract
Modern nanotechnology encompasses every field of life. Nowadays, phytochemically fabricated nanoparticles are being widely studied for their bioactivities and biosafety. The present research studied the synthesis, characterization, stability, biocompatibility, and in vitro bioactivities of calcium oxide nanoparticles (CaONPs). The CaONPs were synthesized using Citrullus colocynthis ethanolic fruit extracts. Greenly synthesized nanoparticles had an average size of 35.93 ± 2.54 nm and showed an absorbance peak at 325 nm. An absorbance peak in this range depicts the coating of phenolic acids, flavones, flavonols, and flavonoids on the surface of CaONPs. The XRD pattern showed sharp peaks that illustrated the preferred cubic crystalline nature of triturate. A great hindrance to the use of nanoparticles in the field of medicine is their extremely reactive nature. The FTIR analysis of the CaONPs showed a coating of phytochemicals on their surface, due to which they showed great stability. The vibrations present at 3639 cm-1 for alcohols or phenols, 2860 cm-1 for alkanes, 2487 cm-1 for alkynes, 1625 cm-1 for amines, and 1434 cm-1 for carboxylic acids and aldehydes show adsorption of phytochemicals on the surface of CaONPs. The CaONPs were highly stable over time; however, their stability was slightly disturbed by varying salinity and pH. The dialysis membrane in vitro release analysis revealed consistent nanoparticle release over a 10-h period. The bioactivities of CaONPs, C. colocynthis fruit extracts, and their synergistic solution were assessed. Synergistic solutions of both CaONPs and C. colocynthis fruit extracts showed great bioactivity and biosafety. The synergistic solution reduced cell viability by only 14.68% and caused only 16% hemolysis. The synergistic solution inhibited Micrococcus luteus slightly more effectively than streptomycin, with an activity index of 1.02. It also caused an 83.87% reduction in free radicals.
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Affiliation(s)
- Mubsher Mazher
- Department of Botany, Mirpur University of Science and Technology (MUST), Mirpur 10040, Pakistan; (M.I.); (F.B.); (M.M.)
| | - Muhammad Ishtiaq
- Department of Botany, Mirpur University of Science and Technology (MUST), Mirpur 10040, Pakistan; (M.I.); (F.B.); (M.M.)
| | - Bilqeesa Hamid
- Department of Chemistry, University of Kashmir Srinagar, Srinagar 190006, India;
| | - Shiekh Marifatul Haq
- Department of Ethnobotany, Institute of Botany, Ilia State University, Tbilisi 0162, Georgia;
| | - Atiya Mazhar
- Department of Chemistry, Government Post Graduate College for Women, Bhimber 10038, Pakistan;
| | - Faiza Bashir
- Department of Botany, Mirpur University of Science and Technology (MUST), Mirpur 10040, Pakistan; (M.I.); (F.B.); (M.M.)
- Biological Research Center, Institute of Plant Biology, 6726 Szeged, Hungary
| | - Mussaddaq Mazhar
- Department of Botany, Mirpur University of Science and Technology (MUST), Mirpur 10040, Pakistan; (M.I.); (F.B.); (M.M.)
| | - Eman A. Mahmoud
- Department of Food Industries, Faculty of Agriculture, Damietta University, Damietta 34511, Egypt;
| | - Ryan Casini
- School of Public Health, University of California, 2121 Berkeley Way, Berkeley, CA 94704, USA;
| | - Abed Alataway
- Prince Sultan Bin Abdulaziz International Prize for Water Chair, Prince Sultan Institute for Environmental, Water and Desert Research, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.); (A.Z.D.)
| | - Ahmed Z. Dewidar
- Prince Sultan Bin Abdulaziz International Prize for Water Chair, Prince Sultan Institute for Environmental, Water and Desert Research, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.); (A.Z.D.)
- Department of Agricultural Engineering, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Hosam O. Elansary
- Prince Sultan Bin Abdulaziz International Prize for Water Chair, Prince Sultan Institute for Environmental, Water and Desert Research, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.); (A.Z.D.)
- Department of Plant Production, College of Food & Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia
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Optimized Baccharis dracunculifolia extract as photoprotective and antioxidant: in vitro and in silico assessment. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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15
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Souza PVR, Martins VGFC, Chagas MDSS, Moragas-Tellis CJ, Behrens MD, Moreira DL. Validation of a New HPLC-DAD Method to Quantify 3-Deoxyanthocyanidins Based on Carajurin in Medicinal Plants and for Chemical Ecology Studies. PLANTS (BASEL, SWITZERLAND) 2023; 12:1057. [PMID: 36903917 PMCID: PMC10004818 DOI: 10.3390/plants12051057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/13/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
Anthocyanidins are found in nature mainly as pelargonidin, cyanidin, peonidin, delphinidin, petunidin, and malvidin derivatives. These compounds are found free or as glycoside derivatives which are responsible for the color (red, blue, and violet) of some foods and are responsible for attracting seed dispersers. They are grouped into 3-hydroxyanthocyanidins, 3-deoxyanthocyanidins (3D-anth), and O-methylated anthocyanidins. A new method was developed and validated to quantify 3D-anth in plant-rich extracts. To test the new method, Arrabidaea chica Verlot was selected as it is widely used in folk medicine, and it is rich in 3D-anth. The new method was developed by HPLC-DAD and expressed 3D-anth as carajurin content. Carajurin was chosen as the reference standard due to its role as a biological marker for the antileishmanial activity for A. chica. The selected method used a silica-based phenyl column, a mobile phase composed of potassium dihydrogen phosphate buffer, acetonitrile, and methanol, in a gradient elution mode and detection at 480 nm. The method reliability was confirmed by verifying selectivity, linearity, precision, recovery, and robustness. This method contributes to quality control and development of a possible active pharmaceutical ingredient from A. chica as well as it can be used to evaluate 3D-anth in plant extracts with chemical ecology interest.
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Affiliation(s)
- Paulo Victor R. Souza
- Laboratory of Natural Products for Public Health, Pharmaceutical Technology Institute (Farmanguinhos), Oswaldo Cruz Foundation, Rio de Janeiro 21041-250, Brazil
- Environmental Toxicology Laboratory, National School of Public Health (ENSP), Oswaldo Cruz Foundation, Rio de Janeiro 21041-361, Brazil
- Postgraduate Program in Translational Research in Drugs and Medicines, Pharmaceutical Technology Institute (Farmanguinhos), Oswaldo Cruz Foundation, Rio de Janeiro 21041-250, Brazil
| | - Vanessa G. F. C. Martins
- Environmental Toxicology Laboratory, National School of Public Health (ENSP), Oswaldo Cruz Foundation, Rio de Janeiro 21041-361, Brazil
| | - Maria do Socorro S. Chagas
- Laboratory of Natural Products for Public Health, Pharmaceutical Technology Institute (Farmanguinhos), Oswaldo Cruz Foundation, Rio de Janeiro 21041-250, Brazil
| | - Carla J. Moragas-Tellis
- Laboratory of Natural Products for Public Health, Pharmaceutical Technology Institute (Farmanguinhos), Oswaldo Cruz Foundation, Rio de Janeiro 21041-250, Brazil
| | - Maria D. Behrens
- Laboratory of Natural Products for Public Health, Pharmaceutical Technology Institute (Farmanguinhos), Oswaldo Cruz Foundation, Rio de Janeiro 21041-250, Brazil
| | - Davyson L. Moreira
- Laboratory of Natural Products for Public Health, Pharmaceutical Technology Institute (Farmanguinhos), Oswaldo Cruz Foundation, Rio de Janeiro 21041-250, Brazil
- Environmental Toxicology Laboratory, National School of Public Health (ENSP), Oswaldo Cruz Foundation, Rio de Janeiro 21041-361, Brazil
- Postgraduate Program in Translational Research in Drugs and Medicines, Pharmaceutical Technology Institute (Farmanguinhos), Oswaldo Cruz Foundation, Rio de Janeiro 21041-250, Brazil
- Laboratory of Natural Products, Rio de Janeiro Botanical Garden Research Institute, Rio de Janeiro 22460-030, Brazil
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Zhao X, He XM, Liu F, Duan CQ, He F. Intramolecular copigmentation in malvidin-3-O-(6-O-p-coumaryl)-glucoside: Insights from experimental and theoretical study. Food Chem 2022; 391:133255. [DOI: 10.1016/j.foodchem.2022.133255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 04/22/2022] [Accepted: 05/17/2022] [Indexed: 11/04/2022]
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17
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Šimunková M, Biela M, Štekláč M, Hlinčík A, Klein E, Malček M. Cu(II) complexes of flavonoids in solution: Impact of the Cu(II) ion on the antioxidant and DNA-intercalating properties. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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18
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Kamli MR, Alzahrani EA, Albukhari SM, Ahmad A, Sabir JSM, Malik MA. Combination Effect of Novel Bimetallic Ag–Ni Nanoparticles with Fluconazole against Candida albicans. J Fungi (Basel) 2022; 8:jof8070733. [PMID: 35887488 PMCID: PMC9316949 DOI: 10.3390/jof8070733] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/01/2022] [Accepted: 07/05/2022] [Indexed: 11/16/2022] Open
Abstract
The increasing frequency of antifungal drug resistance among pathogenic yeast “Candida” has posed an immense global threat to the public healthcare sector. The most notable species of Candida causing most fungal infections is Candida albicans. Furthermore, recent research has revealed that transition and noble metal combinations can have synergistic antimicrobial effects. Therefore, a one-pot seedless biogenic synthesis of Ag-Ni bimetallic nanoparticles (Ag–Ni NPs) using Salvia officinalis aqueous leaf extract is described. Various techniques, such as UV–vis, FTIR, XRD, SEM, EDX, and TGA, were used to validate the production of Ag-Ni NPs. The antifungal susceptibility of Ag-Ni NPs alone and in combination with fluconazole (FLZ) was tested against FLZ-resistant C. albicans isolate. Furthermore, the impacts of these NPs on membrane integrity, drug efflux pumps, and biofilms formation were evaluated. The MIC (1.56 μg/mL) and MFC (3.12 μg/mL) results indicated potent antifungal activity of Ag-Ni NPs against FLZ-resistant C. albicans. Upon combination, synergistic interaction was observed between Ag-Ni NPs and FLZ against C. albicans 5112 with a fractional inhibitory concentration index (FICI) value of 0.31. In-depth studies revealed that Ag-Ni NPs at higher concentrations (3.12 μg/mL) have anti-biofilm properties and disrupt membrane integrity, as demonstrated by scanning electron microscopy results. In comparison, morphological transition was halted at lower concentrations (0.78 μg/mL). From the results of efflux pump assay using rhodamine 6G (R6G), it was evident that Ag-Ni NPs blocks the efflux pumps in the FLZ-resistant C. albicans 5112. Targeting biofilms and efflux pumps using novel drugs will be an alternate approach for combatting the threat of multi-drug resistant (MDR) stains of C. albicans. Therefore, this study supports the usage of Ag-Ni NPs to avert infections caused by drug resistant strains of C. albicans.
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Affiliation(s)
- Majid Rasool Kamli
- Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (M.R.K.); (J.S.M.S.)
- Center of Excellence in Bionanoscience Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Elham A. Alzahrani
- Chemistry Department, Faculty of Sciences, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (E.A.A.); (S.M.A.)
| | - Soha M. Albukhari
- Chemistry Department, Faculty of Sciences, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (E.A.A.); (S.M.A.)
| | - Aijaz Ahmad
- Clinical Microbiology and Infectious Diseases, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa;
- Infection Control Unit, Charlotte Maxeke Johannesburg Academic Hospital, National Health Laboratory Service, Johannesburg 2193, South Africa
| | - Jamal S. M. Sabir
- Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (M.R.K.); (J.S.M.S.)
- Center of Excellence in Bionanoscience Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Maqsood Ahmad Malik
- Chemistry Department, Faculty of Sciences, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (E.A.A.); (S.M.A.)
- Correspondence:
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Jan S, Ahmad J, Dar MM, Wani AA, Tahir I, Kamili AN. Development and validation of a reverse phase HPLC-DAD method for separation, detection & quantification of rutin and quercetin in buckwheat ( Fagopyrum spp .). JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:2875-2883. [PMID: 35734108 PMCID: PMC9206947 DOI: 10.1007/s13197-021-05312-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 05/25/2021] [Accepted: 11/04/2021] [Indexed: 06/15/2023]
Abstract
Buckwheat has tremendous nutraceutical potential owing to its rutin and quercetin content. The aim of this study was to optimise and validate an analytical method for separating and quantifying these two flavonoids from it. Factors, such as range, linearity, precision, accuracy, limit of detection and limit of quantification, were evaluated for the two compounds using high performance liquid chromatography. On the basis of resolution and symmetry, mobile phase consisting of methanol and methanol:water:acetic acid in the ratio of (100:150:5), flow rate 1.3 ml/min and column temperature 30 °C were found to be optimal analytical conditions. Calibration curves exhibited good linearity with correlation coefficient of 0.995 & 0.9907 over the range 60-180 μg/ml & 2-10 μg/ml for rutin and quercetin respectively. LOD and LOQ values for rutin and quercetin were 6.36, 0.58 and 19.28, 1.77 μg/ml respectively. Recovery values of 96-100.8% confirmed that the method was accurate for rutin and quercetin analysis. This validated method was successfully used to analyse rutin and quercetin in leaves and seeds of buckwheat plant.
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Affiliation(s)
- Sabbi Jan
- Cytogenetics & Plant Molecular Biology Laboratory, Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir India
| | - Javaid Ahmad
- Cytogenetics & Plant Molecular Biology Laboratory, Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir India
| | - Mohd Masarat Dar
- Department of Food Science & Technology, University of Kashmir, Srinagar, Jammu and Kashmir India
| | - Aijaz A. Wani
- Cytogenetics & Plant Molecular Biology Laboratory, Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir India
| | - Inayatullah Tahir
- Plant Physiology and Biochemistry Research Laboratory, Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir India
| | - Azra N. Kamili
- Centre of Research for Development (CORD), University of Kashmir, Srinagar, Jammu and Kashmir India
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De R, Jo KW, Kim KT. Influence of Molecular Structures on Fluorescence of Flavonoids and Their Detection in Mammalian Cells. Biomedicines 2022; 10:biomedicines10061265. [PMID: 35740288 PMCID: PMC9220233 DOI: 10.3390/biomedicines10061265] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/19/2022] [Accepted: 05/27/2022] [Indexed: 12/10/2022] Open
Abstract
Flavonoids are being increasingly applied for the treatment of various diseases due to their anti-cancer, anti-oxidant, anti-inflammatory, and anti-viral properties. However, it is often challenging to detect their presence in cells and tissues through bioimaging, as most of them are not fluorescent or are too weak to visualize. Here, fluorescence possibilities of nine naturally occurring analogous flavonoids have been investigated through UV/visible spectroscopy, molecular structure examination, fluorescent images in mammalian cells and their statistical analysis employing aluminum chloride and diphenylboric acid 2-aminoethyl ester as fluorescence enhancers. It is found that, in order to form a stable fluorescent complex with an enhancer, flavonoids should have a keto group at C4 position and at least one -OH group at C3 or C5 position. Additionally, the presence of a double bond at C2–C3 can stabilize extended quinonoid structure at the cinnamoyl moiety, which thereby enhances the complex stability. A possible restriction to the free rotation of ring B around C1′–C2 single bond can contribute to the further enhancement of fluorescence. Thus, these findings can act as a guide for distinguishing flavonoids capable of exhibiting fluorescence from thousands of their analogues. Finally, using this technique, flavonoids are detected in neuroblastoma cells and their time course assay is conducted via fluorescence imaging. Their cellular uptake efficiency is found to be high and differential in nature and their distribution throughout the cytoplasm is clearly detected.
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Roquete Amparo T, Cherem Peixoto Silva A, Brandão Seibert J, dos Santos da Silva D, Martins Rebello dos Santos V, Melo de Abreu Vieira P, Célio Brandão G, Henrique Bianco de Souza G, Aloise Maneira Corrêa Santos B. In vitro and in silico investigation of the photoprotective and antioxidant potential of Protium spruceanum leaves and its main flavonoids. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Analysis of Proanthocyanidins in Plant Materials Using Hydrophilic Interaction HPLC-QTOF-MS. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27092684. [PMID: 35566031 PMCID: PMC9105534 DOI: 10.3390/molecules27092684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/14/2022] [Accepted: 04/19/2022] [Indexed: 11/16/2022]
Abstract
Proanthocyanidins (PACs) have been proven to possess a wide range of biological activities, but complex structures limit their study of structure–function relationships. Therefore, an efficient and general method using hydrophilic interaction high-performance liquid chromatography coupled with high-resolution quadrupole time-of-flight tandem mass spectrometry (HILIC-QTOF-MS) was established to analyze PACs from different plant materials. This method was successfully applied to characterize PACs from Chinese bayberry (Myrica rubra Sieb. et Zucc.) leaves (BLPs), sorghum testa (STPs) and grape seeds (GSPs). BLPs with the degree of polymerization (DP) from 1 to 8 were separated. BLPs are mainly B-type prodelphinidins and A-type BLPs were first found in this study. STPs and GSPs belonging to procyanidins showed DP from 3 to 11 and 2 to 12, respectively. A-type linkages were found for every DP of STPs and GSPs, which were first found. These results showed that HILIC-QTOF-MS can be successfully applied for analyzing PACs from different plant materials, which is necessary for the prediction of their potential health benefits.
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Hostnik G, Tošović J, Štumpf S, Petek A, Bren U. The influence of pH on UV/Vis spectra of gallic and ellagic acid: A combined experimental and computational study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120472. [PMID: 34653808 DOI: 10.1016/j.saa.2021.120472] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/28/2021] [Accepted: 10/03/2021] [Indexed: 06/13/2023]
Abstract
The pH dependence of the UV/Vis spectrum of gallic and ellagic acid was measured in a buffer-free solution to obtain reliable data at wavelengths bellow 230 nm. UV/Vis absorption spectra were also calculated for all possible ionised species of gallic and ellagic acid using time dependent density functional theory (TD-DFT). From pKa values of gallic and ellagic acid the molar fraction of different ionised species was calculated for each pH value. Finally, the simulated spectra at different pH values were obtained as a weighted average of spectra of neutral, once, twice, three-times, and four-times deprotonated species. The calculated spectra were then compared to the experimental spectra, and the peaks in the experimental spectrum were explained in the terms of main electronic transitions that results in the observed absorption bands. At low pH values the agreement between the experimental and calculated spectra was excellent. At near-neutral pH values the majority of the experimental spectra features were well reproduced in the calculated spectra. A satisfactory agreement between experimental and calculated spectrum at high pH values was also achieved by incorporating the calculated spectra of the oxidised species of gallic acid as well as ellagic acid spectra with one lactone ring open.
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Affiliation(s)
- Gregor Hostnik
- Faculty of Chemistry and Chemical Technology, University of Maribor, Smetanova 17, Maribor SI-2000, Slovenia
| | - Jelena Tošović
- Faculty of Chemistry and Chemical Technology, University of Maribor, Smetanova 17, Maribor SI-2000, Slovenia
| | - Sara Štumpf
- Faculty of Chemistry and Chemical Technology, University of Maribor, Smetanova 17, Maribor SI-2000, Slovenia
| | - Anja Petek
- Faculty of Chemistry and Chemical Technology, University of Maribor, Smetanova 17, Maribor SI-2000, Slovenia
| | - Urban Bren
- Faculty of Chemistry and Chemical Technology, University of Maribor, Smetanova 17, Maribor SI-2000, Slovenia; Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaşka 8, Koper SI-6000, Slovenia.
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Pan H, Wang Y, Xu X, Qian Z, Cheng H, Ye X, Chen S. Simultaneous Extraction and Depolymerization of Condensed Tannins from Chinese Bayberry Leaves for Improved Bioavailability and Antioxidant Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:11292-11302. [PMID: 34533948 DOI: 10.1021/acs.jafc.1c03962] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Biorefineries of polyphenols from plant leaves maximize their commercial value for developing biomedicines and nutrients. However, condensed tannins (CTs) constitute extensive polyphenols from plant leaves, which hinders the maximization due to extremely low bioavailability. Therefore, a simple, and sustainable one-step method was established to simultaneously extract polyphenols and depolymerize CTs with only endogenous flavan-3-ols from Chinese bayberry leaves via acid catalysis, which markedly improved the bioavailability of total polyphenols. Afterward, purification of polyphenols from depolymerized extract was studied with specific polymeric resins. Silica C18 showed the highest absorption efficiency of total polyphenols, while Amberlite XAD-7 and XAD-2 presented high selectivity toward polyphenols with high and low molecular weight, respectively. Combined depolymerization of CTs and purification with Amberlite XAD-2 showed the highest bioavailability and cellular free-radical scavenging activity of total polyphenols, which proved to be an ideal methodology for improving the bioavailability and activity of polyphenols from plant leaves.
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Affiliation(s)
- Haibo Pan
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, PR China
| | - Yi Wang
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, PR China
| | - Xinlei Xu
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, PR China
| | - Ziqi Qian
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, PR China
| | - Huan Cheng
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, PR China
| | - Xingqian Ye
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, PR China
| | - Shiguo Chen
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, PR China
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Lohtander T, Grande R, Österberg M, Laaksonen P, Arola S. Bioactive Films from Willow Bark Extract and Nanocellulose Double Network Hydrogels. FRONTIERS IN CHEMICAL ENGINEERING 2021. [DOI: 10.3389/fceng.2021.708170] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In nature, the protection of sensitive components from external threats relies on the combination of physical barriers and bioactive secondary metabolites. Polyphenols and phenols are active molecules that protect organisms from physical and chemical threats such as UV irradiation and oxidative stress. The utilization of biopolymers and natural bioactive phenolic components as protective coating layers in packaging solutions would enable easier recyclability of materials and greener production process compared with the current plastic-based products. Herein, we produce a fully wood-based double network material with tunable bioactive and optical properties consisting of nanocellulose and willow bark extract. Willow bark extract, embedded in nanocellulose, was cross-linked into a polymeric nanoparticle network using either UV irradiation or enzymatic means. Based on rheological analysis, atomic force microscopy, antioxidant activity, and transmittance measurements, the cross-linking resulted in a double network gel with enhanced rheological properties that could be casted into optically active films with good antioxidant properties and tunable oxygen barrier properties. The purely biobased, sustainably produced, bioactive material described here broadens the utilization perspectives for wood-based biomass, especially wood-bark extractives. This material has potential in applications where biodegradability, UV shielding, and antioxidant properties of hydrogels or thin films are needed, for example in medical, pharmaceutical, food, and feed applications, but also as a functional barrier coating in packaging materials as the hydrogel properties are transferred to the casted and dried films.
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Kovačević Z, Sutlović A, Matin A, Bischof S. Natural Dyeing of Cellulose and Protein Fibers with the Flower Extract of Spartium junceum L. Plant. MATERIALS 2021; 14:ma14154091. [PMID: 34361289 PMCID: PMC8371470 DOI: 10.3390/ma14154091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/15/2021] [Accepted: 07/19/2021] [Indexed: 11/22/2022]
Abstract
In this study, the natural dye was extracted from Spartium junceum L. (SJL) flowers and applied on cellulose (cotton) and protein (wool) fabric. Fabrics were pre-mordant with alum prior to the dyeing process. Considering the global requirements on zero waste and green policy, the dyeing process was intended to be as much as possible environmentally friendly but still effective. Therefore, mordant concentration was optimized due to the reduction of the negative impact. The efficiency of the dyeing process was investigated by examination of fabrics’ color characteristics and colorfastness to washing properties. In this paper, we have proved that the extracted dye from Spartium junceum L. is an acidic dye (mordant dye) which is more applicable for the treatment of wool fabrics. In this paper, it was proved that phytochemicals responsible for coloring are part of the flavonoids group. The UV absorption spectra of extracted dye show 4 bands in the region of λmax 224, 268, 308 and 346 nm which are ascribed to bands characteristic for flavonoids. Wool fabric pre-mordant with 3% alum and dyed shows great chromatic (C*) properties where C* value is in a range from 47.76 for unwashed samples to 47.50 for samples after 5 washing cycles and color hue (h°) is in a range 82.13 for unwashed samples to 81.52 for samples after 5 washing cycles. The best result regarding the colorfastness properties is shown by the wool sample treated with 3% alum after 5 washing cycles (total difference in color (Delta E*) = 0.87). These results confirm that metal (Al) from alum mordant make strong chemical bonds with wool substrate and dye since Delta E* values decrease in comparison to Delta E* values of the cotton samples treated the same way. The results revealed it is possible to reduce the concentration of mordant up to 3% and obtain satisfactory results regarding the colorfastness. Nevertheless, future research will go in the direction of replacing synthetic mordant with a more environmentally friendly one.
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Affiliation(s)
- Zorana Kovačević
- Department of Textile Chemistry and Ecology, Faculty of Textile Technology, University of Zagreb, 10000 Zagreb, Croatia; (Z.K.); (A.S.)
| | - Ana Sutlović
- Department of Textile Chemistry and Ecology, Faculty of Textile Technology, University of Zagreb, 10000 Zagreb, Croatia; (Z.K.); (A.S.)
| | - Ana Matin
- Department of Agricultural Technology, Storage and Transport, Faculty of Agriculture, University of Zagreb, 10000 Zagreb, Croatia;
| | - Sandra Bischof
- Department of Textile Chemistry and Ecology, Faculty of Textile Technology, University of Zagreb, 10000 Zagreb, Croatia; (Z.K.); (A.S.)
- Correspondence: ; Tel.: +385-1-4877-351
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Deineka VI, Kulchenko YY. Quantum-Chemical Calculations for the Electronic Absorption Spectra of Certain Anthocyanidins. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421070086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Jang D, Jung YS, Seong H, Kim MS, Rha CS, Nam TG, Han NS, Kim DO. Stability of Enzyme-Modified Flavonoid C- and O-Glycosides from Common Buckwheat Sprout Extracts during In Vitro Digestion and Colonic Fermentation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:5764-5773. [PMID: 33973775 DOI: 10.1021/acs.jafc.1c00542] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Common buckwheat sprout (CBS) contains more flavone C-glycosides (FCGs) and flavonol O-glycosides (FOGs) than does common buckwheat seed. Both flavonoids in CBS are well known for providing benefits to human health. However, they are relatively less bioaccessible and more directly degradable to aglycone during digestion than are multiglycosylated flavonoids. To overcome such limitations, the water solubility and digestion stability of FCGs and FOGs were enhanced by transglycosylation using cyclodextrin glycosyltransferase. Gastric conditions had little effect on the stability of FCGs and FOGs and their enzyme-modified compounds. In contrast, under intestinal conditions, transglycosylated FCGs lost a glucose moiety and reverted to their parent compounds before transglycosylation. Under colonic fermentation using human fecal samples, the different profiles and concentrations of short-chain fatty acids were suggested to be mainly due to the presence of transglycosylated FCGs and FOGs. These findings indicate that the process of transglycosylation changes the bioaccessibility of flavonoids in CBS.
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Affiliation(s)
- Davin Jang
- Graduate School of Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Young Sung Jung
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Hyunbin Seong
- Brain Korea 21 Center for Bio-Resource Development, Division of Animal, Horticultural, and Food Sciences, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Mi-Seon Kim
- Graduate School of Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Chan-Su Rha
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Tae Gyu Nam
- Major of Food Science and Biotechnology, Division of Bio-convergence, Kyonggi University, Suwon 16227, Republic of Korea
| | - Nam Soo Han
- Brain Korea 21 Center for Bio-Resource Development, Division of Animal, Horticultural, and Food Sciences, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Dae-Ok Kim
- Graduate School of Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
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Straßmann S, Passon M, Schieber A. Chemical Hemisynthesis of Sulfated Cyanidin-3- O-Glucoside and Cyanidin Metabolites. Molecules 2021; 26:molecules26082146. [PMID: 33917913 PMCID: PMC8068276 DOI: 10.3390/molecules26082146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/31/2021] [Accepted: 04/06/2021] [Indexed: 11/16/2022] Open
Abstract
The metabolism of anthocyanins in humans is still not fully understood, which is partly due to the lack of reference compounds. It is known that sulfation is one way of the complex phase II biotransformation mechanism. Therefore, cyanidin-3-O-glucoside and the cyanidin aglycone were chemically converted to their sulfates by reaction with sulfur trioxide-N-triethylamine complex in dimethylformamide. The reaction products were characterized by UHPLC coupled to linear ion trap and IMS-QTOF mass spectrometry. Based on MS data, retention times, and UV-Vis spectra, the compounds could tentatively be assigned to A-, C-, or B-ring sulfates. Analysis of urine samples from two volunteers after ingestion of commercial blackberry nectar demonstrated the presence of two sulfated derivatives of the cyanidin aglycone and one sulfated derivative of the cyanidin-3-O-glucoside. It was found that both the A ring and the B ring are sulfated by human enzymes. This study marks an important step toward a better understanding of anthocyanin metabolism.
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Structural and Spectral Investigation of a Series of Flavanone Derivatives. Molecules 2021; 26:molecules26051298. [PMID: 33670879 PMCID: PMC7957484 DOI: 10.3390/molecules26051298] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 02/21/2021] [Accepted: 02/25/2021] [Indexed: 12/02/2022] Open
Abstract
Four flavanone Schiff bases (E)-1-(2-phenylchroman-4-ylidene)thiosemicarbazide (FTSC) (1), N′,2-bis((E)-2-phenylchroman-4-ylidene)hydrazine-1-carbothiohydrazide (FTCH) (2), (E)-N’-(2-phenylchroman-4-ylidene)benzohydrazide (FHSB) (3) and (E)-N′-(2-phenylchroman-4-ylidene)isonicotinohydrazide (FIN) (4) were synthesized and evaluated for their electronic and physicochemical properties using experimental and theoretical methods. One of them, (2), consists of two flavanone moieties and one substituent, the rest of the compounds (1, 3, 4) comprises of a flavanone-substituent system in relation to 1:1. To uncover the structural and electronic properties of flavanone Schiff bases, computational simulations and absorption spectroscopy were applied. Additionally, binding efficiencies of the studied compounds to serum albumins were evaluated using fluorescence spectroscopy. Spectral profiles of flavanone Schiff bases showed differences related to the presence of substituent groups in system B of the Schiff base molecules. Based on the theoretically predicted chemical descriptors, FTSC is the most chemically reactive among the studied compounds. Binding regions within human and bovine serum albumins of the ligands studied are in the vicinity of the Trp residue and a static mechanism dominates in fluorescence quenching.
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Liu J, Ma X, Shi W, Xing J, Ma C, Li S, Huang Y. Ultraviolet blocking and antioxidant polyvinyl alcohol films incorporated with baicalin extraction from Scutellaria baicalensis Georgi. JOURNAL OF POLYMER ENGINEERING 2021. [DOI: 10.1515/polyeng-2020-0071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Baicalin, an active flavonoid ingredient of Scutellaria baicalensis Georgi, was extracted by heat reflux extraction and showed the same significance UV absorption property with standard baicalin. Active films were prepared from polyvinyl alcohol (PVA) containing baicalin extract by casting method. The effect of baicalin extracts on the UV-blocking, optical, antioxidant property, water vapor permeability, swelling and mechanical properties of the films were studied. UV–vis transmittance spectra showed that PVA films incorporated with baicalin extract blocked ultraviolet light range from 280–400 nm even with low concentration of baicalin (0.5 wt%) and maintain the high transparency in visible spectrum. The outstanding UV-blocking properties of PVA films incorporated with baicalin extract were also confirmed by Rhodamine B degradation. Baicalin conferred antioxidant properties to PVA films as determined by DPPH radical scavenging activity. Due to the interaction between hydroxy groups of baicalin and PVA molecule, water vapor permeability, swelling and elongation at break of the films were decreased accompanied with the increasing in tensile strength and Young’s modulus. FTIR reveal that the interaction between PVA molecules was significant changed by the introduction of baicalin. These results suggest that PVA film incorporated with baicalin extract can be used for the development of functional protective film.
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Affiliation(s)
- Jinshu Liu
- Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education and Key Laboratory of Polymer Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University , Xi’an 710129 , Shaanxi Province, China
- College of Textile Science and Engineering, Xi’an Polytechnic University , Xi’an 710048 , China
| | - Xiaoyan Ma
- Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education and Key Laboratory of Polymer Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University , Xi’an 710129 , Shaanxi Province, China
| | - Wenzhao Shi
- College of Textile Science and Engineering, Xi’an Polytechnic University , Xi’an 710048 , China
| | - Jianwei Xing
- College of Textile Science and Engineering, Xi’an Polytechnic University , Xi’an 710048 , China
| | - Chaoqun Ma
- College of Textile Science and Engineering, Xi’an Polytechnic University , Xi’an 710048 , China
| | - Susong Li
- College of Textile Science and Engineering, Xi’an Polytechnic University , Xi’an 710048 , China
| | - Yayi Huang
- College of Textile Science and Engineering, Xi’an Polytechnic University , Xi’an 710048 , China
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Šimunková M, Štekláč M, Malček M. Spectroscopic, computational and molecular docking study of Cu( ii) complexes with flavonoids: from cupric ion binding to DNA intercalation. NEW J CHEM 2021. [DOI: 10.1039/d1nj01960k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper(ii) complexes with flavonoids as perspective therapeutic agents with DNA as a target molecule.
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Affiliation(s)
- Miriama Šimunková
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology
- Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37
- Bratislava
- Slovak Republic
| | - Marek Štekláč
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology
- Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37
- Bratislava
- Slovak Republic
| | - Michal Malček
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology
- Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37
- Bratislava
- Slovak Republic
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34
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Ren Y, Wang FY, Lan RT, Fu WQ, Chen ZJ, Lin H, Huang S, Gul RM, Wang J, Xu JZ, Li ZM. Polyphenol-Assisted Chemical Crosslinking: A New Strategy to Achieve Highly Crosslinked, Antioxidative, and Antibacterial Ultrahigh-Molecular-Weight Polyethylene for Total Joint Replacement. ACS Biomater Sci Eng 2020; 7:373-381. [PMID: 33351587 DOI: 10.1021/acsbiomaterials.0c01437] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Highly crosslinked ultrahigh-molecular-weight polyethylene (UHMWPE) bearings are wear-resistant to reduce aseptic loosening but are susceptible to oxidize in vivo/in vitro, as reported in clinical studies. Despite widespread acceptance of antioxidants in preventing oxidation, the crosslinking efficiency of UHMWPE is severely impacted by antioxidants, the use of which was trapped in a trace amount. Herein, we proposed a new strategy of polyphenol-assisted chemical crosslinking to facilitate the formation of a crosslinking network in high-loaded tea polyphenol/UHMWPE blends. Epigallocatechin gallate (EGCG), a representative of tea polyphenol, was mixed with UHMWPE and peroxide. Multiple reactive phenolic hydroxyl groups of tea polyphenol coupled with the nearby free radicals to form extra crosslinking sites. The crosslinking efficiency was remarkably enhanced with increasing tea polyphenol content, even at a concentration of 8 wt %. Given by the hydrogen donation principle, the high-loaded tea polyphenol also enhanced the oxidation stability of the crosslinked UHMWPE. The antioxidative performance was preserved even after tea polyphenol elution. Moreover, superior antibacterial performance was achieved by the in situ tea polyphenol release from the interconnected pathways in the present design. The strategy of polyphenol-assisted chemical crosslinking is applicable for producing highly crosslinked, antioxidative, and antibacterial UHMWPE, which has promising prospects in clinical applications.
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Affiliation(s)
- Yue Ren
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, 610065 Chengdu, China
| | - Fei-Yu Wang
- Department of Stomatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072 Shanghai, China
| | - Ri-Tong Lan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, 610065 Chengdu, China
| | - Wan-Qun Fu
- Department of Stomatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072 Shanghai, China
| | - Zi-Jian Chen
- Department of Stomatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072 Shanghai, China
| | - Hao Lin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, 610065 Chengdu, China
| | - Shishu Huang
- Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Rizwan M Gul
- Department of Mechanical Engineering, University of Engineering and Technology, 25120 Peshawar, Pakistan
| | - Jing Wang
- Department of Stomatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 200072 Shanghai, China
| | - Jia-Zhuang Xu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, 610065 Chengdu, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, 610065 Chengdu, China
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Abbas HS, Krishnan A, Kotakonda M. Fabrication of Iron Oxide/Zinc Oxide Nanocomposite Using Creeper Blepharis maderaspatensis Extract and Their Antimicrobial Activity. Front Bioeng Biotechnol 2020; 8:595161. [PMID: 33392168 PMCID: PMC7775511 DOI: 10.3389/fbioe.2020.595161] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 11/13/2020] [Indexed: 11/22/2022] Open
Abstract
Green nanotechnology has recently had a significant influence on advances in biological applications. The surface manipulation of iron oxide NPs by zinc oxide is increasing attention for biomedical research. Therefore, this work focused on the phytochemicals of creeper Blepharis maderaspantensis (BM) water extract for synthesizing iron oxide NPs and iron oxide/zinc oxide nanocomposite. The UV spectrum analysis showed a wavelength redshift from 294 to 302 nm of iron oxide/ZnO nanocomposite, and the polydispersity index revealed that the perfect preparations of iron oxide NPs were prepared by boiling 0.25 g of the plant in deionized water then the filtrate added to ferric chloride (1:1 v/v). The HRTEM results also illustrated that amorphous iron oxide NPs are spherical and irregular in shape. However, the iron oxide/ZnO nanocomposite showed a rod shape of ZnO with an average length and width of ∼19.25 ± 3.2 × 3.3 ± 0.6 nm surrounding amorphous iron oxide NPs. Furthermore, a high antimicrobial activity with MRSA and E. coli was demonstrated by iron oxide NPs. However, because of instability and negative surface charge of the iron oxide nanocomposite, there was no antimicrobial activity. Future cytotoxic studies of the iron oxide NPs synthesized with polyphenols of BM extract are desirable, and their applications in medical purposes will be recommended.
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Affiliation(s)
- Heba Salah Abbas
- National Organization for Drug Control and Research, Giza, Egypt
- Scientist Under Scheme of Asian Research Training Fellowship-Developing Countries Scientist (RTF-DCS), Federation of Indian Chambers of Commerce and Industry (FICCI), New Delhi, India
- Department of Pharmaceutical Technology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, India
| | - Akilandeswari Krishnan
- Scientist Under Scheme of Asian Research Training Fellowship-Developing Countries Scientist (RTF-DCS), Federation of Indian Chambers of Commerce and Industry (FICCI), New Delhi, India
- Department of Pharmaceutical Technology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, India
| | - Muddukrishnaiah Kotakonda
- Department of Pharmaceutical Technology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, India
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36
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Chen B, Zhang C, Zhao Y, Wang D, Korshin GV, Ni J, Yan M. Interpreting main features of the differential absorbance spectra of chlorinated natural organic matter: Comparison of the experimental and theoretical spectra of model compounds. WATER RESEARCH 2020; 185:116206. [PMID: 32736281 DOI: 10.1016/j.watres.2020.116206] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/07/2020] [Accepted: 07/19/2020] [Indexed: 06/11/2023]
Abstract
This study compared chlorination-induced changes of the properties of natural organic matter (NOM) represented by standard humic substances and NOM present in pristine and anthropogenically-affect reservoirs, rivers, groundwater and seawater. The chlorination-induced changes of NOM properties were quantified using the differential absorbance spectra (DAS) which were processed via numeric deconvolution. Six Gaussian bands were found to comprise the DAS of all examined waters. These bands (denoted as A0, A1, A2, A3, A4 and A5, respectively) have maxima located at ca. 200, 240, 276, 316, 385 and 547 nm. The bands A1-A4 were observed in the DAS of representative model chlorinated compounds. Quantum chemical (QC) calculations were carried out to examine the intrinsic nature of these bands and electronic transitions associated with them. QC data demonstrate that bands A1 and A2 are present in almost all aromatic organic species, A3 is likely to be associated with acetophenone- and/or styrene-like groups. A4 can be attributed to the engagement of m-hydroxyaromatic and flavone-type groups typical for the polyphenolic moiety in NOM and known to be the key precursors of disinfection by-product (DBP) formation. Thus, the intensity of band A4 is predicted to be an especially strong predictor of DBP formation.
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Affiliation(s)
- Bingya Chen
- Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China
| | - Chenyang Zhang
- Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China
| | - Yanmei Zhao
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, CAS, POB 2871, Beijing 100085, China
| | - Dongsheng Wang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, CAS, POB 2871, Beijing 100085, China
| | - Gregory V Korshin
- Department of Civil and Environmental Engineering, University of Washington, Box 352700, Seattle, WA 98195-2700, United States
| | - Jinren Ni
- Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China
| | - Mingquan Yan
- Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China.
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Ghazy OA, Fouad MT, Saleh HH, Kholif AE, Morsy TA. Ultrasound-assisted preparation of anise extract nanoemulsion and its bioactivity against different pathogenic bacteria. Food Chem 2020; 341:128259. [PMID: 33068847 DOI: 10.1016/j.foodchem.2020.128259] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/05/2020] [Accepted: 09/27/2020] [Indexed: 01/09/2023]
Abstract
The present work aimed to characterize the nanoemulsion of anise seed extract and to compare its efficacy with the bulk extract against pathogenic bacteria. The anise seeds extract was prepared by cold solvent extraction method using ethanol. Nanoemulsion of anise extract was formulated using ultrasound assisted method and analyzed using high-performance liquid chromatography (HPLC), fourier transform infrared spectroscopy (FTIR) and UV-visible spectrophotometry. The antimicrobial activity of the nanoemulsion was tested against seven foodborne pathogenic bacterial species. Results showed that the extract contained anethole (37%), naringenin (21%), and taxifolin (13%) as the major phytochemical components. The average droplet size of the nanoemulsion droplets was measured by dynamic light scattering (DLS) and confirmed by transmission electron microscope to be about 400 nm. Anise extract nanoemulsion showed higher antimicrobial activity against most of the tested pathogens. Anise extract nanoemulsion performed better than bulk extract as an antimicrobial agent against some foodborne pathogenic bacteria.
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Affiliation(s)
- O A Ghazy
- Radiation Chemistry Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), P.O. Box 29, Nasr City, Cairo, Egypt
| | - M T Fouad
- Dairy Science Department, National Research Centre, 33 Bohouth St. Dokki, Giza, Egypt
| | - H H Saleh
- Radiation Chemistry Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), P.O. Box 29, Nasr City, Cairo, Egypt
| | - A E Kholif
- Dairy Science Department, National Research Centre, 33 Bohouth St. Dokki, Giza, Egypt.
| | - T A Morsy
- Dairy Science Department, National Research Centre, 33 Bohouth St. Dokki, Giza, Egypt
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Khan S, Sajid H, Ayub K, Mahmood T. Adsorption behaviour of chronic blistering agents on graphdiyne; excellent correlation among SAPT, reduced density gradient (RDG) and QTAIM analyses. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113860] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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39
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Romeh AA. Synergistic effect of Ficus-zero valent iron supported on adsorbents and Plantago major for chlorpyrifos phytoremediation from water. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 23:151-161. [PMID: 32772548 DOI: 10.1080/15226514.2020.1803201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Chlorpyrifos and the metabolite 3, 5, 6-trichloro-2-pyridinol (TCP) are widespread contamination of aquatic environments especially freshwater fish. The objectives of this study were to evaluate the contribution of using Ficus zero-valent iron nanoparticles supported on adsorbents (F-Fe0 ad) as green nanotechnology and Plantago major as phytoremediation for removing chlorpyrifos and degradation product TCP polluted water. The shapes of F-Fe0 were circular, with sizes from 2.46 nm to 11.49 nm. Wheat bran (WB) showed the highest extent of removal of chlorpyrifos, while Rice straw ash (RSA) showed the lowest extent of removal. F-Fe0 supported on adsorbents has demonstrated faster removal toward chlorpyrifos compared with tested adsorbents or F-Fe0. Chlorpyrifos was removed more quickly and effectively by P. major L. plus F-Fe0 supported on different adsorbents (nearly 100%) than that by P. major (43.76%) or F-Fe0 (81.69%). The degradation product TCP was more greatly accumulated in water treated with F-Fe0 than that P. major alone or F-Fe0 supported with adsorbents and combined with P. major. Furthermore, TCP significantly accumulated in P. major roots and leaves in the water treated with F-Fe0 supported with adsorbents plus P. major more than that in the P. major roots and leaves alone, this is attributed to the role of F-Fe0 adsorbents for the degradation of chlorpyrifos to TCP, Which strongly accumulated in the P. major roots and leaves. It can be concluded that the contribution of using F-Fe0 supported on adsorbents, especially WB as green nanotechnology and P. major as phytoremediation would be a major role for the complete removal of chlorpyrifos from the water with a significant reduction in the toxic degradation product TCP.
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Affiliation(s)
- Ahmed Ali Romeh
- Plant Production Department, Faculty of Technology and Development, Zagazig University, Zagazig, Egypt
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Pritsas A, Tomou EM, Tsitsigianni E, Papaemmanouil CD, Diamantis DA, Chatzopoulou P, Tzakos AG, Skaltsa H. Valorisation of stachysetin from cultivated Stachys iva Griseb. as anti-diabetic agent: a multi-spectroscopic and molecular docking approach. J Biomol Struct Dyn 2020; 39:6452-6466. [PMID: 32731792 DOI: 10.1080/07391102.2020.1799864] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Stachys species are considered as important medicinal plants with numerous health benefit effects. In continuation of our research on the Greek Stachys species, the chemical profile of the aerial parts of cultivated S. iva Griseb. has been explored. The NMR profiles of the plant extract/infusion were used to guide the isolation process, leading to the targeted isolation of seventeen known compounds. The rare acylated flavonoid, stachysetin, was isolated for the third time from plant species in the international literature. Identification of the characteristic signals of stachysetin in the 1D 1H-NMR spectrum of the crude extract was presented. In order to evaluate the potential of the identified chemical space in Stachys to bear possible bioactivity against diabetes, we performed an in silico screening against 17 proteins implicated in diabetes, as also ligand based similarity metrics against established anti-diabetic drugs. The results capitalized the anti-diabetic potency of stachysetin. Its binding profile to the major drug carrier plasma protein serum albumin was also explored along with its photophysical properties suggesting that stachysetin could be recognized and delivered in plasma through serum albumin and also could be tracked through near-infrared imaging. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Aristeidis Pritsas
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, National & Kapodistrian University of Athens, Panepistimiopolis, Zografou, Athens, Greece
| | - Ekaterina-Michaela Tomou
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, National & Kapodistrian University of Athens, Panepistimiopolis, Zografou, Athens, Greece
| | - Eleni Tsitsigianni
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, National & Kapodistrian University of Athens, Panepistimiopolis, Zografou, Athens, Greece
| | - Christina D Papaemmanouil
- Department of Chemistry, Section of Organic Chemistry and Biochemistry, University of Ioannina, Ioannina, Greece
| | - Dimitrios A Diamantis
- Department of Chemistry, Section of Organic Chemistry and Biochemistry, University of Ioannina, Ioannina, Greece
| | - Paschalina Chatzopoulou
- Hellenic Agricultural Organization DEMETER, Institute of Breeding and Plant Genetic Resources, IBPGR, Department of Medicinal and Aromatic Plants, Thessaloniki, Greece
| | - Andreas G Tzakos
- Department of Chemistry, Section of Organic Chemistry and Biochemistry, University of Ioannina, Ioannina, Greece
| | - Helen Skaltsa
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, National & Kapodistrian University of Athens, Panepistimiopolis, Zografou, Athens, Greece
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Green Method Synthesised Graphene-Silver Electrochemical Nanobiosensors for Ethambutol and Pyrazinamide. Processes (Basel) 2020. [DOI: 10.3390/pr8070879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
A novel nanobiosensor was constructed with graphene oxide (GO) sheets coupled to pear extract-based green-synthesised silver nanoparticles (Ag-NPs) to which cytochrome P450-2D6 (CYP2D6) enzyme was attached. The biosensor was applied in the electrochemical detection of the tuberculosis (TB) treatment drugs, ethambutol (EMB) and pyrazinamide (PZA). The surface morphology of the green-synthesised nanocomposites was studied by performing High-Resolution Transmission Electron Microscopy (HR-TEM) and High-Resolution Scanning Electron Microscopy (HR-SEM). Fourier Transform Infrared Spectroscopy (FTIR) and Raman Spectroscopy were used for structural analysis, while Ultraviolet Visible (UV-Vis) Spectroscopy was used in the optical characterisation of the nanocomposite material. Electrochemical studies on glassy carbon electrode (GCE), which were done by Cyclic Voltammetry (CV), showed that the GO|Ag-NPs||GCE electrode was highly conductive, and thereby indicating its suitability as a platform for nanobiosensor development. The non-toxic and low-cost green GO|Ag-NPs|CYP2D6||GCE nanobiosensor was used to determine EMB and PZA. The very low limit of detection (LOD) values of the biosensor for EMB (0.2962 × 10−2 nM, S/N = 3) and PZA (0.897 × 10−2 nM, S/N = 3) demonstrate that the green nanobiosensor is more sensitive than other biosensors reported for EMB and PZA.
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Kyei SK, Akaranta O, Darko G. Synthesis, characterization and antimicrobial activity of peanut skin extract-azo-compounds. SCIENTIFIC AFRICAN 2020. [DOI: 10.1016/j.sciaf.2020.e00406] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Influence of catecholic ring torsion on hydroxyflavones. ACTA CHIMICA SLOVACA 2020. [DOI: 10.2478/acs-2020-0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Systematic quantum chemical investigation of quercetin and selected eight mono- and bihydroxyflavonols is presented. Structural analysis based on the Density Functional Theory showed that the energetically preferred conformation of flavonols substituted at the C5 and C3 atoms by a hydroxyl group is stabilised via intramolecular hydrogen bonds occurring between the (C4)O···HO(3 or 5) atomic pairs. Depending on the hydroxyl group positions, energetically preferred torsional orientation of the phenyl ring with respect to the planar benzo-γ-pyrone moiety changed from 0 to 180 degrees. Gas-phase electron transitions were investigated using the time-dependent DFT treatment. The dependence of maximal wavelengths on the torsional deformation of the phenyl ring is of a similar shape, i.e. minima observed for the perpendicular orientation and maxima for the planar one. Shape and energies of the Highest Occupied (HOMO) and Lowest Unoccupied (LUMO) Molecular Orbitals were compared. The obtained theoretical results were compared with available experimental data.
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Jurinjak Tušek A, Marić L, Benković M, Valinger D, Jurina T, Gajdoš Kljusurić J. In-vitro digestion of the bioactives originating from the Lamiaceae family herbal teas: A kinetic and PLS modeling study. J Food Biochem 2020; 44:e13233. [PMID: 32490545 DOI: 10.1111/jfbc.13233] [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: 01/22/2020] [Revised: 03/09/2020] [Accepted: 03/20/2020] [Indexed: 12/13/2022]
Abstract
The stability of lavender, lemon balm, mint, sage, and thyme teas was investigated using in-vitro simulation of the digestive system. Kinetics of changes in the total polyphenolic content (TPC) and the antioxidant activity during the in-vitro trials were also evaluated. Results showed that TPC of mint teas decreases the fastest. Mathematical models for prediction of the TPC and the antioxidant activity of prepared teas based on UV-VIS and NIR spectra collected before, during, and after simulation showed that the best prediction was obtained for the wavelength ranges from 410 to 900 nm, 904 to 928 nm, and 1,399 to 1699 nm. It was concluded that the NIR can be used for calibration, validation, and classification of teas prepared from Lamiaceae plants. PRACTICAL APPLICATIONS: The bioactives' in-vitro digestion process can successfully be characterized by chemical, spectroscopic, and mathematical analysis. Application of NIR spectroscopy, in combination with multivariate analysis, leads to a reduction of time, costs, and chemical consumption and gives reliable results that pharmaceutical, food, and chemical industries can benefit from.
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Affiliation(s)
- Ana Jurinjak Tušek
- Faculty of Food Technology and Biotechnology, Department of Process Engineering, University of Zagreb, Zagreb, Croatia
| | - Lucija Marić
- Faculty of Food Technology and Biotechnology, Department of Process Engineering, University of Zagreb, Zagreb, Croatia
| | - Maja Benković
- Faculty of Food Technology and Biotechnology, Department of Process Engineering, University of Zagreb, Zagreb, Croatia
| | - Davor Valinger
- Faculty of Food Technology and Biotechnology, Department of Process Engineering, University of Zagreb, Zagreb, Croatia
| | - Tamara Jurina
- Faculty of Food Technology and Biotechnology, Department of Process Engineering, University of Zagreb, Zagreb, Croatia
| | - Jasenka Gajdoš Kljusurić
- Faculty of Food Technology and Biotechnology, Department of Process Engineering, University of Zagreb, Zagreb, Croatia
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Romeh AA, Ibrahim Saber RA. Green nano-phytoremediation and solubility improving agents for the remediation of chlorfenapyr contaminated soil and water. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 260:110104. [PMID: 31941632 DOI: 10.1016/j.jenvman.2020.110104] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 01/01/2020] [Accepted: 01/06/2020] [Indexed: 05/04/2023]
Abstract
Chlorfenapyr is a novel class of insecticide-miticide used for crop protection. It poses substantial risks to the reproductive ability of birds as well as environmental stability. This study was focused on the remediation of chlorfenapyr-polluted soil and water through the combined application of green nanotechnology, solubility improving agents and phytoremediation. An analysis using electron microscopy showed that the green synthesis resulted in circular ficus iron nanoparticles (F-Fe0) with diameters of 2.46 nm-11.49 nm, while the ipomoea-silver (Ip-Ag0) and brassica-silver nanoparticles (Br-Ag0) were circular, cubical, hexagonal, triangular and rod -like in shape with sizes ranging from 6.27 to 21.23 nm in IP-Ag0 and from 6.05 to 15.02 nm in Br-Ag0. After 24 h of treatment with F-Fe0, Ip-Ag0 and Br-Ag0 supported on activated charcoal (Ach), the chlorfenapyr in the aqueous solution was reduced to 86%, 79.70%, and 79.70%, respectively, compared to the 6.16% in aqueous solution. Moreover, after 24 h of treatment with Plantago major plus F-Fe0Ach, P. major plus Ip-Ag0Ach, and P. major plus Br-Ag0Ach, the chlorfenapyr in the aqueous solution was reduced to 93.7%, 91.30%, and 92.92%, respectively, as compared to the 69.27% in P. major. After four days of exposure, the percentage of chlorfenapyr degradation in the soil (i.e. control) only reached 12.40%,while the degradation rates were enhanced by 71.22%, 57.32% and 73.10%, respectively, in the presence of P. major plus nanoparticles (F-Fe0, Ip-Ag0 and Br-Ag0). The integration of green nanotechnology, solubility-improving agents, and phytoremediation by Plantago major has played a major role in the remediation of soil and water contaminated with chlorfenapyr.
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Affiliation(s)
- Ahmed Ali Romeh
- Plant Production Department, Faculty of Technology and Development, Zagazig University, Zagazig, Egypt.
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Synthesis, characterization, quantum chemical calculations and anticancer activity of a Schiff base NNOO chelate ligand and Pd(II) complex. PLoS One 2020; 15:e0231147. [PMID: 32287324 PMCID: PMC7156068 DOI: 10.1371/journal.pone.0231147] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 03/17/2020] [Indexed: 11/19/2022] Open
Abstract
This paper reports the synthesis, characterization, anticancer screening and quantum chemical calculation of a tetradentate Schiff base 2,2'-((1E,1'E)-((2,2-dimethylpropane-1,3-diyl)bis- (azanylylidene))bis(methanylylidene))bis(4-fluorophenol) (L2F) and its Pd (II) complex (PdL2F). The compounds were characterized via UV-Visible, NMR, IR spectroscopy and single crystal x-ray diffraction. Density Functional Theory (DFT) and time-dependent DFT calculations in gas and solvent phases were carried out using B3LYP, B3P86, CAM-B3LYP and PBE0 hybrid functionals combined with LanL2DZ basis set. Complexation of L2F to form PdL2F was observed to cause a bathochromic shift of the maximum absorption bands of n-π* from 327 to 410 nm; an upfield shift for δ (HC = N) from 8.30 to 7.96 ppm and a decreased wavenumber for ν(C = N) from 1637 to 1616 cm-1. Overall, the UV-Vis, NMR and IR spectral data are relatively well reproduced through DFT and TD-DFT methods. L2F and PdL2F showed IC50 of 90.00 and 4.10 μg/mL, respectively, against human colorectal carcinoma (HCT116) cell lines, signifying increased anticancer activity upon complexation with Pd (II).
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Nabais P, Oliveira J, Pina F, Teixeira N, de Freitas V, Brás NF, Clemente A, Rangel M, Silva AMS, Melo MJ. A 1000-year-old mystery solved: Unlocking the molecular structure for the medieval blue from Chrozophora tinctoria, also known as folium. SCIENCE ADVANCES 2020; 6:eaaz7772. [PMID: 32426456 PMCID: PMC7164948 DOI: 10.1126/sciadv.aaz7772] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/22/2020] [Indexed: 05/25/2023]
Abstract
The molecular structure of the medieval watercolor known as folium has finally been solved in the 21st century. The interdisciplinary approach taken was the key to producing extracts that had been prepared following medieval instructions, and shows the blue/purple chromophore as the major dye in Chrozophora tinctoria fruits (shell). A multi-analytical characterization of its structure was made using HPLC-DAD-MS, GC-MS, NMR (1H, 13C, COSY, HSQC, HMBC, INADEQUATE), and computational studies. The results demonstrate that the blue compound corresponds to 6'-hydroxy-4,4'-dimethoxy-1,1'-dimethyl-5'-{[3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]oxy}-[3,3'-bipyridine]-2,2',5,6(1H,1'H)-tetraone, a hermidin derivative, which we named chrozophoridin. Experimental data and computational modeling studies show that this mono-glycosylated dimer is represented by two stable isomers (atropisomers). This is an indispensable piece of knowledge for the characterization of this medieval dye in works of art such as medieval manuscript illuminations and for testing its stability and contributes to the preservation of our cultural heritage.
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Affiliation(s)
- P. Nabais
- REQUIMTE–Laboratório Associado para a Química Verde, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus Caparica, 2829-516 Monte de Caparica, Portugal
| | - J. Oliveira
- REQUIMTE–Laboratório Associado para a Química Verde, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - F. Pina
- REQUIMTE–Laboratório Associado para a Química Verde, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus Caparica, 2829-516 Monte de Caparica, Portugal
| | - N. Teixeira
- REQUIMTE–Laboratório Associado para a Química Verde, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - V. de Freitas
- REQUIMTE–Laboratório Associado para a Química Verde, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - N. F. Brás
- REQUIMTE–UCIBIO, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - A. Clemente
- cE3c–Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - M. Rangel
- REQUIMTE–Laboratório Associado para a Química Verde, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto
| | - A. M. S. Silva
- REQUIMTE–Laboratório Associado para a Química Verde, Departamento de Química, and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
| | - M. J. Melo
- REQUIMTE–Laboratório Associado para a Química Verde, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus Caparica, 2829-516 Monte de Caparica, Portugal
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Molina GA, González-Fuentes F, Loske AM, Fernández F, Estevez M. Shock wave-assisted extraction of phenolic acids and flavonoids from Eysenhardtia polystachya heartwood: A novel method and its comparison with conventional methodologies. ULTRASONICS SONOCHEMISTRY 2020; 61:104809. [PMID: 31670252 DOI: 10.1016/j.ultsonch.2019.104809] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/29/2019] [Accepted: 09/27/2019] [Indexed: 06/10/2023]
Abstract
Phenolic compounds, obtained from plants are important in the food, biomaterial and pharmaceutical industries; however current extraction methods, such as Soxhlet (solid-liquid) extraction, liquid-liquid extraction, microwave-assisted extraction, and ultrasonic extraction (USE), have the disadvantages of large processing times, contamination by solvents, and degradation of analytes. This study demonstrates that shock wave-assisted extraction can be used as a more efficient, eco-friendly and rapid method. Extraction of powdered samples of Eysenhardtia polystachia heartwood, a plant with high concentration of phenolic compounds, exposed to different doses of underwater shock waves, was compared with the conventional methods. Our results revealed that shock wave-assisted extraction (1500 shock waves with a peak positive pressure of approximately 88 MPa) produced 34.54% and 31.95% higher contents than Soxhlet and USE, respectively. Extraction times using shock waves were much shorter than with all other methods tested, proving that it is an attractive method to obtain both phenolic acids and flavonoids without the need for organic solvents. Furthermore, shock waves produced a significantly higher content of total reducing sugars than Soxhlet extraction and less phenolic acids which gives the insight of a more selective extraction of components.
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Affiliation(s)
- Gustavo A Molina
- Posgrado en Ciencia e Ingeniería de Materiales, Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Querétaro, Qro. 76230, Mexico
| | - Fanny González-Fuentes
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Querétaro, Qro. 76230, Mexico
| | - Achim M Loske
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Querétaro, Qro. 76230, Mexico.
| | - Francisco Fernández
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Querétaro, Qro. 76230, Mexico
| | - Miriam Estevez
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Querétaro, Qro. 76230, Mexico.
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49
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Alizadeh A, Bagherinejad A. A Catalyst‐Free Synthetic Route to Modified Isoflavone
via
Multi‐Component Reaction. ChemistrySelect 2020. [DOI: 10.1002/slct.201904674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Abdolali Alizadeh
- Department of ChemistryTarbiat Modares University, P.O. Box 14115-175 Tehran Iran
| | - Akram Bagherinejad
- Department of ChemistryTarbiat Modares University, P.O. Box 14115-175 Tehran Iran
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Ujihara T, Hayashi N. Mechanism of Copigmentation of Monoglucosylrutin with Caffeine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:323-331. [PMID: 31880932 DOI: 10.1021/acs.jafc.9b06235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
4G-α-Glucopyranosylrutin (monoglucosylrutin, MGR) is a flavonol glycoside with quercetin as an aglycone, is pale yellow in color, and engages in both copigmentation and anticopigmentation. In this study, we elucidated the mechanism underlying the copigmentation of MGR upon complexation with caffeine. Three approaches were used: binding analyses based on changes in the absorbance spectrum, NOESY experiments, and DFT and TDDFT calculations using an explicit solvation model. Our findings show that copigmentation mainly results from a bathochromic shift in the absorbance spectrum and not a from hyperchromic effect. MGR and caffeine form a complex in both 1:1 and 1:2 stoichiometric ratios. The calculated optimized 1:1 and 1:2 complex structures were supported by the NOESY spectrum and form a cluster with 13 and 11 water molecules, respectively, through hydrogen bonds. Although HOMO and LUMO contribute most to the excitation of both the MGR monomer and the complexes, these frontier molecular orbitals in the complexes are distributed more widely than those in the MGR monomer. In particular, LUMO in the complexes spreads into the copigment caffeine and the solvent water molecules. This increase in electron delocalization reduces the energy gap between the frontier molecular orbitals, resulting in copigmentation with a bathochromic shift.
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Affiliation(s)
- Tomomi Ujihara
- Food Research Institute , National Agriculture and Food Research Organization (NARO) , 2-1-12 Kannondai , Tsukuba , Ibaraki 305-8642 , Japan
| | - Nobuyuki Hayashi
- Food Research Institute , National Agriculture and Food Research Organization (NARO) , 2-1-12 Kannondai , Tsukuba , Ibaraki 305-8642 , Japan
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