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El Sadda RR, Eissa MS, Elafndi RK, Moawed EA, El-Zahed MM, Saad HR. Synthesis and biological evaluation of titanium dioxide/thiopolyurethane composite: anticancer and antibacterial effects. BMC Chem 2024; 18:35. [PMID: 38368376 PMCID: PMC10874576 DOI: 10.1186/s13065-024-01138-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 02/06/2024] [Indexed: 02/19/2024] Open
Abstract
Nanocomposites incorporating titanium dioxide (TiO2) have a significant potential for various industrial and medical applications. These nanocomposites exhibit selectivity as antimicrobial and anticancer agents. Antimicrobial activity is crucial for medical uses, including applications in food processing, packaging, and surgical instruments. Additionally, these nanocomposites exhibit selectivity as anticancer agents. A stable nanocomposite as a new anticancer and antibacterial chemical was prepared by coupling titanium dioxide nanoparticles with a polyurethane foam matrix through the thiourea group. The titanium dioxide/thiopolyurethane nanocomposite (TPU/TiO2) was synthesized from low-cost Ilmenite ore and commercial polyurethane foam. EDX analysis was used to determine the elemental composition of the titanium dioxide (TiO2) matrix. TiO2NPs were synthesized and were characterized using TEM, XRD, IR, and UV-Vis spectra. TiO2NPs and TPU foam formed a novel composite. The MTT assay assessed Cisplatin and HepG-2 and MCF-7 cytotoxicity in vitro. Its IC50 values for HepG-2 and MCF-7 were 122.99 ± 4.07 and 201.86 ± 6.82 µg/mL, respectively. The TPU/TiO2 exhibits concentration-dependent cytotoxicity against MCF-7 and HepG-2 cells in vitro. The selective index was measured against both cell lines; it showed its safety against healthy cells. Agar well-diffusion exhibited good inhibition zones against Escherichia coli (12 mm), Bacillus cereus (10 mm), and Aspergillus niger (19 mm). TEM of TPU/TiO2-treated bacteria showed ultrastructure changes, including plasma membrane detachment from the cell wall, which caused lysis and bacterial death. TPU/TiO2 can treat cancer and inhibit microbes in dentures and other items. Also, TPU/TiO2 inhibits E. coli, B. cereus, and A. niger microbial strains.
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Affiliation(s)
- Rana R El Sadda
- Chemistry Department, Faculty of Science, Damietta University, P.O. Box 34517, New Damietta, Egypt.
| | - Mai S Eissa
- Chemistry Department, Faculty of Science, Damietta University, P.O. Box 34517, New Damietta, Egypt
| | - Rokaya K Elafndi
- Chemistry Department, Faculty of Science, Damietta University, P.O. Box 34517, New Damietta, Egypt
| | - Elhossein A Moawed
- Chemistry Department, Faculty of Science, Damietta University, P.O. Box 34517, New Damietta, Egypt
| | - Mohamed M El-Zahed
- Botany and Microbiology Department, Faculty of Science, Damietta University, New Damietta, Egypt
| | - Hoda R Saad
- Geology Department, Faulty of Science, Damietta University, New Damietta, Egypt
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Ibáñez MD, Sánchez-Ballester NM, Blázquez MA. Healthy Zerumbone: From Natural Sources to Strategies to Improve Its Bioavailability and Oral Administration. PLANTS (BASEL, SWITZERLAND) 2022; 12:5. [PMID: 36616138 PMCID: PMC9823342 DOI: 10.3390/plants12010005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/06/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
Zerumbone is a multifunctional compound with antimicrobial, antitumor, hyperalgesic, antioxidant and anti-inflammatory applications, and constitutes a point molecule for the future synthesis of derivatives with improved efficiency. This monocyclic sesquiterpenoid is found in high content in wild ginger (Zingiber zerumbet Smith), a perennial herb with economic importance as an ornamental as well as a medicinal plant. The presence of zerumbone is a distinctive feature that allows identification and differentiation from other species, not only in Zingiber, but also in Curcuma, Alpinia, Boesenbergia, Ethlingera and Ammomum spp., as well as related families (Costaceaee). To successfully use zerumbone in areas such as medicine, food and agriculture, further research on improving its low solubility and bioavailability, as well as its preservation, is a major current priority. In addition, despite its promising pharmacological activities, preclinical and clinical studies are required to demonstrate and evaluate the in vivo efficacy of zerumbone.
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Affiliation(s)
- María Dolores Ibáñez
- Departament de Farmacologia, Facultat de Farmàcia, Universitat de València, Avd. Vicent Andrés Estellés s/n, Burjassot, 46100 València, Spain
| | - Noelia M. Sánchez-Ballester
- ICGM, Département Chimie et Matériaux Moléculaires, University of Montpellier, CNRS, ENSCM, 34090 Montpellier, France
- Department of Pharmacy, Nîmes University Hospital, 30900 Nîmes, France
| | - María Amparo Blázquez
- Departament de Farmacologia, Facultat de Farmàcia, Universitat de València, Avd. Vicent Andrés Estellés s/n, Burjassot, 46100 València, Spain
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Fan X, Liu Z, Jia Z, Wei Y, Xie D, Zhang J, Wang B, Zhang X. A novel preparation for siderophore‐assisted copper and zinc enrichment in yeast. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.16131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiao‐ying Fan
- School of Life Science and Engineering, Key Laboratory of Herbal‐Tebitan Drug Screening and Deep Processing of Gansu Province Lanzhou University of Technology Lanzhou China
| | - Zi‐yu Liu
- School of Life Science and Engineering, Key Laboratory of Herbal‐Tebitan Drug Screening and Deep Processing of Gansu Province Lanzhou University of Technology Lanzhou China
| | - Zhi‐peng Jia
- School of Life Science and Engineering, Key Laboratory of Herbal‐Tebitan Drug Screening and Deep Processing of Gansu Province Lanzhou University of Technology Lanzhou China
| | - Ya‐ru Wei
- School of Life Science and Engineering, Key Laboratory of Herbal‐Tebitan Drug Screening and Deep Processing of Gansu Province Lanzhou University of Technology Lanzhou China
| | - Dong‐dong Xie
- School of Life Science and Engineering, Key Laboratory of Herbal‐Tebitan Drug Screening and Deep Processing of Gansu Province Lanzhou University of Technology Lanzhou China
| | - Ji Zhang
- College of Life Sciences Northwest Normal University Lanzhou China
| | - Bei Wang
- School of Life Science and Engineering, Key Laboratory of Herbal‐Tebitan Drug Screening and Deep Processing of Gansu Province Lanzhou University of Technology Lanzhou China
| | - Xin‐guo Zhang
- School of Life Science and Engineering, Key Laboratory of Herbal‐Tebitan Drug Screening and Deep Processing of Gansu Province Lanzhou University of Technology Lanzhou China
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Behaviour of Aspergillus parasiticus in aflatoxin production as influenced by storage parameters using response surface methodology approach. Int J Food Microbiol 2021; 357:109369. [PMID: 34474198 DOI: 10.1016/j.ijfoodmicro.2021.109369] [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: 03/05/2021] [Revised: 08/09/2021] [Accepted: 08/20/2021] [Indexed: 01/20/2023]
Abstract
Aspergillus parasiticus is a pre-harvest and postharvest pathogen that is known to produce aflatoxin; however, it is less studied compared to A. flavus. Inappropriate storage conditions are a cause of food spoilage and growth of mycotoxigenic fungi especially in low moisture foods thus constituting hazards to health. Hence, this study investigated the behaviour of A. parasiticus on aflatoxin production in inoculated wheat flour as influenced by storage conditions using the response surface methodology. Twenty experimental runs consisting of independent variables (incubation temperature (A), time (B) and (C) moisture content) and responses (aflatoxin concentrations, i.e., AFB1, AFB2, AFG1, AFG2 and AFTOT) were developed. A central composite face-centered design was used with lower and upper limits: A (25-35 °C), B (7-15 days) and C (15-25%), while the non-inoculated wheat flour served as the negative control. Aflatoxin production was determined using High Performance Liquid Chromatography (HPLC) according to standard procedures. Numerical and graphical process variables were optimized, adequate models were predicted and optimal point prediction for aflatoxin concentration was determined. AFG1 concentrations ranged from 1.10 to 360.06 μg/g, AFG2 (0.91-446.94 μg/g), AFB2 (7.95-488.77 μg/g), AFB1 (17.21-20,666.6 μg/g) and AFTOT (15.91-21,851.09 μg/g). Aflatoxin concentration increased with increase in 'B' and 'A' but decreased with prolonged increase in 'B'. AFB1 concentrations in A. parasiticus inoculated wheat flour increased at prolonged 'B' and 'A' at constant moisture (12.09%). A reduced cubic model was significantly adequate to describe the relationship between process variables and responses (AFG1 and AFG2), cubic model (AFB1 and AFTOT) and a transformed square root cubic model for AFG2 concentrations (p ≤ 0.05). 'A' influenced AFG1 production more than 'C' while 'C' and 'A' had no significant effect on AFG2 production. Process variables 'AB' influenced AFB2 concentrations more than 'C' while 'A' had a more significant effect on the AFTOT production than 'B' (p ≤ 0.05). The predicted (R2) and adjusted coefficient of regression (adj R2) were in reasonable agreement. After optimal point prediction and validation, minimum aflatoxin concentration ≤ 0 μg/g could be achieved at the predicted conditions (A = 30.42 °C, B = 10.58 days and C = 14.49%) except in AFG2 (3.33 μg/g).
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Updates on the Functions and Molecular Mechanisms of the Genes Involved in Aspergillus flavus Development and Biosynthesis of Aflatoxins. J Fungi (Basel) 2021; 7:jof7080666. [PMID: 34436205 PMCID: PMC8401812 DOI: 10.3390/jof7080666] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 08/08/2021] [Accepted: 08/10/2021] [Indexed: 12/13/2022] Open
Abstract
Aspergillus flavus (A. flavus) is a ubiquitous and opportunistic fungal pathogen that causes invasive and non-invasive aspergillosis in humans and animals. This fungus is also capable of infecting a large number of agriculture crops (e.g., peanuts, maze, cotton seeds, rice, etc.), causing economic losses and posing serious food-safety concerns when these crops are contaminated with aflatoxins, the most potent naturally occurring carcinogens. In particular, A. flavus and aflatoxins are intensely studied, and they continue to receive considerable attention due to their detrimental effects on humans, animals, and crops. Although several studies have been published focusing on the biosynthesis of the aforementioned secondary metabolites, some of the molecular mechanisms (e.g., posttranslational modifications, transcription factors, transcriptome, proteomics, metabolomics and transcriptome, etc.) involved in the fungal development and aflatoxin biosynthesis in A. flavus are still not fully understood. In this study, a review of the recently published studies on the function of the genes and the molecular mechanisms involved in development of A. flavus and the production of its secondary metabolites is presented. It is hoped that the information provided in this review will help readers to develop effective strategies to reduce A. flavus infection and aflatoxin production.
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Gil-de-la-Fuente A, Mamani-Huanca M, Stroe MC, Saugar S, Garcia-Alvarez A, Brakhage AA, Barbas C, Otero A. Aspergillus Metabolome Database for Mass Spectrometry Metabolomics. J Fungi (Basel) 2021; 7:jof7050387. [PMID: 34063531 PMCID: PMC8156648 DOI: 10.3390/jof7050387] [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: 04/16/2021] [Revised: 05/06/2021] [Accepted: 05/12/2021] [Indexed: 01/20/2023] Open
Abstract
The Aspergillus Metabolome Database is a free online resource to perform metabolite annotation in mass spectrometry studies devoted to the genus Aspergillus. The database was created by retrieving and curating information on 2811 compounds present in 601 different species and subspecies of the genus Aspergillus. A total of 1514 scientific journals where these metabolites are mentioned were added as meta-information linked to their respective compounds in the database. A web service to query the database based on m/z (mass/charge ratio) searches was added to CEU Mass Mediator; these queries can be performed over the Aspergillus database only, or they can also include a user-selectable set of other general metabolomic databases. This functionality is offered via web applications and via RESTful services. Furthermore, the complete content of the database has been made available in .csv files and as a MySQL database to facilitate its integration into third-party tools. To the best of our knowledge, this is the first database and the first service specifically devoted to Aspergillus metabolite annotation based on m/z searches.
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Affiliation(s)
- Alberto Gil-de-la-Fuente
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, 28660 Madrid, Spain; (M.M.-H.); (C.B.); (A.O.)
- Department of Information Technology, Escuela Politécnica Superior, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, 28660 Madrid, Spain; (S.S.); (A.G.-A.)
- Correspondence:
| | - Maricruz Mamani-Huanca
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, 28660 Madrid, Spain; (M.M.-H.); (C.B.); (A.O.)
| | - María C. Stroe
- Department of Molecular and Applied Microbiology, Hans Knöll Institute (HKI), Leibniz Institute for Natural Product Research and Infection Biology, Institute of Microbiology, Friedrich Schiller University Jena, 07745 Jena, Germany; (M.C.S.); (A.A.B.)
| | - Sergio Saugar
- Department of Information Technology, Escuela Politécnica Superior, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, 28660 Madrid, Spain; (S.S.); (A.G.-A.)
| | - Alejandra Garcia-Alvarez
- Department of Information Technology, Escuela Politécnica Superior, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, 28660 Madrid, Spain; (S.S.); (A.G.-A.)
| | - Axel A. Brakhage
- Department of Molecular and Applied Microbiology, Hans Knöll Institute (HKI), Leibniz Institute for Natural Product Research and Infection Biology, Institute of Microbiology, Friedrich Schiller University Jena, 07745 Jena, Germany; (M.C.S.); (A.A.B.)
| | - Coral Barbas
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, 28660 Madrid, Spain; (M.M.-H.); (C.B.); (A.O.)
| | - Abraham Otero
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, 28660 Madrid, Spain; (M.M.-H.); (C.B.); (A.O.)
- Department of Information Technology, Escuela Politécnica Superior, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte, 28660 Madrid, Spain; (S.S.); (A.G.-A.)
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Pandey AK, Chávez-González ML, Silva AS, Singh P. Essential oils from the genus Thymus as antimicrobial food preservatives: Progress in their use as nanoemulsions-a new paradigm. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.076] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Sun S, Zhao R, Xie Y, Liu Y. Photocatalytic degradation of aflatoxin B1 by activated carbon supported TiO2 catalyst. Food Control 2019. [DOI: 10.1016/j.foodcont.2019.01.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Park HS, Jun SC, Han KH, Hong SB, Yu JH. Diversity, Application, and Synthetic Biology of Industrially Important Aspergillus Fungi. ADVANCES IN APPLIED MICROBIOLOGY 2017; 100:161-202. [PMID: 28732553 DOI: 10.1016/bs.aambs.2017.03.001] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The filamentous fungal genus Aspergillus consists of over 340 officially recognized species. A handful of these Aspergillus fungi are predominantly used for food fermentation and large-scale production of enzymes, organic acids, and bioactive compounds. These industrially important Aspergilli primarily belong to the two major Aspergillus sections, Nigri and Flavi. Aspergillus oryzae (section Flavi) is the most commonly used mold for the fermentation of soybeans, rice, grains, and potatoes. Aspergillus niger (section Nigri) is used in the industrial production of various enzymes and organic acids, including 99% (1.4 million tons per year) of citric acid produced worldwide. Better understanding of the genomes and the signaling mechanisms of key Aspergillus species can help identify novel approaches to enhance these commercially significant strains. This review summarizes the diversity, current applications, key products, and synthetic biology of Aspergillus fungi commonly used in industry.
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Affiliation(s)
- Hee-Soo Park
- Kyungpook National University, Daegu, Republic of Korea
| | | | | | | | - Jae-Hyuk Yu
- University of Wisconsin, Madison, WI, United States
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