Browsing by Author "Tamfu, Alfred Ngenge"
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Anti-Quorum Sensing and Antioxidant Activity of Essential Oils Extracted From Juniperus Species, Growing Spontaneously in Tebessa Region (East of Algeria)
Boudiba, Sameh; Tamfu, Alfred Ngenge; Berka, Baya; Ceylan, Özgür (SAGE Publications Inc., 2021)The chemical composition of essential oils (EOs) extracted from the aerial parts of 2 species of Juniperus was determined by Gas Chromatography-Mass Spectrometry (GC-MS). In total, 65 and 58 compounds accounting for 90.3% ... -
Antibiofilm and anti-quorum sensing activities of polyethylene imine coated magnetite and nickel ferrite nanoparticles
Ceylan, Özgür; Tamfu, Alfred Ngenge; İspirli Doğaç, Yasemin; Teke, Mustafa (Springer Science and Business Media Deutschland GmbH, 2020)This study was aimed at synthesizing polyethyleneimine-coated magnetic nanoparticles and evaluating their effect on pathogenic bacteria. Polyethyleneimine-coated magnetite (PEIMnF) and nickel ferrite (PEINF) nanoparticles ... -
Antibiofilm and Anti-Quorum Sensing Potential of Cycloartane-Type Triterpene Acids from Cameroonian Grassland Propolis: Phenolic Profile and Antioxidant Activity of Crude Extract
Tamfu, Alfred Ngenge; Ceylan, Özgür; Cârâc, Geta; Talla, Emmanuel; Dinica, Rodica Mihaela (MDPI, 2022)Propolis is very popular for its beneficial health properties, such as antimicrobial activity and antioxidant effects. It is one of the most long-serving traditional medicines to mankind due to its interesting chemical ... -
Antibiofilm and Anti-Quorum Sensing Potential of Safely-Synthesized Hydrated Zirconium Oxide-Coated Alginate Beads against Some Pathogenic Bacteria
Tamfu, Alfred Ngenge; İspirli Doğaç, Yasemin; Ceylan, özgür; Dediu, Andreea Botezatu; Dinica, Rodica Mihaela (Hindawi Limited, 2023)Water is essential to life, but access to uncontaminated water remains a global challenge. Metal oxides possess particular characteristics required for removing heavy metals, inorganic and organic pollutants from wastewater ... -
Antibiofilm, antiquorum sensing and antioxidant activity of secondary metabolites from seeds of Annona senegalensis, Persoon
Tamfu, Alfred Ngenge; Ceylan, Özgür; Fru, Godloves Chi; Öztürk, Mehmet; Duru, Mehmet Emin; Shaheen, Farzana (Academic Press Ltd- Elsevier Science Ltd, 2020)The increasing resistance of bacteria to antibiotics has motivated the interest in potent natural compounds capable of disrupting bacterial cell-to-cell communication. Column chromatography of seed extract of Annona ... -
Assessment of in vitro activities and chemical profiling of Senecio hoggariensis growing in Algerian Sahara
Arab, Yasmine; Şahin, Bihter; Ceylan, Özgür; Zellagui, Amar; Ölmez Tokul, Özge; Küçükaydın, Selçuk; Tamfu, Alfred Ngenge; Gherraf, Noureddine; Öztürk, Mehmet (Society for Indonesian Biodiversity, 2022)The in vitro antioxidant, anticholinesterase, tyrosinase inhibitory, antibiofilm, and anti-quorum sensing activities of the ethyl acetate extract of Senecio hoggariensis, growing in Algerian Sahara, were studied along with ... -
Chronic Gastric Ulcer Healing Actions of the Aqueous Extracts of Staple Plant Foods of the North-West, Adamawa, and West Regions of Cameroon
Mikwangock, Hauberline Domegne; Tamfu, Alfred Ngenge; Amang, André Perfusion; Siwe, Gael Tchokomeni; Küçükaydın, Selçuk (PMC, 2023)Aim: This study is aimed at establishing phenolic compound profile and assessing the possible antiulcer activities of aqueous extracts of some staple plant foods from the West and North-West regions of Cameroon against ... -
Disruption of Biofilm Formation and Quorum Sensing in Pathogenic Bacteria by Compounds from Zanthoxylum Gilletti (De Wild) PG Waterman
kome, Hermia Nalova; Tamfu, Alfred Ngenge; Abdou, Jean Pierre; Fouotsa, Hugues; Nangmo, Pamela Kemda; Özgür, Ceylan (SPRINGER, 2023)Microbial resistance is facilitated by biofilm formation and quorum-sensing mediated processes. In this work, the stem bark (ZM) and fruit extracts (ZMFT) of Zanthoxylum gilletii were subjected to column chromatography and ... -
Evaluation of anti-quorum sensing and antibiofilm effects of secondary metabolites from Gambeya lacourtiana (De Wild) Aubr. & Pellegr against selected pathogens
Talla, Rostan Mangoua; Tamfu, Alfred Ngenge; Wakeu, Brussine Nadège Kweka; Ceylan, Özgür (BMC, 2023)Background: Microbial infections cause serious health problems especially with the rising antibiotic resistance which accounts for about 700,000 human deaths annually. Antibiotics which target bacterial death encounter ... -
HPLC-DAD Phenolic Composition, Antioxidant, Anticholinesterase, Antidiabetic and Anti-quorum Sensing Properties of Bitter Kola (Garcinia kola) and Kolanut (Cola acuminata)
Boudiba, Sameh; Küçükaudın, Selçuk; Tamfu, Alfred Ngenge; Blaise, Kom; Munvera, Aristide Mfifen; Ceylan, Özgür (WOLTERS KLUWER MEDKNOW PUBLICATIONS, 2023)Background: Eating Cola acuminata and Garcinia cola nuts in African societies symbolizes in socio-cultural hospitality. They stimulate the nervous system, reduce fatigue and sleep. Objectives:To determine the phenolic ... -
HPLC-DAD phenolic profiles, antibiofilm, anti-quorum sensing and enzyme inhibitory potentials of Camellia sinensis (L.) O. Kuntze and Curcuma longa L.
Tamfu, Alfred Ngenge; Ceylan, Özgür; Küçükaydın, Selçuk; Duru, Mehmet Emin (Academic Press, 2020)This study aimed at investigating phenolic composition, anti-quorum sensing and enzyme inhibitory potential of Camellia sinensis and Curcuma longa. HPLC-DAD identified and quantified curcumin (398.67 ± 0.34 mg/g), ... -
In Vitro and In Silico Evaluation of Anticholinesterase and Antidiabetic Effects of Furanolabdanes and Other Constituents from Graptophyllum pictum (Linn.) Griffith
Tanko Metiefeng, Nathalie; Tamfu, Alfred Ngenge; Tagatsing, Maurice Fotsing; Küçükaydın, Selçuk (MDPI, 2023)Graptophyllum pictum is a tropical plant noticeable for its variegated leaves and exploited for various medicinal purposes. In this study, seven compounds, including three furanolabdane diterpenoids, i.e., Hypopurin E, ... -
Non-alkaloid cholinesterase inhibitory compounds from natural sources
Tamfu, Alfred Ngenge; Küçükaydın, Selçuk; Yeskaliyeva, Balakyz; Öztürk, Mehmet; Dinica, Rodica Mihaela (MDPI, 2021)Alzheimer’s disease (AD) is a severe neurodegenerative disorder of different brain regions accompanied by distresses and affecting more than 25 million people in the world. This progressive brain deterioration affects the ... -
Phenolic Composition, Enzyme Inhibitory and Anti-quorum Sensing Activities of Cinnamon (Cinnamomum zeylanicum Blume) and Basil (Ocimum basilicum Linn)
Tamfu, Alfred Ngenge; Küçükaydın, Selçuk; Ceylan, Özgür; Saraç, Nurdan; Duru, Mehmet Emin (Springer, 2021)Cinnamomum zeylanicum and Ocimum basilicum are two plants used by many cultures for food and medicinal purposes. The phenolic composition of ethanol extracts of both plants were determined by HPLC-DAD. A total of seventeen ... -
Phenolic profiles, antioxidant, antiquorum sensing, antibiofilm and enzyme inhibitory activities of selected Acacia species collected from Benin
Alain, Koudoro Yaya; Tamfu, Alfred Ngenge; Küçükaydın, Selçuk; Ceylan, Özgür; Cokou Pascal, Agbangnan Dossa; Félicien, Avlessi (Academic Press, 2022)Gum arabica is a local commercial nutraceutical and food preservative collected mostly from acacia plants. HPLC-DAD analysis identified gallic acid, syringic acid, ferulic acid, coumarin, rutin and rosmarinic acid in ... -
A preliminary study of chemical profiles of honey, cerumen, and propolis of the african stingless bee meliponula ferruginea
Popova, Milena Petkova; Gerginova, Dessislava; Trusheva, Boryana S.; Simova, Svetlana D.; Tamfu, Alfred Ngenge; Ceylan, Özgür; Clark, Kerry; Bankova, Vassya Stefanova (MDPI AG, 2021)Recently, the honey and propolis of stingless bees have been attracting growing atten-tion because of their health-promoting properties. However, studies on these products of African Meliponini are still very scarce. In ... -
Synthesis and evaluation of inhibitory potentials of microbial biofilms and quorumsensing by 3-(1,3-dithian-2-ylidene) pentane2,4-dione and ethyl-2-cyano-2-(1,3-dithian-2-ylidene) acetate
Tamfu, Alfred Ngenge; Boukhedena, Wafia; Boudiba, Sameh; Deghboudj, Samir; Ceylan, Özgür (Pensoft Publishers, 2022)The virulence and resistance of pathogenic microorganisms are promoted by quorum-sensing (QS) mediated traits and biofilms. The development of antimicrobial agents which can reduce the incidence of microbial resistance by ... -
Synthesis of a new diarylhydrazone derivative and an evaluation of its in vitro biofilm inhibition and quorum sensing disruption along with a molecular docking study
Boudiba, Sameh; Tamfu, Alfred Ngenge; Hanini, Karima; Selatnia, Ilhem (SAGE Publications Ltd, 2023)Molecules that target quorum sensing and biofilm inhibition are useful antimicrobials. In this regard, a new diarylhydrazone was synthesized and characterized using infrared, high-resolution mass spectrometry and nuclear ... -
Synthesis of benzoyl esters of beta-amyrin and lupeol and evaluation of their antibiofilm and antidiabetic activities
Tamfu, Alfred Ngenge; Munvera, Aristide Mfifen; Botezatu, Andreea Veronica Dediu; Ceylan, Özgür (ELSEVIER, 2022)Diabetes as well as the enhanced microbial multidrug resistance resulting from biofilm formation, constitutes some of the major health problems around the world. Triterpenoids and their derivatives have been shown to have ... -
Synthesis of cross-linked diazaborine-based polymeric microparticles with antiquorum sensing, anti-swarming, antimicrobial, and antibiofilm properties
Tamfu, Alfred Ngenge; Koçak, Gökhan; Ceylan, Özgür; Çıtak, Funda; Bütün, vural; Çiçek, Hüseyin (John Wiley and Sons Inc, 2023)Transmission of infectious diseases and resistance by microorganisms is a global health threat. Antimicrobial polymers are increasingly being developed as biocides with greater applications than traditional antibiotics. ...
