David Ngnokam

894 total citations
44 papers, 658 citations indexed

About

David Ngnokam is a scholar working on Molecular Biology, Plant Science and Food Science. According to data from OpenAlex, David Ngnokam has authored 44 papers receiving a total of 658 indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Molecular Biology, 28 papers in Plant Science and 10 papers in Food Science. Recurrent topics in David Ngnokam's work include Natural product bioactivities and synthesis (22 papers), Phytochemistry and Biological Activities (19 papers) and Essential Oils and Antimicrobial Activity (9 papers). David Ngnokam is often cited by papers focused on Natural product bioactivities and synthesis (22 papers), Phytochemistry and Biological Activities (19 papers) and Essential Oils and Antimicrobial Activity (9 papers). David Ngnokam collaborates with scholars based in Cameroon, France and Germany. David Ngnokam's co-authors include Laurence Voutquenne‐Nazabadioko, Jean‐De‐Dieu Tamokou, Jules‐Roger Kuiate, Léon Azefack Tapondjou, J. Foyere Ayafor, Dominique Harakat, Apollinaire Tsopmo, Olov Sterner, D. A. Fontem and Piebiep Goufo and has published in prestigious journals such as SHILAP Revista de lepidopterología, Tetrahedron and Phytochemistry.

In The Last Decade

David Ngnokam

41 papers receiving 629 citations

Peers

David Ngnokam

PHARM

Mara S.P. Arruda Brazil

Ladislaus K. Mdee South Africa

Nícolas de Castro Campos Pinto Brazil

Mamdouh Abdel‐Mogib Egypt

Maurice Ducret Awouafack Cameroon

Yeong Hun Song South Korea

Giovanna Barbarini Longato Brazil

Mahdi Mojarrab Iran

Nebojša Simić Norway

Simplice Joel N. Tatsimo Cameroon

Mara S.P. Arruda Brazil

David Ngnokam

359 ×1.2

344 ×1.2

150 ×1.0

96 ×1.0

112 ×1.2

PHARM

Citations per year, relative to David Ngnokam David Ngnokam (= 1×) peers Mara S.P. Arruda

Countries citing papers authored by David Ngnokam

Since Specialization

Citations

This map shows the geographic impact of David Ngnokam's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by David Ngnokam with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites David Ngnokam more than expected).

Fields of papers citing papers by David Ngnokam

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by David Ngnokam. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by David Ngnokam. The network helps show where David Ngnokam may publish in the future.

Co-authorship network of co-authors of David Ngnokam

This figure shows the co-authorship network connecting the top 25 collaborators of David Ngnokam. A scholar is included among the top collaborators of David Ngnokam based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with David Ngnokam. David Ngnokam is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Harakat, Dominique, et al.. (2025). Chemical Constituents from Ethyl Acetate Extract of Graptophyllum glandulosum Turrill and New Semi-Synthetic Derivative with Antimicrobial Activities. Advances in Biological Chemistry. 15(1). 18–30.

Tamokou, Jean‐De‐Dieu, et al.. (2024). New triterpenoid saponin from the aerial part of Abrus canescens Welw ex. Bak. (Fabaceae) and their antibacterial activities. Natural Product Research. 39(2). 362–373. 2 indexed citations

Voutquenne‐Nazabadioko, Laurence, et al.. (2024). Semisynthetic Derivatives of Sissotrin Isolated from Trifolium baccarinii Chiov. (Fabaceae) and Evaluation of Their Antibacterial Activities. Advances in Biological Chemistry. 14(1). 27–39. 1 indexed citations

Tamekou, Stephen Lacmata, et al.. (2023). Triterpene and Steroids from Ludwigia abyssinica A. Rich (Onagraceae) Displayed Antimicrobial Activities and Synergistic Effects with Conventional Antibiotics. Evidence-based Complementary and Alternative Medicine. 2023(1). 2975909–2975909. 4 indexed citations

Tamokou, Jean‐De‐Dieu, et al.. (2022). Chemotaxonomy and Antibacterial Activity of the Extracts and Chemical Constituents of Psychotria succulenta Hiern. (Rubiaceae). BioMed Research International. 2022(1). 7856305–7856305. 1 indexed citations

Njouendou, Abdel Jélil, et al.. (2021). Antibacterial, antifungal and antioxidant activities of whole plant chemical constituents of Rumex abyssinicus. BMC Complementary Medicine and Therapies. 21(1). 164–164. 31 indexed citations

Tamokou, Jean‐De‐Dieu, et al.. (2021). Antimicrobial and Antioxidant Secondary Metabolites from Trifolium baccarinii Chiov. (Fabaceae) and Their Mechanisms of Antibacterial Action. BioMed Research International. 2021(1). 3099428–3099428. 13 indexed citations

Ngnokam, David, et al.. (2020). Potential anti-proliferative effects of chemical constituents and hemisynthetic derivatives from Scadoxus pseudocaulus (Amarillydaceae). African Health Sciences. 20(1). 469–475. 3 indexed citations

Tamokou, Jean‐De‐Dieu, et al.. (2018). Antimicrobial activities of saponins from Melanthera elliptica and their synergistic effects with antibiotics against pathogenic phenotypes. Chemistry Central Journal. 12(1). 97–97. 67 indexed citations

10.

Tamokou, Jean‐De‐Dieu, et al.. (2018). Antimicrobial activities of flavonoid glycosides from Graptophyllum grandulosum and their mechanism of antibacterial action. BMC Complementary and Alternative Medicine. 18(1). 252–252. 124 indexed citations

11.

Tamokou, Jean‐De‐Dieu, et al.. (2017). Iridoids from Canthium subcordatum iso-butanol fraction with potent biological activities. BMC Complementary and Alternative Medicine. 17(1). 17–17. 19 indexed citations

12.

Ngnokam, David, et al.. (2016). Cycloartanes from Oxyanthus pallidus and derivatives with analgesic activities. BMC Complementary and Alternative Medicine. 16(1). 97–97. 2 indexed citations

13.

Tamokou, Jean‐De‐Dieu, David Ngnokam, Jules‐Roger Kuiate, et al.. (2015). Antimicrobial and antioxidant flavonoids from the leaves of Oncoba spinosa Forssk. (Salicaceae). BMC Complementary and Alternative Medicine. 15(1). 134–134. 60 indexed citations

14.

Tamokou, Jean‐De‐Dieu, Muhammad Ali, Muhammad Ali, et al.. (2015). Antimicrobial, antioxidant and butyrylcholinesterase inhibition activities of extracts and isolated compounds from Scadoxus pseudocaulus and semi-synthetic farrerol derivatives. South African Journal of Botany. 102. 166–174. 17 indexed citations

15.

Ngnokam, David, et al.. (2015). Five new iridoïd dimers from the fruits of Canthium subcordatum DC (syn. Psydrax subcordata DC). Phytochemistry Letters. 13. 348–354. 11 indexed citations

16.

Ngnokam, David, et al.. (2014). Chevalierinoside B and C: Two new isoflavonoid glycosides from the stem bark of Antidesma laciniatum Muell. Arg (syn. Antidesma chevalieri Beille). Phytochemistry Letters. 9. 149–152. 7 indexed citations

17.

Goufo, Piebiep, D. A. Fontem, & David Ngnokam. (2010). Evaluation of plant extracts for tomato late blight control in Cameroon. New Zealand Journal of Crop and Horticultural Science. 38(3). 171–176. 20 indexed citations

18.

Ngnokam, David, et al.. (2010). Cycloartane glycosides from leaves of Oxyanthus pallidus. Phytochemistry. 71(17-18). 2182–2186. 7 indexed citations

19.

Ngnokam, David, Jean‐Marc Nuzillard, & Christophe Bliard. (2005). SAPELENIN E AND F: NEW ACYCLIC TRITERPENOIDS FROM THE STEM BARK OF ENTANDROPHRAGMA CYLINDRICUM. Bulletin of the Chemical Society of Ethiopia. 19(2). 4 indexed citations

20.

Ngnokam, David, Georges Massiot, & Jean‐Marc Nuzillard. (1994). Steroids and terpenoids from the bark and the wood of Entandrophragma Cylindricum. SHILAP Revista de lepidopterología. 2 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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