Jizan, Саудовская Аравия
Jizan, Саудовская Аравия
Indigenous Knowledge and Heritage Center, Ghibaish College of Science & Technology
Jeddah, Саудовская Аравия
УДК 58 Ботаника
Sclerocarya birrea (A. Rich.) Hochst. is an African wild tree found in many countries across the continent. Its leaves, bark, root, and fruits are used in food, cosmetics, and traditional medicine. However, no systematic bibliometric review on S. birrea have been performed so far. This study covered publications made in 1986–2022 and investigated such bibliometric indicators as knowledge dynamics, links and structure, relevant journals, productive organizations, renowned authors, authoring patterns, national and international collaboration levels, etc. The bibliometric data on a total of 369 publications were downloaded from Scopus database and analyzed using the MS-Excel and VOSViewer software. The Scopus publications on S. birrea showed a versatile range in the interdisciplinary areas of research, with agricultural and biological sciences predominating. The Republic of South Africa was responsible for the largest number of citations. All in all, 63 countries published research on S. birrea in the specified time period, and the share of African countries was 65.43% of the total global research. Co-authorship and international collaboration were registered for six clusters. A total of 1114 researchers and 160 institutions actively contributed to S. birrea studies, with 37 having a minimum of five publications. Mapping of knowledge structure using the keyword co-occurrence revealed the related research areas. The Journal of Ethnopharmacology took the lead in terms of average citation. The co-citation analysis revealed some remarkable dynamics in S. birrea research. This bibliometric study provides a complete insight into S. birrea research development and publication patterns over the last 36 years.
Bibliometric analysis, citation analysis, research-based data, Sclerocarya birrea, marula, Scopus, VOSViewe
1. Manhivi VE, Slabbert RM, Sivakumar D. Co-ingestion of natal plums (Carissa macrocarpa) and marula nuts (Sclerocarya birrea) in a snack bar and its effect on phenolic compounds and bioactivities. Molecules. 2022;27(1):310. https://doi.org/10.3390/molecules27010310
2. Mariod AA, Abdelwahab SI. Sclerocarya birrea (Marula), an African tree of nutritional and medicinal uses: A review. Food Reviews International. 2012;28(4):375–388. https://doi.org/10.1080/87559129.2012.660716
3. Samikannu R, Raj RA, Murugesan S, Venkatachary SK, Stonier AA. Assessing the dielectric performance of Sclerocarya birrea (Marula oil) and mineral oil for eco-friendly power transformer applications. Alexandria Engineering Journal. 2022;61(1):355–366. https://doi.org/10.1016/j.aej.2021.06.002
4. Mariod A, Matthäus B, Eichner K, Hussein IH. Improving the oxidative stability of sunflower oil by blending with Sclerocarya birrea and Aspongopus viduatus oils. Journal of Food Lipids. 2005;12(2):150–158. https://doi.org/10.1111/j.1745-4522.2005.00013.x
5. Glew RS, VanderJagt DJ, Huang Y-S, Chuang L-T, Bosse R, Glew RH. Nutritional analysis of the edible pit of Sclerocarya birrea in the Republic of Niger (daniya, Hausa). Journal of Food Composition and Analysis. 2004;17(1):99–111. https://doi.org/10.1016/S0889-1575(03)00101-7
6. Vermaak I, Kamatou GPP, Komane-Mofokeng B, Viljoen AM, Beckett K. African seed oils of commercial importance – Cosmetic applications. South African Journal of Botany. 2011;77(4):920–933. https://doi.org/10.1016/j.sajb.2011.07.003
7. Shackleton SE, Shackleton CM, Cunningham T, Lombard C, Sullivan CA, Netshiluvhi TR. Knowledge on Sclerocarya birrea subsp. caffra with emphasis on its importance as a non-timber forest product in South and southern Africa: A summary. Part 1: Taxonomy, ecology and role in rural livelihoods. Southern African Forestry Journal. 2002;194(1):27–41. https://doi.org/10.1080/20702620.2002.10434589
8. Ngueguim FT, Esse EC, Dzeufiet PDD, Gounoue RK, Bilanda DC, Kamtchouing P, et al. Oxidised palm oil and sucrose induced hyperglycemia in normal rats: Effects of Sclerocarya birrea stem barks aqueous extract. BMC Complementary Medicine and Therapies. 2015;16:47. https://doi.org/10.1186/s12906-016-1009-0
9. Komane B, Vermaak I, Summers B, Viljoen A. Safety and efficacy of Sclerocarya birrea (A. Rich.) Hochst (Marula) oil: A clinical perspective. Journal of Ethnopharmacology. 2015;176:327–335. https://doi.org/10.1016/j.jep.2015.10.037
10. Zimba N, Wren S, Stucki A. Three major tree nut oils of southern central Africa: Their uses and future as commercial base oils. International Journal of Aromatherapy. 2005;15(4):177–182. https://doi.org/10.1016/j.ijat.2005.10.009
11. Prinsloo G, Street RA. Marula [Sclerocarya birrea (A. Rich) Hochst]: A review of traditional uses, phytochemistry, and pharmacology. In: Juliani HR, Simon JE, Ho C-T, editors. African natural plant products Volume II: Discoveries and challenges in chemistry, health, and nutrition. Washington: American Chemical Society; 2013. pp. 19–32. https://doi.org/10.1021/bk-2013-1127.ch002
12. Braca A, Politi M, Sanogo R, Sanou H, Morelli I, Pizza C, et al. Chemical composition and antioxidant activity of phenolic compounds from wild and cultivated Sclerocarya birrea (Anacardiaceae) leaves. Journal of Agricultural and Food Chemistry. 2003;51(23):6689–6695. https://doi.org/10.1021/jf030374m
13. Mariod AA, Matthäus B, Hussein IH. Antioxidant properties of methanolic extracts from different parts of Sclerocarya birrea. International Journal of Food Science and Technology. 2008;43(5):921–926. https://doi.org/10.1111/j.1365-2621.2007.01543.x
14. Musabayane CT, Gondwe M, Kamadyaapa DR, Moodley K, Ojewole JAO. The effects of Sclerocarya birrea [(a. rich.) hochst.][Anacardiaceae] stem-bark aqueous extract on blood glucose, kidney and cardiovascular function in rats. Endocrine Abstracts. 2006;12.
15. Gathirwa JW, Rukunga GM, Njagi ENM, Omar SA, Mwitari PG, Guantai AN, et al. The in vitro anti-plasmodial and in vivo anti-malarial efficacy of combinations of some medicinal plants used traditionally for treatment of malaria by the Meru community in Kenya. Journal of Ethnopharmacology. 2008;115(2):223–231. https://doi.org/10.1016/j.jep.2007.09.021
16. Belemtougri RG, Traore A, Ouedraogo Y, Sanou SD, Sawadogo L. Toxicological effects of Sclerocarya birrea (A. Rich) Hochst (Anacardiaceae) and Psidium guajava L.(Myrtaceae) leaf extracts on mice and their pharmacological effects on rat duodenum. International Journal of Pharmacology. 2006;2(5):557–562. https://doi.org/10.3923/ijp.2006.557.562
17. Galvez J, Zarzuelo A, Crespo ME, Utrilla MP, Jimenez J, Spiessens C, et al. Antidiarrhoeic activity of Sclerocarya birrea bark extract and its active tannin constituent in rats. Phytotherapy Research. 1991;5(6):276–278. https://doi.org/10.1002/ptr.2650050611
18. Garba SH, Ahmadu S, John IA. The effect of aqueous stem bark extract of Sclerocarya birrea (Hoechst) on alcohol carbon tetrachloride induced liver damage in rats. Pakistan Journal of Biological Sciences. 2006;9(12):2283–2287. https://doi.org/10.3923/pjbs.2006.2283.2287
19. Glew RH, Glew RS, Chuang L-T, Huang Y-S, Millson M, Constans D, et al. Amino acid, mineral and fatty acid content of pumpkin seeds (Cucurbita spp) and Cyperus esculentus nuts in the Republic of Niger. Plant Foods for Human Nutrition. 2006;61:49–54. https://doi.org/10.1007/s11130-006-0010-z
20. Ojewole JAO. Hypoglycemic effect of Sclerocarya birrea {(A. Rich.) Hochst.}[Anacardiaceae] stem-bark aqueous extract in rats. Phytomedicine. 2003;10(8):675–681. https://doi.org/10.1078/0944-7113-00295
21. van Wyk JA, Malan FS, Randles JL. How long before resistance makes it impossible to control some field strains of Haemonchus contortus in South Africa with any of the modern anthelmintics? Veterinary Parasitology. 1997;70(1–3):111–122. https://doi.org/10.1016/S0304-4017(96)01147-8
22. Concari A, Kok G, Martens P. Recycling behaviour: Mapping knowledge domain through bibliometrics and text mining. Journal of Environmental Management. 2022;303:114160. https://doi.org/10.1016/j.jenvman.2021.114160
23. Faskhutdinova ER, Sukhikh AS, Le VM, Minina VI, Khelef MEA, Loseva AI. Effects of bioactive substances isolated from Siberian medicinal plants on the lifespan of Caenorhabditis elegans. Foods and Raw Materials. 2022;10(2):340–352. https://doi.org/10.21603/2308-4057-2022-2-544
24. Alfonzo PM, Sakaraida T, Hasting-Tolsma M. Bibliometrics: Visualizing the impact of nursing research. Online Journal of Nursing Informatics. 2014;18(1).
25. Kokol P, Blažun Vošner H, Završnik J. Application of bibliometrics in medicine: A historical bibliometrics analysis. Health Information and Libraries Journal. 2020;38(2):125–138. https://doi.org/10.1111/hir.12295
26. Boudry C. Availability of ORCIDs in publications archived in PubMed, MEDLINE, and Web of Science Core Collection. Scientometrics. 2021;126:3355–3371. https://doi.org/10.1007/s11192-020-03825-7
27. Kokol P, Vošner HB. Discrepancies among Scopus, Web of Science, and PubMed coverage of funding information in medical journal articles. Journal of the Medical Library Association. 2018;106(1):81–86. https://doi.org/10.5195/JMLA.2018.181
28. Thelwall M. Dimensions: A competitor to Scopus and the Web of Science? Journal of Informetrics. 2018;12(2):430–435. https://doi.org/10.1016/j.joi.2018.03.006
29. Burnham JF. Scopus database: A review. Biomedical Digital Libraries. 2006;3:1. https://doi.org/10.1186/1742-5581-3-1
30. Martín-Martín A, Orduna-Malea E, Thelwall M, López-Cózar ED. Google Scholar, Web of Science, and Scopus: A systematic comparison of citations in 252 subject categories. Journal of Informetrics. 2018;12(4):1160–1177. https://doi.org/10.1016/j.joi.2018.09.002
31. Zhu J, Liu W. A tale of two databases: The use of Web of Science and Scopus in academic papers. Scientometrics. 2020;123:321–335. http://dx.doi.org/10.1007/s11192-020-03387-8
32. Orduña-Malea E, Costas R. Link-based approach to study scientific software usage: The case of VOSviewer. Scientometrics. 2021;126:8153–8186. https://doi.org/10.1007/s11192-021-04082-y
33. van Eck NJ, Waltman L. Software survey: VOSviewer, a computer program for bibliometric mapping. Scientometrics. 2010;84:523–538. https://doi.org/10.1007/s11192-009-0146-3
34. Eloff JN. Antibacterial activity of Marula (Sclerocarya birrea (A. rich.) Hochst. subsp. caffra (Sond.) Kokwaro) (Anacardiaceae) bark and leaves. Journal of Ethnopharmacology. 2001;76(3):305–308. https://doi.org/10.1016/S0378-8741(01)00260-4
35. Gouwakinnou GN, Lykke AM, Assogbadjo AE, Sinsin B. Local knowledge, pattern and diversity of use of Sclerocarya birrea. Journal of Ethnobiology and Ethnomedicine. 2011;7:8. https://doi.org/10.1186/1746-4269-7-8
36. Ndhlala AR, Kasiyamhuru A, Mupure C, Chitindingu K, Benhura MA, Muchuweti M. Phenolic composition of Flacourtia indica, Opuntia megacantha and Sclerocarya birrea. Food Chemistry. 2007;103(1):82–87. https://doi.org/10.1016/j.foodchem.2006.06.066
37. Fouche G, Adenubi OT, Leboho T, McGaw LJ, Naidoo V, Wellington KW, et al. Acaricidal activity of the aqueous and hydroethanolic extracts of 15 South African plants against rhipicephalus turanicus and their toxicity on human liver and kidney cells. Onderstepoort Journal of Veterinary Research. 2019;86(1):a1951. https://doi.org/10.4102/ojvr.v86i1.1665
38. Fouche G, Ramafuthula M, Maselela V, Mokoena M, Senabe J, Leboho T, et al. Acaricidal activity of the organic extracts of thirteen South African plants against Rhipicephalus (Boophilus) decoloratus (Acari: Ixodidae). Veterinary Parasitology. 2016;224:39–43. https://doi.org/10.1016/j.vetpar.2016.05.011
39. Koné WM, Vargas M, Keiser J. Anthelmintic activity of medicinal plants used in Côte d'Ivoire for treating parasitic diseases. Parasitology Research. 2012;110:2351–2362. https://doi.org/10.1007/s00436-011-2771-z
40. McGaw LJ, van der Merwe D, Eloff JN. In vitro anthelmintic, antibacterial and cytotoxic effects of extracts from plants used in South African ethnoveterinary medicine. The Veterinary Journal. 2007;173(2):366–372. https://doi.org/10.1016/j.tvjl.2005.09.004
41. Ndlela SZ, Mkwanazi MV, Chimonyo M. In vitro efficacy of plant extracts against gastrointestinal nematodes in goats. Tropical Animal Health and Production. 2021;53:295. https://doi.org/10.1007/s11250-021-02732-0
42. Bhatt PR, Pandya KB, Patel UP, Patel HB, Modi CM. Survey on ethnoveterinary practices around Junagadh, Gujarat, India. Indian Journal of Pharmaceutical Sciences. 2019;81(1):161–167. https://doi.org/10.4172/pharmaceutical-sciences.1000493
43. Mokgolodi NC, Ding Y, Setshogo MP, Ma C, Liu Y. The importance of an indigenous tree to southern African communities with specific relevance to its domestication and commercialization: A case of the marula tree. Forestry Studies in China. 2011;13:36–44. https://doi.org/10.1007/s11632-011-0110-1
44. Aksnes DW, Langfeldt L, Wouters P. Citations, citation indicators, and research quality: An overview of basic concepts and theories. SAGE Open. 2019;9. https://doi.org/10.1177/2158244019829575
45. Mariod A, Matthäus B, Eichner K. Fatty acid, tocopherol and sterol composition as well as oxidative stability of three unusual sudanese oils. Journal of Food Lipids. 2005;11(3):179–189. https://doi.org/10.1111/j.1745-4522.2004.01131.x
46. Mariod A, Matthäus B, Eichner K, Hussein IH. Frying quality and oxidative stability of two unconventional oils. Journal of the American Oil Chemists' Society. 2006;83(6):529–538. https://doi.org/10.1007/s11746-006-1236-5
47. Mariod A, Matthäus B, Eichner K, Hussein IH. Long-term storage of three unconventional oils. Grasas y Aceites. 2008;59(1):16–22.
48. Mariod A, Matthäus B, Eichner K, Hussein IH. Phenolic compounds of three unconventional sudanese oils. Acta Scientiarum Polonorum, Technologia Alimentaria. 2015;14(1):63–69. https://doi.org/10.17306/J.AFS.2015.1.7
49. Mariod A, Matthäus B, Hussein IH. Effect of stripping methods on the oxidative stability of three unconventional oils. Journal of the American Oil Chemists' Society. 2010;88(5):603–609. https://doi.org/10.1007/s11746-010-1703-x
50. Mariod AA, Matthäus B, Eichner K, Hussein IH. Antioxidant activity of extracts from Sclerocarya birrea kernel oil cake. Grasas y Aceites. 2006;57(4):361–366.
51. Mariod AA, Matthäus B, Idris YMA, Abdelwahab SI. Fatty acids, tocopherols, phenolics and the antimicrobial effect of Sclerocarya birrea kernels with different harvesting dates. Journal of the American Oil Chemists' Society. 2009;87(4):377–384. https://doi.org/10.1007/s11746-009-1510-4
52. Taha E, Mariod A, Abouelhawa S, El-Geddawy M, Sorour M, Matthäus B. Antioxidant activity of extracts from six different Sudanese plant materials. European Journal of Lipid Science and Technology. 2010;112(11):1263–1269. https://doi.org/10.1002/ejlt.201000326
53. Ajiferuke I, Wolfram D. Citer analysis as a measure of research impact: Library and information science as a case study. Scientometrics. 2010;83:623–638. https://doi.org/10.1007/s11192-009-0127-6
54. Tijssen RJW, van Raan AFJ. Mapping changes in science and technology: Bibliometric co-occurrence analysis of the R&D literature. Evaluation Review. 1994;18(1):98–115. https://doi.org/10.1177/0193841X9401800110
55. Ikeda D, Taniguchi Y, Koga K. The Normalized Impact Index for Keywords in Scholarly Papers to Detect Subtle Research Topics. Proceedings of the 8th International Workshop on Mining Scientific Publications. Wuhan: Association for Computational Linguistics; 2020. p. 42–47.
56. Thelwall M, Wilkinson D. Finding similar academic Web sites with links, bibliometric couplings and colinks. Information Processing and Management. 2004;40(3):515–526. https://doi.org/10.1016/S0306-4573(03)00042-6
57. Karakus M, Ersozlu A, Clark AC. Augmented reality research in education: A bibliometric study. Eurasia Journal of Mathematics, Science and Technology Education. 2019;15(10):em1755. https://doi.org/10.29333/ejmste/103904
58. Yu Y, Li Y, Zhang Z, Gu Z, Zhong H, Zha Q, et al. A bibliometric analysis using VOSviewer of publications on COVID-19. Annals of Translational Medicine. 2020;8(13):816. https://doi.org/10.21037/atm-20-4235
59. Rasoanaivo P, Wright CW, Willcox ML, Gilbert B. Whole plant extracts versus single compounds for the treatment of malaria: Synergy and positive interactions. Malaria Journal. 2011;10:S4. https://doi.org/10.1186/1475-2875-10-S1-S4
60. Moyo M, Ndhlala AR, Finnie JF, van Staden J. Phenolic composition, antioxidant and acetylcholinesterase inhibitory activities of Sclerocarya birrea and Harpephyllum caffrum (Anacardiaceae) extracts. Food Chemistry. 2010;123(1):69–76. https://doi.org/10.1016/j.foodchem.2010.03.130
61. van de Venter M, Roux S, Bungu LC, Louw J, Crouch NR, Grace OM, et al. Antidiabetic screening and scoring of 11 plants traditionally used in South Africa. Journal of Ethnopharmacology. 2008;119(1):81–86. https://doi.org/10.1016/j.jep.2008.05.031
62. Akinnifesi FK, Kwesiga F, Mhango J, Chilanga T, Mkonda A, Kadu CAC, et al. Towards the development of Miombo fruit trees as commercial tree crops in Southern Africa. Forests, Trees and Livelihoods. 2006;16(1):103–121. https://doi.org/10.1080/14728028.2006.9752548
63. Cho MA, Debba P, Mathieu R, Naidoo L, van Aardt J, Asner GP. Improving discrimination of Savanna Tree species through a multiple-endmember spectral angle mapper approach: Canopy-level analysis. IEEE Transactions on Geoscience and Remote Sensing. 2010;48(11):4133–4142. https://doi.org/10.1109/TGRS.2010.2058579
64. Musa MS, Abdelrasool FE, Elsheikh EA, Ahmed LAMN, Mahmoud ALE, Yagi SM. Ethnobotanical study of medicinal plants in the Blue Nile State, South-eastern Sudan. Journal of Medicinal Plants Research. 2011;5(17):4287–4297.
65. Hamza OJM, van den Bout-van den Beukel CJP, Matee MIN, Moshi MJ, Mikx FHM, Selemani HO, et al. Antifungal activity of some Tanzanian plants used traditionally for the treatment of fungal infections. Journal of Ethnopharmacology. 2006;108(1):124–132. https://doi.org/10.1016/j.jep.2006.04.026
66. Lamien-Meda A, Lamien CE, Compaoré MMY, Meda RNT, Kiendrebeogo M, Zeba B, et al. Polyphenol content and antioxidant activity of fourteen wild edible fruits from Burkina Faso. Molecules. 2008;13(3):581–594. https://doi.org/10.3390/molecules13030581
67. Rwomushana I, Ekesi S, Gordon I, Ogol CKPO. Host plants and host plant preference studies for Bactrocera invadens (Diptera: Tephritidae) in Kenya, a new invasive fruit fly species in Africa. Annals of the Entomological Society of America. 2008;101(2):331–340. https://doi.org/10.1603/0013-8746(2008)101[331:HPAHPP]2.0.CO;2
68. Moyo M, Finnie JF, van Staden J. In vitro morphogenesis of organogenic nodules derived from Sclerocarya birrea subsp. caffra leaf explants. Plant Cell, Tissue and Organ Culture. 2009;98:273–280. https://doi.org/10.1007/s11240-009-9559-1
69. Annarelli A, Battistella C, Nonino F, Parida V, Pessot E. Literature review on digitalization capabilities: Co-citation analysis of antecedents, conceptualization and consequences. Technological Forecasting and Social Change. 2021;166:120635. https://doi.org/10.1016/j.techfore.2021.120635
