Abstract
AimThis study aims to conduct a bibliometric analysis of English walnut (Juglans regia L.) using the Scopus database. This study has also attempted to explore walnut’s nutritional potential, phytochemistry, and functional properties for overall human health benefits. MethodologyThis study uses the R-Bibliometrics package software to explore the Scopus database from 2002 to 2021. The keywords used are “Walnut” OR “Juglans regia” OR “Nutritional Potential” OR “Functional Food” OR “Phytochemistry” OR “Human health”. ResultsThe global trends and bibliometric analysis of walnut from 2002–2021 found that there was a total of 9868 documents indexed in 3151 Scopus-indexed sources. The agricultural and biological sciences recorded the maximum net publication, while the dentistry field recorded the minimum. Countries like China and the United States were the major funding sources, having the maximum net publications all over the globe. Upon analysing international collaboration, countries such as China, the USA, Italy, Iran, Spain, and the United Kingdom emerged as the world’s top collaborators. Maximum co-occurrences of the following keywords found are walnut, omega-3 fatty acid, Juglans regia, and walnut food. The most productive journals in walnut research recorded according to Bradford Law, the most productive walnut research journals were Acta Horticulture, Food Chemistry, Plant Diseases, Journal of Agricultural Hortiscience, Scientia Horticultureae, Nutrients, Molecules, PloS One, and Journal of Ethnopharmacology. People around the world use walnuts in a variety of foods and consider them an integral part of their diets. Walnut contains a variety of bioactive compounds, such as polyphenols, alkaloids, and juglone, as well as nutrients like omega-3 fatty acids, which make it a functional food for humans. Walnuts are much more than just a culinary item in traditional foods; they can provide a variety of human health benefits. ConclusionsThis study attempted to conduct a bibliometric analysis to analyze global trends and research productivity of walnut as a functional food in terms of phytochemistry, nutritional potential, and human health benefits. This study will help to identify the research gap, offer opportunities for multidisciplinary research, and present a novel visualisation map for walnut research. This study declared walnut a functional food for the future.
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