Visualization analysis of high voltage pulsed electric field based on Web of Science database

Abstract To deeply understand the development status and research hotspots of high voltage pulsed electric field (HVPEF) technology, this paper takes the Web of Science (WOS) core collection Science Citation Index Expanded (SCI-EXPANDED) database as the literature source, and sets `high voltage pulsed electric field' as the keyword search. The collected 3041 articles (January 1, 1990–December 31, 2022) were used as the research object. CiteSpace and VOSviewer software were used to visually analyze the number of publications, citations, authors, institutions, journals, countries, disciplines, and keywords, and draw a visual map to explore the development context and content evolution of the technology on a global scale. It is found that the HVPEF technology is in a stage of rapid development, and the number of published papers and citations of relevant literature is on the rise. This field has been centered on China and the United States, forming a closely cooperative academic research network. There is also a close cooperative relationship between different authors and institutions. In addition, the research on HVPEF is mainly applied to physics, plasma, etc., but food, materials, and other disciplines are also involved. The research content extends from the PEF itself to cells, microorganisms, etc., and gradually from principle-based research to the use of technology to achieve the purpose. In recent years, the research on the extraction of active compounds assisted by PEF is increasing, which is likely to become one of the future research hotspots in this field. In summary, the HVPEF is receiving more and more attention, and has a very good research and application prospect.