A Bibliometric Analysis of Recent Research on Major Rice Components
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Abstract
Rice is a globally important staple crop with growing scientific attention to its value-added components. This study aimed to conduct a bibliometric analysis to map research trends related to three major rice components: rice starch, rice protein, and rice bran oil. Bibliometric data were retrieved from the Scopus database, covering publications from 2020 to early 2025. A total of 298 documents on rice starch, 141 on rice protein, and 213 on rice bran oil were analyzed using Scopus analytical tools and VOSviewer software for keyword co-occurrence and author co-citation mapping. The findings revealed a consistent growth in research output across all three components, with rice starch receiving the greatest scientific attention, followed by rice bran oil and rice protein. China demonstrated dominant research productivity across authorship, institutional contributions, and funding support. Thematic analysis indicates a strong emphasis on structural characterization, functional properties, processing technologies, and functional food applications. Cluster analysis identified four, five, and five thematic clusters for rice starch, rice protein, and rice bran oil, respectively, highlighting diverse research trajectories. Despite the increasing research output, rice protein remains comparatively underexplored. This study contributes to knowledge mapping in food science by providing a component-level bibliometric perspective and offers insights for research planning, policy development, and industrial innovation in rice-based product development. This bibliometric analysis emphasizes the dynamic and developing nature of rice research, concentrating on three primary components: rice starch, rice protein, and rice bran oil. A substantial rise in research output is evident from the upward trend of research documents between 2020 and 2025. Rice starch is the most extensively researched component, succeeded by rice bran oil and rice protein. China far surpasses other nations in global contributions regarding rice research.
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