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Unique Metabolic Profiles of Korean Rice According to Polishing Degree, Variety, and Geo-Environmental Factors
- Unique Metabolic Profiles of Korean Rice According to Polishing Degree, Variety, and Geo-Environmental Factors
- Kang, Yujin; Lee, Bo Mi; Lee, Eun Mi; Kim, Chang-Ho; Seo, Jeong-Ah; Choi, Hyung-Kyoon; Kim, Young-Suk; Lee, Do Yup
- Ewha Authors
- SCOPUS Author ID
- Issue Date
- Journal Title
- FOODS vol. 10, no. 4
- brown rice; white rice; primary metabolites; secondary metabolites; variety; cultivation region; metabolomics
- SCIE; SCOPUS
- Document Type
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- The precise determination of the chemical composition in crops is important to identify their nutritional and functional value. The current study performed a systematic delineation of the rice metabolome, an important staple in Asia, to investigate the following: (1) comparative features between brown and white rice; (2) variety-specific composition (Ilpum vs. Odae); and (3) cultivation of region-dependent metabolic content. Global metabolic profiling and data-driven statistics identified the exclusive enrichment of compounds in brown rice compared to white rice. Next, the authors investigated a variety-governed metabolic phenotype among various geo-environmental factors. Odae, the early-ripening cultivar, showed higher contents of most chemicals compared to the late-ripening cultivar, Ilpum. The authors identified regional specificity for cultivation among five areas in Korea which were characterized by polishing degree and cultivar type. Finally, the current study proposes a possible linkage of the region-specific metabolic signatures to soil texture and total rainfall. In addition, we found tryptophan metabolites that implied the potential for microbe-host interactions that may influence crop metabolites.
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