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Kimchi cabbage (Brassica rapa subsp. pekinensis [Lour.]) Metabolic changes during growing seasons in the Republic of Korea

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Abstract

Kimchi cabbage is a cool-season plant, but it is grown year-round to meet the high demand for kimchi production. Understanding the plant’s seasonal characteristics is crucial for ensuring consistent quality. However, kimchi cabbages are grown in diverse locations with varied growing conditions and soil types, which creates an obstacle for producing uniform kimchi. To address this issue, we conducted research on sensorial-related metabolites and glucosinolates to characterize kimchi cabbages from four seasons in the Republic of Korea. Our findings revealed that fall and winter-grown kimchi cabbages had higher levels of compatible solutes (proline and sucrose) compared to those from spring and summer. These differences are likely due to low temperatures after the heading stage and freezing soil that induces drought stress. Additionally, extensive pest damage in the spring and summer increased the bitterness of kimchi cabbage, which may be attributed to neoglucobrassicin. These kimchi cabbage characteristics were confirmed with five cultivars grown in Naju, Jeollanam Province, for the spring and fall seasons. Our study suggests that kimchi cabbages grown in spring and summer have similar metabolite levels and increasing temperature regimes, a trend also found in fall/winter-grown kimchi cabbages. This study is the first attempt to characterize kimchi cabbage attributes grown during four different seasons.

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Acknowledgements

This work was supported by the World Institute of Kimchi (KE2102-2-2, KE2302-1) funded by the Ministry of Science and ICT, Republic of Korea and by the National Research Foundation of Korea (NRF) grant funded by the Korea government. (MSIT) (2023R1C1C1007733). The authors thank those who helped with field preparation (Jung Yong Gyun) and administration work from the Chonnam National University in Naju (team leader Jin Kyung Kim).

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Seung-Hun Chae: Data curation, Formal analysis, Investigation, Methodology, Writing. Hyeon-Woo Moon, Young Bae Jung, Sung Hee Park, Hye-Young Seo: Formal analysis, Investigation, Methodology. Sung Gi Min, Kang-Mo Ku: Conceptualization, Data curation, Formal analysis, Investigation, Writing – Revision

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Correspondence to Kang-Mo Ku.

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Communicated by Yurina Kwack.

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Chae, SH., Min, S.G., Moon, HW. et al. Kimchi cabbage (Brassica rapa subsp. pekinensis [Lour.]) Metabolic changes during growing seasons in the Republic of Korea. Hortic. Environ. Biotechnol. 65, 1–13 (2024). https://doi.org/10.1007/s13580-023-00546-7

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  • DOI: https://doi.org/10.1007/s13580-023-00546-7

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