Abstract
Nitrogen is a necessary element for plant growth; therefore, it is important to study the influence of N fertilisers on crop metabolites. In this study, we investigate the variability of endogenous metabolites in brown rice fertilised with different amounts of nitrogen. We identified 489 metabolites in brown rice. Compared to non-nitrogen fertilised groups, there were 59 differentially activated metabolic pathways in the nitrogen-fertilised groups. Additionally, there were significantly differential secondary metabolites, especially flavonoids, between groups treated with moderate (210 kg N/hm2) and excessive amounts of nitrogen (420 kg N/hm2). Nitrogen fertilisation upregulated linoleic acid metabolism and most steroids, steroid derivatives, and flavonoid compounds, which have antioxidant activity. The DPPH, ABTS, and hydroxyl radical scavenging rates were higher in fertilised groups than in the non-fertilised group. These findings provide a theoretical basis to enhance the health benefits of brown rice by improving fertilisation.
Subject
Plant Science,Health Professions (miscellaneous),Health (social science),Microbiology,Food Science
Reference31 articles.
1. Liang, H., Tao, D., Zhang, Q., Zhang, S., Wang, J., Liu, L., Wu, Z., and Sun, W. Nitrogen fertilizer application rate impacts eating and cooking quality of rice after storage. PLoS ONE, 2021. 16.
2. Metabolite profiling of the response to high-nitrogen fertilizer during grain development of bread wheat (Triticum aestivum L.);Zhen;J. Cereal Sci.,2016
3. Effects of Different Nitrogen Application Patterns on Dry Matter Accumulation and Yield of Rice in Double Cropping Rice Field;Yilan;Crop Res.,2019
4. The revisited levels of free and bound phenolics in rice: Effects of the extraction procedure;Alves;Food Chem.,2016
5. Kim, S.-H., Yang, Y.-J., and Chung, I.-M. The Effect of Degree of Milling on the Nutraceutical Content in Ecofriendly and Conventional Rice (Oryza sativa L.). Foods, 2020. 9.
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