Evaluation of agronomic traits and storage stability in novel rice cultivar ‘Baromi3’ combining floury endosperm and lipoxygenase 3 deficiency
- 1National Institute of Crop and Food Science, Rural Development Administration Wanju Republic of Korea
- 2Department of Food Science and Biotechnology Wonkwang University Iksan Republic of Korea
Abstract
BACKGROUND: Rice milling characteristics and storage stability are critical traits influencing industrial applications. Floury endosperm rice carrying the flo4‐4 allele is valuable for dry milling but exhibits reduced storage stability associated with altered starch structural characteristics. This study developed a novel rice cultivar, ‘Baromi3’, combining the flo4‐4 allele and lipoxygenase 3 (LOX3) deficiency, and evaluated its quality and storage stability.
RESULTS: To revitalize the floury endosperm rice industry, ‘Baromi3’ was developed through marker‐assisted breeding. Compared with ‘Baromi2’, a commercial floury endosperm rice cultivar, ‘Baromi3’ exhibited a 3 day delay in heading and significantly shorter culm length. Dry‐milling characteristics did not differ significantly between the cultivars, indicating that the dry‐milling characteristics were preserved in ‘Baromi3’. In the storage stability assessment, hexanal content increased progressively with storage duration, although its accumulation pattern varied depending on storage temperature and sample types. ‘Baromi3’ maintained lower hexanal content than ‘Baromi2’ under both low‐ (15 °C) and high‐temperature (30 °C) storage conditions. In contrast, rice flour of ‘Baromi2’ showed a greater increase in hexanal content than rice grain under high‐temperature storage, indicating that flour samples were more susceptible to lipid oxidation. These results suggest that LOX3 deficiency suppresses hexanal accumulation and contributes to improved storage stability even with the floury endosperm genetic background.
CONCLUSION: This study demonstrates that ‘Baromi3’ successfully combines floury endosperm traits with improved storage stability. These characteristics highlight its potential value for dry‐milled rice flour production and quality maintenance in the rice‐processing industry. © 2026 The Author(s). Journal of the Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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BibTeX
@article{ha2026evaluation,
title = {{Evaluation of agronomic traits and storage stability in novel rice cultivar ‘Baromi3’ combining floury endosperm and lipoxygenase 3 deficiency}},
author = {Su‐Kyung Ha and Ye‐Ji Lee and Gileung Lee and Hyun‐Sook Lee and Kyeongmin Kang and Jae‐Ryoung Park and Seung Young Lee and Ji‐Eun Kwak and Mina Jin and Ji‐Ung Jeung and Chang Joo Lee and Jung‐Pil Suh},
journal = {Journal of the Science of Food and Agriculture},
year = {2026},
month = jul,
doi = {10.1002/jsfa.70898},
url = {https://doi.org/10.1002/jsfa.70898},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - JOUR
TI - Evaluation of agronomic traits and storage stability in novel rice cultivar ‘Baromi3’ combining floury endosperm and lipoxygenase 3 deficiency
AU - Su‐Kyung Ha
AU - Ye‐Ji Lee
AU - Gileung Lee
AU - Hyun‐Sook Lee
AU - Kyeongmin Kang
AU - Jae‐Ryoung Park
AU - Seung Young Lee
AU - Ji‐Eun Kwak
AU - Mina Jin
AU - Ji‐Ung Jeung
AU - Chang Joo Lee
AU - Jung‐Pil Suh
PY - 2026
DA - 2026/07/16
JO - Journal of the Science of Food and Agriculture
DO - 10.1002/jsfa.70898
UR - https://doi.org/10.1002/jsfa.70898
AB - BACKGROUND: Rice milling characteristics and storage stability are critical traits influencing industrial applications. Floury endosperm rice carrying the flo4‐4 allele is valuable for dry milling but exhibits reduced storage stability associated with altered starch structural characteristics. This study developed a novel rice cultivar, ‘Baromi3’, combining the flo4‐4 allele and lipoxygenase 3 (LOX3) deficiency, and evaluated its quality and storage stability. RESULTS: To revitalize the floury endosperm rice industry, ‘Baromi3’ was developed through marker‐assisted breeding. Compared with ‘Baromi2’, a commercial floury endosperm rice cultivar, ‘Baromi3’ exhibited a 3 day delay in heading and significantly shorter culm length. Dry‐milling characteristics did not differ significantly between the cultivars, indicating that the dry‐milling characteristics were preserved in ‘Baromi3’. In the storage stability assessment, hexanal content increased progressively with storage duration, although its accumulation pattern varied depending on storage temperature and sample types. ‘Baromi3’ maintained lower hexanal content than ‘Baromi2’ under both low‐ (15 °C) and high‐temperature (30 °C) storage conditions. In contrast, rice flour of ‘Baromi2’ showed a greater increase in hexanal content than rice grain under high‐temperature storage, indicating that flour samples were more susceptible to lipid oxidation. These results suggest that LOX3 deficiency suppresses hexanal accumulation and contributes to improved storage stability even with the floury endosperm genetic background. CONCLUSION: This study demonstrates that ‘Baromi3’ successfully combines floury endosperm traits with improved storage stability. These characteristics highlight its potential value for dry‐milled rice flour production and quality maintenance in the rice‐processing industry. © 2026 The Author(s). Journal of the Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
SN - 0022-5142
SN - 1097-0010
ER -