Raw datasets on soil salinity, fatty acid composition, and antioxidant properties of rice bran oil from northeastern Thailand

File 1 – Soil dataRaw soil chemical properties and site information for rice cultivation sites along the Siao Yai River basin, northeastern Thailand.File 2 – RBO yield & bioactive compoundsRaw data for rice bran oil yield, bioactive compounds, and antioxidant activity from RD6 and KDML105 grown under low- and high-salinity conditions at rice cultivation sites.File 3 – Fatty acid composition (GC–MS)Raw GC–MS–derived individual fatty acid methyl ester composition data of rice bran oil from RD6 and KDML105 cultivated under contrasting soil salinity conditions.File 4 – RBO elemental compositionRaw elemental concentration data of rice bran oil measured by atomic absorption spectroscopy from rice cultivated under low- and high-salinity soil conditions.File 5 – Correlation & PCA datasetRaw and processed datasets used for Pearson correlation and principal component analyses linking soil properties with rice bran oil quality traits.